Re: [PATCH v3 00/16] add Intel X722 iWARP driver

[Faisal Latif]

On Mon, Apr 04, 2016 at 12:39:29AM -0700, Christoph Hellwig wrote:
> On Wed, Jan 20, 2016 at 01:40:00PM -0600, Faisal Latif wrote:
> > This driver provides iWARP RDMA functionality for the Intel(R) X722 Ethernet
> > controller for PCI Physical Functions. It is in early product cycle
> > and having the driver in the kernel will allow users to have hardware 
> > support
> > when available for purchase.
> 
> Just curious: how is this driver supposed to work?  It doesn't seem to
> support FRWRs despite the iWarp spec requiring support for it.  It also
> sets IB_DEVICE_MEM_MGT_EXTENSIONS despite the lack of this methods,
> which will lead to instant crashes when using any of the usual drivers.
> 

Thank Christoph,

We are addressing it in the next patch series.

Faisal

Re: [PATCH v3 00/16] add Intel X722 iWARP driver

[Faisal Latif]

On Thu, Jan 21, 2016 at 07:05:48PM +0200, Or Gerlitz wrote:
> On 1/21/2016 5:32 PM, Steve Wise wrote:
> >Only a single user-space daemon is used.
> 
> Good.
> 
> >Someone from Intel might have insight into the architecture and design.  
> >Perhaps the intention is that individual drivers might want to have their 
> >own handlers for these various operations.  But currently they all use the 
> >core/common ones.
> 
> But if there's single daemon there and one set of pre-defined  callbacks,
> why different netlink commands are needed? in what case the damon uses
> RDMA_NL_NES or RDMA_NL_C4IW or the new define and why?
> 
> Or.

The Intel X722 iWARP driver implements the port mapper interface as is in the 
current kernel, utilizing iwpm.

The portmapper daemon sends netlink messages to the client drivers (nes, cxgb4) 
and RDMA_NL_NES/RDMA_NL_C4IW
enums are part of the netlink message header used by the netlink protocol to 
deliver the messages to the
corresponding client.

We can certainly take up the discussion on improving the current port mapper 
design/implementation. But
that would be more appropriate in a separate thread.

Thanks
Faisal

[PATCH v3 14/16] i40iw: virtual channel handling files

[Faisal Latif]

i40iw_vf.[ch] and i40iw_virtchnl[ch] are used for virtual
channel support for iWARP VF module.

Changes since v2:
code cleanup

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_vf.c   |  85 +++
 drivers/infiniband/hw/i40iw/i40iw_vf.h   |  62 +++
 drivers/infiniband/hw/i40iw/i40iw_virtchnl.c | 748 +++
 drivers/infiniband/hw/i40iw/i40iw_virtchnl.h | 124 +
 4 files changed, 1019 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_vf.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_vf.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_virtchnl.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_virtchnl.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_vf.c 
b/drivers/infiniband/hw/i40iw/i40iw_vf.c
new file mode 100644
index 000..cb0f183
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_vf.c
@@ -0,0 +1,85 @@
+/***
+*
+* Copyright (c) 2015-2016 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_osdep.h"
+#include "i40iw_register.h"
+#include "i40iw_status.h"
+#include "i40iw_hmc.h"
+#include "i40iw_d.h"
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+#include "i40iw_vf.h"
+
+/**
+ * i40iw_manage_vf_pble_bp - manage vf pble
+ * @cqp: cqp for cqp' sq wqe
+ * @info: pble info
+ * @scratch: pointer for completion
+ * @post_sq: to post and ring
+ */
+enum i40iw_status_code i40iw_manage_vf_pble_bp(struct i40iw_sc_cqp *cqp,
+  struct i40iw_manage_vf_pble_info 
*info,
+  u64 scratch,
+  bool post_sq)
+{
+   u64 *wqe;
+   u64 temp, header, pd_pl_pba = 0;
+
+   wqe = i40iw_sc_cqp_get_next_send_wqe(cqp, scratch);
+   if (!wqe)
+   return I40IW_ERR_RING_FULL;
+
+   temp = LS_64(info->pd_entry_cnt, I40IW_CQPSQ_MVPBP_PD_ENTRY_CNT) |
+   LS_64(info->first_pd_index, I40IW_CQPSQ_MVPBP_FIRST_PD_INX) |
+   LS_64(info->sd_index, I40IW_CQPSQ_MVPBP_SD_INX);
+   set_64bit_val(wqe, 16, temp);
+
+   header = LS_64((info->inv_pd_ent ? 1 : 0), 
I40IW_CQPSQ_MVPBP_INV_PD_ENT) |
+   LS_64(I40IW_CQP_OP_MANAGE_VF_PBLE_BP, I40IW_CQPSQ_OPCODE) |
+   LS_64(cqp->polarity, I40IW_CQPSQ_WQEVALID);
+   set_64bit_val(wqe, 24, header);
+
+   pd_pl_pba = LS_64(info->pd_pl_pba >> 3, I40IW_CQPSQ_MVPBP_PD_PLPBA);
+   set_64bit_val(wqe, 32, pd_pl_pba);
+
+   i40iw_debug_buf(cqp->dev, I40IW_DEBUG_WQE, "MANAGE VF_PBLE_BP WQE", 
wqe, I40IW_CQP_WQE_SIZE * 8);
+
+   if (post_sq)
+   i40iw_sc_cqp_post_sq(cqp);
+   return 0;
+}
+
+struct i40iw_vf_cqp_ops iw_vf_cqp_ops = {
+   i40iw_manage_vf_pble_bp
+};
diff --git a/drivers/infiniband/hw/i40iw/i40iw_vf.h 
b/drivers/infiniband/hw/i40iw/i40iw_vf.h
new file mode 100644
index 000..f649f3a
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_vf.h
@@ -0,0 +1,62 @@
+/***
+*
+* Copyright (c) 2015-2016 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may cho

[PATCH v3 08/16] i40iw: add hw and utils files

[Faisal Latif]

i40iw_hw.c, i40iw_utils.c and i40iw_osdep.h are files to handle
interrupts and processing.

Changes since v1:
Cleanup/removed some macros reported by Christoph Hellwig.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_hw.c|  730 +
 drivers/infiniband/hw/i40iw/i40iw_osdep.h |  214 +
 drivers/infiniband/hw/i40iw/i40iw_utils.c | 1256 +
 3 files changed, 2200 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_hw.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_osdep.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_utils.c

diff --git a/drivers/infiniband/hw/i40iw/i40iw_hw.c 
b/drivers/infiniband/hw/i40iw/i40iw_hw.c
new file mode 100644
index 000..bee9ba6
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_hw.c
@@ -0,0 +1,730 @@
+/***
+*
+* Copyright (c) 2015-2016 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+#include "i40iw.h"
+
+/**
+ * i40iw_initialize_hw_resources - initialize hw resource during open
+ * @iwdev: iwarp device
+ */
+u32 i40iw_initialize_hw_resources(struct i40iw_device *iwdev)
+{
+   unsigned long num_pds;
+   u32 resources_size;
+   u32 max_mr;
+   u32 max_qp;
+   u32 max_cq;
+   u32 arp_table_size;
+   u32 mrdrvbits;
+   void *resource_ptr;
+
+   max_qp = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_QP].cnt;
+   max_cq = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_CQ].cnt;
+   max_mr = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_MR].cnt;
+   arp_table_size = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_ARP].cnt;
+   iwdev->max_cqe = 0xF;
+   num_pds = max_qp * 4;
+   resources_size = sizeof(struct i40iw_arp_entry) * arp_table_size;
+   resources_size += sizeof(unsigned long) * BITS_TO_LONGS(max_qp);
+   resources_size += sizeof(unsigned long) * BITS_TO_LONGS(max_mr);
+   resources_size += sizeof(unsigned long) * BITS_TO_LONGS(max_cq);
+   resources_size += sizeof(unsigned long) * BITS_TO_LONGS(num_pds);
+   resources_size += sizeof(unsigned long) * BITS_TO_LONGS(arp_table_size);
+   resources_size += sizeof(struct i40iw_qp **) * max_qp;
+   iwdev->mem_resources = kzalloc(resources_size, GFP_KERNEL);
+
+   if (!iwdev->mem_resources)
+   return -ENOMEM;
+
+   iwdev->max_qp = max_qp;
+   iwdev->max_mr = max_mr;
+   iwdev->max_cq = max_cq;
+   iwdev->max_pd = num_pds;
+   iwdev->arp_table_size = arp_table_size;
+   iwdev->arp_table = (struct i40iw_arp_entry *)iwdev->mem_resources;
+   resource_ptr = iwdev->mem_resources + (sizeof(struct i40iw_arp_entry) * 
arp_table_size);
+
+   iwdev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY |
+   IB_DEVICE_MEM_WINDOW | IB_DEVICE_MEM_MGT_EXTENSIONS;
+
+   iwdev->allocated_qps = resource_ptr;
+   iwdev->allocated_cqs = >allocated_qps[BITS_TO_LONGS(max_qp)];
+   iwdev->allocated_mrs = >allocated_cqs[BITS_TO_LONGS(max_cq)];
+   iwdev->allocated_pds = >allocated_mrs[BITS_TO_LONGS(max_mr)];
+   iwdev->allocated_arps = >allocated_pds[BITS_TO_LONGS(num_pds)];
+   iwd

[PATCH v3 09/16] i40iw: add files for iwarp interface

[Faisal Latif]

i40iw_verbs.[ch] are to handle iwarp interface.

Changes since v2:
Made infiniband interface changes for 4.5
removed i40iw_reg_phys_mr() for 4.5
made changes as made by Christoph Hellwig made for nes
in i40iw_get_dma_mr().

Changes since v1:
Following modification based on Christoph Hellwig's feedback
 -remove kmap() calls and moved to i40iw_cm.c.
 -cleanup some of casts

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_ucontext.h |  107 ++
 drivers/infiniband/hw/i40iw/i40iw_verbs.c| 2434 ++
 drivers/infiniband/hw/i40iw/i40iw_verbs.h|  173 ++
 3 files changed, 2714 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_ucontext.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_verbs.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_verbs.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_ucontext.h 
b/drivers/infiniband/hw/i40iw/i40iw_ucontext.h
new file mode 100644
index 000..12acd68
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_ucontext.h
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2006 - 2016 Intel Corporation.  All rights reserved.
+ * Copyright (c) 2005 Topspin Communications.  All rights reserved.
+ * Copyright (c) 2005 Cisco Systems.  All rights reserved.
+ * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ *  - Redistributions of source code must retain the above
+ *copyright notice, this list of conditions and the following
+ *disclaimer.
+ *
+ *  - Redistributions in binary form must reproduce the above
+ *copyright notice, this list of conditions and the following
+ *disclaimer in the documentation and/or other materials
+ *provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#ifndef I40IW_USER_CONTEXT_H
+#define I40IW_USER_CONTEXT_H
+
+#include 
+
+#define I40IW_ABI_USERSPACE_VER 4
+#define I40IW_ABI_KERNEL_VER4
+struct i40iw_alloc_ucontext_req {
+   __u32 reserved32;
+   __u8 userspace_ver;
+   __u8 reserved8[3];
+};
+
+struct i40iw_alloc_ucontext_resp {
+   __u32 max_pds;  /* maximum pds allowed for this user process */
+   __u32 max_qps;  /* maximum qps allowed for this user process */
+   __u32 wq_size;  /* size of the WQs (sq+rq) allocated to the 
mmaped area */
+   __u8 kernel_ver;
+   __u8 reserved[3];
+};
+
+struct i40iw_alloc_pd_resp {
+   __u32 pd_id;
+   __u8 reserved[4];
+};
+
+struct i40iw_create_cq_req {
+   __u64 user_cq_buffer;
+   __u64 user_shadow_area;
+};
+
+struct i40iw_create_qp_req {
+   __u64 user_wqe_buffers;
+   __u64 user_compl_ctx;
+
+   /* UDA QP PHB */
+   __u64 user_sq_phb;  /* place for VA of the sq phb buff */
+   __u64 user_rq_phb;  /* place for VA of the rq phb buff */
+};
+
+enum i40iw_memreg_type {
+   IW_MEMREG_TYPE_MEM = 0x,
+   IW_MEMREG_TYPE_QP = 0x0001,
+   IW_MEMREG_TYPE_CQ = 0x0002,
+};
+
+struct i40iw_mem_reg_req {
+   __u16 reg_type; /* Memory, QP or CQ */
+   __u16 cq_pages;
+   __u16 rq_pages;
+   __u16 sq_pages;
+};
+
+struct i40iw_create_cq_resp {
+   __u32 cq_id;
+   __u32 cq_size;
+   __u32 mmap_db_index;
+   __u32 reserved;
+};
+
+struct i40iw_create_qp_resp {
+   __u32 qp_id;
+   __u32 actual_sq_size;
+   __u32 actual_rq_size;
+   __u32 i40iw_drv_opt;
+   __u16 push_idx;
+   __u8  lsmm;
+   __u8  rsvd2;
+};
+
+#endif
diff --git a/drivers/infiniband/hw/i40iw/i40iw_verbs.c 
b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
new file mode 100644
index 000..c5c9805
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
@@ -0,0 +1,2434 @@
+/***
+*
+* Copyright (c) 2015-

[PATCH v3 12/16] i40iw: add X722 register file

[Faisal Latif]

X722 Hardware registers defines for iWARP component.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_register.h | 1030 ++
 1 file changed, 1030 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_register.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_register.h 
b/drivers/infiniband/hw/i40iw/i40iw_register.h
new file mode 100644
index 000..5776818
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_register.h
@@ -0,0 +1,1030 @@
+/***
+*
+* Copyright (c) 2015-2016 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#ifndef I40IW_REGISTER_H
+#define I40IW_REGISTER_H
+
+#define I40E_GLGEN_STAT   0x000B612C /* Reset: POR */
+
+#define I40E_PFHMC_PDINV   0x000C0300 /* Reset: PFR */
+#define I40E_PFHMC_PDINV_PMSDIDX_SHIFT 0
+#define I40E_PFHMC_PDINV_PMSDIDX_MASK  (0xFFF <<  
I40E_PFHMC_PDINV_PMSDIDX_SHIFT)
+#define I40E_PFHMC_PDINV_PMPDIDX_SHIFT 16
+#define I40E_PFHMC_PDINV_PMPDIDX_MASK  (0x1FF <<  
I40E_PFHMC_PDINV_PMPDIDX_SHIFT)
+#define I40E_PFHMC_SDCMD_PMSDWR_SHIFT  31
+#define I40E_PFHMC_SDCMD_PMSDWR_MASK   (0x1 <<  I40E_PFHMC_SDCMD_PMSDWR_SHIFT)
+#define I40E_PFHMC_SDDATALOW_PMSDVALID_SHIFT   0
+#define I40E_PFHMC_SDDATALOW_PMSDVALID_MASK(0x1 <<  
I40E_PFHMC_SDDATALOW_PMSDVALID_SHIFT)
+#define I40E_PFHMC_SDDATALOW_PMSDTYPE_SHIFT1
+#define I40E_PFHMC_SDDATALOW_PMSDTYPE_MASK (0x1 <<  
I40E_PFHMC_SDDATALOW_PMSDTYPE_SHIFT)
+#define I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_SHIFT 2
+#define I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_MASK  (0x3FF <<  
I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_SHIFT)
+
+#define I40E_PFINT_DYN_CTLN(_INTPF) (0x00034800 + ((_INTPF) * 4)) /* 
_i=0...511 */ /* Reset: PFR */
+#define I40E_PFINT_DYN_CTLN_INTENA_SHIFT  0
+#define I40E_PFINT_DYN_CTLN_INTENA_MASK   (0x1 <<  
I40E_PFINT_DYN_CTLN_INTENA_SHIFT)
+#define I40E_PFINT_DYN_CTLN_CLEARPBA_SHIFT1
+#define I40E_PFINT_DYN_CTLN_CLEARPBA_MASK (0x1 <<  
I40E_PFINT_DYN_CTLN_CLEARPBA_SHIFT)
+#define I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT3
+#define I40E_PFINT_DYN_CTLN_ITR_INDX_MASK (0x3 <<  
I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT)
+
+#define I40E_VFINT_DYN_CTLN1(_INTVF)   (0x3800 + ((_INTVF) * 
4)) /* _i=0...15 */ /* Reset: VFR */
+#define I40E_GLHMC_VFPDINV(_i)   (0x000C8300 + ((_i) * 4)) /* 
_i=0...31 */ /* Reset: CORER */
+
+#define I40E_PFHMC_PDINV_PMSDPARTSEL_SHIFT 15
+#define I40E_PFHMC_PDINV_PMSDPARTSEL_MASK  (0x1 <<  
I40E_PFHMC_PDINV_PMSDPARTSEL_SHIFT)
+#define I40E_GLPCI_LBARCTRL0x000BE484 /* Reset: POR */
+#define I40E_GLPCI_LBARCTRL_PE_DB_SIZE_SHIFT4
+#define I40E_GLPCI_LBARCTRL_PE_DB_SIZE_MASK (0x3 <<  
I40E_GLPCI_LBARCTRL_PE_DB_SIZE_SHIFT)
+#define I40E_GLPCI_DREVID  0x0009C480 /* Reset: PCIR */
+#define I40E_GLPCI_DREVID_DEFAULT_REVID_SHIFT 0
+#define I40E_GLPCI_DREVID_DEFAULT_REVID_MASK 0xFF
+
+#define I40E_PFPE_AEQALLOC   0x00131180 /* Reset: PFR */
+#define I40E_PFPE_AEQALLOC_AECOUNT_SHIFT 0
+#define I40E_PFPE_AEQALLOC_AECOUNT_MASK  (0x <<  
I40E_PFPE_AEQALLOC_AECOUNT_SHIFT)
+#define I40E_PFPE_CCQPHIGH  0x8200 /* Reset: PFR */
+#define I40E_PFPE_CCQPHIGH_PECCQPHIGH_SHIFT 0
+#defin

[PATCH v3 10/16] i40iw: add file to handle cqp calls

[Faisal Latif]

i40iw_ctrl.c provides for hardware wqe support and cqp.

Changes since v2:
cleanup coccinelle error reported by Julia Lawall

Changes since v1:
reported by Christoph Hellwig's review
-remove unnecessary casts

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_ctrl.c | 4743 ++
 1 file changed, 4743 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_ctrl.c

diff --git a/drivers/infiniband/hw/i40iw/i40iw_ctrl.c 
b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
new file mode 100644
index 000..f05802b
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
@@ -0,0 +1,4743 @@
+/***
+*
+* Copyright (c) 2015-2016 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_osdep.h"
+#include "i40iw_register.h"
+#include "i40iw_status.h"
+#include "i40iw_hmc.h"
+
+#include "i40iw_d.h"
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+#include "i40iw_vf.h"
+#include "i40iw_virtchnl.h"
+
+/**
+ * i40iw_insert_wqe_hdr - write wqe header
+ * @wqe: cqp wqe for header
+ * @header: header for the cqp wqe
+ */
+static inline void i40iw_insert_wqe_hdr(u64 *wqe, u64 header)
+{
+   wmb();/* make sure WQE is populated before polarity is set 
*/
+   set_64bit_val(wqe, 24, header);
+}
+
+/**
+ * i40iw_get_cqp_reg_info - get head and tail for cqp using registers
+ * @cqp: struct for cqp hw
+ * @val: cqp tail register value
+ * @tail:wqtail register value
+ * @error: cqp processing err
+ */
+static inline void i40iw_get_cqp_reg_info(struct i40iw_sc_cqp *cqp,
+ u32 *val,
+ u32 *tail,
+ u32 *error)
+{
+   if (cqp->dev->is_pf) {
+   *val = i40iw_rd32(cqp->dev->hw, I40E_PFPE_CQPTAIL);
+   *tail = RS_32(*val, I40E_PFPE_CQPTAIL_WQTAIL);
+   *error = RS_32(*val, I40E_PFPE_CQPTAIL_CQP_OP_ERR);
+   } else {
+   *val = i40iw_rd32(cqp->dev->hw, I40E_VFPE_CQPTAIL1);
+   *tail = RS_32(*val, I40E_VFPE_CQPTAIL_WQTAIL);
+   *error = RS_32(*val, I40E_VFPE_CQPTAIL_CQP_OP_ERR);
+   }
+}
+
+/**
+ * i40iw_cqp_poll_registers - poll cqp registers
+ * @cqp: struct for cqp hw
+ * @tail:wqtail register value
+ * @count: how many times to try for completion
+ */
+static enum i40iw_status_code i40iw_cqp_poll_registers(
+   struct i40iw_sc_cqp *cqp,
+   u32 tail,
+   u32 count)
+{
+   u32 i = 0;
+   u32 newtail, error, val;
+
+   while (i < count) {
+   i++;
+   i40iw_get_cqp_reg_info(cqp, , , );
+   if (error) {
+   error = (cqp->dev->is_pf) ?
+i40iw_rd32(cqp->dev->hw, 
I40E_PFPE_CQPERRCODES) :
+i40iw_rd32(cqp->dev->hw, 
I40E_VFPE_CQPERRCODES1);
+   return I40IW_ERR_CQP_COMPL_ERROR;
+   }
+   if (newtail != tail) {
+   /* SUCCESS */
+ 

[PATCH v3 16/16] i40iw: changes for build of i40iw module

[Faisal Latif]

MAINTAINERS, Kconfig, and Makefile to build i40iw module

Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 MAINTAINERS| 10 ++
 drivers/infiniband/Kconfig |  1 +
 drivers/infiniband/hw/Makefile |  1 +
 3 files changed, 12 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 978526c..480e0a2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5601,6 +5601,16 @@ F:   Documentation/networking/i40evf.txt
 F: drivers/net/ethernet/intel/
 F: drivers/net/ethernet/intel/*/
 
+INTEL RDMA RNIC DRIVER
+M: Faisal Latif <faisal.la...@intel.com>
+R: Chien Tin Tung <chien.tin.t...@intel.com>
+R: Mustafa Ismail <mustafa.ism...@intel.com>
+R: Shiraz Saleem <shiraz.sal...@intel.com>
+R: Tatyana Nikolova <tatyana.e.nikol...@intel.com>
+L: linux-r...@vger.kernel.org
+S: Supported
+F: drivers/infiniband/hw/i40iw/
+
 INTEL-MID GPIO DRIVER
 M: David Cohen <david.a.co...@linux.intel.com>
 L: linux-g...@vger.kernel.org
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
index 8a8440c..0434760 100644
--- a/drivers/infiniband/Kconfig
+++ b/drivers/infiniband/Kconfig
@@ -68,6 +68,7 @@ source "drivers/infiniband/hw/mthca/Kconfig"
 source "drivers/infiniband/hw/qib/Kconfig"
 source "drivers/infiniband/hw/cxgb3/Kconfig"
 source "drivers/infiniband/hw/cxgb4/Kconfig"
+source "drivers/infiniband/hw/i40iw/Kconfig"
 source "drivers/infiniband/hw/mlx4/Kconfig"
 source "drivers/infiniband/hw/mlx5/Kconfig"
 source "drivers/infiniband/hw/nes/Kconfig"
diff --git a/drivers/infiniband/hw/Makefile b/drivers/infiniband/hw/Makefile
index aded2a5..c7ad0a4 100644
--- a/drivers/infiniband/hw/Makefile
+++ b/drivers/infiniband/hw/Makefile
@@ -2,6 +2,7 @@ obj-$(CONFIG_INFINIBAND_MTHCA)  += mthca/
 obj-$(CONFIG_INFINIBAND_QIB)   += qib/
 obj-$(CONFIG_INFINIBAND_CXGB3) += cxgb3/
 obj-$(CONFIG_INFINIBAND_CXGB4) += cxgb4/
+obj-$(CONFIG_INFINIBAND_I40IW) += i40iw/
 obj-$(CONFIG_MLX4_INFINIBAND)  += mlx4/
 obj-$(CONFIG_MLX5_INFINIBAND)  += mlx5/
 obj-$(CONFIG_INFINIBAND_NES)   += nes/
-- 
2.5.3

[PATCH v3 05/16] i40iw: add puda code

[Faisal Latif]

i40iw_puda.[ch] are files to handle iwarp connection packets as
well as exception packets over multiple privilege mode uda queues.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_puda.c | 1436 ++
 drivers/infiniband/hw/i40iw/i40iw_puda.h |  183 
 2 files changed, 1619 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_puda.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_puda.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_puda.c 
b/drivers/infiniband/hw/i40iw/i40iw_puda.c
new file mode 100644
index 000..ae9971f
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_puda.c
@@ -0,0 +1,1436 @@
+/***
+*
+* Copyright (c) 2015-2016 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_osdep.h"
+#include "i40iw_register.h"
+#include "i40iw_status.h"
+#include "i40iw_hmc.h"
+
+#include "i40iw_d.h"
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+#include "i40iw_puda.h"
+
+static void i40iw_ieq_receive(struct i40iw_sc_dev *dev,
+ struct i40iw_puda_buf *buf);
+static void i40iw_ieq_tx_compl(struct i40iw_sc_dev *dev, void *sqwrid);
+static void i40iw_ilq_putback_rcvbuf(struct i40iw_sc_qp *qp, u32 wqe_idx);
+static enum i40iw_status_code i40iw_puda_replenish_rq(struct i40iw_puda_rsrc
+ *rsrc, bool initial);
+/**
+ * i40iw_puda_get_listbuf - get buffer from puda list
+ * @list: list to use for buffers (ILQ or IEQ)
+ */
+static struct i40iw_puda_buf *i40iw_puda_get_listbuf(struct list_head *list)
+{
+   struct i40iw_puda_buf *buf = NULL;
+
+   if (!list_empty(list)) {
+   buf = (struct i40iw_puda_buf *)list->next;
+   list_del((struct list_head *)>list);
+   }
+   return buf;
+}
+
+/**
+ * i40iw_puda_get_bufpool - return buffer from resource
+ * @rsrc: resource to use for buffer
+ */
+struct i40iw_puda_buf *i40iw_puda_get_bufpool(struct i40iw_puda_rsrc *rsrc)
+{
+   struct i40iw_puda_buf *buf = NULL;
+   struct list_head *list = >bufpool;
+   unsigned long   flags;
+
+   spin_lock_irqsave(>bufpool_lock, flags);
+   buf = i40iw_puda_get_listbuf(list);
+   if (buf)
+   rsrc->avail_buf_count--;
+   else
+   rsrc->stats_buf_alloc_fail++;
+   spin_unlock_irqrestore(>bufpool_lock, flags);
+   return buf;
+}
+
+/**
+ * i40iw_puda_ret_bufpool - return buffer to rsrc list
+ * @rsrc: resource to use for buffer
+ * @buf: buffe to return to resouce
+ */
+void i40iw_puda_ret_bufpool(struct i40iw_puda_rsrc *rsrc,
+   struct i40iw_puda_buf *buf)
+{
+   unsigned long   flags;
+
+   spin_lock_irqsave(>bufpool_lock, flags);
+   list_add(>list, >bufpool);
+   spin_unlock_irqrestore(>bufpool_lock, flags);
+   rsrc->avail_buf_count++;
+}
+
+/**
+ * i40iw_puda_post_recvbuf - set wqe for rcv buffer
+ * @rsrc: resource ptr
+ * @wqe_idx: wqe index to use
+ * @buf: puda buffer for rcv q
+ * @initial: flag if during init time
+ */
+static void i40iw_puda_post_recvbuf(struct i40iw_puda_rsrc *rsrc, u32 wqe_idx,
+   struct i40iw_puda_buf *buf, bool initial)

[PATCH v3 03/16] i40iw: add main, hdr, status

[Faisal Latif]

i40iw_main.c contains routines for i40e <=> i40iw interface and setup.
i40iw.h is header file for main device data structures.
i40iw_status.h is for return status codes.

Changes from v2:
more cast improvement
fixed timing issue during unload
added paramater change call from i40e

Changes from v1:
improved casting issues
do not print error using pr_err
change from bits to bool in i40iw_cqp_request{}

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw.h|  569 
 drivers/infiniband/hw/i40iw/i40iw_main.c   | 1930 
 drivers/infiniband/hw/i40iw/i40iw_status.h |  100 ++
 3 files changed, 2599 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_main.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_status.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw.h 
b/drivers/infiniband/hw/i40iw/i40iw.h
new file mode 100644
index 000..19f6651
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw.h
@@ -0,0 +1,569 @@
+/***
+*
+* Copyright (c) 2015-2016 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#ifndef I40IW_IW_H
+#define I40IW_IW_H
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+#include "i40iw_status.h"
+#include "i40iw_osdep.h"
+#include "i40iw_d.h"
+#include "i40iw_hmc.h"
+
+#include 
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+#include "i40iw_ucontext.h"
+#include "i40iw_pble.h"
+#include "i40iw_verbs.h"
+#include "i40iw_cm.h"
+#include "i40iw_user.h"
+#include "i40iw_puda.h"
+
+#define I40IW_FW_VERSION  2
+#define I40IW_HW_VERSION  2
+
+#define I40IW_ARP_ADD 1
+#define I40IW_ARP_DELETE  2
+#define I40IW_ARP_RESOLVE 3
+
+#define I40IW_MACIP_ADD 1
+#define I40IW_MACIP_DELETE  2
+
+#define IW_CCQ_SIZE (I40IW_CQP_SW_SQSIZE_2048 + 1)
+#define IW_CEQ_SIZE 2048
+#define IW_AEQ_SIZE 2048
+
+#define RX_BUF_SIZE(1536 + 8)
+#define IW_REG0_SIZE   (4 * 1024)
+#define IW_TX_TIMEOUT  (6 * HZ)
+#define IW_FIRST_QPN   1
+#define IW_SW_CONTEXT_ALIGN1024
+
+#define MAX_DPC_ITERATIONS 128
+
+#define I40IW_EVENT_TIMEOUT10
+#define I40IW_VCHNL_EVENT_TIMEOUT  10
+
+#defineI40IW_NO_VLAN   0x
+#defineI40IW_NO_QSET   0x
+
+/* access to mcast filter list */
+#define IW_ADD_MCAST false
+#define IW_DEL_MCAST true
+
+#define I40IW_DRV_OPT_ENABLE_MPA_VER_0 0x0001
+#define I40IW_DRV_OPT_DISABLE_MPA_CRC  0x0002
+#define I40IW_DRV_OPT_DISABLE_FIRST_WRITE  0x0004
+#define I40IW_DRV_OPT_DISABLE_INTF 0x0008
+#define I40IW_DRV_OPT_ENABLE_MSI   0x0010
+#define I40IW_DRV_OPT_DUAL_LOGICAL_PORT0x0020
+#define I40IW_DRV_OPT_NO_INLINE_DATA   0x0080
+#define I40IW_DRV_OPT_DISABLE_INT_MOD  0x0100
+#define I40IW_DRV_OPT_DISABLE_VIRT_WQ  0x0200
+#define I40IW_DRV_OPT_ENABLE_PAU   0x0400
+#define I40IW_DR

[PATCH v3 15/16] i40iw: Kconfig and Makefile for iwarp module

[Faisal Latif]

Kconfig and Makefile needed to build iwarp module.

Changes since v2:
moved from Kbuild to Makefile

Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/Kconfig  | 7 +++
 drivers/infiniband/hw/i40iw/Makefile | 9 +
 2 files changed, 16 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/Kconfig
 create mode 100644 drivers/infiniband/hw/i40iw/Makefile

diff --git a/drivers/infiniband/hw/i40iw/Kconfig 
b/drivers/infiniband/hw/i40iw/Kconfig
new file mode 100644
index 000..6e7d27a
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/Kconfig
@@ -0,0 +1,7 @@
+config INFINIBAND_I40IW
+   tristate "Intel(R) Ethernet X722 iWARP Driver"
+   depends on INET && I40E
+   select GENERIC_ALLOCATOR
+   ---help---
+   Intel(R) Ethernet X722 iWARP Driver
+   INET && I40IW && INFINIBAND && I40E
diff --git a/drivers/infiniband/hw/i40iw/Makefile 
b/drivers/infiniband/hw/i40iw/Makefile
new file mode 100644
index 000..90068c0
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/Makefile
@@ -0,0 +1,9 @@
+ccflags-y :=  -Idrivers/net/ethernet/intel/i40e
+
+obj-$(CONFIG_INFINIBAND_I40IW) += i40iw.o
+
+i40iw-objs :=\
+   i40iw_cm.o i40iw_ctrl.o \
+   i40iw_hmc.o i40iw_hw.o i40iw_main.o  \
+   i40iw_pble.o i40iw_puda.o i40iw_uk.o i40iw_utils.o \
+   i40iw_verbs.o i40iw_virtchnl.o i40iw_vf.o
-- 
2.5.3

[PATCH v3 07/16] i40iw: add hmc resource files

[Faisal Latif]

i40iw_hmc.[ch] are to manage hmc for the device.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_hmc.c | 821 
 drivers/infiniband/hw/i40iw/i40iw_hmc.h | 241 ++
 2 files changed, 1062 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_hmc.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_hmc.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_hmc.c 
b/drivers/infiniband/hw/i40iw/i40iw_hmc.c
new file mode 100644
index 000..5484cbf
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_hmc.c
@@ -0,0 +1,821 @@
+/***
+*
+* Copyright (c) 2015-2016 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_osdep.h"
+#include "i40iw_register.h"
+#include "i40iw_status.h"
+#include "i40iw_hmc.h"
+#include "i40iw_d.h"
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+#include "i40iw_vf.h"
+#include "i40iw_virtchnl.h"
+
+/**
+ * i40iw_find_sd_index_limit - finds segment descriptor index limit
+ * @hmc_info: pointer to the HMC configuration information structure
+ * @type: type of HMC resources we're searching
+ * @index: starting index for the object
+ * @cnt: number of objects we're trying to create
+ * @sd_idx: pointer to return index of the segment descriptor in question
+ * @sd_limit: pointer to return the maximum number of segment descriptors
+ *
+ * This function calculates the segment descriptor index and index limit
+ * for the resource defined by i40iw_hmc_rsrc_type.
+ */
+
+static inline void i40iw_find_sd_index_limit(struct i40iw_hmc_info *hmc_info,
+u32 type,
+u32 idx,
+u32 cnt,
+u32 *sd_idx,
+u32 *sd_limit)
+{
+   u64 fpm_addr, fpm_limit;
+
+   fpm_addr = hmc_info->hmc_obj[(type)].base +
+   hmc_info->hmc_obj[type].size * idx;
+   fpm_limit = fpm_addr + hmc_info->hmc_obj[type].size * cnt;
+   *sd_idx = (u32)(fpm_addr / I40IW_HMC_DIRECT_BP_SIZE);
+   *sd_limit = (u32)((fpm_limit - 1) / I40IW_HMC_DIRECT_BP_SIZE);
+   *sd_limit += 1;
+}
+
+/**
+ * i40iw_find_pd_index_limit - finds page descriptor index limit
+ * @hmc_info: pointer to the HMC configuration information struct
+ * @type: HMC resource type we're examining
+ * @idx: starting index for the object
+ * @cnt: number of objects we're trying to create
+ * @pd_index: pointer to return page descriptor index
+ * @pd_limit: pointer to return page descriptor index limit
+ *
+ * Calculates the page descriptor index and index limit for the resource
+ * defined by i40iw_hmc_rsrc_type.
+ */
+
+static inline void i40iw_find_pd_index_limit(struct i40iw_hmc_info *hmc_info,
+u32 type,
+u32 idx,
+u32 cnt,
+u32 *pd_idx,
+u32 *pd_limit)
+{
+   u64 fpm_adr, fpm_limit;
+
+   fpm_adr = hmc_info->hmc_obj[type].base +
+   hmc_info-&g

[PATCH v3 06/16] i40iw: add pble resource files

[Faisal Latif]

i40iw_pble.[ch] to manage pble resource for iwarp clients.

Changes since v2:
remove unnecessary casts

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_pble.c | 618 +++
 drivers/infiniband/hw/i40iw/i40iw_pble.h | 131 +++
 2 files changed, 749 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_pble.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_pble.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_pble.c 
b/drivers/infiniband/hw/i40iw/i40iw_pble.c
new file mode 100644
index 000..ded853d
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_pble.c
@@ -0,0 +1,618 @@
+/***
+*
+* Copyright (c) 2015-2016 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_status.h"
+#include "i40iw_osdep.h"
+#include "i40iw_register.h"
+#include "i40iw_hmc.h"
+
+#include "i40iw_d.h"
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+
+#include 
+#include 
+#include 
+#include "i40iw_pble.h"
+#include "i40iw.h"
+
+struct i40iw_device;
+static enum i40iw_status_code add_pble_pool(struct i40iw_sc_dev *dev,
+   struct i40iw_hmc_pble_rsrc 
*pble_rsrc);
+static void i40iw_free_vmalloc_mem(struct i40iw_hw *hw, struct i40iw_chunk 
*chunk);
+
+/**
+ * i40iw_destroy_pble_pool - destroy pool during module unload
+ * @pble_rsrc: pble resources
+ */
+void i40iw_destroy_pble_pool(struct i40iw_sc_dev *dev, struct 
i40iw_hmc_pble_rsrc *pble_rsrc)
+{
+   struct list_head *clist;
+   struct list_head *tlist;
+   struct i40iw_chunk *chunk;
+   struct i40iw_pble_pool *pinfo = _rsrc->pinfo;
+
+   if (pinfo->pool) {
+   list_for_each_safe(clist, tlist, >clist) {
+   chunk = list_entry(clist, struct i40iw_chunk, list);
+   if (chunk->type == I40IW_VMALLOC)
+   i40iw_free_vmalloc_mem(dev->hw, chunk);
+   kfree(chunk);
+   }
+   gen_pool_destroy(pinfo->pool);
+   }
+}
+
+/**
+ * i40iw_hmc_init_pble - Initialize pble resources during module load
+ * @dev: i40iw_sc_dev struct
+ * @pble_rsrc: pble resources
+ */
+enum i40iw_status_code i40iw_hmc_init_pble(struct i40iw_sc_dev *dev,
+  struct i40iw_hmc_pble_rsrc 
*pble_rsrc)
+{
+   struct i40iw_hmc_info *hmc_info;
+   u32 fpm_idx = 0;
+
+   hmc_info = dev->hmc_info;
+   pble_rsrc->fpm_base_addr = hmc_info->hmc_obj[I40IW_HMC_IW_PBLE].base;
+   /* Now start the pble' on 4k boundary */
+   if (pble_rsrc->fpm_base_addr & 0xfff)
+   fpm_idx = (PAGE_SIZE - (pble_rsrc->fpm_base_addr & 0xfff)) >> 3;
+
+   pble_rsrc->unallocated_pble =
+   hmc_info->hmc_obj[I40IW_HMC_IW_PBLE].cnt - fpm_idx;
+   pble_rsrc->next_fpm_addr = pble_rsrc->fpm_base_addr + (fpm_idx << 3);
+
+   pble_rsrc->pinfo.pool_shift = POOL_SHIFT;
+   pble_rsrc->pinfo.pool = gen_pool_create(pble_rsrc->pinfo.pool_shift, 
-1);
+   INIT_LIST_HEAD(_rsrc->pinfo.clist);
+   if (!pble_rsrc->pinfo.pool)
+   goto error;
+
+   if (add_pble_pool(dev, pble_r

[PATCH v3 11/16] i40iw: add hardware related header files

[Faisal Latif]

header files for hardware accesses

Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_d.h| 1713 ++
 drivers/infiniband/hw/i40iw/i40iw_p.h|  106 ++
 drivers/infiniband/hw/i40iw/i40iw_type.h | 1312 +++
 3 files changed, 3131 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_d.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_p.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_type.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_d.h 
b/drivers/infiniband/hw/i40iw/i40iw_d.h
new file mode 100644
index 000..aab88d6
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_d.h
@@ -0,0 +1,1713 @@
+/***
+*
+* Copyright (c) 2015-2016 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#ifndef I40IW_D_H
+#define I40IW_D_H
+
+#define I40IW_DB_ADDR_OFFSET(4 * 1024 * 1024 - 64 * 1024)
+#define I40IW_VF_DB_ADDR_OFFSET (64 * 1024)
+
+#define I40IW_PUSH_OFFSET   (4 * 1024 * 1024)
+#define I40IW_PF_FIRST_PUSH_PAGE_INDEX 16
+#define I40IW_VF_PUSH_OFFSET((8 + 64) * 1024)
+#define I40IW_VF_FIRST_PUSH_PAGE_INDEX 2
+
+#define I40IW_PE_DB_SIZE_4M 1
+#define I40IW_PE_DB_SIZE_8M 2
+
+#define I40IW_DDP_VER 1
+#define I40IW_RDMAP_VER 1
+
+#define I40IW_RDMA_MODE_RDMAC 0
+#define I40IW_RDMA_MODE_IETF  1
+
+#define I40IW_QP_STATE_INVALID 0
+#define I40IW_QP_STATE_IDLE 1
+#define I40IW_QP_STATE_RTS 2
+#define I40IW_QP_STATE_CLOSING 3
+#define I40IW_QP_STATE_RESERVED 4
+#define I40IW_QP_STATE_TERMINATE 5
+#define I40IW_QP_STATE_ERROR 6
+
+#define I40IW_STAG_STATE_INVALID 0
+#define I40IW_STAG_STATE_VALID 1
+
+#define I40IW_STAG_TYPE_SHARED 0
+#define I40IW_STAG_TYPE_NONSHARED 1
+
+#define I40IW_MAX_USER_PRIORITY 8
+
+#define LS_64_1(val, bits)  ((u64)(uintptr_t)val << bits)
+#define RS_64_1(val, bits)  ((u64)(uintptr_t)val >> bits)
+#define LS_32_1(val, bits)  (u32)(val << bits)
+#define RS_32_1(val, bits)  (u32)(val >> bits)
+#define I40E_HI_DWORD(x)((u32)x) >> 16) >> 16) & 0x))
+
+#define LS_64(val, field) (((u64)val << field ## _SHIFT) & (field ## _MASK))
+
+#define RS_64(val, field) ((u64)(val & field ## _MASK) >> field ## _SHIFT)
+#define LS_32(val, field) ((val << field ## _SHIFT) & (field ## _MASK))
+#define RS_32(val, field) ((val & field ## _MASK) >> field ## _SHIFT)
+
+#define TERM_DDP_LEN_TAGGED 14
+#define TERM_DDP_LEN_UNTAGGED   18
+#define TERM_RDMA_LEN   28
+#define RDMA_OPCODE_MASK0x0f
+#define RDMA_READ_REQ_OPCODE1
+#define Q2_BAD_FRAME_OFFSET 72
+#define CQE_MAJOR_DRV   0x8000
+
+#define I40IW_TERM_SENT 0x01
+#define I40IW_TERM_RCVD 0x02
+#define I40IW_TERM_DONE 0x04
+#define I40IW_MAC_HLEN  14
+
+#define I40IW_INVALID_WQE_INDEX 0x
+
+#define I40IW_CQP_WAIT_POLL_REGS 1
+#define I40IW_CQP_WAIT_POLL_CQ 2
+#define I40IW_CQP_WAIT_EVENT 3
+
+#define I40IW_CQP_INIT_WQE(wqe) memset(wqe, 0, 64)
+
+#define I40IW_GET_CURRENT_CQ_ELEMENT(_cq) \
+   ( \
+   &((_cq)->cq_base[I40IW_RING_GETCURRENT_HEAD((_cq)->cq_ring)])  \
+   )
+#define I40IW_GET_CURRENT_EXTENDED_CQ_ELEMENT(_cq) \
+   ( \
+   &(((struct i40iw_extended_cqe *)\
+  
((_cq)->cq_base))[I40IW_RING_GETCURRENT_HEAD((_cq)->cq_ring)]) \
+   )
+
+#define I40IW_GET_CURRENT_AEQ_ELEMENT(_aeq)

[PATCH v3 13/16] i40iw: user kernel shared files

[Faisal Latif]

i40iw_user.h and i40iw_uk.c are used by both user library as well as
kernel requests.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_uk.c   | 1204 ++
 drivers/infiniband/hw/i40iw/i40iw_user.h |  442 +++
 2 files changed, 1646 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_uk.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_user.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_uk.c 
b/drivers/infiniband/hw/i40iw/i40iw_uk.c
new file mode 100644
index 000..f78c3dc
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_uk.c
@@ -0,0 +1,1204 @@
+/***
+*
+* Copyright (c) 2015-2016 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_osdep.h"
+#include "i40iw_status.h"
+#include "i40iw_d.h"
+#include "i40iw_user.h"
+#include "i40iw_register.h"
+
+static u32 nop_signature = 0x;
+
+/**
+ * i40iw_nop_1 - insert a nop wqe and move head. no post work
+ * @qp: hw qp ptr
+ */
+static enum i40iw_status_code i40iw_nop_1(struct i40iw_qp_uk *qp)
+{
+   u64 header, *wqe;
+   u64 *wqe_0 = NULL;
+   u32 wqe_idx, peek_head;
+   bool signaled = false;
+
+   if (!qp->sq_ring.head)
+   return I40IW_ERR_PARAM;
+
+   wqe_idx = I40IW_RING_GETCURRENT_HEAD(qp->sq_ring);
+   wqe = qp->sq_base[wqe_idx].elem;
+   peek_head = (qp->sq_ring.head + 1) % qp->sq_ring.size;
+   wqe_0 = qp->sq_base[peek_head].elem;
+   if (peek_head)
+   wqe_0[3] = LS_64(!qp->swqe_polarity, I40IWQPSQ_VALID);
+   else
+   wqe_0[3] = LS_64(qp->swqe_polarity, I40IWQPSQ_VALID);
+
+   set_64bit_val(wqe, 0, 0);
+   set_64bit_val(wqe, 8, 0);
+   set_64bit_val(wqe, 16, 0);
+
+   header = LS_64(I40IWQP_OP_NOP, I40IWQPSQ_OPCODE) |
+   LS_64(signaled, I40IWQPSQ_SIGCOMPL) |
+   LS_64(qp->swqe_polarity, I40IWQPSQ_VALID) | nop_signature++;
+
+   wmb();  /* Memory barrier to ensure data is written before valid bit is 
set */
+
+   set_64bit_val(wqe, 24, header);
+   return 0;
+}
+
+/**
+ * i40iw_qp_post_wr - post wr to hrdware
+ * @qp: hw qp ptr
+ */
+void i40iw_qp_post_wr(struct i40iw_qp_uk *qp)
+{
+   u64 temp;
+   u32 hw_sq_tail;
+   u32 sw_sq_head;
+
+   mb(); /* valid bit is written and loads completed before reading shadow 
*/
+
+   /* read the doorbell shadow area */
+   get_64bit_val(qp->shadow_area, 0, );
+
+   hw_sq_tail = (u32)RS_64(temp, I40IW_QP_DBSA_HW_SQ_TAIL);
+   sw_sq_head = I40IW_RING_GETCURRENT_HEAD(qp->sq_ring);
+   if (sw_sq_head != hw_sq_tail) {
+   if (sw_sq_head > qp->initial_ring.head) {
+   if ((hw_sq_tail >= qp->initial_ring.head) &&
+   (hw_sq_tail < sw_sq_head)) {
+   writel(qp->qp_id, qp->wqe_alloc_reg);
+   }
+   } else if (sw_sq_head != qp->initial_ring.head) {
+   if ((hw_sq_tail >= qp->initial_ring.head) ||
+   (hw_sq_tail < sw_sq_head)) {
+   writel(qp->qp_id, qp->wqe_alloc_reg);
+   }
+   }
+ 

[PATCH v3 02/16] i40iw: add entry in rdma_netlink

[Faisal Latif]

Add entry for port mapper services.

Changes since v2:
moved this patch before being used

Changes since v1:
moved I40IW as last element

Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 include/uapi/rdma/rdma_netlink.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h
index c19a5dc..4fa418d 100644
--- a/include/uapi/rdma/rdma_netlink.h
+++ b/include/uapi/rdma/rdma_netlink.h
@@ -8,6 +8,7 @@ enum {
RDMA_NL_NES,
RDMA_NL_C4IW,
RDMA_NL_LS, /* RDMA Local Services */
+   RDMA_NL_I40IW,
RDMA_NL_NUM_CLIENTS
 };
 
-- 
2.5.3

[PATCH v3 01/16] i40e: Add support for client interface for IWARP driver

[Faisal Latif]

From: Anjali Singhai Jain 

This patch adds a Client interface for i40iw driver
support. Also expands the Virtchannel to support messages
from i40evf driver on behalf of i40iwvf driver.

This client API is used by the i40iw and i40iwvf driver
to access the core driver resources brokered by the i40e driver.

Signed-off-by: Anjali Singhai Jain 
---
 drivers/net/ethernet/intel/i40e/Makefile   |1 +
 drivers/net/ethernet/intel/i40e/i40e.h |   22 +
 drivers/net/ethernet/intel/i40e/i40e_client.c  | 1012 
 drivers/net/ethernet/intel/i40e/i40e_client.h  |  232 +
 drivers/net/ethernet/intel/i40e/i40e_main.c|  115 ++-
 drivers/net/ethernet/intel/i40e/i40e_type.h|3 +-
 drivers/net/ethernet/intel/i40e/i40e_virtchnl.h|   34 +
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c |  247 -
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h |4 +
 9 files changed, 1657 insertions(+), 13 deletions(-)
 create mode 100644 drivers/net/ethernet/intel/i40e/i40e_client.c
 create mode 100644 drivers/net/ethernet/intel/i40e/i40e_client.h

diff --git a/drivers/net/ethernet/intel/i40e/Makefile 
b/drivers/net/ethernet/intel/i40e/Makefile
index b4729ba..3b3c63e 100644
--- a/drivers/net/ethernet/intel/i40e/Makefile
+++ b/drivers/net/ethernet/intel/i40e/Makefile
@@ -41,6 +41,7 @@ i40e-objs := i40e_main.o \
i40e_diag.o \
i40e_txrx.o \
i40e_ptp.o  \
+   i40e_client.o   \
i40e_virtchnl_pf.o
 
 i40e-$(CONFIG_I40E_DCB) += i40e_dcb.o i40e_dcb_nl.o
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h 
b/drivers/net/ethernet/intel/i40e/i40e.h
index 4dd3e26..1417ae8 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -59,6 +59,7 @@
 #ifdef I40E_FCOE
 #include "i40e_fcoe.h"
 #endif
+#include "i40e_client.h"
 #include "i40e_virtchnl.h"
 #include "i40e_virtchnl_pf.h"
 #include "i40e_txrx.h"
@@ -178,6 +179,7 @@ struct i40e_lump_tracking {
u16 search_hint;
u16 list[0];
 #define I40E_PILE_VALID_BIT  0x8000
+#define I40E_IWARP_IRQ_PILE_ID  (I40E_PILE_VALID_BIT - 2)
 };
 
 #define I40E_DEFAULT_ATR_SAMPLE_RATE   20
@@ -264,6 +266,8 @@ struct i40e_pf {
 #endif /* I40E_FCOE */
u16 num_lan_qps;   /* num lan queues this PF has set up */
u16 num_lan_msix;  /* num queue vectors for the base PF vsi */
+   u16 num_iwarp_msix;/* num of iwarp vectors for this PF */
+   int iwarp_base_vector;
int queues_left;   /* queues left unclaimed */
u16 rss_size;  /* num queues in the RSS array */
u16 rss_size_max;  /* HW defined max RSS queues */
@@ -313,6 +317,7 @@ struct i40e_pf {
 #define I40E_FLAG_16BYTE_RX_DESC_ENABLED   BIT_ULL(13)
 #define I40E_FLAG_CLEAN_ADMINQ BIT_ULL(14)
 #define I40E_FLAG_FILTER_SYNC  BIT_ULL(15)
+#define I40E_FLAG_SERVICE_CLIENT_REQUESTED BIT_ULL(16)
 #define I40E_FLAG_PROCESS_MDD_EVENTBIT_ULL(17)
 #define I40E_FLAG_PROCESS_VFLR_EVENT   BIT_ULL(18)
 #define I40E_FLAG_SRIOV_ENABLEDBIT_ULL(19)
@@ -550,6 +555,8 @@ struct i40e_vsi {
struct kobject *kobj;  /* sysfs object */
bool current_isup; /* Sync 'link up' logging */
 
+   void *priv; /* client driver data reference. */
+
/* VSI specific handlers */
irqreturn_t (*irq_handler)(int irq, void *data);
 
@@ -702,6 +709,10 @@ void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
  struct i40e_vsi_context *ctxt,
  u8 enabled_tc, bool is_add);
 #endif
+void i40e_service_event_schedule(struct i40e_pf *pf);
+void i40e_notify_client_of_vf_msg(struct i40e_vsi *vsi, u32 vf_id,
+ u8 *msg, u16 len);
+
 int i40e_vsi_control_rings(struct i40e_vsi *vsi, bool enable);
 int i40e_reconfig_rss_queues(struct i40e_pf *pf, int queue_count);
 struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags, u16 uplink_seid,
@@ -724,6 +735,17 @@ static inline void i40e_dbg_pf_exit(struct i40e_pf *pf) {}
 static inline void i40e_dbg_init(void) {}
 static inline void i40e_dbg_exit(void) {}
 #endif /* CONFIG_DEBUG_FS*/
+/* needed by client drivers */
+int i40e_lan_add_device(struct i40e_pf *pf);
+int i40e_lan_del_device(struct i40e_pf *pf);
+void i40e_client_subtask(struct i40e_pf *pf);
+void i40e_notify_client_of_l2_param_changes(struct i40e_vsi *vsi);
+void i40e_notify_client_of_netdev_open(struct i40e_vsi *vsi);
+void i40e_notify_client_of_netdev_close(struct i40e_vsi *vsi, bool reset);
+void i40e_notify_client_of_vf_enable(struct i40e_pf *pf, u32 num_vfs);
+void i40e_notify_client_of_vf_reset(struct i40e_pf *pf, u32 vf_id);
+int i40e_vf_client_capable(struct i40e_pf *pf, u32 vf_id,
+  enum i40e_client_type type);
 /**
  * i40e_irq_dynamic_enable - 

[PATCH v3 00/16] add Intel X722 iWARP driver

[Faisal Latif]

This driver provides iWARP RDMA functionality for the Intel(R) X722 Ethernet
controller for PCI Physical Functions. It is in early product cycle
and having the driver in the kernel will allow users to have hardware support
when available for purchase.


i40iw cooperates with the Intel(R) X722 base driver (i40e.ko) to allocate
resources and program the controller.

It has support for Virtual Function driver (i40iwvf.ko), which will
be part of separate patch series. The VF driver (i40iwvf) requires i40iw 
for resource management.


This series include 1 patch to i40e.ko to provide interface support to
i40iw.ko. The interface provides a driver registration mechanism, resource
allocations, and device reset coordination mechanisms.


This patch series is based on Doug Ledford's k.o/for-4.5.

Changes since v2:

Incorporated following comments from Or Gerlitz
*full git cover letter 
*0-day testing complete
*remove unused memtypes
*move netlink patch up

Changes made as part of 4.5 merge
*ported interface changes done for infiniband interface for 4.5
*some changes made by Christoph Hellwig in nes were also
 ported to i40iw

copyright changed to 2015-2016
moved from Kbuild to Makefile
Added i40e param change
fixes including crash during unload


Changes since v1:

Following review comments from Joe Perches are implemented.
*No need to print error for i40e_print errpr )
*Change from bits in cqp to bool in i40iw_cqp_request()

Following review comments from Christoph Hellwig are implemented.
*move down the I40IW enum
*remove pointless braces (all over the code)
*change usage of kmap() to make it short lived.
*remove unnecessary casts
*remove routine stubs
*do not set unused fields to zero as those are already zero

Anjali Singhai Jain (1):
  i40e: Add support for client interface for IWARP driver

Faisal Latif (15):
  i40iw: add entry in rdma_netlink
  i40iw: add main, hdr, status
  i40iw: add connection management code
  i40iw: add puda code
  i40iw: add pble resource files
  i40iw: add hmc resource files
  i40iw: add hw and utils files
  i40iw: add files for iwarp interface
  i40iw: add file to handle cqp calls
  i40iw: add hardware related header files
  i40iw: add X722 register file
  i40iw: user kernel shared files
  i40iw: virtual channel handling files
  i40iw: Kconfig and Makefile for iwarp module
  i40iw: changes for build of i40iw module

 MAINTAINERS|   10 +
 drivers/infiniband/Kconfig |1 +
 drivers/infiniband/hw/Makefile |1 +
 drivers/infiniband/hw/i40iw/Kconfig|7 +
 drivers/infiniband/hw/i40iw/Makefile   |9 +
 drivers/infiniband/hw/i40iw/i40iw.h|  569 +++
 drivers/infiniband/hw/i40iw/i40iw_cm.c | 4442 ++
 drivers/infiniband/hw/i40iw/i40iw_cm.h |  456 ++
 drivers/infiniband/hw/i40iw/i40iw_ctrl.c   | 4743 
 drivers/infiniband/hw/i40iw/i40iw_d.h  | 1713 +++
 drivers/infiniband/hw/i40iw/i40iw_hmc.c|  821 
 drivers/infiniband/hw/i40iw/i40iw_hmc.h|  241 +
 drivers/infiniband/hw/i40iw/i40iw_hw.c |  730 +++
 drivers/infiniband/hw/i40iw/i40iw_main.c   | 1930 
 drivers/infiniband/hw/i40iw/i40iw_osdep.h  |  214 +
 drivers/infiniband/hw/i40iw/i40iw_p.h  |  106 +
 drivers/infiniband/hw/i40iw/i40iw_pble.c   |  618 +++
 drivers/infiniband/hw/i40iw/i40iw_pble.h   |  131 +
 drivers/infiniband/hw/i40iw/i40iw_puda.c   | 1436 ++
 drivers/infiniband/hw/i40iw/i40iw_puda.h   |  183 +
 drivers/infiniband/hw/i40iw/i40iw_register.h   | 1030 +
 drivers/infiniband/hw/i40iw/i40iw_status.h |  100 +
 drivers/infiniband/hw/i40iw/i40iw_type.h   | 1312 ++
 drivers/infiniband/hw/i40iw/i40iw_ucontext.h   |  107 +
 drivers/infiniband/hw/i40iw/i40iw_uk.c | 1204 +
 drivers/infiniband/hw/i40iw/i40iw_user.h   |  442 ++
 drivers/infiniband/hw/i40iw/i40iw_utils.c  | 1256 ++
 drivers/infiniband/hw/i40iw/i40iw_verbs.c  | 2434 ++
 drivers/infiniband/hw/i40iw/i40iw_verbs.h  |  173 +
 drivers/infiniband/hw/i40iw/i40iw_vf.c |   85 +
 drivers/infiniband/hw/i40iw/i40iw_vf.h |   62 +
 drivers/infiniband/hw/i40iw/i40iw_virtchnl.c   |  748 +++
 drivers/infiniband/hw/i40iw/i40iw_virtchnl.h   |  124 +
 drivers/net/ethernet/intel/i40e/Makefile   |1 +
 drivers/net/ethernet/intel/i40e/i40e.h |   22 +
 drivers/net/ethernet/intel/i40e/i40e_client.c  | 1012 +
 drivers/net

[PATCH v3 04/16] i40iw: add connection management code

[Faisal Latif]

i40iw_cm.c i40iw_cm.h are used for connection management.

changes since v2:
Implemented interface changes as reg_phys_mr() is
not part of inifiniband interface  Done as
Christoph Hellwig <h...@infradead.org> did for nes.

Changes since v1:
improved casts
moved kmap() from i40iw_verbs.c to make them short
lived.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_cm.c | 4442 
 drivers/infiniband/hw/i40iw/i40iw_cm.h |  456 
 2 files changed, 4898 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_cm.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_cm.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_cm.c 
b/drivers/infiniband/hw/i40iw/i40iw_cm.c
new file mode 100644
index 000..0589bd1
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_cm.c
@@ -0,0 +1,4442 @@
+/***
+*
+* Copyright (c) 2015-2016 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+#include "i40iw.h"
+
+static void i40iw_rem_ref_cm_node(struct i40iw_cm_node *);
+static void i40iw_cm_post_event(struct i40iw_cm_event *event);
+static void i40iw_disconnect_worker(struct work_struct *work);
+
+/**
+ * i40iw_free_sqbuf - put back puda buffer if refcount = 0
+ * @dev: FPK device
+ * @buf: puda buffer to free
+ */
+void i40iw_free_sqbuf(struct i40iw_sc_dev *dev, void *bufp)
+{
+   struct i40iw_puda_buf *buf = (struct i40iw_puda_buf *)bufp;
+   struct i40iw_puda_rsrc *ilq = dev->ilq;
+
+   if (!atomic_dec_return(>refcount))
+   i40iw_puda_ret_bufpool(ilq, buf);
+}
+
+/**
+ * i40iw_derive_hw_ird_setting - Calculate IRD
+ *
+ * @cm_ird: IRD of connection's node
+ *
+ * The ird from the connection is rounded to a supported HW
+ * setting (2,8,32,64) and then encoded for ird_size field of
+ * qp_ctx
+ */
+static u8 i40iw_derive_hw_ird_setting(u16 cm_ird)
+{
+   u8 encoded_ird_size;
+   u8 pof2_cm_ird = 1;
+
+   /* round-off to next powerof2 */
+   while (pof2_cm_ird < cm_ird)
+   pof2_cm_ird *= 2;
+
+   /* ird_size field is encoded in qp_ctx */
+   switch (pof2_cm_ird) {
+   case I40IW_HW_IRD_SETTING_64:
+   encoded_ird_size = 3;
+   break;
+   case I40IW_HW_IRD_SETTING_32:
+   case I40IW_HW_IRD_SETTING_16:
+   encoded_ird_size = 2;
+   break;
+   case I40IW_HW_IRD_SETTING_8:
+   case I40IW_HW_IRD_SETTING_4:
+   encoded_ird_size = 1;
+   break;
+   case I40IW_HW_IRD_SETTING_2:
+   default:
+   encoded_ird_size = 0;
+   break;
+   }
+   return encoded_ird_size;
+}
+
+/**
+ * i40iw_record_ird_ord - Record IRD/ORD passed in
+ * @cm_node: connection's node
+ * @conn_ird: connection IRD
+ * @conn_ord: connection ORD
+ */
+static void i40iw_record_ird_ord(struct i40iw_cm_node *cm_node, u16 conn_ird, 
u16 conn_ord)
+{
+   if (conn_ird > I40IW_MAX_IRD_SIZE)
+   conn_ird = I40IW_M

Re: [PATCH V1 08/16] i40iw: add files for iwarp interface

[Faisal Latif]

On Thu, Dec 24, 2015 at 10:25:08AM +0200, Or Gerlitz wrote:
> On 12/24/2015 9:31 AM, Faisal Latif wrote:
> >On Wed, Dec 23, 2015 at 08:42:01AM -0800, Or Gerlitz wrote:
> >>On 12/22/2015 1:13 AM, Faisal Latif wrote:
> >>>+
> >>>+enum i40iw_memreg_type {
> >>>+  IW_MEMREG_TYPE_MEM = 0x,
> >>>+  IW_MEMREG_TYPE_QP = 0x0001,
> >>>+  IW_MEMREG_TYPE_CQ = 0x0002,
> >>>+  IW_MEMREG_TYPE_MW = 0x0003,
> >>>+  IW_MEMREG_TYPE_FMR = 0x0004,
> >>>+  IW_MEMREG_TYPE_FMEM = 0x0005,
> >>>+};
> >>Can't you re-use IB core values or derive that from the actual uverbs
> >>command?
> >I did not see anything which will have types that I needed.
> 
> what do you need? what is the role of this enum?

We register register memory from user library for qp and cq rings as well
as user memory registration and do need to distinguish in the driver.

> 
> >It will be confusing otherwise.
> 
> 
> >I will be reducing number of types from here though.
> 
> so why some of it can go? is that deal values which aren't used by the code

Yes, had added all different types for user requests. But For the time being, 
we will
just keep MEM, CQ, QP and add other as needed like Memory Windows.
> 
> Or.
> 
> >Thanks
> >Faisal
> 
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Re: [PATCH V1 00/16] add Intel(R) X722 iWARP driver

[Faisal Latif]

On Wed, Dec 23, 2015 at 11:09:56AM -0500, Doug Ledford wrote:
> On 12/21/2015 06:13 PM, Faisal Latif wrote:
> > This (V1) series contains the addition of the i40iw.ko driver after
> > incorporating the feedback from Christoph Hellwig and Joe Perches for
> > initial series.
> > 
> > This driver provides iWARP RDMA functionality for the Intel(R) X722 Ethernet
> > controller for PCI Physical Functions. It also has support for Virtual
> > Function driver (i40iwvf.ko), which that will be part of separate patch
> > series.
> > 
> > It cooperates with the Intel(R) X722 base driver (i40e.ko) to allocate
> > resources and program the controller.
> > 
> > This series include 1 patch to i40e.ko to provide interface support to
> > i40iw.ko. The interface provides a driver registration mechanism, resource
> > allocations, and device reset coordination mechanisms.
> > 
> > This patch series is based on Doug Ledford's k.o/for-4.5.
> 
> My apologies Faisal.  I had pushed that branch to github to get 0-day
> testing, but hadn't committed it to my k.o tree as it wasn't fully
> finalized (I was waiting for Or to get his chance to respond to it).
> Once Or responded, I ended up taking his patchset instead, which means
> you need to adjust your patches accordingly.
> 

Thanks Doug for the update, I will provide new patch series for latest
k.o. Also will make sure of shallow threading for the series. I should
have used V2 for this series instead of V1 and next series with k.o will
make it proper with V3.

> > 
> > Anjali Singhai Jain (1)
> > net/ethernet/intel/i40e: Add support for client interface for IWARP driver
> > 
> > Faisal Latif(15):
> > infiniband/hw/i40iw: add main, hdr, status
> > infiniband/hw/i40iw: add connection management code
> > infiniband/hw/i40iw: add puda code
> > infiniband/hw/i40iw: add pble resource files
> > infiniband/hw/i40iw: add hmc resource files
> > infiniband/hw/i40iw: add hw and utils files
> > infiniband/hw/i40iw: add files for iwarp interface
> > infiniband/hw/i40iw: add file to handle cqp calls
> > infiniband/hw/i40iw: add hardware related header files
> > infiniband/hw/i40iw: add X722 register file
> > infiniband/hw/i40iw: user kernel shared files
> > infiniband/hw/i40iw: virtual channel handling files
> > infiniband/hw/i40iw: Kconfig and Kbuild for iwarp module
> > infiniband/hw/i40iw: Add entry for I40IW rdma_netlink.h
> > infiniband/hw/i40iw: changes for build of i40iw module
> > 
> > Changes done from initial version to V1 are following.
> > 
> > Feedback received from Christoph Hellwig
> > *Remove pointless braces -improved after code review and changing
> > *kmap()/kunmap() - made it very short lived
> > *less casts -improved 
> > *Remove unused routine stubs - done
> > *no initialize to 0 or NULL when struct field were zeroed - done
> > *define UNREFERENCED_PARAMETER not needed -done
> > *remove define I40eE_MASK  -done
> > *rd32(), wr32() make them inline -done
> > *readq() use magic in linux/io-64-nonatomic-lo-hi.h -done
> > *SLEEP() define -done by removing it
> > *entry in rdma_netlink.h for I40IW should be in proper location
> > and separate patch -done
> > 
> > Feedback received from Joe Perches
> > *series to respuun re-spun against next - done with
> > Doug's Ledford's k.o/for-4.5
> > *Change to i40e client patch regarding mailing list - this is consistent
> > with other i40e files.
> > *Removed error from i40iw_pr_err() -done
> > *cqp_request() change from bitfields to bool -done
> > 
> 
> 
> -- 
> Doug Ledford <dledf...@redhat.com>
>   GPG KeyID: 0E572FDD
> 
> 

Faisal

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Re: [PATCH V1 00/16] add Intel(R) X722 iWARP driver

[Faisal Latif]

On Wed, Dec 23, 2015 at 08:39:32AM -0800, Or Gerlitz wrote:
> On 12/23/2015 6:35 PM, Faisal Latif wrote:
> > I will provide new patch series for latest k.o. Also will make sure of 
> > shallow threading for the series.
> 
> Please make sure that the cover letter will include the full output of 
> the git generated cover-letter so we can see the location of changes you 
> did to the IB core and the overall LOC volume of the driver.


Yes, next patch series V3 will have the git generated cover letter.

> 
> Did you run the driver through 0-day testing to avoid zillion small 
> follow up patches in a later point when this isin?
> 
> Or.

Thanks
Faisal
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Re: [PATCH V1 08/16] i40iw: add files for iwarp interface

[Faisal Latif]

On Wed, Dec 23, 2015 at 08:42:01AM -0800, Or Gerlitz wrote:
> On 12/22/2015 1:13 AM, Faisal Latif wrote:
> > +
> > +enum i40iw_memreg_type {
> > +   IW_MEMREG_TYPE_MEM = 0x,
> > +   IW_MEMREG_TYPE_QP = 0x0001,
> > +   IW_MEMREG_TYPE_CQ = 0x0002,
> > +   IW_MEMREG_TYPE_MW = 0x0003,
> > +   IW_MEMREG_TYPE_FMR = 0x0004,
> > +   IW_MEMREG_TYPE_FMEM = 0x0005,
> > +};
> 
> Can't you re-use IB core values or derive that from the actual uverbs 
> command?
I did not see anything which will have types that I needed. It will be confusing
otherwise.  I will be reducing number of types from here though.
> 
> Or.

Thanks
Faisal
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Re: [PATCH V1 15/16] i40iw: add entry in rdma_netlink

[Faisal Latif]

On Wed, Dec 23, 2015 at 08:50:15AM -0800, Or Gerlitz wrote:
> On 12/22/2015 1:13 AM, Faisal Latif wrote:
> > Add entry for port mapper services.
> >
> > Signed-off-by: Faisal Latif <faisal.la...@intel.com>
> > ---
> >   include/uapi/rdma/rdma_netlink.h | 1 +
> >   1 file changed, 1 insertion(+)
> >
> > diff --git a/include/uapi/rdma/rdma_netlink.h 
> > b/include/uapi/rdma/rdma_netlink.h
> > index c19a5dc..4fa418d 100644
> > --- a/include/uapi/rdma/rdma_netlink.h
> > +++ b/include/uapi/rdma/rdma_netlink.h
> > @@ -8,6 +8,7 @@ enum {
> > RDMA_NL_NES,
> > RDMA_NL_C4IW,
> > RDMA_NL_LS, /* RDMA Local Services */
> > +   RDMA_NL_I40IW,
> > RDMA_NL_NUM_CLIENTS
> >   };
> >   
> Do you use this value in down-stream patches of the series? if yes, 
> change the order to have this and other IB core changes before the code 
> that use that.

Yes, I will move this patch up before it being used.

> 
> Why the iwarp port mapper implementationhas to be repeated in each 
> driver? can you join your code in a common place and avoid the duplication?
> 
> root@r-dcs58 hw]# git grep RDMA_NL_ nes
> nes/nes.c:  [RDMA_NL_IWPM_REG_PID] = {.dump = iwpm_register_pid_cb},
> nes/nes.c:  [RDMA_NL_IWPM_ADD_MAPPING] = {.dump = iwpm_add_mapping_cb},
> nes/nes.c:  [RDMA_NL_IWPM_QUERY_MAPPING] = {.dump = 
> iwpm_add_and_query_mapping_cb},
> nes/nes.c:  [RDMA_NL_IWPM_REMOTE_INFO] = {.dump = iwpm_remote_info_cb},
> nes/nes.c:  [RDMA_NL_IWPM_HANDLE_ERR] = {.dump = iwpm_mapping_error_cb},
> nes/nes.c:  [RDMA_NL_IWPM_MAPINFO] = {.dump = iwpm_mapping_info_cb},
> nes/nes.c:  [RDMA_NL_IWPM_MAPINFO_NUM] = {.dump = 
> iwpm_ack_mapping_info_cb}
> nes/nes.c:  if (ibnl_add_client(RDMA_NL_NES, RDMA_NL_IWPM_NUM_OPS, 
> nes_nl_cb_table))
> nes/nes.c:  ret = iwpm_init(RDMA_NL_NES);
> nes/nes.c:  ibnl_remove_client(RDMA_NL_NES);
> nes/nes.c:  ibnl_remove_client(RDMA_NL_NES);
> nes/nes.c:  iwpm_exit(RDMA_NL_NES);
> nes/nes_cm.c: _sockaddr, RDMA_NL_NES);
> nes/nes_cm.c:   return iwpm_remove_mapping(_sockaddr, RDMA_NL_NES);
> nes/nes_cm.c:   _addr, RDMA_NL_NES);
> nes/nes_cm.c:   iwpm_err = iwpm_register_pid(_reg_msg, 
> RDMA_NL_NES);
> nes/nes_cm.c:   iwpm_err = iwpm_add_mapping(_msg, 
> RDMA_NL_NES);
> nes/nes_cm.c:   iwpm_err = iwpm_register_pid(_reg_msg, RDMA_NL_NES);
> nes/nes_cm.c:   iwpm_err = iwpm_add_and_query_mapping(_msg, 
> RDMA_NL_NES);
> 
> [root@r-dcs58 hw]# git grep RDMA_NL_ cxgb4/
> 
> cxgb4/cm.c: iwpm_remove_mapping(>com.local_addr, RDMA_NL_C4IW);
> cxgb4/cm.c: _ep->com.remote_addr, RDMA_NL_C4IW);
> cxgb4/cm.c: iwpm_err = iwpm_register_pid(_reg_msg, RDMA_NL_C4IW);
> cxgb4/cm.c: iwpm_err = iwpm_add_and_query_mapping(_msg, 
> RDMA_NL_C4IW);
> cxgb4/cm.c: >com.mapped_local_addr, RDMA_NL_C4IW)) {
> cxgb4/cm.c: iwpm_remove_mapping(>com.local_addr, RDMA_NL_C4IW);
> cxgb4/cm.c: iwpm_err = iwpm_register_pid(_reg_msg, RDMA_NL_C4IW);
> cxgb4/cm.c: iwpm_err = iwpm_add_mapping(_msg, RDMA_NL_C4IW);
> cxgb4/cm.c: >com.mapped_local_addr, RDMA_NL_C4IW)) {
> cxgb4/device.c: [RDMA_NL_IWPM_REG_PID] = {.dump = iwpm_register_pid_cb},
> cxgb4/device.c: [RDMA_NL_IWPM_ADD_MAPPING] = {.dump = iwpm_add_mapping_cb},
> cxgb4/device.c: [RDMA_NL_IWPM_QUERY_MAPPING] = {.dump = 
> iwpm_add_and_query_mapping_cb},
> cxgb4/device.c: [RDMA_NL_IWPM_HANDLE_ERR] = {.dump = iwpm_mapping_error_cb},
> cxgb4/device.c: [RDMA_NL_IWPM_REMOTE_INFO] = {.dump = iwpm_remote_info_cb},
> cxgb4/device.c: [RDMA_NL_IWPM_MAPINFO] = {.dump = iwpm_mapping_info_cb},
> cxgb4/device.c: [RDMA_NL_IWPM_MAPINFO_NUM] = {.dump = 
> iwpm_ack_mapping_info_cb}
> cxgb4/device.c: if (ibnl_add_client(RDMA_NL_C4IW, RDMA_NL_IWPM_NUM_OPS,
> cxgb4/device.c: err = iwpm_init(RDMA_NL_C4IW);
> cxgb4/device.c: ibnl_remove_client(RDMA_NL_C4IW);
> cxgb4/device.c: iwpm_exit(RDMA_NL_C4IW);
> cxgb4/device.c: ibnl_remove_client(RDMA_NL_C4IW);
> 

i40iw iwarp driver registers with port mapper and uses its services. Beside 
that it is not
the scope of the patch series.

Thanks
Faisal
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Re: [PATCH V1 00/16] add Intel(R) X722 iWARP driver

[Faisal Latif]

On Wed, Dec 23, 2015 at 09:05:08AM -0800, Or Gerlitz wrote:
> On 12/22/2015 1:13 AM, Faisal Latif wrote:
> > This driver provides iWARP RDMA functionality for the Intel(R) X722 Ethernet
> > controller for PCI Physical Functions.
> 
> Is there any public info on the X722, I didn't manage to find such.

it is not yet available as it is in early product cycle with the intent of 
getting initial
support into the kernel before users have the hardware available to purchase.
> 
> > It also has support for Virtual Function driver (i40iwvf.ko), which that 
> > will be part of separate patch series.
> 
> can you explain why do you need a separate rdma driver for VFs?

The VF driver (i40iwvf.ko) requires PF driver (i40iw.ko) to work. I will add 
more in the
cover page of the patch series.
> 
> Or.

Thanks
Faisal
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[PATCH V1 15/16] i40iw: add entry in rdma_netlink

[Faisal Latif]

Add entry for port mapper services.

Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 include/uapi/rdma/rdma_netlink.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h
index c19a5dc..4fa418d 100644
--- a/include/uapi/rdma/rdma_netlink.h
+++ b/include/uapi/rdma/rdma_netlink.h
@@ -8,6 +8,7 @@ enum {
RDMA_NL_NES,
RDMA_NL_C4IW,
RDMA_NL_LS, /* RDMA Local Services */
+   RDMA_NL_I40IW,
RDMA_NL_NUM_CLIENTS
 };
 
-- 
2.5.3

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[PATCH V1 16/16] i40iw: changes for build of i40iw module

[Faisal Latif]

MAINTAINERS, Kconfig, and Makefile to build i40iw module

Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 MAINTAINERS| 10 ++
 drivers/infiniband/Kconfig |  1 +
 drivers/infiniband/hw/Makefile |  1 +
 3 files changed, 12 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 9bff63c..fc85ad3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5601,6 +5601,16 @@ F:   Documentation/networking/i40evf.txt
 F: drivers/net/ethernet/intel/
 F: drivers/net/ethernet/intel/*/
 
+INTEL RDMA RNIC DRIVER
+M: Faisal Latif <faisal.la...@intel.com>
+R: Chien Tin Tung <chien.tin.t...@intel.com>
+R: Mustafa Ismail <mustafa.ism...@intel.com>
+R: Shiraz Saleem <shiraz.sal...@intel.com>
+R: Tatyana Nikolova <tatyana.e.nikol...@intel.com>
+L: linux-r...@vger.kernel.org
+S: Supported
+F: drivers/infiniband/hw/i40iw/
+
 INTEL-MID GPIO DRIVER
 M: David Cohen <david.a.co...@linux.intel.com>
 L: linux-g...@vger.kernel.org
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
index 282ec0b..cd8fa5c 100644
--- a/drivers/infiniband/Kconfig
+++ b/drivers/infiniband/Kconfig
@@ -59,6 +59,7 @@ source "drivers/infiniband/hw/mthca/Kconfig"
 source "drivers/infiniband/hw/qib/Kconfig"
 source "drivers/infiniband/hw/cxgb3/Kconfig"
 source "drivers/infiniband/hw/cxgb4/Kconfig"
+source "drivers/infiniband/hw/i40iw/Kconfig"
 source "drivers/infiniband/hw/mlx4/Kconfig"
 source "drivers/infiniband/hw/mlx5/Kconfig"
 source "drivers/infiniband/hw/nes/Kconfig"
diff --git a/drivers/infiniband/hw/Makefile b/drivers/infiniband/hw/Makefile
index aded2a5..8860057 100644
--- a/drivers/infiniband/hw/Makefile
+++ b/drivers/infiniband/hw/Makefile
@@ -2,6 +2,7 @@ obj-$(CONFIG_INFINIBAND_MTHCA)  += mthca/
 obj-$(CONFIG_INFINIBAND_QIB)   += qib/
 obj-$(CONFIG_INFINIBAND_CXGB3) += cxgb3/
 obj-$(CONFIG_INFINIBAND_CXGB4) += cxgb4/
+obj-$(CONFIG_INFINIBAND_I40IW) += i40iw/
 obj-$(CONFIG_MLX4_INFINIBAND)  += mlx4/
 obj-$(CONFIG_MLX5_INFINIBAND)  += mlx5/
 obj-$(CONFIG_INFINIBAND_NES)   += nes/
-- 
2.5.3

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[PATCH V1 01/16] i40e: Add support for client interface for IWARP driver

[Faisal Latif]

From: Anjali Singhai Jain 

This patch adds a Client interface for i40iw driver
support. Also expands the Virtchannel to support messages
from i40evf driver on behalf of i40iwvf driver.

This client API is used by the i40iw and i40iwvf driver
to access the core driver resources brokered by the i40e driver.

Signed-off-by: Anjali Singhai Jain 
---
 drivers/net/ethernet/intel/i40e/Makefile   |1 +
 drivers/net/ethernet/intel/i40e/i40e.h |   22 +
 drivers/net/ethernet/intel/i40e/i40e_client.c  | 1012 
 drivers/net/ethernet/intel/i40e/i40e_client.h  |  232 +
 drivers/net/ethernet/intel/i40e/i40e_main.c|  115 ++-
 drivers/net/ethernet/intel/i40e/i40e_type.h|3 +-
 drivers/net/ethernet/intel/i40e/i40e_virtchnl.h|   34 +
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c |  247 -
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h |4 +
 9 files changed, 1657 insertions(+), 13 deletions(-)
 create mode 100644 drivers/net/ethernet/intel/i40e/i40e_client.c
 create mode 100644 drivers/net/ethernet/intel/i40e/i40e_client.h

diff --git a/drivers/net/ethernet/intel/i40e/Makefile 
b/drivers/net/ethernet/intel/i40e/Makefile
index b4729ba..3b3c63e 100644
--- a/drivers/net/ethernet/intel/i40e/Makefile
+++ b/drivers/net/ethernet/intel/i40e/Makefile
@@ -41,6 +41,7 @@ i40e-objs := i40e_main.o \
i40e_diag.o \
i40e_txrx.o \
i40e_ptp.o  \
+   i40e_client.o   \
i40e_virtchnl_pf.o
 
 i40e-$(CONFIG_I40E_DCB) += i40e_dcb.o i40e_dcb_nl.o
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h 
b/drivers/net/ethernet/intel/i40e/i40e.h
index 4dd3e26..1417ae8 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -59,6 +59,7 @@
 #ifdef I40E_FCOE
 #include "i40e_fcoe.h"
 #endif
+#include "i40e_client.h"
 #include "i40e_virtchnl.h"
 #include "i40e_virtchnl_pf.h"
 #include "i40e_txrx.h"
@@ -178,6 +179,7 @@ struct i40e_lump_tracking {
u16 search_hint;
u16 list[0];
 #define I40E_PILE_VALID_BIT  0x8000
+#define I40E_IWARP_IRQ_PILE_ID  (I40E_PILE_VALID_BIT - 2)
 };
 
 #define I40E_DEFAULT_ATR_SAMPLE_RATE   20
@@ -264,6 +266,8 @@ struct i40e_pf {
 #endif /* I40E_FCOE */
u16 num_lan_qps;   /* num lan queues this PF has set up */
u16 num_lan_msix;  /* num queue vectors for the base PF vsi */
+   u16 num_iwarp_msix;/* num of iwarp vectors for this PF */
+   int iwarp_base_vector;
int queues_left;   /* queues left unclaimed */
u16 rss_size;  /* num queues in the RSS array */
u16 rss_size_max;  /* HW defined max RSS queues */
@@ -313,6 +317,7 @@ struct i40e_pf {
 #define I40E_FLAG_16BYTE_RX_DESC_ENABLED   BIT_ULL(13)
 #define I40E_FLAG_CLEAN_ADMINQ BIT_ULL(14)
 #define I40E_FLAG_FILTER_SYNC  BIT_ULL(15)
+#define I40E_FLAG_SERVICE_CLIENT_REQUESTED BIT_ULL(16)
 #define I40E_FLAG_PROCESS_MDD_EVENTBIT_ULL(17)
 #define I40E_FLAG_PROCESS_VFLR_EVENT   BIT_ULL(18)
 #define I40E_FLAG_SRIOV_ENABLEDBIT_ULL(19)
@@ -550,6 +555,8 @@ struct i40e_vsi {
struct kobject *kobj;  /* sysfs object */
bool current_isup; /* Sync 'link up' logging */
 
+   void *priv; /* client driver data reference. */
+
/* VSI specific handlers */
irqreturn_t (*irq_handler)(int irq, void *data);
 
@@ -702,6 +709,10 @@ void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
  struct i40e_vsi_context *ctxt,
  u8 enabled_tc, bool is_add);
 #endif
+void i40e_service_event_schedule(struct i40e_pf *pf);
+void i40e_notify_client_of_vf_msg(struct i40e_vsi *vsi, u32 vf_id,
+ u8 *msg, u16 len);
+
 int i40e_vsi_control_rings(struct i40e_vsi *vsi, bool enable);
 int i40e_reconfig_rss_queues(struct i40e_pf *pf, int queue_count);
 struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags, u16 uplink_seid,
@@ -724,6 +735,17 @@ static inline void i40e_dbg_pf_exit(struct i40e_pf *pf) {}
 static inline void i40e_dbg_init(void) {}
 static inline void i40e_dbg_exit(void) {}
 #endif /* CONFIG_DEBUG_FS*/
+/* needed by client drivers */
+int i40e_lan_add_device(struct i40e_pf *pf);
+int i40e_lan_del_device(struct i40e_pf *pf);
+void i40e_client_subtask(struct i40e_pf *pf);
+void i40e_notify_client_of_l2_param_changes(struct i40e_vsi *vsi);
+void i40e_notify_client_of_netdev_open(struct i40e_vsi *vsi);
+void i40e_notify_client_of_netdev_close(struct i40e_vsi *vsi, bool reset);
+void i40e_notify_client_of_vf_enable(struct i40e_pf *pf, u32 num_vfs);
+void i40e_notify_client_of_vf_reset(struct i40e_pf *pf, u32 vf_id);
+int i40e_vf_client_capable(struct i40e_pf *pf, u32 vf_id,
+  enum i40e_client_type type);
 /**
  * i40e_irq_dynamic_enable - 

[PATCH V1 00/16] add Intel(R) X722 iWARP driver

[Faisal Latif]

This (V1) series contains the addition of the i40iw.ko driver after
incorporating the feedback from Christoph Hellwig and Joe Perches for
initial series.

This driver provides iWARP RDMA functionality for the Intel(R) X722 Ethernet
controller for PCI Physical Functions. It also has support for Virtual
Function driver (i40iwvf.ko), which that will be part of separate patch
series.

It cooperates with the Intel(R) X722 base driver (i40e.ko) to allocate
resources and program the controller.

This series include 1 patch to i40e.ko to provide interface support to
i40iw.ko. The interface provides a driver registration mechanism, resource
allocations, and device reset coordination mechanisms.

This patch series is based on Doug Ledford's k.o/for-4.5.


Anjali Singhai Jain (1)
net/ethernet/intel/i40e: Add support for client interface for IWARP driver

Faisal Latif(15):
infiniband/hw/i40iw: add main, hdr, status
infiniband/hw/i40iw: add connection management code
infiniband/hw/i40iw: add puda code
infiniband/hw/i40iw: add pble resource files
infiniband/hw/i40iw: add hmc resource files
infiniband/hw/i40iw: add hw and utils files
infiniband/hw/i40iw: add files for iwarp interface
infiniband/hw/i40iw: add file to handle cqp calls
infiniband/hw/i40iw: add hardware related header files
infiniband/hw/i40iw: add X722 register file
infiniband/hw/i40iw: user kernel shared files
infiniband/hw/i40iw: virtual channel handling files
infiniband/hw/i40iw: Kconfig and Kbuild for iwarp module
infiniband/hw/i40iw: Add entry for I40IW rdma_netlink.h
infiniband/hw/i40iw: changes for build of i40iw module

Changes done from initial version to V1 are following.

Feedback received from Christoph Hellwig
*Remove pointless braces -improved after code review and changing
*kmap()/kunmap() - made it very short lived
*less casts -improved 
*Remove unused routine stubs - done
*no initialize to 0 or NULL when struct field were zeroed - done
*define UNREFERENCED_PARAMETER not needed -done
*remove define I40eE_MASK  -done
*rd32(), wr32() make them inline -done
*readq() use magic in linux/io-64-nonatomic-lo-hi.h -done
*SLEEP() define -done by removing it
*entry in rdma_netlink.h for I40IW should be in proper location
and separate patch -done

Feedback received from Joe Perches
*series to respuun re-spun against next - done with
Doug's Ledford's k.o/for-4.5
*Change to i40e client patch regarding mailing list - this is consistent
with other i40e files.
*Removed error from i40iw_pr_err() -done
*cqp_request() change from bitfields to bool -done
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[PATCH V1 02/16] i40iw: add main, hdr, status

[Faisal Latif]

i40iw_main.c contains routines for i40e <=> i40iw interface and setup.
i40iw.h is header file for main device data structures.
i40iw_status.h is for return status codes.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw.h|  568 +
 drivers/infiniband/hw/i40iw/i40iw_main.c   | 1907 
 drivers/infiniband/hw/i40iw/i40iw_status.h |  100 ++
 3 files changed, 2575 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_main.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_status.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw.h 
b/drivers/infiniband/hw/i40iw/i40iw.h
new file mode 100644
index 000..8740ea4
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw.h
@@ -0,0 +1,568 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#ifndef I40IW_IW_H
+#define I40IW_IW_H
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+#include "i40iw_status.h"
+#include "i40iw_osdep.h"
+#include "i40iw_d.h"
+#include "i40iw_hmc.h"
+
+#include 
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+#include "i40iw_ucontext.h"
+#include "i40iw_pble.h"
+#include "i40iw_verbs.h"
+#include "i40iw_cm.h"
+#include "i40iw_user.h"
+#include "i40iw_puda.h"
+
+#define I40IW_FW_VERSION  2
+#define I40IW_HW_VERSION  2
+
+#define I40IW_ARP_ADD 1
+#define I40IW_ARP_DELETE  2
+#define I40IW_ARP_RESOLVE 3
+
+#define I40IW_MACIP_ADD 1
+#define I40IW_MACIP_DELETE  2
+
+#define IW_CCQ_SIZE (I40IW_CQP_SW_SQSIZE_2048 + 1)
+#define IW_CEQ_SIZE 2048
+#define IW_AEQ_SIZE 2048
+
+#define RX_BUF_SIZE(1536 + 8)
+#define IW_REG0_SIZE   (4 * 1024)
+#define IW_TX_TIMEOUT  (6 * HZ)
+#define IW_FIRST_QPN   1
+#define IW_SW_CONTEXT_ALIGN1024
+
+#define MAX_DPC_ITERATIONS 128
+
+#define I40IW_EVENT_TIMEOUT10
+#define I40IW_VCHNL_EVENT_TIMEOUT  10
+
+#defineI40IW_NO_VLAN   0x
+#defineI40IW_NO_QSET   0x
+
+/* access to mcast filter list */
+#define IW_ADD_MCAST false
+#define IW_DEL_MCAST true
+
+#define I40IW_DRV_OPT_ENABLE_MPA_VER_0 0x0001
+#define I40IW_DRV_OPT_DISABLE_MPA_CRC  0x0002
+#define I40IW_DRV_OPT_DISABLE_FIRST_WRITE  0x0004
+#define I40IW_DRV_OPT_DISABLE_INTF 0x0008
+#define I40IW_DRV_OPT_ENABLE_MSI   0x0010
+#define I40IW_DRV_OPT_DUAL_LOGICAL_PORT0x0020
+#define I40IW_DRV_OPT_NO_INLINE_DATA   0x0080
+#define I40IW_DRV_OPT_DISABLE_INT_MOD  0x0100
+#define I40IW_DRV_OPT_DISABLE_VIRT_WQ  0x0200
+#define I40IW_DRV_OPT_ENABLE_PAU   0x0400
+#define I40IW_DRV_OPT_MCAST_LOGPORT_MAP0x0800
+
+#define IW_HMC_OBJ_TYPE_NUM ARRAY_SIZE(iw_hmc_obj_types)
+#define IW_CFG_FPM_QP_COUNT32768
+
+#define I40IW_MTU_TO_MSS   40
+#define I40IW_DEFAULT_MSS  1460
+
+struct i40iw_cqp_compl_info {
+   u32 op_ret_val;
+  

[PATCH V1 08/16] i40iw: add files for iwarp interface

[Faisal Latif]

i40iw_verbs.[ch] are to handle iwarp interface.

Added feedback provided by Christoph Hellwig

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_ucontext.h |  110 ++
 drivers/infiniband/hw/i40iw/i40iw_verbs.c| 2406 ++
 drivers/infiniband/hw/i40iw/i40iw_verbs.h|  173 ++
 3 files changed, 2689 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_ucontext.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_verbs.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_verbs.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_ucontext.h 
b/drivers/infiniband/hw/i40iw/i40iw_ucontext.h
new file mode 100644
index 000..5c65c25
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_ucontext.h
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2006 - 2015 Intel Corporation.  All rights reserved.
+ * Copyright (c) 2005 Topspin Communications.  All rights reserved.
+ * Copyright (c) 2005 Cisco Systems.  All rights reserved.
+ * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ *  - Redistributions of source code must retain the above
+ *copyright notice, this list of conditions and the following
+ *disclaimer.
+ *
+ *  - Redistributions in binary form must reproduce the above
+ *copyright notice, this list of conditions and the following
+ *disclaimer in the documentation and/or other materials
+ *provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#ifndef I40IW_USER_CONTEXT_H
+#define I40IW_USER_CONTEXT_H
+
+#include 
+
+#define I40IW_ABI_USERSPACE_VER 4
+#define I40IW_ABI_KERNEL_VER4
+struct i40iw_alloc_ucontext_req {
+   __u32 reserved32;
+   __u8 userspace_ver;
+   __u8 reserved8[3];
+};
+
+struct i40iw_alloc_ucontext_resp {
+   __u32 max_pds;  /* maximum pds allowed for this user process */
+   __u32 max_qps;  /* maximum qps allowed for this user process */
+   __u32 wq_size;  /* size of the WQs (sq+rq) allocated to the 
mmaped area */
+   __u8 kernel_ver;
+   __u8 reserved[3];
+};
+
+struct i40iw_alloc_pd_resp {
+   __u32 pd_id;
+   __u8 reserved[4];
+};
+
+struct i40iw_create_cq_req {
+   __u64 user_cq_buffer;
+   __u64 user_shadow_area;
+};
+
+struct i40iw_create_qp_req {
+   __u64 user_wqe_buffers;
+   __u64 user_compl_ctx;
+
+   /* UDA QP PHB */
+   __u64 user_sq_phb;  /* place for VA of the sq phb buff */
+   __u64 user_rq_phb;  /* place for VA of the rq phb buff */
+};
+
+enum i40iw_memreg_type {
+   IW_MEMREG_TYPE_MEM = 0x,
+   IW_MEMREG_TYPE_QP = 0x0001,
+   IW_MEMREG_TYPE_CQ = 0x0002,
+   IW_MEMREG_TYPE_MW = 0x0003,
+   IW_MEMREG_TYPE_FMR = 0x0004,
+   IW_MEMREG_TYPE_FMEM = 0x0005,
+};
+
+struct i40iw_mem_reg_req {
+   __u16 reg_type; /* Memory, QP or CQ */
+   __u16 cq_pages;
+   __u16 rq_pages;
+   __u16 sq_pages;
+};
+
+struct i40iw_create_cq_resp {
+   __u32 cq_id;
+   __u32 cq_size;
+   __u32 mmap_db_index;
+   __u32 reserved;
+};
+
+struct i40iw_create_qp_resp {
+   __u32 qp_id;
+   __u32 actual_sq_size;
+   __u32 actual_rq_size;
+   __u32 i40iw_drv_opt;
+   __u16 push_idx;
+   __u8  lsmm;
+   __u8  rsvd2;
+};
+
+#endif
diff --git a/drivers/infiniband/hw/i40iw/i40iw_verbs.c 
b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
new file mode 100644
index 000..accc3dc
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
@@ -0,0 +1,2406 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Versio

[PATCH V1 05/16] i40iw: add pble resource files

[Faisal Latif]

i40iw_pble.[ch] to manage pble resource for iwarp clients.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_pble.c | 618 +++
 drivers/infiniband/hw/i40iw/i40iw_pble.h | 131 +++
 2 files changed, 749 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_pble.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_pble.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_pble.c 
b/drivers/infiniband/hw/i40iw/i40iw_pble.c
new file mode 100644
index 000..eb32cc7
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_pble.c
@@ -0,0 +1,618 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_status.h"
+#include "i40iw_osdep.h"
+#include "i40iw_register.h"
+#include "i40iw_hmc.h"
+
+#include "i40iw_d.h"
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+
+#include 
+#include 
+#include 
+#include "i40iw_pble.h"
+#include "i40iw.h"
+
+struct i40iw_device;
+static enum i40iw_status_code add_pble_pool(struct i40iw_sc_dev *dev,
+   struct i40iw_hmc_pble_rsrc 
*pble_rsrc);
+static void i40iw_free_vmalloc_mem(struct i40iw_hw *hw, struct i40iw_chunk 
*chunk);
+
+/**
+ * i40iw_destroy_pble_pool - destroy pool during module unload
+ * @pble_rsrc: pble resources
+ */
+void i40iw_destroy_pble_pool(struct i40iw_sc_dev *dev, struct 
i40iw_hmc_pble_rsrc *pble_rsrc)
+{
+   struct list_head *clist;
+   struct list_head *tlist;
+   struct i40iw_chunk *chunk;
+   struct i40iw_pble_pool *pinfo = _rsrc->pinfo;
+
+   if (pinfo->pool) {
+   list_for_each_safe(clist, tlist, >clist) {
+   chunk = list_entry(clist, struct i40iw_chunk, list);
+   if (chunk->type == I40IW_VMALLOC)
+   i40iw_free_vmalloc_mem(dev->hw, chunk);
+   kfree(chunk);
+   }
+   gen_pool_destroy(pinfo->pool);
+   }
+}
+
+/**
+ * i40iw_hmc_init_pble - Initialize pble resources during module load
+ * @dev: i40iw_sc_dev struct
+ * @pble_rsrc: pble resources
+ */
+enum i40iw_status_code i40iw_hmc_init_pble(struct i40iw_sc_dev *dev,
+  struct i40iw_hmc_pble_rsrc 
*pble_rsrc)
+{
+   struct i40iw_hmc_info *hmc_info;
+   u32 fpm_idx = 0;
+
+   hmc_info = dev->hmc_info;
+   pble_rsrc->fpm_base_addr = hmc_info->hmc_obj[I40IW_HMC_IW_PBLE].base;
+   /* Now start the pble' on 4k boundary */
+   if (pble_rsrc->fpm_base_addr & 0xfff)
+   fpm_idx = (PAGE_SIZE - (pble_rsrc->fpm_base_addr & 0xfff)) >> 3;
+
+   pble_rsrc->unallocated_pble =
+   hmc_info->hmc_obj[I40IW_HMC_IW_PBLE].cnt - fpm_idx;
+   pble_rsrc->next_fpm_addr = pble_rsrc->fpm_base_addr + (fpm_idx << 3);
+
+   pble_rsrc->pinfo.pool_shift = POOL_SHIFT;
+   pble_rsrc->pinfo.pool = gen_pool_create(pble_rsrc->pinfo.pool_shift, 
-1);
+   INIT_LIST_HEAD(_rsrc->pinfo.clist);
+   if (!pble_rsrc->pinfo.pool)
+   goto error;
+
+   if (add_pble_pool(dev, pble_rsrc))
+   goto error;
+
+   retu

[PATCH V1 13/16] i40iw: virtual channel handling files

[Faisal Latif]

i40iw_vf.[ch] and i40iw_virtchnl[ch] are used for virtual
channel support for iWARP VF module.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_vf.c   |  85 +++
 drivers/infiniband/hw/i40iw/i40iw_vf.h   |  62 +++
 drivers/infiniband/hw/i40iw/i40iw_virtchnl.c | 748 +++
 drivers/infiniband/hw/i40iw/i40iw_virtchnl.h | 124 +
 4 files changed, 1019 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_vf.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_vf.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_virtchnl.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_virtchnl.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_vf.c 
b/drivers/infiniband/hw/i40iw/i40iw_vf.c
new file mode 100644
index 000..b23f3c4
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_vf.c
@@ -0,0 +1,85 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_osdep.h"
+#include "i40iw_register.h"
+#include "i40iw_status.h"
+#include "i40iw_hmc.h"
+#include "i40iw_d.h"
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+#include "i40iw_vf.h"
+
+/**
+ * i40iw_manage_vf_pble_bp - manage vf pble
+ * @cqp: cqp for cqp' sq wqe
+ * @info: pble info
+ * @scratch: pointer for completion
+ * @post_sq: to post and ring
+ */
+enum i40iw_status_code i40iw_manage_vf_pble_bp(struct i40iw_sc_cqp *cqp,
+  struct i40iw_manage_vf_pble_info 
*info,
+  u64 scratch,
+  bool post_sq)
+{
+   u64 *wqe;
+   u64 temp, header, pd_pl_pba = 0;
+
+   wqe = i40iw_sc_cqp_get_next_send_wqe(cqp, scratch);
+   if (!wqe)
+   return I40IW_ERR_RING_FULL;
+
+   temp = LS_64(info->pd_entry_cnt, I40IW_CQPSQ_MVPBP_PD_ENTRY_CNT) |
+   LS_64(info->first_pd_index, I40IW_CQPSQ_MVPBP_FIRST_PD_INX) |
+   LS_64(info->sd_index, I40IW_CQPSQ_MVPBP_SD_INX);
+   set_64bit_val(wqe, 16, temp);
+
+   header = LS_64((info->inv_pd_ent ? 1 : 0), 
I40IW_CQPSQ_MVPBP_INV_PD_ENT) |
+   LS_64(I40IW_CQP_OP_MANAGE_VF_PBLE_BP, I40IW_CQPSQ_OPCODE) |
+   LS_64(cqp->polarity, I40IW_CQPSQ_WQEVALID);
+   set_64bit_val(wqe, 24, header);
+
+   pd_pl_pba = LS_64(info->pd_pl_pba >> 3, I40IW_CQPSQ_MVPBP_PD_PLPBA);
+   set_64bit_val(wqe, 32, pd_pl_pba);
+
+   i40iw_debug_buf(cqp->dev, I40IW_DEBUG_WQE, "MANAGE VF_PBLE_BP WQE", 
wqe, I40IW_CQP_WQE_SIZE * 8);
+
+   if (post_sq)
+   i40iw_sc_cqp_post_sq(cqp);
+   return 0;
+}
+
+struct i40iw_vf_cqp_ops iw_vf_cqp_ops = {
+   i40iw_manage_vf_pble_bp
+};
diff --git a/drivers/infiniband/hw/i40iw/i40iw_vf.h 
b/drivers/infiniband/hw/i40iw/i40iw_vf.h
new file mode 100644
index 000..cfe112d
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_vf.h
@@ -0,0 +1,62 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Pu

[PATCH V1 03/16] i40iw: add connection management code

[Faisal Latif]

i40iw_cm.c i40iw_cm.h are used for connection management.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_cm.c |  
 drivers/infiniband/hw/i40iw/i40iw_cm.h |  456 
 2 files changed, 4900 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_cm.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_cm.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_cm.c 
b/drivers/infiniband/hw/i40iw/i40iw_cm.c
new file mode 100644
index 000..e559e1c
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_cm.c
@@ -0,0 +1, @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+#include "i40iw.h"
+
+static void i40iw_rem_ref_cm_node(struct i40iw_cm_node *);
+static void i40iw_cm_post_event(struct i40iw_cm_event *event);
+static void i40iw_disconnect_worker(struct work_struct *work);
+
+/**
+ * i40iw_free_sqbuf - put back puda buffer if refcount = 0
+ * @dev: FPK device
+ * @buf: puda buffer to free
+ */
+void i40iw_free_sqbuf(struct i40iw_sc_dev *dev, void *bufp)
+{
+   struct i40iw_puda_buf *buf = (struct i40iw_puda_buf *)bufp;
+   struct i40iw_puda_rsrc *ilq = dev->ilq;
+
+   if (!atomic_dec_return(>refcount))
+   i40iw_puda_ret_bufpool(ilq, buf);
+}
+
+/**
+ * i40iw_derive_hw_ird_setting - Calculate IRD
+ *
+ * @cm_ird: IRD of connection's node
+ *
+ * The ird from the connection is rounded to a supported HW
+ * setting (2,8,32,64) and then encoded for ird_size field of
+ * qp_ctx
+ */
+static u8 i40iw_derive_hw_ird_setting(u16 cm_ird)
+{
+   u8 encoded_ird_size;
+   u8 pof2_cm_ird = 1;
+
+   /* round-off to next powerof2 */
+   while (pof2_cm_ird < cm_ird)
+   pof2_cm_ird *= 2;
+
+   /* ird_size field is encoded in qp_ctx */
+   switch (pof2_cm_ird) {
+   case I40IW_HW_IRD_SETTING_64:
+   encoded_ird_size = 3;
+   break;
+   case I40IW_HW_IRD_SETTING_32:
+   case I40IW_HW_IRD_SETTING_16:
+   encoded_ird_size = 2;
+   break;
+   case I40IW_HW_IRD_SETTING_8:
+   case I40IW_HW_IRD_SETTING_4:
+   encoded_ird_size = 1;
+   break;
+   case I40IW_HW_IRD_SETTING_2:
+   default:
+   encoded_ird_size = 0;
+   break;
+   }
+   return encoded_ird_size;
+}
+
+/**
+ * i40iw_record_ird_ord - Record IRD/ORD passed in
+ * @cm_node: connection's node
+ * @conn_ird: connection IRD
+ * @conn_ord: connection ORD
+ */
+static void i40iw_record_ird_ord(struct i40iw_cm_node *cm_node, u16 conn_ird, 
u16 conn_ord)
+{
+   if (conn_ird > I40IW_MAX_IRD_SIZE)
+   conn_ird = I40IW_MAX_IRD_SIZE;
+
+   if (conn_ord > I40IW_MAX_ORD_SIZE)
+   conn_ord = I40IW_MAX_ORD_SIZE;
+
+   cm_node->ird_size = conn_ird;
+   cm_node->ord_size = conn_ord;
+}
+
+/**
+ * i40iw_copy_ip_ntohl - change network to host ip
+ * @dst: host ip
+ * @src: big endian
+ */
+void i40iw_copy_ip_

[PATCH V1 06/16] i40iw: add hmc resource files

[Faisal Latif]

i40iw_hmc.[ch] are to manage hmc for the device.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_hmc.c | 821 
 drivers/infiniband/hw/i40iw/i40iw_hmc.h | 241 ++
 2 files changed, 1062 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_hmc.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_hmc.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_hmc.c 
b/drivers/infiniband/hw/i40iw/i40iw_hmc.c
new file mode 100644
index 000..96bec54
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_hmc.c
@@ -0,0 +1,821 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_osdep.h"
+#include "i40iw_register.h"
+#include "i40iw_status.h"
+#include "i40iw_hmc.h"
+#include "i40iw_d.h"
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+#include "i40iw_vf.h"
+#include "i40iw_virtchnl.h"
+
+/**
+ * i40iw_find_sd_index_limit - finds segment descriptor index limit
+ * @hmc_info: pointer to the HMC configuration information structure
+ * @type: type of HMC resources we're searching
+ * @index: starting index for the object
+ * @cnt: number of objects we're trying to create
+ * @sd_idx: pointer to return index of the segment descriptor in question
+ * @sd_limit: pointer to return the maximum number of segment descriptors
+ *
+ * This function calculates the segment descriptor index and index limit
+ * for the resource defined by i40iw_hmc_rsrc_type.
+ */
+
+static inline void i40iw_find_sd_index_limit(struct i40iw_hmc_info *hmc_info,
+u32 type,
+u32 idx,
+u32 cnt,
+u32 *sd_idx,
+u32 *sd_limit)
+{
+   u64 fpm_addr, fpm_limit;
+
+   fpm_addr = hmc_info->hmc_obj[(type)].base +
+   hmc_info->hmc_obj[type].size * idx;
+   fpm_limit = fpm_addr + hmc_info->hmc_obj[type].size * cnt;
+   *sd_idx = (u32)(fpm_addr / I40IW_HMC_DIRECT_BP_SIZE);
+   *sd_limit = (u32)((fpm_limit - 1) / I40IW_HMC_DIRECT_BP_SIZE);
+   *sd_limit += 1;
+}
+
+/**
+ * i40iw_find_pd_index_limit - finds page descriptor index limit
+ * @hmc_info: pointer to the HMC configuration information struct
+ * @type: HMC resource type we're examining
+ * @idx: starting index for the object
+ * @cnt: number of objects we're trying to create
+ * @pd_index: pointer to return page descriptor index
+ * @pd_limit: pointer to return page descriptor index limit
+ *
+ * Calculates the page descriptor index and index limit for the resource
+ * defined by i40iw_hmc_rsrc_type.
+ */
+
+static inline void i40iw_find_pd_index_limit(struct i40iw_hmc_info *hmc_info,
+u32 type,
+u32 idx,
+u32 cnt,
+u32 *pd_idx,
+u32 *pd_limit)
+{
+   u64 fpm_adr, fpm_limit;
+
+   fpm_adr = hmc_info->hmc_obj[type].base +
+   hmc_info-&g

[PATCH V1 04/16] i40iw: add puda code

[Faisal Latif]

i40iw_puda.[ch] are files to handle iwarp connection packets as
well as exception packets over multiple privilege mode uda queues.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_puda.c | 1437 ++
 drivers/infiniband/hw/i40iw/i40iw_puda.h |  183 
 2 files changed, 1620 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_puda.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_puda.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_puda.c 
b/drivers/infiniband/hw/i40iw/i40iw_puda.c
new file mode 100644
index 000..cfbef59
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_puda.c
@@ -0,0 +1,1437 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_osdep.h"
+#include "i40iw_register.h"
+#include "i40iw_status.h"
+#include "i40iw_hmc.h"
+
+#include "i40iw_d.h"
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+#include "i40iw_puda.h"
+
+static void i40iw_ieq_receive(struct i40iw_sc_dev *dev,
+ struct i40iw_puda_buf *buf);
+static void i40iw_ieq_tx_compl(struct i40iw_sc_dev *dev, void *sqwrid);
+static void i40iw_ilq_putback_rcvbuf(struct i40iw_sc_qp *qp, u32 wqe_idx);
+static enum i40iw_status_code i40iw_puda_replenish_rq(struct i40iw_puda_rsrc
+ *rsrc, bool initial);
+/**
+ * i40iw_puda_get_listbuf - get buffer from puda list
+ * @list: list to use for buffers (ILQ or IEQ)
+ */
+static struct i40iw_puda_buf *i40iw_puda_get_listbuf(struct list_head *list)
+{
+   struct i40iw_puda_buf *buf = NULL;
+
+   if (!list_empty(list)) {
+   buf = (struct i40iw_puda_buf *)list->next;
+   list_del((struct list_head *)>list);
+   }
+   return buf;
+}
+
+/**
+ * i40iw_puda_get_bufpool - return buffer from resource
+ * @rsrc: resource to use for buffer
+ */
+struct i40iw_puda_buf *i40iw_puda_get_bufpool(struct i40iw_puda_rsrc *rsrc)
+{
+   struct i40iw_puda_buf *buf = NULL;
+   struct list_head *list = >bufpool;
+   unsigned long   flags;
+
+   spin_lock_irqsave(>bufpool_lock, flags);
+   buf = i40iw_puda_get_listbuf(list);
+   if (buf)
+   rsrc->avail_buf_count--;
+   else
+   rsrc->stats_buf_alloc_fail++;
+   spin_unlock_irqrestore(>bufpool_lock, flags);
+   return buf;
+}
+
+/**
+ * i40iw_puda_ret_bufpool - return buffer to rsrc list
+ * @rsrc: resource to use for buffer
+ * @buf: buffe to return to resouce
+ */
+void i40iw_puda_ret_bufpool(struct i40iw_puda_rsrc *rsrc,
+   struct i40iw_puda_buf *buf)
+{
+   unsigned long   flags;
+
+   spin_lock_irqsave(>bufpool_lock, flags);
+   list_add(>list, >bufpool);
+   spin_unlock_irqrestore(>bufpool_lock, flags);
+   rsrc->avail_buf_count++;
+}
+
+/**
+ * i40iw_puda_post_recvbuf - set wqe for rcv buffer
+ * @rsrc: resource ptr
+ * @wqe_idx: wqe index to use
+ * @buf: puda buffer for rcv q
+ * @initial: flag if during init time
+ */
+static void i40iw_puda_post_recvbuf(struct i40iw_puda_rsrc *rsrc, u32 wqe_idx,
+   struct i40iw_puda_buf *buf, bool initial)

[PATCH V1 07/16] i40iw: add hw and utils files

[Faisal Latif]

i40iw_hw.c, i40iw_utils.c and i40iw_osdep.h are files to handle
interrupts and processing.

Added feeback from Cristoph Hellwig.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_hw.c|  730 +
 drivers/infiniband/hw/i40iw/i40iw_osdep.h |  215 +
 drivers/infiniband/hw/i40iw/i40iw_utils.c | 1256 +
 3 files changed, 2201 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_hw.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_osdep.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_utils.c

diff --git a/drivers/infiniband/hw/i40iw/i40iw_hw.c 
b/drivers/infiniband/hw/i40iw/i40iw_hw.c
new file mode 100644
index 000..93ef834
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_hw.c
@@ -0,0 +1,730 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+#include "i40iw.h"
+
+/**
+ * i40iw_initialize_hw_resources - initialize hw resource during open
+ * @iwdev: iwarp device
+ */
+u32 i40iw_initialize_hw_resources(struct i40iw_device *iwdev)
+{
+   unsigned long num_pds;
+   u32 resources_size;
+   u32 max_mr;
+   u32 max_qp;
+   u32 max_cq;
+   u32 arp_table_size;
+   u32 mrdrvbits;
+   void *resource_ptr;
+
+   max_qp = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_QP].cnt;
+   max_cq = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_CQ].cnt;
+   max_mr = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_MR].cnt;
+   arp_table_size = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_ARP].cnt;
+   iwdev->max_cqe = 0xF;
+   num_pds = max_qp * 4;
+   resources_size = sizeof(struct i40iw_arp_entry) * arp_table_size;
+   resources_size += sizeof(unsigned long) * BITS_TO_LONGS(max_qp);
+   resources_size += sizeof(unsigned long) * BITS_TO_LONGS(max_mr);
+   resources_size += sizeof(unsigned long) * BITS_TO_LONGS(max_cq);
+   resources_size += sizeof(unsigned long) * BITS_TO_LONGS(num_pds);
+   resources_size += sizeof(unsigned long) * BITS_TO_LONGS(arp_table_size);
+   resources_size += sizeof(struct i40iw_qp **) * max_qp;
+   iwdev->mem_resources = kzalloc(resources_size, GFP_KERNEL);
+
+   if (!iwdev->mem_resources)
+   return -ENOMEM;
+
+   iwdev->max_qp = max_qp;
+   iwdev->max_mr = max_mr;
+   iwdev->max_cq = max_cq;
+   iwdev->max_pd = num_pds;
+   iwdev->arp_table_size = arp_table_size;
+   iwdev->arp_table = (struct i40iw_arp_entry *)iwdev->mem_resources;
+   resource_ptr = iwdev->mem_resources + (sizeof(struct i40iw_arp_entry) * 
arp_table_size);
+
+   iwdev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY |
+   IB_DEVICE_MEM_WINDOW | IB_DEVICE_MEM_MGT_EXTENSIONS;
+
+   iwdev->allocated_qps = resource_ptr;
+   iwdev->allocated_cqs = >allocated_qps[BITS_TO_LONGS(max_qp)];
+   iwdev->allocated_mrs = >allocated_cqs[BITS_TO_LONGS(max_cq)];
+   iwdev->allocated_pds = >allocated_mrs[BITS_TO_LONGS(max_mr)];
+   iwdev->allocated_arps = >allocated_pds[BITS_TO_LONGS(num_pds)];
+   iwdev->qp_table = (struct i40iw_qp 
**)(&g

[PATCH V1 12/16] i40iw: user kernel shared files

[Faisal Latif]

i40iw_user.h and i40iw_uk.c are used by both user library as well as
kernel requests.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_uk.c   | 1209 ++
 drivers/infiniband/hw/i40iw/i40iw_user.h |  442 +++
 2 files changed, 1651 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_uk.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_user.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_uk.c 
b/drivers/infiniband/hw/i40iw/i40iw_uk.c
new file mode 100644
index 000..9f2a6e2
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_uk.c
@@ -0,0 +1,1209 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_osdep.h"
+#include "i40iw_status.h"
+#include "i40iw_d.h"
+#include "i40iw_user.h"
+#include "i40iw_register.h"
+
+static u32 nop_signature = 0x;
+
+/**
+ * i40iw_nop_1 - insert a nop wqe and move head. no post work
+ * @qp: hw qp ptr
+ */
+static enum i40iw_status_code i40iw_nop_1(struct i40iw_qp_uk *qp)
+{
+   u64 header, *wqe;
+   u64 *wqe_0 = NULL;
+   u32 wqe_idx, peek_head;
+   bool signaled = false;
+
+   if (!qp->sq_ring.head)
+   return I40IW_ERR_PARAM;
+
+   wqe_idx = I40IW_RING_GETCURRENT_HEAD(qp->sq_ring);
+   wqe = >sq_base[wqe_idx << 2];
+   peek_head = (qp->sq_ring.head + 1) % qp->sq_ring.size;
+   wqe_0 = >sq_base[peek_head << 2];
+   if (peek_head)
+   wqe_0[3] = LS_64(!qp->swqe_polarity, I40IWQPSQ_VALID);
+   else
+   wqe_0[3] = LS_64(qp->swqe_polarity, I40IWQPSQ_VALID);
+
+   set_64bit_val(wqe, 0, 0);
+   set_64bit_val(wqe, 8, 0);
+   set_64bit_val(wqe, 16, 0);
+
+   header = LS_64(I40IWQP_OP_NOP, I40IWQPSQ_OPCODE) |
+   LS_64(signaled, I40IWQPSQ_SIGCOMPL) |
+   LS_64(qp->swqe_polarity, I40IWQPSQ_VALID) | nop_signature++;
+
+   wmb();  /* Memory barrier to ensure data is written before valid bit is 
set */
+
+   set_64bit_val(wqe, 24, header);
+   return 0;
+}
+
+/**
+ * i40iw_qp_post_wr - post wr to hrdware
+ * @qp: hw qp ptr
+ */
+void i40iw_qp_post_wr(struct i40iw_qp_uk *qp)
+{
+   u64 temp;
+   u32 hw_sq_tail;
+   u32 sw_sq_head;
+
+   wmb(); /* make sure valid bit is written */
+
+   /* read the doorbell shadow area */
+   get_64bit_val(qp->shadow_area, 0, );
+
+   rmb(); /* make sure read is finished */
+
+   hw_sq_tail = (u32)RS_64(temp, I40IW_QP_DBSA_HW_SQ_TAIL);
+   sw_sq_head = I40IW_RING_GETCURRENT_HEAD(qp->sq_ring);
+   if (sw_sq_head != hw_sq_tail) {
+   if (sw_sq_head > qp->initial_ring.head) {
+   if ((hw_sq_tail >= qp->initial_ring.head) &&
+   (hw_sq_tail < sw_sq_head)) {
+   writel(qp->qp_id, qp->wqe_alloc_reg);
+   }
+   } else if (sw_sq_head != qp->initial_ring.head) {
+   if ((hw_sq_tail >= qp->initial_ring.head) ||
+   (hw_sq_tail < sw_sq_head)) {
+   writel(qp->qp_id, qp->wqe_alloc_reg);
+   }
+   

[PATCH V1 09/16] i40iw: add file to handle cqp calls

[Faisal Latif]

i40iw_ctrl.c provides for hardware wqe supporti and cqp.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_ctrl.c | 4740 ++
 1 file changed, 4740 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_ctrl.c

diff --git a/drivers/infiniband/hw/i40iw/i40iw_ctrl.c 
b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
new file mode 100644
index 000..dba742a
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
@@ -0,0 +1,4740 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_osdep.h"
+#include "i40iw_register.h"
+#include "i40iw_status.h"
+#include "i40iw_hmc.h"
+
+#include "i40iw_d.h"
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+#include "i40iw_vf.h"
+#include "i40iw_virtchnl.h"
+
+/**
+ * i40iw_insert_wqe_hdr - write wqe header
+ * @wqe: cqp wqe for header
+ * @header: header for the cqp wqe
+ */
+static inline void i40iw_insert_wqe_hdr(u64 *wqe, u64 header)
+{
+   wmb();/* make sure WQE is populated before valid bit is set 
*/
+   set_64bit_val(wqe, 24, header);
+}
+
+/**
+ * i40iw_get_cqp_reg_info - get head and tail for cqp using registers
+ * @cqp: struct for cqp hw
+ * @val: cqp tail register value
+ * @tail:wqtail register value
+ * @error: cqp processing err
+ */
+static inline void i40iw_get_cqp_reg_info(struct i40iw_sc_cqp *cqp,
+ u32 *val,
+ u32 *tail,
+ u32 *error)
+{
+   if (cqp->dev->is_pf) {
+   *val = i40iw_rd32(cqp->dev->hw, I40E_PFPE_CQPTAIL);
+   *tail = RS_32(*val, I40E_PFPE_CQPTAIL_WQTAIL);
+   *error = RS_32(*val, I40E_PFPE_CQPTAIL_CQP_OP_ERR);
+   } else {
+   *val = i40iw_rd32(cqp->dev->hw, I40E_VFPE_CQPTAIL1);
+   *tail = RS_32(*val, I40E_VFPE_CQPTAIL_WQTAIL);
+   *error = RS_32(*val, I40E_VFPE_CQPTAIL_CQP_OP_ERR);
+   }
+}
+
+/**
+ * i40iw_cqp_poll_registers - poll cqp registers
+ * @cqp: struct for cqp hw
+ * @tail:wqtail register value
+ * @count: how many times to try for completion
+ */
+static enum i40iw_status_code i40iw_cqp_poll_registers(
+   struct i40iw_sc_cqp *cqp,
+   u32 tail,
+   u32 count)
+{
+   u32 i = 0;
+   u32 newtail, error, val;
+
+   while (i < count) {
+   i++;
+   i40iw_get_cqp_reg_info(cqp, , , );
+   if (error) {
+   error = (cqp->dev->is_pf) ?
+i40iw_rd32(cqp->dev->hw, 
I40E_PFPE_CQPERRCODES) :
+i40iw_rd32(cqp->dev->hw, 
I40E_VFPE_CQPERRCODES1);
+   return I40IW_ERR_CQP_COMPL_ERROR;
+   }
+   if (newtail != tail) {
+   /* SUCCESS */
+   I40IW_RING_MOVE_TAIL(cqp->sq_ring);
+   return 0;
+   }
+   udelay(I40IW_SLEEP_COUNT);
+   }
+   return I40IW_ERR_TIMEOUT;
+}
+
+/**
+ * 

[PATCH V1 10/16] i40iw: add hardware related header files

[Faisal Latif]

header files for hardware accesses

Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_d.h| 1713 ++
 drivers/infiniband/hw/i40iw/i40iw_p.h|  106 ++
 drivers/infiniband/hw/i40iw/i40iw_type.h | 1307 +++
 3 files changed, 3126 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_d.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_p.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_type.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_d.h 
b/drivers/infiniband/hw/i40iw/i40iw_d.h
new file mode 100644
index 000..f6668d7
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_d.h
@@ -0,0 +1,1713 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#ifndef I40IW_D_H
+#define I40IW_D_H
+
+#define I40IW_DB_ADDR_OFFSET(4 * 1024 * 1024 - 64 * 1024)
+#define I40IW_VF_DB_ADDR_OFFSET (64 * 1024)
+
+#define I40IW_PUSH_OFFSET   (4 * 1024 * 1024)
+#define I40IW_PF_FIRST_PUSH_PAGE_INDEX 16
+#define I40IW_VF_PUSH_OFFSET((8 + 64) * 1024)
+#define I40IW_VF_FIRST_PUSH_PAGE_INDEX 2
+
+#define I40IW_PE_DB_SIZE_4M 1
+#define I40IW_PE_DB_SIZE_8M 2
+
+#define I40IW_DDP_VER 1
+#define I40IW_RDMAP_VER 1
+
+#define I40IW_RDMA_MODE_RDMAC 0
+#define I40IW_RDMA_MODE_IETF  1
+
+#define I40IW_QP_STATE_INVALID 0
+#define I40IW_QP_STATE_IDLE 1
+#define I40IW_QP_STATE_RTS 2
+#define I40IW_QP_STATE_CLOSING 3
+#define I40IW_QP_STATE_RESERVED 4
+#define I40IW_QP_STATE_TERMINATE 5
+#define I40IW_QP_STATE_ERROR 6
+
+#define I40IW_STAG_STATE_INVALID 0
+#define I40IW_STAG_STATE_VALID 1
+
+#define I40IW_STAG_TYPE_SHARED 0
+#define I40IW_STAG_TYPE_NONSHARED 1
+
+#define I40IW_MAX_USER_PRIORITY 8
+
+#define LS_64_1(val, bits)  ((u64)(uintptr_t)val << bits)
+#define RS_64_1(val, bits)  ((u64)(uintptr_t)val >> bits)
+#define LS_32_1(val, bits)  (u32)(val << bits)
+#define RS_32_1(val, bits)  (u32)(val >> bits)
+#define I40E_HI_DWORD(x)((u32)x) >> 16) >> 16) & 0x))
+
+#define LS_64(val, field) (((u64)val << field ## _SHIFT) & (field ## _MASK))
+
+#define RS_64(val, field) ((u64)(u64)(val & field ## _MASK) >> field ## _SHIFT)
+#define LS_32(val, field) ((val << field ## _SHIFT) & (field ## _MASK))
+#define RS_32(val, field) ((val & field ## _MASK) >> field ## _SHIFT)
+
+#define TERM_DDP_LEN_TAGGED 14
+#define TERM_DDP_LEN_UNTAGGED   18
+#define TERM_RDMA_LEN   28
+#define RDMA_OPCODE_MASK0x0f
+#define RDMA_READ_REQ_OPCODE1
+#define Q2_BAD_FRAME_OFFSET 72
+#define CQE_MAJOR_DRV   0x8000
+
+#define I40IW_TERM_SENT 0x01
+#define I40IW_TERM_RCVD 0x02
+#define I40IW_TERM_DONE 0x04
+#define I40IW_MAC_HLEN  14
+
+#define I40IW_INVALID_WQE_INDEX 0x
+
+#define I40IW_CQP_WAIT_POLL_REGS 1
+#define I40IW_CQP_WAIT_POLL_CQ 2
+#define I40IW_CQP_WAIT_EVENT 3
+
+#define I40IW_CQP_INIT_WQE(wqe) memset(wqe, 0, 64)
+
+#define I40IW_GET_CURRENT_CQ_ELEMENT(_cq) \
+   ( \
+   &((_cq)->cq_base[I40IW_RING_GETCURRENT_HEAD((_cq)->cq_ring)])  \
+   )
+#define I40IW_GET_CURRENT_EXTENDED_CQ_ELEMENT(_cq) \
+   ( \
+   &(((struct i40iw_extended_cqe *)\
+  
((_cq)->cq_base))[I40IW_RING_GETCURRENT_HEAD((_cq)->cq_ring)]) \
+   )
+
+#define I40IW_GET_CURRENT_AEQ_ELEMENT(_aeq)

[PATCH V1 14/16] i40iw: Kconfig and Kbuild for iwarp module

[Faisal Latif]

Kconfig and Kbuild needed to build iwarp module.

Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/Kbuild  | 43 +
 drivers/infiniband/hw/i40iw/Kconfig |  7 ++
 2 files changed, 50 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/Kbuild
 create mode 100644 drivers/infiniband/hw/i40iw/Kconfig

diff --git a/drivers/infiniband/hw/i40iw/Kbuild 
b/drivers/infiniband/hw/i40iw/Kbuild
new file mode 100644
index 000..ba84a78
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/Kbuild
@@ -0,0 +1,43 @@
+
+#
+# * Copyright (c) 2015 Intel Corporation.  All rights reserved.
+# *
+# * This software is available to you under a choice of one of two
+# * licenses.  You may choose to be licensed under the terms of the GNU
+# * General Public License (GPL) Version 2, available from the file
+# * COPYING in the main directory of this source tree, or the
+# * OpenFabrics.org BSD license below:
+# *
+# *   Redistribution and use in source and binary forms, with or
+# *   without modification, are permitted provided that the following
+# *   conditions are met:
+# *
+# *- Redistributions of source code must retain the above
+# *copyright notice, this list of conditions and the following
+# *disclaimer.
+# *
+# *- Redistributions in binary form must reproduce the above
+# *copyright notice, this list of conditions and the following
+# *disclaimer in the documentation and/or other materials
+# *provided with the distribution.
+# *
+# * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# * SOFTWARE.
+#
+
+
+ccflags-y :=  -Idrivers/net/ethernet/intel/i40e
+
+obj-m += i40iw.o
+
+i40iw-objs :=\
+   i40iw_cm.o i40iw_ctrl.o \
+   i40iw_hmc.o i40iw_hw.o i40iw_main.o  \
+   i40iw_pble.o i40iw_puda.o i40iw_uk.o i40iw_utils.o \
+   i40iw_verbs.o i40iw_virtchnl.o i40iw_vf.o
diff --git a/drivers/infiniband/hw/i40iw/Kconfig 
b/drivers/infiniband/hw/i40iw/Kconfig
new file mode 100644
index 000..6e7d27a
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/Kconfig
@@ -0,0 +1,7 @@
+config INFINIBAND_I40IW
+   tristate "Intel(R) Ethernet X722 iWARP Driver"
+   depends on INET && I40E
+   select GENERIC_ALLOCATOR
+   ---help---
+   Intel(R) Ethernet X722 iWARP Driver
+   INET && I40IW && INFINIBAND && I40E
-- 
2.5.3

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[PATCH V1 11/16] i40iw: add X722 register file

[Faisal Latif]

X722 Hardware registers defines for iWARP component.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_register.h | 1027 ++
 1 file changed, 1027 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_register.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_register.h 
b/drivers/infiniband/hw/i40iw/i40iw_register.h
new file mode 100644
index 000..1bcac4f
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_register.h
@@ -0,0 +1,1027 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#ifndef I40IW_REGISTER_H
+#define I40IW_REGISTER_H
+
+#define I40E_GLGEN_STAT   0x000B612C /* Reset: POR */
+
+#define I40E_PFHMC_PDINV   0x000C0300 /* Reset: PFR */
+#define I40E_PFHMC_PDINV_PMSDIDX_SHIFT 0
+#define I40E_PFHMC_PDINV_PMSDIDX_MASK  (0xFFF <<  
I40E_PFHMC_PDINV_PMSDIDX_SHIFT)
+#define I40E_PFHMC_PDINV_PMPDIDX_SHIFT 16
+#define I40E_PFHMC_PDINV_PMPDIDX_MASK  (0x1FF <<  
I40E_PFHMC_PDINV_PMPDIDX_SHIFT)
+#define I40E_PFHMC_SDCMD_PMSDWR_SHIFT  31
+#define I40E_PFHMC_SDCMD_PMSDWR_MASK   (0x1 <<  I40E_PFHMC_SDCMD_PMSDWR_SHIFT)
+#define I40E_PFHMC_SDDATALOW_PMSDVALID_SHIFT   0
+#define I40E_PFHMC_SDDATALOW_PMSDVALID_MASK(0x1 <<  
I40E_PFHMC_SDDATALOW_PMSDVALID_SHIFT)
+#define I40E_PFHMC_SDDATALOW_PMSDTYPE_SHIFT1
+#define I40E_PFHMC_SDDATALOW_PMSDTYPE_MASK (0x1 <<  
I40E_PFHMC_SDDATALOW_PMSDTYPE_SHIFT)
+#define I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_SHIFT 2
+#define I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_MASK  (0x3FF <<  
I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_SHIFT)
+
+#define I40E_PFINT_DYN_CTLN(_INTPF) (0x00034800 + ((_INTPF) * 4)) /* 
_i=0...511 */ /* Reset: PFR */
+#define I40E_PFINT_DYN_CTLN_INTENA_SHIFT  0
+#define I40E_PFINT_DYN_CTLN_INTENA_MASK   (0x1 <<  
I40E_PFINT_DYN_CTLN_INTENA_SHIFT)
+#define I40E_PFINT_DYN_CTLN_CLEARPBA_SHIFT1
+#define I40E_PFINT_DYN_CTLN_CLEARPBA_MASK (0x1 <<  
I40E_PFINT_DYN_CTLN_CLEARPBA_SHIFT)
+#define I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT3
+#define I40E_PFINT_DYN_CTLN_ITR_INDX_MASK (0x3 <<  
I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT)
+
+#define I40E_VFINT_DYN_CTLN1(_INTVF)   (0x3800 + ((_INTVF) * 
4)) /* _i=0...15 */ /* Reset: VFR */
+#define I40E_GLHMC_VFPDINV(_i)   (0x000C8300 + ((_i) * 4)) /* 
_i=0...31 */ /* Reset: CORER */
+
+#define I40E_PFHMC_PDINV_PMSDPARTSEL_SHIFT 15
+#define I40E_PFHMC_PDINV_PMSDPARTSEL_MASK  (0x1 <<  
I40E_PFHMC_PDINV_PMSDPARTSEL_SHIFT)
+#define I40E_GLPCI_LBARCTRL0x000BE484 /* Reset: POR */
+#define I40E_GLPCI_LBARCTRL_PE_DB_SIZE_SHIFT4
+#define I40E_GLPCI_LBARCTRL_PE_DB_SIZE_MASK (0x3 <<  
I40E_GLPCI_LBARCTRL_PE_DB_SIZE_SHIFT)
+
+#define I40E_PFPE_AEQALLOC   0x00131180 /* Reset: PFR */
+#define I40E_PFPE_AEQALLOC_AECOUNT_SHIFT 0
+#define I40E_PFPE_AEQALLOC_AECOUNT_MASK  (0x <<  
I40E_PFPE_AEQALLOC_AECOUNT_SHIFT)
+#define I40E_PFPE_CCQPHIGH  0x8200 /* Reset: PFR */
+#define I40E_PFPE_CCQPHIGH_PECCQPHIGH_SHIFT 0
+#define I40E_PFPE_CCQPHIGH_PECCQPHIGH_MASK  (0x <<  
I40E_PFPE_CCQPHIGH_PECCQPHIGH_SHIFT)
+#define I40E_PFPE_CCQPLOW 0x8180 /* Reset: 

[PATCH 04/15] i40iw: add puda code

[Faisal Latif]

i40iw_puda.[ch] are files to handle iwarp connection packets as
well as exception packets over multiple privilege mode uda queues.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_puda.c | 1443 ++
 drivers/infiniband/hw/i40iw/i40iw_puda.h |  183 
 2 files changed, 1626 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_puda.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_puda.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_puda.c 
b/drivers/infiniband/hw/i40iw/i40iw_puda.c
new file mode 100644
index 000..8e628af
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_puda.c
@@ -0,0 +1,1443 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_osdep.h"
+#include "i40iw_register.h"
+#include "i40iw_status.h"
+#include "i40iw_hmc.h"
+
+#include "i40iw_d.h"
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+#include "i40iw_puda.h"
+
+static void i40iw_ieq_receive(struct i40iw_sc_dev *dev,
+ struct i40iw_puda_buf *buf);
+static void i40iw_ieq_tx_compl(struct i40iw_sc_dev *dev, void *sqwrid);
+static void i40iw_ilq_putback_rcvbuf(struct i40iw_sc_qp *qp, u32 wqe_idx);
+static enum i40iw_status_code i40iw_puda_replenish_rq(struct i40iw_puda_rsrc
+ *rsrc, bool initial);
+/**
+ * i40iw_puda_get_listbuf - get buffer from puda list
+ * @list: list to use for buffers (ILQ or IEQ)
+ */
+static struct i40iw_puda_buf *i40iw_puda_get_listbuf(struct list_head *list)
+{
+   struct i40iw_puda_buf *buf = NULL;
+
+   if (!list_empty(list)) {
+   buf = (struct i40iw_puda_buf *)list->next;
+   list_del((struct list_head *)>list);
+   }
+   return buf;
+}
+
+/**
+ * i40iw_puda_get_bufpool - return buffer from resource
+ * @rsrc: resource to use for buffer
+ */
+struct i40iw_puda_buf *i40iw_puda_get_bufpool(struct i40iw_puda_rsrc *rsrc)
+{
+   struct i40iw_puda_buf *buf = NULL;
+   struct list_head *list = >bufpool;
+   unsigned long   flags;
+
+   spin_lock_irqsave(>bufpool_lock, flags);
+   buf = i40iw_puda_get_listbuf(list);
+   if (buf)
+   rsrc->avail_buf_count--;
+   else
+   rsrc->stats_buf_alloc_fail++;
+   spin_unlock_irqrestore(>bufpool_lock, flags);
+   return buf;
+}
+
+/**
+ * i40iw_puda_ret_bufpool - return buffer to rsrc list
+ * @rsrc: resource to use for buffer
+ * @buf: buffe to return to resouce
+ */
+void i40iw_puda_ret_bufpool(struct i40iw_puda_rsrc *rsrc,
+   struct i40iw_puda_buf *buf)
+{
+   unsigned long   flags;
+
+   spin_lock_irqsave(>bufpool_lock, flags);
+   list_add(>list, >bufpool);
+   spin_unlock_irqrestore(>bufpool_lock, flags);
+   rsrc->avail_buf_count++;
+}
+
+/**
+ * i40iw_puda_post_recvbuf - set wqe for rcv buffer
+ * @rsrc: resource ptr
+ * @wqe_idx: wqe index to use
+ * @buf: puda buffer for rcv q
+ * @initial: flag if during init time
+ */
+static void i40iw_puda_post_recvbuf(struct i40iw_puda_rsrc *rsrc, u32 wqe_idx,
+   struct i40iw_puda_buf *buf, bool initial)

[PATCH 11/15] i40iw: add X722 register file

[Faisal Latif]

X722 Hardware registers defines for iWARP component.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_register.h | 1027 ++
 1 file changed, 1027 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_register.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_register.h 
b/drivers/infiniband/hw/i40iw/i40iw_register.h
new file mode 100644
index 000..01da7c5
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_register.h
@@ -0,0 +1,1027 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#ifndef I40IW_REGISTER_H
+#define I40IW_REGISTER_H
+
+#define I40E_GLGEN_STAT   0x000B612C /* Reset: POR */
+
+#define I40E_PFHMC_PDINV   0x000C0300 /* Reset: PFR */
+#define I40E_PFHMC_PDINV_PMSDIDX_SHIFT 0
+#define I40E_PFHMC_PDINV_PMSDIDX_MASK  I40E_MASK(0xFFF, 
I40E_PFHMC_PDINV_PMSDIDX_SHIFT)
+#define I40E_PFHMC_PDINV_PMPDIDX_SHIFT 16
+#define I40E_PFHMC_PDINV_PMPDIDX_MASK  I40E_MASK(0x1FF, 
I40E_PFHMC_PDINV_PMPDIDX_SHIFT)
+#define I40E_PFHMC_SDCMD_PMSDWR_SHIFT  31
+#define I40E_PFHMC_SDCMD_PMSDWR_MASK   I40E_MASK(0x1, 
I40E_PFHMC_SDCMD_PMSDWR_SHIFT)
+#define I40E_PFHMC_SDDATALOW_PMSDVALID_SHIFT   0
+#define I40E_PFHMC_SDDATALOW_PMSDVALID_MASKI40E_MASK(0x1, 
I40E_PFHMC_SDDATALOW_PMSDVALID_SHIFT)
+#define I40E_PFHMC_SDDATALOW_PMSDTYPE_SHIFT1
+#define I40E_PFHMC_SDDATALOW_PMSDTYPE_MASK I40E_MASK(0x1, 
I40E_PFHMC_SDDATALOW_PMSDTYPE_SHIFT)
+#define I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_SHIFT 2
+#define I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_MASK  I40E_MASK(0x3FF, 
I40E_PFHMC_SDDATALOW_PMSDBPCOUNT_SHIFT)
+
+#define I40E_PFINT_DYN_CTLN(_INTPF) (0x00034800 + ((_INTPF) * 4)) /* 
_i=0...511 */ /* Reset: PFR */
+#define I40E_PFINT_DYN_CTLN_INTENA_SHIFT  0
+#define I40E_PFINT_DYN_CTLN_INTENA_MASK   I40E_MASK(0x1, 
I40E_PFINT_DYN_CTLN_INTENA_SHIFT)
+#define I40E_PFINT_DYN_CTLN_CLEARPBA_SHIFT1
+#define I40E_PFINT_DYN_CTLN_CLEARPBA_MASK I40E_MASK(0x1, 
I40E_PFINT_DYN_CTLN_CLEARPBA_SHIFT)
+#define I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT3
+#define I40E_PFINT_DYN_CTLN_ITR_INDX_MASK I40E_MASK(0x3, 
I40E_PFINT_DYN_CTLN_ITR_INDX_SHIFT)
+
+#define I40E_VFINT_DYN_CTLN1(_INTVF)   (0x3800 + ((_INTVF) * 
4)) /* _i=0...15 */ /* Reset: VFR */
+#define I40E_GLHMC_VFPDINV(_i)   (0x000C8300 + ((_i) * 4)) /* 
_i=0...31 */ /* Reset: CORER */
+
+#define I40E_PFHMC_PDINV_PMSDPARTSEL_SHIFT 15
+#define I40E_PFHMC_PDINV_PMSDPARTSEL_MASK  I40E_MASK(0x1, 
I40E_PFHMC_PDINV_PMSDPARTSEL_SHIFT)
+#define I40E_GLPCI_LBARCTRL0x000BE484 /* Reset: POR */
+#define I40E_GLPCI_LBARCTRL_PE_DB_SIZE_SHIFT4
+#define I40E_GLPCI_LBARCTRL_PE_DB_SIZE_MASK I40E_MASK(0x3, 
I40E_GLPCI_LBARCTRL_PE_DB_SIZE_SHIFT)
+
+#define I40E_PFPE_AEQALLOC   0x00131180 /* Reset: PFR */
+#define I40E_PFPE_AEQALLOC_AECOUNT_SHIFT 0
+#define I40E_PFPE_AEQALLOC_AECOUNT_MASK  I40E_MASK(0x, 
I40E_PFPE_AEQALLOC_AECOUNT_SHIFT)
+#define I40E_PFPE_CCQPHIGH  0x8200 /* Reset: PFR */
+#define I40E_PFPE_CCQPHIGH_PECCQPHIGH_SHIFT 0
+#define I40E_PFPE_CCQPHIGH_PECCQPHIGH_MASK  I40E_MASK(0x, 
I40E_PFPE_CCQPHIGH_PECCQPHIGH_SHIFT)
+#define I40E_PFPE_CCQPLOW 0x8180 /* Reset: PFR */
+#define I40E_PF

[PATCH 08/15] i40iw: add files for iwarp interface

[Faisal Latif]

i40iw_verbs.[ch] are to handle iwarp interface.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_ucontext.h |  110 ++
 drivers/infiniband/hw/i40iw/i40iw_verbs.c| 2492 ++
 drivers/infiniband/hw/i40iw/i40iw_verbs.h|  173 ++
 3 files changed, 2775 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_ucontext.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_verbs.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_verbs.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_ucontext.h 
b/drivers/infiniband/hw/i40iw/i40iw_ucontext.h
new file mode 100644
index 000..5c65c25
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_ucontext.h
@@ -0,0 +1,110 @@
+/*
+ * Copyright (c) 2006 - 2015 Intel Corporation.  All rights reserved.
+ * Copyright (c) 2005 Topspin Communications.  All rights reserved.
+ * Copyright (c) 2005 Cisco Systems.  All rights reserved.
+ * Copyright (c) 2005 Open Grid Computing, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses.  You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ *  - Redistributions of source code must retain the above
+ *copyright notice, this list of conditions and the following
+ *disclaimer.
+ *
+ *  - Redistributions in binary form must reproduce the above
+ *copyright notice, this list of conditions and the following
+ *disclaimer in the documentation and/or other materials
+ *provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#ifndef I40IW_USER_CONTEXT_H
+#define I40IW_USER_CONTEXT_H
+
+#include 
+
+#define I40IW_ABI_USERSPACE_VER 4
+#define I40IW_ABI_KERNEL_VER4
+struct i40iw_alloc_ucontext_req {
+   __u32 reserved32;
+   __u8 userspace_ver;
+   __u8 reserved8[3];
+};
+
+struct i40iw_alloc_ucontext_resp {
+   __u32 max_pds;  /* maximum pds allowed for this user process */
+   __u32 max_qps;  /* maximum qps allowed for this user process */
+   __u32 wq_size;  /* size of the WQs (sq+rq) allocated to the 
mmaped area */
+   __u8 kernel_ver;
+   __u8 reserved[3];
+};
+
+struct i40iw_alloc_pd_resp {
+   __u32 pd_id;
+   __u8 reserved[4];
+};
+
+struct i40iw_create_cq_req {
+   __u64 user_cq_buffer;
+   __u64 user_shadow_area;
+};
+
+struct i40iw_create_qp_req {
+   __u64 user_wqe_buffers;
+   __u64 user_compl_ctx;
+
+   /* UDA QP PHB */
+   __u64 user_sq_phb;  /* place for VA of the sq phb buff */
+   __u64 user_rq_phb;  /* place for VA of the rq phb buff */
+};
+
+enum i40iw_memreg_type {
+   IW_MEMREG_TYPE_MEM = 0x,
+   IW_MEMREG_TYPE_QP = 0x0001,
+   IW_MEMREG_TYPE_CQ = 0x0002,
+   IW_MEMREG_TYPE_MW = 0x0003,
+   IW_MEMREG_TYPE_FMR = 0x0004,
+   IW_MEMREG_TYPE_FMEM = 0x0005,
+};
+
+struct i40iw_mem_reg_req {
+   __u16 reg_type; /* Memory, QP or CQ */
+   __u16 cq_pages;
+   __u16 rq_pages;
+   __u16 sq_pages;
+};
+
+struct i40iw_create_cq_resp {
+   __u32 cq_id;
+   __u32 cq_size;
+   __u32 mmap_db_index;
+   __u32 reserved;
+};
+
+struct i40iw_create_qp_resp {
+   __u32 qp_id;
+   __u32 actual_sq_size;
+   __u32 actual_rq_size;
+   __u32 i40iw_drv_opt;
+   __u16 push_idx;
+   __u8  lsmm;
+   __u8  rsvd2;
+};
+
+#endif
diff --git a/drivers/infiniband/hw/i40iw/i40iw_verbs.c 
b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
new file mode 100644
index 000..9bdd95f
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_verbs.c
@@ -0,0 +1,2492 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main d

[PATCH 13/15] i40iw: virtual channel handling files

[Faisal Latif]

i40iw_vf.[ch] and i40iw_virtchnl[ch] are used for virtual
channel support for iWARP VF module.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_vf.c   |  85 +++
 drivers/infiniband/hw/i40iw/i40iw_vf.h   |  62 +++
 drivers/infiniband/hw/i40iw/i40iw_virtchnl.c | 750 +++
 drivers/infiniband/hw/i40iw/i40iw_virtchnl.h | 124 +
 4 files changed, 1021 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_vf.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_vf.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_virtchnl.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_virtchnl.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_vf.c 
b/drivers/infiniband/hw/i40iw/i40iw_vf.c
new file mode 100644
index 000..39bb0ca
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_vf.c
@@ -0,0 +1,85 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_osdep.h"
+#include "i40iw_register.h"
+#include "i40iw_status.h"
+#include "i40iw_hmc.h"
+#include "i40iw_d.h"
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+#include "i40iw_vf.h"
+
+/**
+ * i40iw_manage_vf_pble_bp - manage vf pble
+ * @cqp: cqp for cqp' sq wqe
+ * @info: pble info
+ * @scratch: pointer for completion
+ * @post_sq: to post and ring
+ */
+enum i40iw_status_code i40iw_manage_vf_pble_bp(struct i40iw_sc_cqp *cqp,
+  struct i40iw_manage_vf_pble_info 
*info,
+  u64 scratch,
+  bool post_sq)
+{
+   u64 *wqe;
+   u64 temp, header, pd_pl_pba = 0;
+
+   wqe = i40iw_sc_cqp_get_next_send_wqe(cqp, scratch);
+   if (!wqe)
+   return I40IW_ERR_RING_FULL;
+
+   temp = LS_64((info->pd_entry_cnt), I40IW_CQPSQ_MVPBP_PD_ENTRY_CNT) |
+   LS_64((info->first_pd_index), I40IW_CQPSQ_MVPBP_FIRST_PD_INX) |
+   LS_64((info->sd_index), I40IW_CQPSQ_MVPBP_SD_INX);
+   set_64bit_val(wqe, 16, temp);
+
+   header = LS_64((info->inv_pd_ent ? 1 : 0), 
I40IW_CQPSQ_MVPBP_INV_PD_ENT) |
+   LS_64(I40IW_CQP_OP_MANAGE_VF_PBLE_BP, I40IW_CQPSQ_OPCODE) |
+   LS_64(cqp->polarity, I40IW_CQPSQ_WQEVALID);
+   set_64bit_val(wqe, 24, header);
+
+   pd_pl_pba = LS_64(info->pd_pl_pba >> 3, I40IW_CQPSQ_MVPBP_PD_PLPBA);
+   set_64bit_val(wqe, 32, pd_pl_pba);
+
+   i40iw_debug_buf(cqp->dev, I40IW_DEBUG_WQE, "MANAGE VF_PBLE_BP WQE", 
wqe, I40IW_CQP_WQE_SIZE * 8);
+
+   if (post_sq)
+   i40iw_sc_cqp_post_sq(cqp);
+   return 0;
+}
+
+struct i40iw_vf_cqp_ops iw_vf_cqp_ops = {
+   i40iw_manage_vf_pble_bp
+};
diff --git a/drivers/infiniband/hw/i40iw/i40iw_vf.h 
b/drivers/infiniband/hw/i40iw/i40iw_vf.h
new file mode 100644
index 000..cfe112d
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_vf.h
@@ -0,0 +1,62 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* Ge

[PATCH 10/15] i40iw: add hardware related header files

[Faisal Latif]

header files for hardware accesses

Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_d.h| 1713 ++
 drivers/infiniband/hw/i40iw/i40iw_p.h|  106 ++
 drivers/infiniband/hw/i40iw/i40iw_type.h | 1308 +++
 3 files changed, 3127 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_d.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_p.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_type.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_d.h 
b/drivers/infiniband/hw/i40iw/i40iw_d.h
new file mode 100644
index 000..f6668d7
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_d.h
@@ -0,0 +1,1713 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#ifndef I40IW_D_H
+#define I40IW_D_H
+
+#define I40IW_DB_ADDR_OFFSET(4 * 1024 * 1024 - 64 * 1024)
+#define I40IW_VF_DB_ADDR_OFFSET (64 * 1024)
+
+#define I40IW_PUSH_OFFSET   (4 * 1024 * 1024)
+#define I40IW_PF_FIRST_PUSH_PAGE_INDEX 16
+#define I40IW_VF_PUSH_OFFSET((8 + 64) * 1024)
+#define I40IW_VF_FIRST_PUSH_PAGE_INDEX 2
+
+#define I40IW_PE_DB_SIZE_4M 1
+#define I40IW_PE_DB_SIZE_8M 2
+
+#define I40IW_DDP_VER 1
+#define I40IW_RDMAP_VER 1
+
+#define I40IW_RDMA_MODE_RDMAC 0
+#define I40IW_RDMA_MODE_IETF  1
+
+#define I40IW_QP_STATE_INVALID 0
+#define I40IW_QP_STATE_IDLE 1
+#define I40IW_QP_STATE_RTS 2
+#define I40IW_QP_STATE_CLOSING 3
+#define I40IW_QP_STATE_RESERVED 4
+#define I40IW_QP_STATE_TERMINATE 5
+#define I40IW_QP_STATE_ERROR 6
+
+#define I40IW_STAG_STATE_INVALID 0
+#define I40IW_STAG_STATE_VALID 1
+
+#define I40IW_STAG_TYPE_SHARED 0
+#define I40IW_STAG_TYPE_NONSHARED 1
+
+#define I40IW_MAX_USER_PRIORITY 8
+
+#define LS_64_1(val, bits)  ((u64)(uintptr_t)val << bits)
+#define RS_64_1(val, bits)  ((u64)(uintptr_t)val >> bits)
+#define LS_32_1(val, bits)  (u32)(val << bits)
+#define RS_32_1(val, bits)  (u32)(val >> bits)
+#define I40E_HI_DWORD(x)((u32)x) >> 16) >> 16) & 0x))
+
+#define LS_64(val, field) (((u64)val << field ## _SHIFT) & (field ## _MASK))
+
+#define RS_64(val, field) ((u64)(u64)(val & field ## _MASK) >> field ## _SHIFT)
+#define LS_32(val, field) ((val << field ## _SHIFT) & (field ## _MASK))
+#define RS_32(val, field) ((val & field ## _MASK) >> field ## _SHIFT)
+
+#define TERM_DDP_LEN_TAGGED 14
+#define TERM_DDP_LEN_UNTAGGED   18
+#define TERM_RDMA_LEN   28
+#define RDMA_OPCODE_MASK0x0f
+#define RDMA_READ_REQ_OPCODE1
+#define Q2_BAD_FRAME_OFFSET 72
+#define CQE_MAJOR_DRV   0x8000
+
+#define I40IW_TERM_SENT 0x01
+#define I40IW_TERM_RCVD 0x02
+#define I40IW_TERM_DONE 0x04
+#define I40IW_MAC_HLEN  14
+
+#define I40IW_INVALID_WQE_INDEX 0x
+
+#define I40IW_CQP_WAIT_POLL_REGS 1
+#define I40IW_CQP_WAIT_POLL_CQ 2
+#define I40IW_CQP_WAIT_EVENT 3
+
+#define I40IW_CQP_INIT_WQE(wqe) memset(wqe, 0, 64)
+
+#define I40IW_GET_CURRENT_CQ_ELEMENT(_cq) \
+   ( \
+   &((_cq)->cq_base[I40IW_RING_GETCURRENT_HEAD((_cq)->cq_ring)])  \
+   )
+#define I40IW_GET_CURRENT_EXTENDED_CQ_ELEMENT(_cq) \
+   ( \
+   &(((struct i40iw_extended_cqe *)\
+  
((_cq)->cq_base))[I40IW_RING_GETCURRENT_HEAD((_cq)->cq_ring)]) \
+   )
+
+#define I40IW_GET_CURRENT_AEQ_ELEMENT(_aeq)

[PATCH 14/15] i40iw: Kconfig and Kbuild for iwarp module

[Faisal Latif]

Kconfig and Kbuild needed to build iwarp module.

Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/Kbuild  | 43 +
 drivers/infiniband/hw/i40iw/Kconfig |  7 ++
 2 files changed, 50 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/Kbuild
 create mode 100644 drivers/infiniband/hw/i40iw/Kconfig

diff --git a/drivers/infiniband/hw/i40iw/Kbuild 
b/drivers/infiniband/hw/i40iw/Kbuild
new file mode 100644
index 000..ba84a78
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/Kbuild
@@ -0,0 +1,43 @@
+
+#
+# * Copyright (c) 2015 Intel Corporation.  All rights reserved.
+# *
+# * This software is available to you under a choice of one of two
+# * licenses.  You may choose to be licensed under the terms of the GNU
+# * General Public License (GPL) Version 2, available from the file
+# * COPYING in the main directory of this source tree, or the
+# * OpenFabrics.org BSD license below:
+# *
+# *   Redistribution and use in source and binary forms, with or
+# *   without modification, are permitted provided that the following
+# *   conditions are met:
+# *
+# *- Redistributions of source code must retain the above
+# *copyright notice, this list of conditions and the following
+# *disclaimer.
+# *
+# *- Redistributions in binary form must reproduce the above
+# *copyright notice, this list of conditions and the following
+# *disclaimer in the documentation and/or other materials
+# *provided with the distribution.
+# *
+# * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+# * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+# * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+# * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+# * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+# * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+# * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+# * SOFTWARE.
+#
+
+
+ccflags-y :=  -Idrivers/net/ethernet/intel/i40e
+
+obj-m += i40iw.o
+
+i40iw-objs :=\
+   i40iw_cm.o i40iw_ctrl.o \
+   i40iw_hmc.o i40iw_hw.o i40iw_main.o  \
+   i40iw_pble.o i40iw_puda.o i40iw_uk.o i40iw_utils.o \
+   i40iw_verbs.o i40iw_virtchnl.o i40iw_vf.o
diff --git a/drivers/infiniband/hw/i40iw/Kconfig 
b/drivers/infiniband/hw/i40iw/Kconfig
new file mode 100644
index 000..6e7d27a
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/Kconfig
@@ -0,0 +1,7 @@
+config INFINIBAND_I40IW
+   tristate "Intel(R) Ethernet X722 iWARP Driver"
+   depends on INET && I40E
+   select GENERIC_ALLOCATOR
+   ---help---
+   Intel(R) Ethernet X722 iWARP Driver
+   INET && I40IW && INFINIBAND && I40E
-- 
2.5.3

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[PATCH 02/15] i40iw: add main, hdr, status

[Faisal Latif]

i40iw_main.c contains routines for i40e <=> i40iw interface and setup.
i40iw.h is header file for main device data structures.
i40iw_status.h is for return status codes.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw.h|  573 +
 drivers/infiniband/hw/i40iw/i40iw_main.c   | 1905 
 drivers/infiniband/hw/i40iw/i40iw_status.h |  100 ++
 3 files changed, 2578 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_main.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_status.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw.h 
b/drivers/infiniband/hw/i40iw/i40iw.h
new file mode 100644
index 000..c048f06b
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw.h
@@ -0,0 +1,573 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#ifndef I40IW_IW_H
+#define I40IW_IW_H
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+#include "i40iw_status.h"
+#include "i40iw_osdep.h"
+#include "i40iw_d.h"
+#include "i40iw_hmc.h"
+
+#include 
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+#include "i40iw_ucontext.h"
+#include "i40iw_pble.h"
+#include "i40iw_verbs.h"
+#include "i40iw_cm.h"
+#include "i40iw_user.h"
+#include "i40iw_puda.h"
+
+#define I40IW_FW_VERSION  2
+#define I40IW_HW_VERSION  2
+
+#define I40IW_ARP_ADD 1
+#define I40IW_ARP_DELETE  2
+#define I40IW_ARP_RESOLVE 3
+
+#define I40IW_MACIP_ADD 1
+#define I40IW_MACIP_DELETE  2
+
+#define IW_CCQ_SIZE (I40IW_CQP_SW_SQSIZE_2048 + 1)
+#define IW_CEQ_SIZE 2048
+#define IW_AEQ_SIZE 2048
+
+#define RX_BUF_SIZE(1536 + 8)
+#define IW_REG0_SIZE   (4 * 1024)
+#define IW_TX_TIMEOUT  (6 * HZ)
+#define IW_FIRST_QPN   1
+#define IW_SW_CONTEXT_ALIGN1024
+
+#define MAX_DPC_ITERATIONS 128
+
+#define I40IW_EVENT_TIMEOUT10
+#define I40IW_VCHNL_EVENT_TIMEOUT  10
+
+#defineI40IW_NO_VLAN   0x
+#defineI40IW_NO_QSET   0x
+
+/* access to mcast filter list */
+#define IW_ADD_MCAST false
+#define IW_DEL_MCAST true
+
+#define I40IW_DRV_OPT_ENABLE_MPA_VER_0 0x0001
+#define I40IW_DRV_OPT_DISABLE_MPA_CRC  0x0002
+#define I40IW_DRV_OPT_DISABLE_FIRST_WRITE  0x0004
+#define I40IW_DRV_OPT_DISABLE_INTF 0x0008
+#define I40IW_DRV_OPT_ENABLE_MSI   0x0010
+#define I40IW_DRV_OPT_DUAL_LOGICAL_PORT0x0020
+#define I40IW_DRV_OPT_NO_INLINE_DATA   0x0080
+#define I40IW_DRV_OPT_DISABLE_INT_MOD  0x0100
+#define I40IW_DRV_OPT_DISABLE_VIRT_WQ  0x0200
+#define I40IW_DRV_OPT_ENABLE_PAU   0x0400
+#define I40IW_DRV_OPT_MCAST_LOGPORT_MAP0x0800
+
+#define IW_HMC_OBJ_TYPE_NUM ARRAY_SIZE(iw_hmc_obj_types)
+#define IW_CFG_FPM_QP_COUNT32768
+
+#define I40IW_MTU_TO_MSS   40
+#define I40IW_DEFAULT_MSS  1460
+
+struct i40iw_cqp_compl_info {
+ 

[PATCH 15/15] i40iw: changes for build of i40iw module

[Faisal Latif]

IAINTAINERS< Kconfig, Makefile and rdma_netlink.h to include
i40iw

Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 MAINTAINERS  | 10 ++
 drivers/infiniband/Kconfig   |  1 +
 drivers/infiniband/hw/Makefile   |  1 +
 include/uapi/rdma/rdma_netlink.h |  1 +
 4 files changed, 13 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 69c8a9c..fc0ee30 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5600,6 +5600,16 @@ F:   Documentation/networking/i40evf.txt
 F: drivers/net/ethernet/intel/
 F: drivers/net/ethernet/intel/*/
 
+INTEL RDMA RNIC DRIVER
+M:     Faisal Latif <faisal.la...@intel.com>
+R: Chien Tin Tung <chien.tin.t...@intel.com>
+R: Mustafa Ismail <mustafa.ism...@intel.com>
+R: Shiraz Saleem <shiraz.sal...@intel.com>
+R: Tatyana Nikolova <tatyana.e.nikol...@intel.com>
+L: linux-r...@vger.kernel.org
+S: Supported
+F: drivers/infiniband/hw/i40iw/
+
 INTEL-MID GPIO DRIVER
 M: David Cohen <david.a.co...@linux.intel.com>
 L: linux-g...@vger.kernel.org
diff --git a/drivers/infiniband/Kconfig b/drivers/infiniband/Kconfig
index aa26f3c..7ddd81f 100644
--- a/drivers/infiniband/Kconfig
+++ b/drivers/infiniband/Kconfig
@@ -58,6 +58,7 @@ source "drivers/infiniband/hw/mthca/Kconfig"
 source "drivers/infiniband/hw/qib/Kconfig"
 source "drivers/infiniband/hw/cxgb3/Kconfig"
 source "drivers/infiniband/hw/cxgb4/Kconfig"
+source "drivers/infiniband/hw/i40iw/Kconfig"
 source "drivers/infiniband/hw/mlx4/Kconfig"
 source "drivers/infiniband/hw/mlx5/Kconfig"
 source "drivers/infiniband/hw/nes/Kconfig"
diff --git a/drivers/infiniband/hw/Makefile b/drivers/infiniband/hw/Makefile
index aded2a5..c7ad0a4 100644
--- a/drivers/infiniband/hw/Makefile
+++ b/drivers/infiniband/hw/Makefile
@@ -2,6 +2,7 @@ obj-$(CONFIG_INFINIBAND_MTHCA)  += mthca/
 obj-$(CONFIG_INFINIBAND_QIB)   += qib/
 obj-$(CONFIG_INFINIBAND_CXGB3) += cxgb3/
 obj-$(CONFIG_INFINIBAND_CXGB4) += cxgb4/
+obj-$(CONFIG_INFINIBAND_I40IW) += i40iw/
 obj-$(CONFIG_MLX4_INFINIBAND)  += mlx4/
 obj-$(CONFIG_MLX5_INFINIBAND)  += mlx5/
 obj-$(CONFIG_INFINIBAND_NES)   += nes/
diff --git a/include/uapi/rdma/rdma_netlink.h b/include/uapi/rdma/rdma_netlink.h
index c19a5dc..56bafbe 100644
--- a/include/uapi/rdma/rdma_netlink.h
+++ b/include/uapi/rdma/rdma_netlink.h
@@ -5,6 +5,7 @@
 
 enum {
RDMA_NL_RDMA_CM = 1,
+   RDMA_NL_I40IW,
RDMA_NL_NES,
RDMA_NL_C4IW,
RDMA_NL_LS, /* RDMA Local Services */
-- 
2.5.3

--
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[PATCH 09/15] i40iw: add file to handle cqp calls

[Faisal Latif]

i40iw_ctrl.c provides for hardware wqe supporti and cqp.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_ctrl.c | 4774 ++
 1 file changed, 4774 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_ctrl.c

diff --git a/drivers/infiniband/hw/i40iw/i40iw_ctrl.c 
b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
new file mode 100644
index 000..d0f2a23
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_ctrl.c
@@ -0,0 +1,4774 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_osdep.h"
+#include "i40iw_register.h"
+#include "i40iw_status.h"
+#include "i40iw_hmc.h"
+
+#include "i40iw_d.h"
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+#include "i40iw_vf.h"
+#include "i40iw_virtchnl.h"
+
+/**
+ * i40iw_insert_wqe_hdr - write wqe header
+ * @wqe: cqp wqe for header
+ * @header: header for the cqp wqe
+ */
+static inline void i40iw_insert_wqe_hdr(u64 *wqe, u64 header)
+{
+   wmb();/* make sure WQE is populated before valid bit is set 
*/
+   set_64bit_val(wqe, 24, header);
+}
+
+/**
+ * i40iw_get_cqp_reg_info - get head and tail for cqp using registers
+ * @cqp: struct for cqp hw
+ * @val: cqp tail register value
+ * @tail:wqtail register value
+ * @error: cqp processing err
+ */
+static inline void i40iw_get_cqp_reg_info(struct i40iw_sc_cqp *cqp,
+ u32 *val,
+ u32 *tail,
+ u32 *error)
+{
+   if (cqp->dev->is_pf) {
+   *val = rd32(cqp->dev->hw, I40E_PFPE_CQPTAIL);
+   *tail = RS_32(*val, I40E_PFPE_CQPTAIL_WQTAIL);
+   *error = RS_32(*val, I40E_PFPE_CQPTAIL_CQP_OP_ERR);
+   } else {
+   *val = rd32(cqp->dev->hw, I40E_VFPE_CQPTAIL1);
+   *tail = RS_32(*val, I40E_VFPE_CQPTAIL_WQTAIL);
+   *error = RS_32(*val, I40E_VFPE_CQPTAIL_CQP_OP_ERR);
+   }
+}
+
+/**
+ * i40iw_cqp_poll_registers - poll cqp registers
+ * @cqp: struct for cqp hw
+ * @tail:wqtail register value
+ * @count: how many times to try for completion
+ */
+static enum i40iw_status_code i40iw_cqp_poll_registers(
+   struct i40iw_sc_cqp *cqp,
+   u32 tail,
+   u32 count)
+{
+   u32 i = 0;
+   u32 newtail, error, val;
+
+   while (i < count) {
+   i++;
+   i40iw_get_cqp_reg_info(cqp, , , );
+   if (error) {
+   error = (cqp->dev->is_pf) ?
+rd32(cqp->dev->hw, I40E_PFPE_CQPERRCODES) :
+rd32(cqp->dev->hw, I40E_VFPE_CQPERRCODES1);
+   return I40IW_ERR_CQP_COMPL_ERROR;
+   }
+   if (newtail != tail) {
+   /* SUCCESS */
+   I40IW_RING_MOVE_TAIL(cqp->sq_ring);
+   return 0;
+   }
+   udelay(I40IW_SLEEP_COUNT);
+   }
+   return I40IW_ERR_TIMEOUT;
+}
+
+/**
+ * i40iw_sc_parse_fpm_commit

[PATCH 07/15] i40iw: add hw and utils files

[Faisal Latif]

i40iw_hw.c, i40iw_utils.c and i40iw_osdep.h are files to handle
interrupts and processing.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_hw.c|  705 +
 drivers/infiniband/hw/i40iw/i40iw_osdep.h |  235 ++
 drivers/infiniband/hw/i40iw/i40iw_utils.c | 1233 +
 3 files changed, 2173 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_hw.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_osdep.h
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_utils.c

diff --git a/drivers/infiniband/hw/i40iw/i40iw_hw.c 
b/drivers/infiniband/hw/i40iw/i40iw_hw.c
new file mode 100644
index 000..13d0d9e
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_hw.c
@@ -0,0 +1,705 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+#include "i40iw.h"
+
+/**
+ * i40iw_initialize_hw_resources - initialize hw resource during open
+ * @iwdev: iwarp device
+ */
+u32 i40iw_initialize_hw_resources(struct i40iw_device *iwdev)
+{
+   unsigned long num_pds;
+   u32 resources_size;
+   u32 max_mr;
+   u32 max_qp;
+   u32 max_cq;
+   u32 arp_table_size;
+   u32 mrdrvbits;
+   void *resource_ptr;
+
+   max_qp = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_QP].cnt;
+   max_cq = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_CQ].cnt;
+   max_mr = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_MR].cnt;
+   arp_table_size = iwdev->sc_dev.hmc_info->hmc_obj[I40IW_HMC_IW_ARP].cnt;
+   iwdev->max_cqe = 0xF;
+   num_pds = max_qp * 4;
+   resources_size = sizeof(struct i40iw_arp_entry) * arp_table_size;
+   resources_size += sizeof(unsigned long) * BITS_TO_LONGS(max_qp);
+   resources_size += sizeof(unsigned long) * BITS_TO_LONGS(max_mr);
+   resources_size += sizeof(unsigned long) * BITS_TO_LONGS(max_cq);
+   resources_size += sizeof(unsigned long) * BITS_TO_LONGS(num_pds);
+   resources_size += sizeof(unsigned long) * BITS_TO_LONGS(arp_table_size);
+   resources_size += sizeof(struct i40iw_qp **) * max_qp;
+   iwdev->mem_resources = kzalloc(resources_size, GFP_KERNEL);
+
+   if (!iwdev->mem_resources)
+   return -ENOMEM;
+
+   iwdev->max_qp = max_qp;
+   iwdev->max_mr = max_mr;
+   iwdev->max_cq = max_cq;
+   iwdev->max_pd = num_pds;
+   iwdev->arp_table_size = arp_table_size;
+   iwdev->arp_table = (struct i40iw_arp_entry *)iwdev->mem_resources;
+   resource_ptr = iwdev->mem_resources + (sizeof(struct i40iw_arp_entry) * 
arp_table_size);
+
+   iwdev->device_cap_flags = IB_DEVICE_LOCAL_DMA_LKEY |
+   IB_DEVICE_MEM_WINDOW | IB_DEVICE_MEM_MGT_EXTENSIONS;
+
+   iwdev->allocated_qps = resource_ptr;
+   iwdev->allocated_cqs = >allocated_qps[BITS_TO_LONGS(max_qp)];
+   iwdev->allocated_mrs = >allocated_cqs[BITS_TO_LONGS(max_cq)];
+   iwdev->allocated_pds = >allocated_mrs[BITS_TO_LONGS(max_mr)];
+   iwdev->allocated_arps = >allocated_pds[BITS_TO_LONGS(num_pds)];
+   iwdev->qp_table = (struct i40iw_qp 
**)(>allocated_arps[BITS_TO_LONGS(arp_table_s

[PATCH 03/15] i40iw: add connection management code

[Faisal Latif]

i40iw_cm.c i40iw_cm.h are used for connection management.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_cm.c | 4447 
 drivers/infiniband/hw/i40iw/i40iw_cm.h |  456 
 2 files changed, 4903 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_cm.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_cm.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_cm.c 
b/drivers/infiniband/hw/i40iw/i40iw_cm.c
new file mode 100644
index 000..aa6263f
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_cm.c
@@ -0,0 +1,4447 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+#include 
+
+#include "i40iw.h"
+
+static void i40iw_rem_ref_cm_node(struct i40iw_cm_node *);
+static void i40iw_cm_post_event(struct i40iw_cm_event *event);
+static void i40iw_disconnect_worker(struct work_struct *work);
+
+/**
+ * i40iw_free_sqbuf - put back puda buffer if refcount = 0
+ * @dev: FPK device
+ * @buf: puda buffer to free
+ */
+void i40iw_free_sqbuf(struct i40iw_sc_dev *dev, void *bufp)
+{
+   struct i40iw_puda_buf *buf = (struct i40iw_puda_buf *)bufp;
+   struct i40iw_puda_rsrc *ilq = dev->ilq;
+
+   if (!atomic_dec_return(>refcount))
+   i40iw_puda_ret_bufpool(ilq, buf);
+}
+
+/**
+ * i40iw_derive_hw_ird_setting - Calculate IRD
+ *
+ * @cm_ird: IRD of connection's node
+ *
+ * The ird from the connection is rounded to a supported HW
+ * setting (2,8,32,64) and then encoded for ird_size field of
+ * qp_ctx
+ */
+static u8 i40iw_derive_hw_ird_setting(u16 cm_ird)
+{
+   u8 encoded_ird_size = 0;
+   u8 pof2_cm_ird = 1;
+
+   /* round-off to next powerof2 */
+   while (pof2_cm_ird < cm_ird)
+   pof2_cm_ird *= 2;
+
+   /* ird_size field is encoded in qp_ctx */
+   switch (pof2_cm_ird) {
+   case I40IW_HW_IRD_SETTING_64:
+   encoded_ird_size = 3;
+   break;
+   case I40IW_HW_IRD_SETTING_32:
+   case I40IW_HW_IRD_SETTING_16:
+   encoded_ird_size = 2;
+   break;
+   case I40IW_HW_IRD_SETTING_8:
+   case I40IW_HW_IRD_SETTING_4:
+   encoded_ird_size = 1;
+   break;
+   case I40IW_HW_IRD_SETTING_2:
+   default:
+   encoded_ird_size = 0;
+   break;
+   }
+   return encoded_ird_size;
+}
+
+/**
+ * i40iw_record_ird_ord - Record IRD/ORD passed in
+ * @cm_node: connection's node
+ * @conn_ird: connection IRD
+ * @conn_ord: connection ORD
+ */
+static void i40iw_record_ird_ord(struct i40iw_cm_node *cm_node, u16 conn_ird, 
u16 conn_ord)
+{
+   if (conn_ird > I40IW_MAX_IRD_SIZE)
+   conn_ird = I40IW_MAX_IRD_SIZE;
+
+   if (conn_ord > I40IW_MAX_ORD_SIZE)
+   conn_ord = I40IW_MAX_ORD_SIZE;
+
+   cm_node->ird_size = conn_ird;
+   cm_node->ord_size = conn_ord;
+}
+
+/**
+ * i40iw_copy_ip_ntohl - change network to host ip
+ * @dst: host ip
+ * @src: big endian
+ */
+void i40iw_cop

[PATCH 06/15] i40iw: add hmc resource files

[Faisal Latif]

i40iw_hmc.[ch] are to manage hmc for the device.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_hmc.c | 823 
 drivers/infiniband/hw/i40iw/i40iw_hmc.h | 241 ++
 2 files changed, 1064 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_hmc.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_hmc.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_hmc.c 
b/drivers/infiniband/hw/i40iw/i40iw_hmc.c
new file mode 100644
index 000..f4f4055
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_hmc.c
@@ -0,0 +1,823 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_osdep.h"
+#include "i40iw_register.h"
+#include "i40iw_status.h"
+#include "i40iw_hmc.h"
+#include "i40iw_d.h"
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+#include "i40iw_vf.h"
+#include "i40iw_virtchnl.h"
+
+/**
+ * i40iw_find_sd_index_limit - finds segment descriptor index limit
+ * @hmc_info: pointer to the HMC configuration information structure
+ * @type: type of HMC resources we're searching
+ * @index: starting index for the object
+ * @cnt: number of objects we're trying to create
+ * @sd_idx: pointer to return index of the segment descriptor in question
+ * @sd_limit: pointer to return the maximum number of segment descriptors
+ *
+ * This function calculates the segment descriptor index and index limit
+ * for the resource defined by i40iw_hmc_rsrc_type.
+ */
+
+static inline void i40iw_find_sd_index_limit(struct i40iw_hmc_info *hmc_info,
+u32 type,
+u32 idx,
+u32 cnt,
+u32 *sd_idx,
+u32 *sd_limit)
+{
+   u64 fpm_addr, fpm_limit;
+
+   fpm_addr = hmc_info->hmc_obj[(type)].base +
+   hmc_info->hmc_obj[type].size * idx;
+   fpm_limit = fpm_addr + hmc_info->hmc_obj[type].size * cnt;
+   *sd_idx = (u32)(fpm_addr / I40IW_HMC_DIRECT_BP_SIZE);
+   *sd_limit = (u32)((fpm_limit - 1) / I40IW_HMC_DIRECT_BP_SIZE);
+   *sd_limit += 1;
+}
+
+/**
+ * i40iw_find_pd_index_limit - finds page descriptor index limit
+ * @hmc_info: pointer to the HMC configuration information struct
+ * @type: HMC resource type we're examining
+ * @idx: starting index for the object
+ * @cnt: number of objects we're trying to create
+ * @pd_index: pointer to return page descriptor index
+ * @pd_limit: pointer to return page descriptor index limit
+ *
+ * Calculates the page descriptor index and index limit for the resource
+ * defined by i40iw_hmc_rsrc_type.
+ */
+
+static inline void i40iw_find_pd_index_limit(struct i40iw_hmc_info *hmc_info,
+u32 type,
+u32 idx,
+u32 cnt,
+u32 *pd_idx,
+u32 *pd_limit)
+{
+   u64 fpm_adr, fpm_limit;
+
+   fpm_adr = hmc_info->hmc_obj[type].base +
+   hmc_info-&g

[PATCH 05/15] i40iw: add pble resource files

[Faisal Latif]

i40iw_pble.[ch] to manage pble resource for iwarp clients.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_pble.c | 618 +++
 drivers/infiniband/hw/i40iw/i40iw_pble.h | 131 +++
 2 files changed, 749 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_pble.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_pble.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_pble.c 
b/drivers/infiniband/hw/i40iw/i40iw_pble.c
new file mode 100644
index 000..217997e
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_pble.c
@@ -0,0 +1,618 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_status.h"
+#include "i40iw_osdep.h"
+#include "i40iw_register.h"
+#include "i40iw_hmc.h"
+
+#include "i40iw_d.h"
+#include "i40iw_type.h"
+#include "i40iw_p.h"
+
+#include 
+#include 
+#include 
+#include "i40iw_pble.h"
+#include "i40iw.h"
+
+struct i40iw_device;
+static enum i40iw_status_code add_pble_pool(struct i40iw_sc_dev *dev,
+   struct i40iw_hmc_pble_rsrc 
*pble_rsrc);
+static void i40iw_free_vmalloc_mem(struct i40iw_hw *hw, struct i40iw_chunk 
*chunk);
+
+/**
+ * i40iw_destroy_pble_pool - destroy pool during module unload
+ * @pble_rsrc: pble resources
+ */
+void i40iw_destroy_pble_pool(struct i40iw_sc_dev *dev, struct 
i40iw_hmc_pble_rsrc *pble_rsrc)
+{
+   struct list_head *clist;
+   struct list_head *tlist;
+   struct i40iw_chunk *chunk;
+   struct i40iw_pble_pool *pinfo = _rsrc->pinfo;
+
+   if (pinfo->pool) {
+   list_for_each_safe(clist, tlist, >clist) {
+   chunk = list_entry(clist, struct i40iw_chunk, list);
+   if (chunk->type == I40IW_VMALLOC)
+   i40iw_free_vmalloc_mem(dev->hw, chunk);
+   kfree(chunk);
+   }
+   gen_pool_destroy(pinfo->pool);
+   }
+}
+
+/**
+ * i40iw_hmc_init_pble - Initialize pble resources during module load
+ * @dev: i40iw_sc_dev struct
+ * @pble_rsrc: pble resources
+ */
+enum i40iw_status_code i40iw_hmc_init_pble(struct i40iw_sc_dev *dev,
+  struct i40iw_hmc_pble_rsrc 
*pble_rsrc)
+{
+   struct i40iw_hmc_info *hmc_info;
+   u32 fpm_idx = 0;
+
+   hmc_info = dev->hmc_info;
+   pble_rsrc->fpm_base_addr = hmc_info->hmc_obj[I40IW_HMC_IW_PBLE].base;
+   /* Now start the pble' on 4k boundary */
+   if (pble_rsrc->fpm_base_addr & 0xfff)
+   fpm_idx = (PAGE_SIZE - (pble_rsrc->fpm_base_addr & 0xfff)) >> 3;
+
+   pble_rsrc->unallocated_pble =
+   hmc_info->hmc_obj[I40IW_HMC_IW_PBLE].cnt - fpm_idx;
+   pble_rsrc->next_fpm_addr = pble_rsrc->fpm_base_addr + (fpm_idx << 3);
+
+   pble_rsrc->pinfo.pool_shift = POOL_SHIFT;
+   pble_rsrc->pinfo.pool = gen_pool_create(pble_rsrc->pinfo.pool_shift, 
-1);
+   INIT_LIST_HEAD(_rsrc->pinfo.clist);
+   if (!pble_rsrc->pinfo.pool)
+   goto error;
+
+   if (add_pble_pool(dev, pble_rsrc))
+   goto error;
+
+   retu

[PATCH 12/15] i40iw: user kernel shared files

[Faisal Latif]

i40iw_user.h and i40iw_uk.c are used by both user library as well as
kernel requests.

Acked-by: Anjali Singhai Jain <anjali.sing...@intel.com>
Acked-by: Shannon Nelson <shannon.nel...@intel.com>
Signed-off-by: Faisal Latif <faisal.la...@intel.com>
---
 drivers/infiniband/hw/i40iw/i40iw_uk.c   | 1213 ++
 drivers/infiniband/hw/i40iw/i40iw_user.h |  438 +++
 2 files changed, 1651 insertions(+)
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_uk.c
 create mode 100644 drivers/infiniband/hw/i40iw/i40iw_user.h

diff --git a/drivers/infiniband/hw/i40iw/i40iw_uk.c 
b/drivers/infiniband/hw/i40iw/i40iw_uk.c
new file mode 100644
index 000..d7ae9e6
--- /dev/null
+++ b/drivers/infiniband/hw/i40iw/i40iw_uk.c
@@ -0,0 +1,1213 @@
+/***
+*
+* Copyright (c) 2015 Intel Corporation.  All rights reserved.
+*
+* This software is available to you under a choice of one of two
+* licenses.  You may choose to be licensed under the terms of the GNU
+* General Public License (GPL) Version 2, available from the file
+* COPYING in the main directory of this source tree, or the
+* OpenFabrics.org BSD license below:
+*
+*   Redistribution and use in source and binary forms, with or
+*   without modification, are permitted provided that the following
+*   conditions are met:
+*
+*- Redistributions of source code must retain the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer.
+*
+*- Redistributions in binary form must reproduce the above
+*  copyright notice, this list of conditions and the following
+*  disclaimer in the documentation and/or other materials
+*  provided with the distribution.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+***/
+
+#include "i40iw_osdep.h"
+#include "i40iw_status.h"
+#include "i40iw_d.h"
+#include "i40iw_user.h"
+#include "i40iw_register.h"
+
+static u32 nop_signature = 0x;
+
+/**
+ * i40iw_nop_1 - insert a nop wqe and move head. no post work
+ * @qp: hw qp ptr
+ */
+static enum i40iw_status_code i40iw_nop_1(struct i40iw_qp_uk *qp)
+{
+   u64 header, *wqe;
+   u64 *wqe_0 = NULL;
+   u32 wqe_idx, peek_head;
+   bool signaled = false;
+
+   if (!qp->sq_ring.head)
+   return I40IW_ERR_PARAM;
+
+   wqe_idx = I40IW_RING_GETCURRENT_HEAD(qp->sq_ring);
+   wqe = >sq_base[wqe_idx << 2];
+   peek_head = (qp->sq_ring.head + 1) % qp->sq_ring.size;
+   wqe_0 = >sq_base[peek_head << 2];
+   if (peek_head)
+   wqe_0[3] = LS_64(!qp->swqe_polarity, I40IWQPSQ_VALID);
+   else
+   wqe_0[3] = LS_64(qp->swqe_polarity, I40IWQPSQ_VALID);
+
+   set_64bit_val(wqe, 0, 0);
+   set_64bit_val(wqe, 8, 0);
+   set_64bit_val(wqe, 16, 0);
+
+   header = LS_64(I40IWQP_OP_NOP, I40IWQPSQ_OPCODE) |
+   LS_64(signaled, I40IWQPSQ_SIGCOMPL) |
+   LS_64(qp->swqe_polarity, I40IWQPSQ_VALID) | nop_signature++;
+
+   wmb();  /* Memory barrier to ensure data is written before valid bit is 
set */
+
+   set_64bit_val(wqe, 24, header);
+   return 0;
+}
+
+/**
+ * i40iw_qp_post_wr - post wr to hrdware
+ * @qp: hw qp ptr
+ */
+void i40iw_qp_post_wr(struct i40iw_qp_uk *qp)
+{
+   u64 temp;
+   u32 hw_sq_tail;
+   u32 sw_sq_head;
+
+   wmb(); /* make sure valid bit is written */
+
+   /* read the doorbell shadow area */
+   get_64bit_val(qp->shadow_area, 0, );
+
+   rmb(); /* make sure read is finished */
+
+   hw_sq_tail = (u32)RS_64(temp, I40IW_QP_DBSA_HW_SQ_TAIL);
+   sw_sq_head = I40IW_RING_GETCURRENT_HEAD(qp->sq_ring);
+   if (sw_sq_head != hw_sq_tail) {
+   if (sw_sq_head > qp->initial_ring.head) {
+   if ((hw_sq_tail >= qp->initial_ring.head) &&
+   (hw_sq_tail < sw_sq_head)) {
+   db_wr32(qp->wqe_alloc_reg, qp->qp_id);
+   }
+   } else if (sw_sq_head != qp->initial_ring.head) {
+   if ((hw_sq_tail >= qp->initial_ring.head) ||
+   (hw_sq_tail < sw_sq_head)) {
+   db_wr32(qp->wqe_alloc_reg, qp->qp_id);
+   }
+   

[PATCH 01/15] i40e: Add support for client interface for IWARP driver

[Faisal Latif]

From: Anjali Singhai Jain 

This patch adds a Client interface for i40iw driver
support. Also expands the Virtchannel to support messages
from i40evf driver on behalf of i40iwvf driver.

This client API is used by the i40iw and i40iwvf driver
to access the core driver resources brokered by the i40e driver.

Signed-off-by: Anjali Singhai Jain 
---
 drivers/net/ethernet/intel/i40e/Makefile   |1 +
 drivers/net/ethernet/intel/i40e/i40e.h |   22 +
 drivers/net/ethernet/intel/i40e/i40e_client.c  | 1012 
 drivers/net/ethernet/intel/i40e/i40e_client.h  |  232 +
 drivers/net/ethernet/intel/i40e/i40e_main.c|  115 ++-
 drivers/net/ethernet/intel/i40e/i40e_type.h|3 +-
 drivers/net/ethernet/intel/i40e/i40e_virtchnl.h|   34 +
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c |  247 -
 drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.h |4 +
 9 files changed, 1657 insertions(+), 13 deletions(-)
 create mode 100644 drivers/net/ethernet/intel/i40e/i40e_client.c
 create mode 100644 drivers/net/ethernet/intel/i40e/i40e_client.h

diff --git a/drivers/net/ethernet/intel/i40e/Makefile 
b/drivers/net/ethernet/intel/i40e/Makefile
index b4729ba..3b3c63e 100644
--- a/drivers/net/ethernet/intel/i40e/Makefile
+++ b/drivers/net/ethernet/intel/i40e/Makefile
@@ -41,6 +41,7 @@ i40e-objs := i40e_main.o \
i40e_diag.o \
i40e_txrx.o \
i40e_ptp.o  \
+   i40e_client.o   \
i40e_virtchnl_pf.o
 
 i40e-$(CONFIG_I40E_DCB) += i40e_dcb.o i40e_dcb_nl.o
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h 
b/drivers/net/ethernet/intel/i40e/i40e.h
index 4dd3e26..1417ae8 100644
--- a/drivers/net/ethernet/intel/i40e/i40e.h
+++ b/drivers/net/ethernet/intel/i40e/i40e.h
@@ -59,6 +59,7 @@
 #ifdef I40E_FCOE
 #include "i40e_fcoe.h"
 #endif
+#include "i40e_client.h"
 #include "i40e_virtchnl.h"
 #include "i40e_virtchnl_pf.h"
 #include "i40e_txrx.h"
@@ -178,6 +179,7 @@ struct i40e_lump_tracking {
u16 search_hint;
u16 list[0];
 #define I40E_PILE_VALID_BIT  0x8000
+#define I40E_IWARP_IRQ_PILE_ID  (I40E_PILE_VALID_BIT - 2)
 };
 
 #define I40E_DEFAULT_ATR_SAMPLE_RATE   20
@@ -264,6 +266,8 @@ struct i40e_pf {
 #endif /* I40E_FCOE */
u16 num_lan_qps;   /* num lan queues this PF has set up */
u16 num_lan_msix;  /* num queue vectors for the base PF vsi */
+   u16 num_iwarp_msix;/* num of iwarp vectors for this PF */
+   int iwarp_base_vector;
int queues_left;   /* queues left unclaimed */
u16 rss_size;  /* num queues in the RSS array */
u16 rss_size_max;  /* HW defined max RSS queues */
@@ -313,6 +317,7 @@ struct i40e_pf {
 #define I40E_FLAG_16BYTE_RX_DESC_ENABLED   BIT_ULL(13)
 #define I40E_FLAG_CLEAN_ADMINQ BIT_ULL(14)
 #define I40E_FLAG_FILTER_SYNC  BIT_ULL(15)
+#define I40E_FLAG_SERVICE_CLIENT_REQUESTED BIT_ULL(16)
 #define I40E_FLAG_PROCESS_MDD_EVENTBIT_ULL(17)
 #define I40E_FLAG_PROCESS_VFLR_EVENT   BIT_ULL(18)
 #define I40E_FLAG_SRIOV_ENABLEDBIT_ULL(19)
@@ -550,6 +555,8 @@ struct i40e_vsi {
struct kobject *kobj;  /* sysfs object */
bool current_isup; /* Sync 'link up' logging */
 
+   void *priv; /* client driver data reference. */
+
/* VSI specific handlers */
irqreturn_t (*irq_handler)(int irq, void *data);
 
@@ -702,6 +709,10 @@ void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi,
  struct i40e_vsi_context *ctxt,
  u8 enabled_tc, bool is_add);
 #endif
+void i40e_service_event_schedule(struct i40e_pf *pf);
+void i40e_notify_client_of_vf_msg(struct i40e_vsi *vsi, u32 vf_id,
+ u8 *msg, u16 len);
+
 int i40e_vsi_control_rings(struct i40e_vsi *vsi, bool enable);
 int i40e_reconfig_rss_queues(struct i40e_pf *pf, int queue_count);
 struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags, u16 uplink_seid,
@@ -724,6 +735,17 @@ static inline void i40e_dbg_pf_exit(struct i40e_pf *pf) {}
 static inline void i40e_dbg_init(void) {}
 static inline void i40e_dbg_exit(void) {}
 #endif /* CONFIG_DEBUG_FS*/
+/* needed by client drivers */
+int i40e_lan_add_device(struct i40e_pf *pf);
+int i40e_lan_del_device(struct i40e_pf *pf);
+void i40e_client_subtask(struct i40e_pf *pf);
+void i40e_notify_client_of_l2_param_changes(struct i40e_vsi *vsi);
+void i40e_notify_client_of_netdev_open(struct i40e_vsi *vsi);
+void i40e_notify_client_of_netdev_close(struct i40e_vsi *vsi, bool reset);
+void i40e_notify_client_of_vf_enable(struct i40e_pf *pf, u32 num_vfs);
+void i40e_notify_client_of_vf_reset(struct i40e_pf *pf, u32 vf_id);
+int i40e_vf_client_capable(struct i40e_pf *pf, u32 vf_id,
+  enum i40e_client_type type);
 /**
  * i40e_irq_dynamic_enable - 

[PATCH 00/15] add Intel(R) X722 iWARP driver

[Faisal Latif]

This series contains the addition of the i40iw.ko driver.

This driver provides iWARP RDMA functionality for the Intel(R) X722
Ethernet controller for PCI Physical Functions. It also has support
for Virtual Function driver (i40iwvf.ko) that will be part of seperate
patch series.

It cooperates with the Intel(R) X722 base driver (i40e.ko) to allocate
resources and program the controller.

This series include 1 patch to i40e.ko to provide interface support
to i40iw.ko. The interface provides a driver registration mechanism,
resource allocations, and device reset coordination mechanisms.

This patch series is based on Doug Ledford's
/github.com/dledford/linux.git


Anjali Singhai Jain (1)
net/ethernet/intel/i40e: Add support for client interface for IWARP driver

Faisal Latif(14):
infiniband/hw/i40iw: add main, hdr, status
infiniband/hw/i40iw: add connection management code
infiniband/hw/i40iw: add puda code
infiniband/hw/i40iw: add pble resource files
infiniband/hw/i40iw: add hmc resource files
infiniband/hw/i40iw: add hw and utils files
infiniband/hw/i40iw: add files for iwarp interface
infiniband/hw/i40iw: add file to handle cqp calls
infiniband/hw/i40iw: add hardware related header files
infiniband/hw/i40iw: add X722 register file
infiniband/hw/i40iw: user kernel shared files
infiniband/hw/i40iw: virtual channel handling files
infiniband/hw/i40iw: Kconfig and Kbuild for iwarp module
infiniband/hw/i40iw: changes for build of i40iw module

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