[PATCH V5 net-next 1/2] qed: Add support for hardware offloaded FCoE.

2017-02-15 Thread Dupuis, Chad 
From: Arun Easi 

This adds the backbone required for the various HW initalizations
which are necessary for the FCoE driver (qedf) for QLogic FastLinQ
4 line of adapters - FW notification, resource initializations, etc.

Signed-off-by: Arun Easi 
Signed-off-by: Yuval Mintz 
---
 drivers/net/ethernet/qlogic/Kconfig   |3 +
 drivers/net/ethernet/qlogic/qed/Makefile  |1 +
 drivers/net/ethernet/qlogic/qed/qed.h |   11 +
 drivers/net/ethernet/qlogic/qed/qed_cxt.c |   98 +-
 drivers/net/ethernet/qlogic/qed/qed_cxt.h |3 +
 drivers/net/ethernet/qlogic/qed/qed_dcbx.c|   13 +-
 drivers/net/ethernet/qlogic/qed/qed_dcbx.h|5 +-
 drivers/net/ethernet/qlogic/qed/qed_dev.c |  205 -
 drivers/net/ethernet/qlogic/qed/qed_dev_api.h |   42 +
 drivers/net/ethernet/qlogic/qed/qed_fcoe.c| 1014 +
 drivers/net/ethernet/qlogic/qed/qed_fcoe.h|   87 ++
 drivers/net/ethernet/qlogic/qed/qed_hsi.h |  781 +++-
 drivers/net/ethernet/qlogic/qed/qed_hw.c  |3 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.c |   25 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.h |2 +-
 drivers/net/ethernet/qlogic/qed/qed_main.c|7 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.c |3 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.h |1 +
 drivers/net/ethernet/qlogic/qed/qed_reg_addr.h|8 +
 drivers/net/ethernet/qlogic/qed/qed_sp.h  |4 +
 drivers/net/ethernet/qlogic/qed/qed_sp_commands.c |3 +
 include/linux/qed/common_hsi.h|   10 +-
 include/linux/qed/fcoe_common.h   |  715 +++
 include/linux/qed/qed_fcoe_if.h   |  145 +++
 include/linux/qed/qed_if.h|   41 +-
 25 files changed, 3211 insertions(+), 19 deletions(-)
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
 create mode 100644 include/linux/qed/fcoe_common.h
 create mode 100644 include/linux/qed/qed_fcoe_if.h

diff --git a/drivers/net/ethernet/qlogic/Kconfig 
b/drivers/net/ethernet/qlogic/Kconfig
index 3cfd105..737b303 100644
--- a/drivers/net/ethernet/qlogic/Kconfig
+++ b/drivers/net/ethernet/qlogic/Kconfig
@@ -113,4 +113,7 @@ config QED_RDMA
 config QED_ISCSI
bool
 
+config QED_FCOE
+   bool
+
 endif # NET_VENDOR_QLOGIC
diff --git a/drivers/net/ethernet/qlogic/qed/Makefile 
b/drivers/net/ethernet/qlogic/qed/Makefile
index 729e437..e234083 100644
--- a/drivers/net/ethernet/qlogic/qed/Makefile
+++ b/drivers/net/ethernet/qlogic/qed/Makefile
@@ -7,3 +7,4 @@ qed-$(CONFIG_QED_SRIOV) += qed_sriov.o qed_vf.o
 qed-$(CONFIG_QED_LL2) += qed_ll2.o
 qed-$(CONFIG_QED_RDMA) += qed_roce.o
 qed-$(CONFIG_QED_ISCSI) += qed_iscsi.o qed_ooo.o
+qed-$(CONFIG_QED_FCOE) += qed_fcoe.o
diff --git a/drivers/net/ethernet/qlogic/qed/qed.h 
b/drivers/net/ethernet/qlogic/qed/qed.h
index 1f61cf3..0e218d0 100644
--- a/drivers/net/ethernet/qlogic/qed/qed.h
+++ b/drivers/net/ethernet/qlogic/qed/qed.h
@@ -60,6 +60,7 @@
 #define QED_WFQ_UNIT   100
 
 #define ISCSI_BDQ_ID(_port_id) (_port_id)
+#define FCOE_BDQ_ID(_port_id) ((_port_id) + 2)
 #define QED_WID_SIZE(1024)
 #define QED_PF_DEMS_SIZE(4)
 
@@ -167,6 +168,7 @@ struct qed_tunn_update_params {
  */
 enum qed_pci_personality {
QED_PCI_ETH,
+   QED_PCI_FCOE,
QED_PCI_ISCSI,
QED_PCI_ETH_ROCE,
QED_PCI_DEFAULT /* default in shmem */
@@ -204,6 +206,7 @@ enum QED_FEATURE {
QED_VF,
QED_RDMA_CNQ,
QED_VF_L2_QUE,
+   QED_FCOE_CQ,
QED_MAX_FEATURES,
 };
 
@@ -221,6 +224,7 @@ enum QED_PORT_MODE {
 
 enum qed_dev_cap {
QED_DEV_CAP_ETH,
+   QED_DEV_CAP_FCOE,
QED_DEV_CAP_ISCSI,
QED_DEV_CAP_ROCE,
 };
@@ -255,6 +259,10 @@ struct qed_hw_info {
u32 part_num[4];
 
unsigned char   hw_mac_addr[ETH_ALEN];
+   u64 node_wwn;
+   u64 port_wwn;
+
+   u16 num_fcoe_conns;
 
struct qed_igu_info *p_igu_info;
 
@@ -410,6 +418,7 @@ struct qed_hwfn {
struct qed_ooo_info *p_ooo_info;
struct qed_rdma_info*p_rdma_info;
struct qed_iscsi_info   *p_iscsi_info;
+   struct qed_fcoe_info*p_fcoe_info;
struct qed_pf_paramspf_params;
 
bool b_rdma_enabled_in_prs;
@@ -618,11 +627,13 @@ struct qed_dev {
 
u8  protocol;
 #define IS_QED_ETH_IF(cdev) ((cdev)->protocol == QED_PROTOCOL_ETH)
+#define IS_QED_FCOE_IF(cdev)((cdev)->protocol == QED_PROTOCOL_FCOE)
 
/* Callbacks to protocol driver */
union {
struct

[PATCH V5 0/2] Add QLogic FastLinQ FCoE (qedf) driver

2017-02-15 Thread Dupuis, Chad 
From: "Dupuis, Chad" <chad.dup...@cavium.com>

Dave, please apply the qed patch to net-next at your earliest convenience.
Martin, the qed patch needs to be applied first as the qedf patch is dependent
on the FCoE bits in the first qed driver patch.

This series introduces the hardware offload FCoE initiator driver for the
41000 Series Converged Network Adapters (579xx chip) by Cavium. The overall
driver design includes a common module ('qed') and protocol specific
dependent modules ('qedf' for FCoE).

This driver uses the kernel components of libfc and libfcoe as is and does not
make use of the open-fcoe user space components.  Therefore, no changes will 
need to be
made to any open-fcoe components.

The 'qed' common module, under drivers/net/ethernet/qlogic/qed/, is
enhanced with functionality required for FCoE support.

Changes from V4 -> V5

- Fix code alignment, function and variable formatting based on review comments
  in qed patch

Changes from V3 -> V4

- Minor update to banner text in qed_fcoe.c|h files
- Fix kbuild robot error on 32-bit systems in qedf
- Remove unneeded double memcpy for offloaded ELS commands in qedf

Changes from V2 -> V3

- Fix uninitialized variables reported by kbuild robot in qedf
- Remove superfluous comments from qedf.h
- Introduce new qedf_ctx flag to different stopping I/O for debug purposes.
- Don't take lport->disc.disc_mutex when restarting an rport.
- Remove extra whitespace in qedf_hsi.h

Changes from V1 -> V2

Changes in qed:
- Fix compiler warning when CONFIG_DCB is not set.

Fixes in qedf:
- Add qedf to scsi directory Makefile.
- Updates to convert LightL2 and I/O processing kthreads to workqueues.

Changes from RFC -> V1

- Squash qedf patches to one patch now that the initial review has taken place
- Convert qedf to use hotplug state machine
- Return via va_end to match corresponding va_start in logging functions
- Convert qedf_ctx offloaded port list to a RCU list so searches do not need
  to make use of spinlocks.  Also eliminates the need to fcport conn_id's.
- Use IS_ERR(fp) in qedf_flogi_resp() instead of checking individual FC_EX_* 
errors.
- Remove scsi_block_target when executing TMF request.
- Checkpatch fixes in the qed and qedf patches

Arun Easi (1):
  qed: Add support for hardware offloaded FCoE.

Dupuis, Chad (1):
  qedf: Add QLogic FastLinQ offload FCoE driver framework.

 MAINTAINERS   |6 +
 drivers/net/ethernet/qlogic/Kconfig   |3 +
 drivers/net/ethernet/qlogic/qed/Makefile  |1 +
 drivers/net/ethernet/qlogic/qed/qed.h |   11 +
 drivers/net/ethernet/qlogic/qed/qed_cxt.c |   98 +-
 drivers/net/ethernet/qlogic/qed/qed_cxt.h |3 +
 drivers/net/ethernet/qlogic/qed/qed_dcbx.c|   13 +-
 drivers/net/ethernet/qlogic/qed/qed_dcbx.h|5 +-
 drivers/net/ethernet/qlogic/qed/qed_dev.c |  205 +-
 drivers/net/ethernet/qlogic/qed/qed_dev_api.h |   42 +
 drivers/net/ethernet/qlogic/qed/qed_fcoe.c| 1014 +++
 drivers/net/ethernet/qlogic/qed/qed_fcoe.h|   87 +
 drivers/net/ethernet/qlogic/qed/qed_hsi.h |  781 -
 drivers/net/ethernet/qlogic/qed/qed_hw.c  |3 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.c |   25 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.h |2 +-
 drivers/net/ethernet/qlogic/qed/qed_main.c|7 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.c |3 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.h |1 +
 drivers/net/ethernet/qlogic/qed/qed_reg_addr.h|8 +
 drivers/net/ethernet/qlogic/qed/qed_sp.h  |4 +
 drivers/net/ethernet/qlogic/qed/qed_sp_commands.c |3 +
 drivers/scsi/Kconfig  |1 +
 drivers/scsi/Makefile |1 +
 drivers/scsi/qedf/Kconfig |   11 +
 drivers/scsi/qedf/Makefile|5 +
 drivers/scsi/qedf/qedf.h  |  545 
 drivers/scsi/qedf/qedf_attr.c |  165 +
 drivers/scsi/qedf/qedf_dbg.c  |  195 ++
 drivers/scsi/qedf/qedf_dbg.h  |  154 +
 drivers/scsi/qedf/qedf_debugfs.c  |  460 +++
 drivers/scsi/qedf/qedf_els.c  |  949 ++
 drivers/scsi/qedf/qedf_fip.c  |  269 ++
 drivers/scsi/qedf/qedf_hsi.h  |  422 +++
 drivers/scsi/qedf/qedf_io.c   | 2282 ++
 drivers/scsi/qedf/qedf_main.c | 3336 +
 drivers/scsi/qedf/qedf_version.h  |   15 +
 include/linux/qed/common_hsi.h|   10 +-
 include/linux/qed/fcoe_common.h   |  715 +
 include/linux/qed/qed_fcoe_if.h   |  145 +
 include/linux/qed/qed_if.h|   41 +-
 41 files changed, 12027 insertions(+), 19 deletions(

[PATCH V4 0/2] Add QLogic FastLinQ FCoE (qedf) driver

2017-02-13 Thread Dupuis, Chad 
From: "Dupuis, Chad" <chad.dup...@cavium.com>

Dave, please apply the qed patch to net-next at your earliest convenience.
Martin, the qed patch needs to be applied first as the qedf patch is dependent
on the FCoE bits in the first qed driver patch.

This series introduces the hardware offload FCoE initiator driver for the
41000 Series Converged Network Adapters (579xx chip) by Cavium. The overall
driver design includes a common module ('qed') and protocol specific
dependent modules ('qedf' for FCoE).

This driver uses the kernel components of libfc and libfcoe as is and does not
make use of the open-fcoe user space components.  Therefore, no changes will 
need to be
made to any open-fcoe components.

The 'qed' common module, under drivers/net/ethernet/qlogic/qed/, is
enhanced with functionality required for FCoE support.

Changes from V3 -> V4

- Minor update to banner text in qed_fcoe.c|h files
- Fix kbuild robot error on 32-bit systems in qedf
- Remove unneeded double memcpy for offloaded ELS commands in qedf

Changes from V2 -> V3

- Fix uninitialized variables reported by kbuild robot in qedf
- Remove superfluous comments from qedf.h
- Introduce new qedf_ctx flag to different stopping I/O for debug purposes.
- Don't take lport->disc.disc_mutex when restarting an rport.
- Remove extra whitespace in qedf_hsi.h

Changes from V1 -> V2

Changes in qed:
- Fix compiler warning when CONFIG_DCB is not set.

Fixes in qedf:
- Add qedf to scsi directory Makefile.
- Updates to convert LightL2 and I/O processing kthreads to workqueues.

Changes from RFC -> V1

- Squash qedf patches to one patch now that the initial review has taken place
- Convert qedf to use hotplug state machine
- Return via va_end to match corresponding va_start in logging functions
- Convert qedf_ctx offloaded port list to a RCU list so searches do not need
  to make use of spinlocks.  Also eliminates the need to fcport conn_id's.
- Use IS_ERR(fp) in qedf_flogi_resp() instead of checking individual FC_EX_* 
errors.
- Remove scsi_block_target when executing TMF request.
- Checkpatch fixes in the qed and qedf patches

Arun Easi (1):
  qed: Add support for hardware offloaded FCoE.

Dupuis, Chad (1):
  qedf: Add QLogic FastLinQ offload FCoE driver framework.

 MAINTAINERS   |6 +
 drivers/net/ethernet/qlogic/Kconfig   |3 +
 drivers/net/ethernet/qlogic/qed/Makefile  |1 +
 drivers/net/ethernet/qlogic/qed/qed.h |   11 +
 drivers/net/ethernet/qlogic/qed/qed_cxt.c |   98 +-
 drivers/net/ethernet/qlogic/qed/qed_cxt.h |3 +
 drivers/net/ethernet/qlogic/qed/qed_dcbx.c|   13 +-
 drivers/net/ethernet/qlogic/qed/qed_dcbx.h|5 +-
 drivers/net/ethernet/qlogic/qed/qed_dev.c |  205 +-
 drivers/net/ethernet/qlogic/qed/qed_dev_api.h |   42 +
 drivers/net/ethernet/qlogic/qed/qed_fcoe.c| 1014 +++
 drivers/net/ethernet/qlogic/qed/qed_fcoe.h|   76 +
 drivers/net/ethernet/qlogic/qed/qed_hsi.h |  781 -
 drivers/net/ethernet/qlogic/qed/qed_hw.c  |3 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.c |   25 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.h |2 +-
 drivers/net/ethernet/qlogic/qed/qed_main.c|7 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.c |3 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.h |1 +
 drivers/net/ethernet/qlogic/qed/qed_reg_addr.h|8 +
 drivers/net/ethernet/qlogic/qed/qed_sp.h  |4 +
 drivers/net/ethernet/qlogic/qed/qed_sp_commands.c |3 +
 drivers/scsi/Kconfig  |1 +
 drivers/scsi/Makefile |1 +
 drivers/scsi/qedf/Kconfig |   11 +
 drivers/scsi/qedf/Makefile|5 +
 drivers/scsi/qedf/qedf.h  |  545 
 drivers/scsi/qedf/qedf_attr.c |  165 +
 drivers/scsi/qedf/qedf_dbg.c  |  195 ++
 drivers/scsi/qedf/qedf_dbg.h  |  154 +
 drivers/scsi/qedf/qedf_debugfs.c  |  460 +++
 drivers/scsi/qedf/qedf_els.c  |  949 ++
 drivers/scsi/qedf/qedf_fip.c  |  269 ++
 drivers/scsi/qedf/qedf_hsi.h  |  422 +++
 drivers/scsi/qedf/qedf_io.c   | 2282 ++
 drivers/scsi/qedf/qedf_main.c | 3336 +
 drivers/scsi/qedf/qedf_version.h  |   15 +
 include/linux/qed/common_hsi.h|   10 +-
 include/linux/qed/fcoe_common.h   |  715 +
 include/linux/qed/qed_fcoe_if.h   |  145 +
 include/linux/qed/qed_if.h|   41 +-
 41 files changed, 12016 insertions(+), 19 deletions(-)
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h

[PATCH V4 net-next 1/2] qed: Add support for hardware offloaded FCoE.

2017-02-13 Thread Dupuis, Chad 
From: Arun Easi 

This adds the backbone required for the various HW initalizations
which are necessary for the FCoE driver (qedf) for QLogic FastLinQ
4 line of adapters - FW notification, resource initializations, etc.

Signed-off-by: Arun Easi 
Signed-off-by: Yuval Mintz 
---
 drivers/net/ethernet/qlogic/Kconfig   |3 +
 drivers/net/ethernet/qlogic/qed/Makefile  |1 +
 drivers/net/ethernet/qlogic/qed/qed.h |   11 +
 drivers/net/ethernet/qlogic/qed/qed_cxt.c |   98 +-
 drivers/net/ethernet/qlogic/qed/qed_cxt.h |3 +
 drivers/net/ethernet/qlogic/qed/qed_dcbx.c|   13 +-
 drivers/net/ethernet/qlogic/qed/qed_dcbx.h|5 +-
 drivers/net/ethernet/qlogic/qed/qed_dev.c |  205 -
 drivers/net/ethernet/qlogic/qed/qed_dev_api.h |   42 +
 drivers/net/ethernet/qlogic/qed/qed_fcoe.c| 1014 +
 drivers/net/ethernet/qlogic/qed/qed_fcoe.h|   76 ++
 drivers/net/ethernet/qlogic/qed/qed_hsi.h |  781 +++-
 drivers/net/ethernet/qlogic/qed/qed_hw.c  |3 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.c |   25 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.h |2 +-
 drivers/net/ethernet/qlogic/qed/qed_main.c|7 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.c |3 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.h |1 +
 drivers/net/ethernet/qlogic/qed/qed_reg_addr.h|8 +
 drivers/net/ethernet/qlogic/qed/qed_sp.h  |4 +
 drivers/net/ethernet/qlogic/qed/qed_sp_commands.c |3 +
 include/linux/qed/common_hsi.h|   10 +-
 include/linux/qed/fcoe_common.h   |  715 +++
 include/linux/qed/qed_fcoe_if.h   |  145 +++
 include/linux/qed/qed_if.h|   41 +-
 25 files changed, 3200 insertions(+), 19 deletions(-)
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
 create mode 100644 include/linux/qed/fcoe_common.h
 create mode 100644 include/linux/qed/qed_fcoe_if.h

diff --git a/drivers/net/ethernet/qlogic/Kconfig 
b/drivers/net/ethernet/qlogic/Kconfig
index 3cfd105..737b303 100644
--- a/drivers/net/ethernet/qlogic/Kconfig
+++ b/drivers/net/ethernet/qlogic/Kconfig
@@ -113,4 +113,7 @@ config QED_RDMA
 config QED_ISCSI
bool
 
+config QED_FCOE
+   bool
+
 endif # NET_VENDOR_QLOGIC
diff --git a/drivers/net/ethernet/qlogic/qed/Makefile 
b/drivers/net/ethernet/qlogic/qed/Makefile
index 729e437..e234083 100644
--- a/drivers/net/ethernet/qlogic/qed/Makefile
+++ b/drivers/net/ethernet/qlogic/qed/Makefile
@@ -7,3 +7,4 @@ qed-$(CONFIG_QED_SRIOV) += qed_sriov.o qed_vf.o
 qed-$(CONFIG_QED_LL2) += qed_ll2.o
 qed-$(CONFIG_QED_RDMA) += qed_roce.o
 qed-$(CONFIG_QED_ISCSI) += qed_iscsi.o qed_ooo.o
+qed-$(CONFIG_QED_FCOE) += qed_fcoe.o
diff --git a/drivers/net/ethernet/qlogic/qed/qed.h 
b/drivers/net/ethernet/qlogic/qed/qed.h
index 1f61cf3..08f2885 100644
--- a/drivers/net/ethernet/qlogic/qed/qed.h
+++ b/drivers/net/ethernet/qlogic/qed/qed.h
@@ -60,6 +60,7 @@
 #define QED_WFQ_UNIT   100
 
 #define ISCSI_BDQ_ID(_port_id) (_port_id)
+#define FCOE_BDQ_ID(_port_id) ((_port_id) + 2)
 #define QED_WID_SIZE(1024)
 #define QED_PF_DEMS_SIZE(4)
 
@@ -167,6 +168,7 @@ struct qed_tunn_update_params {
  */
 enum qed_pci_personality {
QED_PCI_ETH,
+   QED_PCI_FCOE,
QED_PCI_ISCSI,
QED_PCI_ETH_ROCE,
QED_PCI_DEFAULT /* default in shmem */
@@ -204,6 +206,7 @@ enum QED_FEATURE {
QED_VF,
QED_RDMA_CNQ,
QED_VF_L2_QUE,
+   QED_FCOE_CQ,
QED_MAX_FEATURES,
 };
 
@@ -221,6 +224,7 @@ enum QED_PORT_MODE {
 
 enum qed_dev_cap {
QED_DEV_CAP_ETH,
+   QED_DEV_CAP_FCOE,
QED_DEV_CAP_ISCSI,
QED_DEV_CAP_ROCE,
 };
@@ -255,6 +259,10 @@ struct qed_hw_info {
u32 part_num[4];
 
unsigned char   hw_mac_addr[ETH_ALEN];
+   u64 node_wwn;
+   u64 port_wwn;
+
+   u16 num_fcoe_conns;
 
struct qed_igu_info *p_igu_info;
 
@@ -410,6 +418,7 @@ struct qed_hwfn {
struct qed_ooo_info *p_ooo_info;
struct qed_rdma_info*p_rdma_info;
struct qed_iscsi_info   *p_iscsi_info;
+   struct qed_fcoe_info*p_fcoe_info;
struct qed_pf_paramspf_params;
 
bool b_rdma_enabled_in_prs;
@@ -618,11 +627,13 @@ struct qed_dev {
 
u8  protocol;
 #define IS_QED_ETH_IF(cdev) ((cdev)->protocol == QED_PROTOCOL_ETH)
+#define IS_QED_FCOE_IF(cdev)((cdev)->protocol == QED_PROTOCOL_FCOE)
 
/* Callbacks to protocol driver */
union {
struct qed_common_cb_ops*common;

[PATCH V3 0/2] Add QLogic FastLinQ FCoE (qedf) driver

2017-02-03 Thread Dupuis, Chad 
From: "Dupuis, Chad" <chad.dup...@cavium.com>

Dave, please apply the qed patch to net-next at your earliest convenience.
Martin, the qed patch needs to be applied first as the qedf patch is dependent
on the FCoE bits in the first qed driver patch.

This series introduces the hardware offload FCoE initiator driver for the
41000 Series Converged Network Adapters (579xx chip) by Cavium. The overall
driver design includes a common module ('qed') and protocol specific
dependent modules ('qedf' for FCoE).

This driver uses the kernel components of libfc and libfcoe as is and does not
make use of the open-fcoe user space components.  Therefore, no changes will 
need to be
made to any open-fcoe components.

The 'qed' common module, under drivers/net/ethernet/qlogic/qed/, is
enhanced with functionality required for FCoE support.

Changes from V2 -> V3

- Fix uninitialized variables reported by kbuild robot in qedf
- Remove superfluous comments from qedf.h
- Introduce new qedf_ctx flag to different stopping I/O for debug purposes.
- Don't take lport->disc.disc_mutex when restarting an rport.
- Remove extra whitespace in qedf_hsi.h

Changes from V1 -> V2

Changes in qed:
- Fix compiler warning when CONFIG_DCB is not set.

Fixes in qedf:
- Add qedf to scsi directory Makefile.
- Updates to convert LightL2 and I/O processing kthreads to workqueues.

Changes from RFC -> V1

- Squash qedf patches to one patch now that the initial review has taken place
- Convert qedf to use hotplug state machine
- Return via va_end to match corresponding va_start in logging functions
- Convert qedf_ctx offloaded port list to a RCU list so searches do not need
  to make use of spinlocks.  Also eliminates the need to fcport conn_id's.
- Use IS_ERR(fp) in qedf_flogi_resp() instead of checking individual FC_EX_* 
errors.
- Remove scsi_block_target when executing TMF request.
- Checkpatch fixes in the qed and qedf patches

Arun Easi (1):
  qed: Add support for hardware offloaded FCoE.

Dupuis, Chad (1):
  qedf: Add QLogic FastLinQ offload FCoE driver framework.

 MAINTAINERS   |6 +
 drivers/net/ethernet/qlogic/Kconfig   |3 +
 drivers/net/ethernet/qlogic/qed/Makefile  |1 +
 drivers/net/ethernet/qlogic/qed/qed.h |   11 +
 drivers/net/ethernet/qlogic/qed/qed_cxt.c |   98 +-
 drivers/net/ethernet/qlogic/qed/qed_cxt.h |3 +
 drivers/net/ethernet/qlogic/qed/qed_dcbx.c|   13 +-
 drivers/net/ethernet/qlogic/qed/qed_dcbx.h|5 +-
 drivers/net/ethernet/qlogic/qed/qed_dev.c |  205 +-
 drivers/net/ethernet/qlogic/qed/qed_dev_api.h |   42 +
 drivers/net/ethernet/qlogic/qed/qed_fcoe.c|  990 ++
 drivers/net/ethernet/qlogic/qed/qed_fcoe.h|   52 +
 drivers/net/ethernet/qlogic/qed/qed_hsi.h |  781 -
 drivers/net/ethernet/qlogic/qed/qed_hw.c  |3 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.c |   25 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.h |2 +-
 drivers/net/ethernet/qlogic/qed/qed_main.c|7 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.c |3 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.h |1 +
 drivers/net/ethernet/qlogic/qed/qed_reg_addr.h|8 +
 drivers/net/ethernet/qlogic/qed/qed_sp.h  |4 +
 drivers/net/ethernet/qlogic/qed/qed_sp_commands.c |3 +
 drivers/scsi/Kconfig  |1 +
 drivers/scsi/Makefile |1 +
 drivers/scsi/qedf/Kconfig |   11 +
 drivers/scsi/qedf/Makefile|5 +
 drivers/scsi/qedf/qedf.h  |  545 
 drivers/scsi/qedf/qedf_attr.c |  165 +
 drivers/scsi/qedf/qedf_dbg.c  |  195 ++
 drivers/scsi/qedf/qedf_dbg.h  |  154 +
 drivers/scsi/qedf/qedf_debugfs.c  |  460 +++
 drivers/scsi/qedf/qedf_els.c  |  981 ++
 drivers/scsi/qedf/qedf_fip.c  |  269 ++
 drivers/scsi/qedf/qedf_hsi.h  |  422 +++
 drivers/scsi/qedf/qedf_io.c   | 2282 ++
 drivers/scsi/qedf/qedf_main.c | 3336 +
 drivers/scsi/qedf/qedf_version.h  |   15 +
 include/linux/qed/common_hsi.h|   10 +-
 include/linux/qed/fcoe_common.h   |  715 +
 include/linux/qed/qed_fcoe_if.h   |  145 +
 include/linux/qed/qed_if.h|   41 +-
 41 files changed, 12000 insertions(+), 19 deletions(-)
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
 create mode 100644 drivers/scsi/qedf/Kconfig
 create mode 100644 drivers/scsi/qedf/Makefile
 create mode 100644 drivers/scsi/qedf/qedf.h
 create mode 100644 drivers/scsi/qedf/qedf_attr.c
 create m

[PATCH V3 net-next 1/2] qed: Add support for hardware offloaded FCoE.

2017-02-03 Thread Dupuis, Chad 
From: Arun Easi 

This adds the backbone required for the various HW initalizations
which are necessary for the FCoE driver (qedf) for QLogic FastLinQ
4 line of adapters - FW notification, resource initializations, etc.

Signed-off-by: Arun Easi 
Signed-off-by: Yuval Mintz 
---
 drivers/net/ethernet/qlogic/Kconfig   |   3 +
 drivers/net/ethernet/qlogic/qed/Makefile  |   1 +
 drivers/net/ethernet/qlogic/qed/qed.h |  11 +
 drivers/net/ethernet/qlogic/qed/qed_cxt.c |  98 ++-
 drivers/net/ethernet/qlogic/qed/qed_cxt.h |   3 +
 drivers/net/ethernet/qlogic/qed/qed_dcbx.c|  13 +-
 drivers/net/ethernet/qlogic/qed/qed_dcbx.h|   5 +-
 drivers/net/ethernet/qlogic/qed/qed_dev.c | 205 -
 drivers/net/ethernet/qlogic/qed/qed_dev_api.h |  42 +
 drivers/net/ethernet/qlogic/qed/qed_fcoe.c| 990 ++
 drivers/net/ethernet/qlogic/qed/qed_fcoe.h|  52 ++
 drivers/net/ethernet/qlogic/qed/qed_hsi.h | 781 -
 drivers/net/ethernet/qlogic/qed/qed_hw.c  |   3 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.c |  25 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.h |   2 +-
 drivers/net/ethernet/qlogic/qed/qed_main.c|   7 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.c |   3 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.h |   1 +
 drivers/net/ethernet/qlogic/qed/qed_reg_addr.h|   8 +
 drivers/net/ethernet/qlogic/qed/qed_sp.h  |   4 +
 drivers/net/ethernet/qlogic/qed/qed_sp_commands.c |   3 +
 include/linux/qed/common_hsi.h|  10 +-
 include/linux/qed/fcoe_common.h   | 715 
 include/linux/qed/qed_fcoe_if.h   | 145 
 include/linux/qed/qed_if.h|  41 +-
 25 files changed, 3152 insertions(+), 19 deletions(-)
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
 create mode 100644 include/linux/qed/fcoe_common.h
 create mode 100644 include/linux/qed/qed_fcoe_if.h

diff --git a/drivers/net/ethernet/qlogic/Kconfig 
b/drivers/net/ethernet/qlogic/Kconfig
index 3cfd105..737b303 100644
--- a/drivers/net/ethernet/qlogic/Kconfig
+++ b/drivers/net/ethernet/qlogic/Kconfig
@@ -113,4 +113,7 @@ config QED_RDMA
 config QED_ISCSI
bool
 
+config QED_FCOE
+   bool
+
 endif # NET_VENDOR_QLOGIC
diff --git a/drivers/net/ethernet/qlogic/qed/Makefile 
b/drivers/net/ethernet/qlogic/qed/Makefile
index 729e437..e234083 100644
--- a/drivers/net/ethernet/qlogic/qed/Makefile
+++ b/drivers/net/ethernet/qlogic/qed/Makefile
@@ -7,3 +7,4 @@ qed-$(CONFIG_QED_SRIOV) += qed_sriov.o qed_vf.o
 qed-$(CONFIG_QED_LL2) += qed_ll2.o
 qed-$(CONFIG_QED_RDMA) += qed_roce.o
 qed-$(CONFIG_QED_ISCSI) += qed_iscsi.o qed_ooo.o
+qed-$(CONFIG_QED_FCOE) += qed_fcoe.o
diff --git a/drivers/net/ethernet/qlogic/qed/qed.h 
b/drivers/net/ethernet/qlogic/qed/qed.h
index 1f61cf3..08f2885 100644
--- a/drivers/net/ethernet/qlogic/qed/qed.h
+++ b/drivers/net/ethernet/qlogic/qed/qed.h
@@ -60,6 +60,7 @@
 #define QED_WFQ_UNIT   100
 
 #define ISCSI_BDQ_ID(_port_id) (_port_id)
+#define FCOE_BDQ_ID(_port_id) ((_port_id) + 2)
 #define QED_WID_SIZE(1024)
 #define QED_PF_DEMS_SIZE(4)
 
@@ -167,6 +168,7 @@ struct qed_tunn_update_params {
  */
 enum qed_pci_personality {
QED_PCI_ETH,
+   QED_PCI_FCOE,
QED_PCI_ISCSI,
QED_PCI_ETH_ROCE,
QED_PCI_DEFAULT /* default in shmem */
@@ -204,6 +206,7 @@ enum QED_FEATURE {
QED_VF,
QED_RDMA_CNQ,
QED_VF_L2_QUE,
+   QED_FCOE_CQ,
QED_MAX_FEATURES,
 };
 
@@ -221,6 +224,7 @@ enum QED_PORT_MODE {
 
 enum qed_dev_cap {
QED_DEV_CAP_ETH,
+   QED_DEV_CAP_FCOE,
QED_DEV_CAP_ISCSI,
QED_DEV_CAP_ROCE,
 };
@@ -255,6 +259,10 @@ struct qed_hw_info {
u32 part_num[4];
 
unsigned char   hw_mac_addr[ETH_ALEN];
+   u64 node_wwn;
+   u64 port_wwn;
+
+   u16 num_fcoe_conns;
 
struct qed_igu_info *p_igu_info;
 
@@ -410,6 +418,7 @@ struct qed_hwfn {
struct qed_ooo_info *p_ooo_info;
struct qed_rdma_info*p_rdma_info;
struct qed_iscsi_info   *p_iscsi_info;
+   struct qed_fcoe_info*p_fcoe_info;
struct qed_pf_paramspf_params;
 
bool b_rdma_enabled_in_prs;
@@ -618,11 +627,13 @@ struct qed_dev {
 
u8  protocol;
 #define IS_QED_ETH_IF(cdev) ((cdev)->protocol == QED_PROTOCOL_ETH)
+#define IS_QED_FCOE_IF(cdev)((cdev)->protocol == QED_PROTOCOL_FCOE)
 
/* Callbacks to protocol driver */
union {
struct qed_common_cb_ops*common;

[PATCH V2 0/2] Add QLogic FastLinQ FCoE (qedf) driver

2017-01-25 Thread Dupuis, Chad 
From: "Dupuis, Chad" <chad.dup...@cavium.com>

This series introduces the hardware offload FCoE initiator driver for the
41000 Series Converged Network Adapters (579xx chip) by Cavium. The overall
driver design includes a common module ('qed') and protocol specific
dependent modules ('qedf' for FCoE).

This driver uses the kernel components of libfc and libfcoe as is and does not
make use of the open-fcoe user space components.  Therefore, no changes will 
need to be
made to any open-fcoe components.

The 'qed' common module, under drivers/net/ethernet/qlogic/qed/, is
enhanced with functionality required for FCoE support.

Martin, This patch needs to be applied first as the qedf patch is dependent
on the FCoE bits in the first qed driver patch.

Changes from V1 -> V2

Changes in qed:
- Fix compiler warning when CONFIG_DCB is not set.

Fixes in qedf:
- Add qedf to scsi directory Makefile.
- Updates to convert LightL2 and I/O processing kthreads to workqueues.

Changes from RFC -> V1

- Squash qedf patches to one patch now that the initial review has taken place
- Convert qedf to use hotplug state machine
- Return via va_end to match corresponding va_start in logging functions
- Convert qedf_ctx offloaded port list to a RCU list so searches do not need
  to make use of spinlocks.  Also eliminates the need to fcport conn_id's.
- Use IS_ERR(fp) in qedf_flogi_resp() instead of checking individual FC_EX_* 
errors.
- Remove scsi_block_target when executing TMF request.
- Checkpatch fixes in the qed and qedf patches

Arun Easi (1):
  qed: Add support for hardware offloaded FCoE.

Dupuis, Chad (1):
  qedf: Add QLogic FastLinQ offload FCoE driver framework.

 MAINTAINERS   |6 +
 drivers/net/ethernet/qlogic/Kconfig   |3 +
 drivers/net/ethernet/qlogic/qed/Makefile  |1 +
 drivers/net/ethernet/qlogic/qed/qed.h |   11 +
 drivers/net/ethernet/qlogic/qed/qed_cxt.c |   98 +-
 drivers/net/ethernet/qlogic/qed/qed_cxt.h |3 +
 drivers/net/ethernet/qlogic/qed/qed_dcbx.c|   13 +-
 drivers/net/ethernet/qlogic/qed/qed_dcbx.h|5 +-
 drivers/net/ethernet/qlogic/qed/qed_dev.c |  205 +-
 drivers/net/ethernet/qlogic/qed/qed_dev_api.h |   42 +
 drivers/net/ethernet/qlogic/qed/qed_fcoe.c|  990 ++
 drivers/net/ethernet/qlogic/qed/qed_fcoe.h|   52 +
 drivers/net/ethernet/qlogic/qed/qed_hsi.h |  781 -
 drivers/net/ethernet/qlogic/qed/qed_hw.c  |3 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.c |   25 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.h |2 +-
 drivers/net/ethernet/qlogic/qed/qed_main.c|7 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.c |3 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.h |1 +
 drivers/net/ethernet/qlogic/qed/qed_reg_addr.h|8 +
 drivers/net/ethernet/qlogic/qed/qed_sp.h  |4 +
 drivers/net/ethernet/qlogic/qed/qed_sp_commands.c |3 +
 drivers/scsi/Kconfig  |1 +
 drivers/scsi/Makefile |1 +
 drivers/scsi/qedf/Kconfig |   11 +
 drivers/scsi/qedf/Makefile|5 +
 drivers/scsi/qedf/qedf.h  |  548 
 drivers/scsi/qedf/qedf_attr.c |  165 +
 drivers/scsi/qedf/qedf_dbg.c  |  195 ++
 drivers/scsi/qedf/qedf_dbg.h  |  154 +
 drivers/scsi/qedf/qedf_debugfs.c  |  460 +++
 drivers/scsi/qedf/qedf_els.c  |  983 ++
 drivers/scsi/qedf/qedf_fip.c  |  269 ++
 drivers/scsi/qedf/qedf_hsi.h  |  427 +++
 drivers/scsi/qedf/qedf_io.c   | 2280 ++
 drivers/scsi/qedf/qedf_main.c | 3335 +
 drivers/scsi/qedf/qedf_version.h  |   15 +
 include/linux/qed/common_hsi.h|   10 +-
 include/linux/qed/fcoe_common.h   |  715 +
 include/linux/qed/qed_fcoe_if.h   |  145 +
 include/linux/qed/qed_if.h|   41 +-
 41 files changed, 12007 insertions(+), 19 deletions(-)
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
 create mode 100644 drivers/scsi/qedf/Kconfig
 create mode 100644 drivers/scsi/qedf/Makefile
 create mode 100644 drivers/scsi/qedf/qedf.h
 create mode 100644 drivers/scsi/qedf/qedf_attr.c
 create mode 100644 drivers/scsi/qedf/qedf_dbg.c
 create mode 100644 drivers/scsi/qedf/qedf_dbg.h
 create mode 100644 drivers/scsi/qedf/qedf_debugfs.c
 create mode 100644 drivers/scsi/qedf/qedf_els.c
 create mode 100644 drivers/scsi/qedf/qedf_fip.c
 create mode 100644 drivers/scsi/qedf/qedf_hsi.h
 create mode 100644 drivers/scsi/qedf/qedf_io.c
 create mode 100644 drivers/scsi/qedf/qedf_main.c
 crea

[PATCH V2 net-next 1/2] qed: Add support for hardware offloaded FCoE.

2017-01-25 Thread Dupuis, Chad 
From: Arun Easi 

This adds the backbone required for the various HW initalizations
which are necessary for the FCoE driver (qedf) for QLogic FastLinQ
4 line of adapters - FW notification, resource initializations, etc.

Signed-off-by: Arun Easi 
Signed-off-by: Yuval Mintz 
---
 drivers/net/ethernet/qlogic/Kconfig   |   3 +
 drivers/net/ethernet/qlogic/qed/Makefile  |   1 +
 drivers/net/ethernet/qlogic/qed/qed.h |  11 +
 drivers/net/ethernet/qlogic/qed/qed_cxt.c |  98 ++-
 drivers/net/ethernet/qlogic/qed/qed_cxt.h |   3 +
 drivers/net/ethernet/qlogic/qed/qed_dcbx.c|  13 +-
 drivers/net/ethernet/qlogic/qed/qed_dcbx.h|   5 +-
 drivers/net/ethernet/qlogic/qed/qed_dev.c | 205 -
 drivers/net/ethernet/qlogic/qed/qed_dev_api.h |  42 +
 drivers/net/ethernet/qlogic/qed/qed_fcoe.c| 990 ++
 drivers/net/ethernet/qlogic/qed/qed_fcoe.h|  52 ++
 drivers/net/ethernet/qlogic/qed/qed_hsi.h | 781 -
 drivers/net/ethernet/qlogic/qed/qed_hw.c  |   3 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.c |  25 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.h |   2 +-
 drivers/net/ethernet/qlogic/qed/qed_main.c|   7 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.c |   3 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.h |   1 +
 drivers/net/ethernet/qlogic/qed/qed_reg_addr.h|   8 +
 drivers/net/ethernet/qlogic/qed/qed_sp.h  |   4 +
 drivers/net/ethernet/qlogic/qed/qed_sp_commands.c |   3 +
 include/linux/qed/common_hsi.h|  10 +-
 include/linux/qed/fcoe_common.h   | 715 
 include/linux/qed/qed_fcoe_if.h   | 145 
 include/linux/qed/qed_if.h|  41 +-
 25 files changed, 3152 insertions(+), 19 deletions(-)
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
 create mode 100644 include/linux/qed/fcoe_common.h
 create mode 100644 include/linux/qed/qed_fcoe_if.h

diff --git a/drivers/net/ethernet/qlogic/Kconfig 
b/drivers/net/ethernet/qlogic/Kconfig
index 3cfd105..737b303 100644
--- a/drivers/net/ethernet/qlogic/Kconfig
+++ b/drivers/net/ethernet/qlogic/Kconfig
@@ -113,4 +113,7 @@ config QED_RDMA
 config QED_ISCSI
bool
 
+config QED_FCOE
+   bool
+
 endif # NET_VENDOR_QLOGIC
diff --git a/drivers/net/ethernet/qlogic/qed/Makefile 
b/drivers/net/ethernet/qlogic/qed/Makefile
index 729e437..e234083 100644
--- a/drivers/net/ethernet/qlogic/qed/Makefile
+++ b/drivers/net/ethernet/qlogic/qed/Makefile
@@ -7,3 +7,4 @@ qed-$(CONFIG_QED_SRIOV) += qed_sriov.o qed_vf.o
 qed-$(CONFIG_QED_LL2) += qed_ll2.o
 qed-$(CONFIG_QED_RDMA) += qed_roce.o
 qed-$(CONFIG_QED_ISCSI) += qed_iscsi.o qed_ooo.o
+qed-$(CONFIG_QED_FCOE) += qed_fcoe.o
diff --git a/drivers/net/ethernet/qlogic/qed/qed.h 
b/drivers/net/ethernet/qlogic/qed/qed.h
index 1f61cf3..08f2885 100644
--- a/drivers/net/ethernet/qlogic/qed/qed.h
+++ b/drivers/net/ethernet/qlogic/qed/qed.h
@@ -60,6 +60,7 @@
 #define QED_WFQ_UNIT   100
 
 #define ISCSI_BDQ_ID(_port_id) (_port_id)
+#define FCOE_BDQ_ID(_port_id) ((_port_id) + 2)
 #define QED_WID_SIZE(1024)
 #define QED_PF_DEMS_SIZE(4)
 
@@ -167,6 +168,7 @@ struct qed_tunn_update_params {
  */
 enum qed_pci_personality {
QED_PCI_ETH,
+   QED_PCI_FCOE,
QED_PCI_ISCSI,
QED_PCI_ETH_ROCE,
QED_PCI_DEFAULT /* default in shmem */
@@ -204,6 +206,7 @@ enum QED_FEATURE {
QED_VF,
QED_RDMA_CNQ,
QED_VF_L2_QUE,
+   QED_FCOE_CQ,
QED_MAX_FEATURES,
 };
 
@@ -221,6 +224,7 @@ enum QED_PORT_MODE {
 
 enum qed_dev_cap {
QED_DEV_CAP_ETH,
+   QED_DEV_CAP_FCOE,
QED_DEV_CAP_ISCSI,
QED_DEV_CAP_ROCE,
 };
@@ -255,6 +259,10 @@ struct qed_hw_info {
u32 part_num[4];
 
unsigned char   hw_mac_addr[ETH_ALEN];
+   u64 node_wwn;
+   u64 port_wwn;
+
+   u16 num_fcoe_conns;
 
struct qed_igu_info *p_igu_info;
 
@@ -410,6 +418,7 @@ struct qed_hwfn {
struct qed_ooo_info *p_ooo_info;
struct qed_rdma_info*p_rdma_info;
struct qed_iscsi_info   *p_iscsi_info;
+   struct qed_fcoe_info*p_fcoe_info;
struct qed_pf_paramspf_params;
 
bool b_rdma_enabled_in_prs;
@@ -618,11 +627,13 @@ struct qed_dev {
 
u8  protocol;
 #define IS_QED_ETH_IF(cdev) ((cdev)->protocol == QED_PROTOCOL_ETH)
+#define IS_QED_FCOE_IF(cdev)((cdev)->protocol == QED_PROTOCOL_FCOE)
 
/* Callbacks to protocol driver */
union {
struct qed_common_cb_ops*common;

[PATCH 1/2] qed: Add support for hardware offloaded FCoE.

2017-01-16 Thread Dupuis, Chad 
From: Arun Easi 

This adds the backbone required for the various HW initalizations
which are necessary for the FCoE driver (qedf) for QLogic FastLinQ
4 line of adapters - FW notification, resource initializations, etc.

Signed-off-by: Arun Easi 
Signed-off-by: Yuval Mintz 
---
 drivers/net/ethernet/qlogic/Kconfig   |   3 +
 drivers/net/ethernet/qlogic/qed/Makefile  |   1 +
 drivers/net/ethernet/qlogic/qed/qed.h |  11 +
 drivers/net/ethernet/qlogic/qed/qed_cxt.c |  98 ++-
 drivers/net/ethernet/qlogic/qed/qed_cxt.h |   3 +
 drivers/net/ethernet/qlogic/qed/qed_dcbx.c|  11 +
 drivers/net/ethernet/qlogic/qed/qed_dcbx.h|   1 +
 drivers/net/ethernet/qlogic/qed/qed_dev.c | 205 -
 drivers/net/ethernet/qlogic/qed/qed_dev_api.h |  42 +
 drivers/net/ethernet/qlogic/qed/qed_fcoe.c| 990 ++
 drivers/net/ethernet/qlogic/qed/qed_fcoe.h|  52 ++
 drivers/net/ethernet/qlogic/qed/qed_hsi.h | 781 -
 drivers/net/ethernet/qlogic/qed/qed_hw.c  |   3 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.c |  25 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.h |   2 +-
 drivers/net/ethernet/qlogic/qed/qed_main.c|   7 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.c |   3 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.h |   1 +
 drivers/net/ethernet/qlogic/qed/qed_reg_addr.h|   8 +
 drivers/net/ethernet/qlogic/qed/qed_sp.h  |   4 +
 drivers/net/ethernet/qlogic/qed/qed_sp_commands.c |   3 +
 include/linux/qed/common_hsi.h|  10 +-
 include/linux/qed/fcoe_common.h   | 715 
 include/linux/qed/qed_fcoe_if.h   | 145 
 include/linux/qed/qed_if.h|  39 +
 25 files changed, 3152 insertions(+), 11 deletions(-)
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
 create mode 100644 include/linux/qed/fcoe_common.h
 create mode 100644 include/linux/qed/qed_fcoe_if.h

diff --git a/drivers/net/ethernet/qlogic/Kconfig 
b/drivers/net/ethernet/qlogic/Kconfig
index 3cfd105..737b303 100644
--- a/drivers/net/ethernet/qlogic/Kconfig
+++ b/drivers/net/ethernet/qlogic/Kconfig
@@ -113,4 +113,7 @@ config QED_RDMA
 config QED_ISCSI
bool
 
+config QED_FCOE
+   bool
+
 endif # NET_VENDOR_QLOGIC
diff --git a/drivers/net/ethernet/qlogic/qed/Makefile 
b/drivers/net/ethernet/qlogic/qed/Makefile
index 729e437..e234083 100644
--- a/drivers/net/ethernet/qlogic/qed/Makefile
+++ b/drivers/net/ethernet/qlogic/qed/Makefile
@@ -7,3 +7,4 @@ qed-$(CONFIG_QED_SRIOV) += qed_sriov.o qed_vf.o
 qed-$(CONFIG_QED_LL2) += qed_ll2.o
 qed-$(CONFIG_QED_RDMA) += qed_roce.o
 qed-$(CONFIG_QED_ISCSI) += qed_iscsi.o qed_ooo.o
+qed-$(CONFIG_QED_FCOE) += qed_fcoe.o
diff --git a/drivers/net/ethernet/qlogic/qed/qed.h 
b/drivers/net/ethernet/qlogic/qed/qed.h
index 1f61cf3..08f2885 100644
--- a/drivers/net/ethernet/qlogic/qed/qed.h
+++ b/drivers/net/ethernet/qlogic/qed/qed.h
@@ -60,6 +60,7 @@
 #define QED_WFQ_UNIT   100
 
 #define ISCSI_BDQ_ID(_port_id) (_port_id)
+#define FCOE_BDQ_ID(_port_id) ((_port_id) + 2)
 #define QED_WID_SIZE(1024)
 #define QED_PF_DEMS_SIZE(4)
 
@@ -167,6 +168,7 @@ struct qed_tunn_update_params {
  */
 enum qed_pci_personality {
QED_PCI_ETH,
+   QED_PCI_FCOE,
QED_PCI_ISCSI,
QED_PCI_ETH_ROCE,
QED_PCI_DEFAULT /* default in shmem */
@@ -204,6 +206,7 @@ enum QED_FEATURE {
QED_VF,
QED_RDMA_CNQ,
QED_VF_L2_QUE,
+   QED_FCOE_CQ,
QED_MAX_FEATURES,
 };
 
@@ -221,6 +224,7 @@ enum QED_PORT_MODE {
 
 enum qed_dev_cap {
QED_DEV_CAP_ETH,
+   QED_DEV_CAP_FCOE,
QED_DEV_CAP_ISCSI,
QED_DEV_CAP_ROCE,
 };
@@ -255,6 +259,10 @@ struct qed_hw_info {
u32 part_num[4];
 
unsigned char   hw_mac_addr[ETH_ALEN];
+   u64 node_wwn;
+   u64 port_wwn;
+
+   u16 num_fcoe_conns;
 
struct qed_igu_info *p_igu_info;
 
@@ -410,6 +418,7 @@ struct qed_hwfn {
struct qed_ooo_info *p_ooo_info;
struct qed_rdma_info*p_rdma_info;
struct qed_iscsi_info   *p_iscsi_info;
+   struct qed_fcoe_info*p_fcoe_info;
struct qed_pf_paramspf_params;
 
bool b_rdma_enabled_in_prs;
@@ -618,11 +627,13 @@ struct qed_dev {
 
u8  protocol;
 #define IS_QED_ETH_IF(cdev) ((cdev)->protocol == QED_PROTOCOL_ETH)
+#define IS_QED_FCOE_IF(cdev)((cdev)->protocol == QED_PROTOCOL_FCOE)
 
/* Callbacks to protocol driver */
union {
struct qed_common_cb_ops*common;
struct

[PATCH 0/2] Add QLogic FastLinQ FCoE (qedf) driver

2017-01-16 Thread Dupuis, Chad 
From: "Dupuis, Chad" <chad.dup...@cavium.com>

This series introduces the hardware offload FCoE initiator driver for the
41000 Series Converged Network Adapters (579xx chip) by Cavium. The overall
driver design includes a common module ('qed') and protocol specific
dependent modules ('qedf' for FCoE).

This driver uses the kernel components of libfc and libfcoe as is and does not
make use of the open-fcoe user space components.  Therefore, no changes will 
need to be
made to any open-fcoe components.

The 'qed' common module, under drivers/net/ethernet/qlogic/qed/, is
enhanced with functionality required for FCoE support.

Changes from RFC -> V1

- Squash qedf patches to one patch now that the initial review has taken place
- Convert qedf to use hotplug state machine
- Return via va_end to match corresponding va_start in logging functions
- Convert qedf_ctx offloaded port list to a RCU list so searches do not need
  to make use of spinlocks.  Also eliminates the need to fcport conn_id's.
- Use IS_ERR(fp) in qedf_flogi_resp() instead of checking individual FC_EX_* 
errors.
- Remove scsi_block_target when executing TMF request.
- Checkpatch fixes in the qed and qedf patches

At the current time I couldn't make use of Christoph's IRQ allocation changes
as changes are needed to the core module (qed) which would affect other drivers
that are already in tree (qede, qedr, qedi).

Arun Easi (1):
  qed: Add support for hardware offloaded FCoE.

Dupuis, Chad (1):
  qedf: Add QLogic FastLinQ offload FCoE driver framework.

 MAINTAINERS   |6 +
 drivers/net/ethernet/qlogic/Kconfig   |3 +
 drivers/net/ethernet/qlogic/qed/Makefile  |1 +
 drivers/net/ethernet/qlogic/qed/qed.h |   11 +
 drivers/net/ethernet/qlogic/qed/qed_cxt.c |   98 +-
 drivers/net/ethernet/qlogic/qed/qed_cxt.h |3 +
 drivers/net/ethernet/qlogic/qed/qed_dcbx.c|   11 +
 drivers/net/ethernet/qlogic/qed/qed_dcbx.h|1 +
 drivers/net/ethernet/qlogic/qed/qed_dev.c |  205 +-
 drivers/net/ethernet/qlogic/qed/qed_dev_api.h |   42 +
 drivers/net/ethernet/qlogic/qed/qed_fcoe.c|  990 ++
 drivers/net/ethernet/qlogic/qed/qed_fcoe.h|   52 +
 drivers/net/ethernet/qlogic/qed/qed_hsi.h |  781 -
 drivers/net/ethernet/qlogic/qed/qed_hw.c  |3 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.c |   25 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.h |2 +-
 drivers/net/ethernet/qlogic/qed/qed_main.c|7 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.c |3 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.h |1 +
 drivers/net/ethernet/qlogic/qed/qed_reg_addr.h|8 +
 drivers/net/ethernet/qlogic/qed/qed_sp.h  |4 +
 drivers/net/ethernet/qlogic/qed/qed_sp_commands.c |3 +
 drivers/scsi/Kconfig  |1 +
 drivers/scsi/qedf/Kconfig |   11 +
 drivers/scsi/qedf/Makefile|5 +
 drivers/scsi/qedf/qedf.h  |  555 
 drivers/scsi/qedf/qedf_attr.c |  165 +
 drivers/scsi/qedf/qedf_dbg.c  |  195 ++
 drivers/scsi/qedf/qedf_dbg.h  |  154 +
 drivers/scsi/qedf/qedf_debugfs.c  |  471 +++
 drivers/scsi/qedf/qedf_els.c  |  984 ++
 drivers/scsi/qedf/qedf_fip.c  |  267 ++
 drivers/scsi/qedf/qedf_hsi.h  |  427 +++
 drivers/scsi/qedf/qedf_io.c   | 2301 ++
 drivers/scsi/qedf/qedf_main.c | 3483 +
 drivers/scsi/qedf/qedf_version.h  |   15 +
 include/linux/qed/common_hsi.h|   10 +-
 include/linux/qed/fcoe_common.h   |  715 +
 include/linux/qed/qed_fcoe_if.h   |  145 +
 include/linux/qed/qed_if.h|   39 +
 40 files changed, 12192 insertions(+), 11 deletions(-)
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
 create mode 100644 drivers/scsi/qedf/Kconfig
 create mode 100644 drivers/scsi/qedf/Makefile
 create mode 100644 drivers/scsi/qedf/qedf.h
 create mode 100644 drivers/scsi/qedf/qedf_attr.c
 create mode 100644 drivers/scsi/qedf/qedf_dbg.c
 create mode 100644 drivers/scsi/qedf/qedf_dbg.h
 create mode 100644 drivers/scsi/qedf/qedf_debugfs.c
 create mode 100644 drivers/scsi/qedf/qedf_els.c
 create mode 100644 drivers/scsi/qedf/qedf_fip.c
 create mode 100644 drivers/scsi/qedf/qedf_hsi.h
 create mode 100644 drivers/scsi/qedf/qedf_io.c
 create mode 100644 drivers/scsi/qedf/qedf_main.c
 create mode 100644 drivers/scsi/qedf/qedf_version.h
 create mode 100644 include/linux/qed/fcoe_common.h
 create mode 100644 include/linux/qed/qed_fcoe_if.h

-- 
1.8.5.6

[PATCH RFC net-next 1/5] qed: Add support for hardware offloaded FCoE.

2016-12-23 Thread Dupuis, Chad 
From: Arun Easi 

This adds the backbone required for the various HW initalizations
which are necessary for the FCoE driver (qedf) for QLogic FastLinQ
4 line of adapters - FW notification, resource initializations, etc.

Signed-off-by: Arun Easi 
Signed-off-by: Yuval Mintz 
---
 drivers/net/ethernet/qlogic/Kconfig   |   3 +
 drivers/net/ethernet/qlogic/qed/Makefile  |   1 +
 drivers/net/ethernet/qlogic/qed/qed.h |  11 +
 drivers/net/ethernet/qlogic/qed/qed_cxt.c |  98 ++-
 drivers/net/ethernet/qlogic/qed/qed_cxt.h |   3 +
 drivers/net/ethernet/qlogic/qed/qed_dcbx.c|  11 +
 drivers/net/ethernet/qlogic/qed/qed_dcbx.h|   1 +
 drivers/net/ethernet/qlogic/qed/qed_dev.c | 205 -
 drivers/net/ethernet/qlogic/qed/qed_dev_api.h |  42 +
 drivers/net/ethernet/qlogic/qed/qed_fcoe.c| 990 ++
 drivers/net/ethernet/qlogic/qed/qed_fcoe.h|  52 ++
 drivers/net/ethernet/qlogic/qed/qed_hsi.h | 781 -
 drivers/net/ethernet/qlogic/qed/qed_hw.c  |   3 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.c |  25 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.h |   2 +-
 drivers/net/ethernet/qlogic/qed/qed_main.c|   7 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.c |   3 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.h |   1 +
 drivers/net/ethernet/qlogic/qed/qed_reg_addr.h|   8 +
 drivers/net/ethernet/qlogic/qed/qed_sp.h  |   4 +
 drivers/net/ethernet/qlogic/qed/qed_sp_commands.c |   3 +
 include/linux/qed/common_hsi.h|  10 +-
 include/linux/qed/fcoe_common.h   | 715 
 include/linux/qed/qed_fcoe_if.h   | 145 
 include/linux/qed/qed_if.h|  39 +
 25 files changed, 3152 insertions(+), 11 deletions(-)
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
 create mode 100644 include/linux/qed/fcoe_common.h
 create mode 100644 include/linux/qed/qed_fcoe_if.h

diff --git a/drivers/net/ethernet/qlogic/Kconfig 
b/drivers/net/ethernet/qlogic/Kconfig
index 3cfd105..737b303 100644
--- a/drivers/net/ethernet/qlogic/Kconfig
+++ b/drivers/net/ethernet/qlogic/Kconfig
@@ -113,4 +113,7 @@ config QED_RDMA
 config QED_ISCSI
bool
 
+config QED_FCOE
+   bool
+
 endif # NET_VENDOR_QLOGIC
diff --git a/drivers/net/ethernet/qlogic/qed/Makefile 
b/drivers/net/ethernet/qlogic/qed/Makefile
index 729e437..e234083 100644
--- a/drivers/net/ethernet/qlogic/qed/Makefile
+++ b/drivers/net/ethernet/qlogic/qed/Makefile
@@ -7,3 +7,4 @@ qed-$(CONFIG_QED_SRIOV) += qed_sriov.o qed_vf.o
 qed-$(CONFIG_QED_LL2) += qed_ll2.o
 qed-$(CONFIG_QED_RDMA) += qed_roce.o
 qed-$(CONFIG_QED_ISCSI) += qed_iscsi.o qed_ooo.o
+qed-$(CONFIG_QED_FCOE) += qed_fcoe.o
diff --git a/drivers/net/ethernet/qlogic/qed/qed.h 
b/drivers/net/ethernet/qlogic/qed/qed.h
index 44c184e..cbb4ebc 100644
--- a/drivers/net/ethernet/qlogic/qed/qed.h
+++ b/drivers/net/ethernet/qlogic/qed/qed.h
@@ -36,6 +36,7 @@
 #define QED_WFQ_UNIT   100
 
 #define ISCSI_BDQ_ID(_port_id) (_port_id)
+#define FCOE_BDQ_ID(_port_id) ((_port_id) + 2)
 #define QED_WID_SIZE(1024)
 #define QED_PF_DEMS_SIZE(4)
 
@@ -143,6 +144,7 @@ struct qed_tunn_update_params {
  */
 enum qed_pci_personality {
QED_PCI_ETH,
+   QED_PCI_FCOE,
QED_PCI_ISCSI,
QED_PCI_ETH_ROCE,
QED_PCI_DEFAULT /* default in shmem */
@@ -180,6 +182,7 @@ enum QED_FEATURE {
QED_VF,
QED_RDMA_CNQ,
QED_VF_L2_QUE,
+   QED_FCOE_CQ,
QED_MAX_FEATURES,
 };
 
@@ -197,6 +200,7 @@ enum QED_PORT_MODE {
 
 enum qed_dev_cap {
QED_DEV_CAP_ETH,
+   QED_DEV_CAP_FCOE,
QED_DEV_CAP_ISCSI,
QED_DEV_CAP_ROCE,
 };
@@ -231,6 +235,10 @@ struct qed_hw_info {
u32 part_num[4];
 
unsigned char   hw_mac_addr[ETH_ALEN];
+   u64 node_wwn;
+   u64 port_wwn;
+
+   u16 num_fcoe_conns;
 
struct qed_igu_info *p_igu_info;
 
@@ -386,6 +394,7 @@ struct qed_hwfn {
struct qed_ooo_info *p_ooo_info;
struct qed_rdma_info*p_rdma_info;
struct qed_iscsi_info   *p_iscsi_info;
+   struct qed_fcoe_info*p_fcoe_info;
struct qed_pf_paramspf_params;
 
bool b_rdma_enabled_in_prs;
@@ -594,11 +603,13 @@ struct qed_dev {
 
u8  protocol;
 #define IS_QED_ETH_IF(cdev) ((cdev)->protocol == QED_PROTOCOL_ETH)
+#define IS_QED_FCOE_IF(cdev)((cdev)->protocol == QED_PROTOCOL_FCOE)
 
/* Callbacks to protocol driver */
union {
struct qed_common_cb_ops*common;
struct

[PATCH RFC 5/5] qedf: Add FIP request handling

2016-12-23 Thread Dupuis, Chad 
From: "Dupuis, Chad" <chad.dup...@cavium.com>

This patch adds handling for FIP requests and responses that are handled by
the driver itself and not by libfcoe.

Signed-off-by: Nilesh Javali <nilesh.jav...@cavium.com>
Signed-off-by: Manish Rangankar <manish.rangan...@cavium.com>
Signed-off-by: Saurav Kashyap <saurav.kash...@cavium.com>
Signed-off-by: Chad Dupuis <chad.dup...@cavium.com>
---
 drivers/scsi/qedf/qedf_fip.c | 267 +++
 1 file changed, 267 insertions(+)
 create mode 100644 drivers/scsi/qedf/qedf_fip.c

diff --git a/drivers/scsi/qedf/qedf_fip.c b/drivers/scsi/qedf/qedf_fip.c
new file mode 100644
index 000..4f185c6
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_fip.c
@@ -0,0 +1,267 @@
+/*
+ *  QLogic FCoE Offload Driver
+ *  Copyright (c) 2016 Cavium Inc.
+ *
+ *  This software is available 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.
+ */
+#include 
+#include 
+#include "qedf.h"
+
+extern const struct qed_fcoe_ops *qed_ops;
+/*
+ * FIP VLAN functions that will eventually move to libfcoe.
+ */
+
+void qedf_fcoe_send_vlan_req(struct qedf_ctx *qedf)
+{
+   struct sk_buff *skb;
+   char *eth_fr;
+   int fr_len;
+   struct fip_vlan *vlan;
+#define MY_FIP_ALL_FCF_MACS((__u8[6]) { 1, 0x10, 0x18, 1, 0, 2 })
+   static u8 my_fcoe_all_fcfs[ETH_ALEN] = MY_FIP_ALL_FCF_MACS;
+
+   skb = dev_alloc_skb(sizeof(struct fip_vlan));
+   if (!skb)
+   return;
+
+   fr_len = sizeof(*vlan);
+   eth_fr = (char *)skb->data;
+   vlan = (struct fip_vlan *)eth_fr;
+
+   memset(vlan, 0, sizeof(*vlan));
+   ether_addr_copy(vlan->eth.h_source, qedf->mac);
+   ether_addr_copy(vlan->eth.h_dest, my_fcoe_all_fcfs);
+   vlan->eth.h_proto = htons(ETH_P_FIP);
+
+   vlan->fip.fip_ver = FIP_VER_ENCAPS(FIP_VER);
+   vlan->fip.fip_op = htons(FIP_OP_VLAN);
+   vlan->fip.fip_subcode = FIP_SC_VL_REQ;
+   vlan->fip.fip_dl_len = htons(sizeof(vlan->desc) / FIP_BPW);
+
+   vlan->desc.mac.fd_desc.fip_dtype = FIP_DT_MAC;
+   vlan->desc.mac.fd_desc.fip_dlen = sizeof(vlan->desc.mac) / FIP_BPW;
+   ether_addr_copy(vlan->desc.mac.fd_mac, qedf->mac);
+
+   vlan->desc.wwnn.fd_desc.fip_dtype = FIP_DT_NAME;
+   vlan->desc.wwnn.fd_desc.fip_dlen = sizeof(vlan->desc.wwnn) / FIP_BPW;
+   put_unaligned_be64(qedf->lport->wwnn, >desc.wwnn.fd_wwn);
+
+   skb_put(skb, sizeof(*vlan));
+   skb->protocol = htons(ETH_P_FIP);
+   skb_reset_mac_header(skb);
+   skb_reset_network_header(skb);
+
+   QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "Sending FIP VLAN "
+  "request.");
+
+   if (atomic_read(>link_state) != QEDF_LINK_UP) {
+   QEDF_WARN(&(qedf->dbg_ctx), "Cannot send vlan request "
+   "because link is not up.\n");
+
+   kfree_skb(skb);
+   return;
+   }
+   qed_ops->ll2->start_xmit(qedf->cdev, skb);
+}
+
+static void qedf_fcoe_process_vlan_resp(struct qedf_ctx *qedf,
+   struct sk_buff *skb)
+{
+   struct fip_header *fiph;
+   struct fip_desc *desc;
+   u16 vid = 0;
+   ssize_t rlen;
+   size_t dlen;
+
+   fiph = (struct fip_header *)(((void *)skb->data) + 2 * ETH_ALEN + 2);
+
+   rlen = ntohs(fiph->fip_dl_len) * 4;
+   desc = (struct fip_desc *)(fiph + 1);
+   while (rlen > 0) {
+   dlen = desc->fip_dlen * FIP_BPW;
+   switch (desc->fip_dtype) {
+   case FIP_DT_VLAN:
+   vid = ntohs(((struct fip_vlan_desc *)desc)->fd_vlan);
+   break;
+   }
+   desc = (struct fip_desc *)((char *)desc + dlen);
+   rlen -= dlen;
+   }
+
+   QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "VLAN response, "
+  "vid=0x%x.\n", vid);
+
+   if (vid > 0 && qedf->vlan_id != vid) {
+   qedf_set_vlan_id(qedf, vid);
+
+   /* Inform waiter that it's ok to call fcoe_ctlr_link up() */
+   complete(>fipvlan_compl);
+   }
+}
+
+void qedf_fip_send(struct fcoe_ctlr *fip, struct sk_buff *skb)
+{
+   struct qedf_ctx *qedf = container_of(fip, struct qedf_ctx, ctlr);
+   struct ethhdr *eth_hdr;
+   struct vlan_ethhdr *vlan_hdr;
+   struct fip_header *fiph;
+   u16 op, vlan_tci = 0;
+   u8 sub;
+
+   if (!test_bit(QEDF_LL2_STARTED, >flags)) {
+   QEDF_WARN(&(qedf->dbg_ctx), "LL2 not started\n");
+   kfree_skb(skb);
+   return;
+   }
+
+   fiph = (struct fip_header *) ((void *)skb->

[PATCH RFC 0/5] Add QLogic FastLinQ FCoE (qedf) driver

2016-12-23 Thread Dupuis, Chad 
From: "Dupuis, Chad" <chad.dup...@cavium.com>

This series introduces the hardware offload FCoE initiator driver for the
41000 Series Converged Network Adapters (579xx chip) by QLogic. The overall
driver design includes a common module ('qed') and protocol specific
dependent modules ('qedf' for FCoE).

This driver uses the kernel components of libfc and libfcoe as is and does not
Make use of the open-fcoe user space components.  Therefore, no changes will 
need to be
Made to any open-fcoe components.

The 'qed' common module, under drivers/net/ethernet/qlogic/qed/, is
enhanced with functionality required for FCoE support.

Arun Easi (1):
  qed: Add support for hardware offloaded FCoE.

Dupuis, Chad (4):
  qedf: Add QLogic FastLinQ offload FCoE driver framework.
  qedf: Add offloaded I/O request functions.
  qedf: Add offload ELS request handling.
  qedf: Add FIP request handling.qdevelop_dec13_qedf

 MAINTAINERS   |6 +
 drivers/net/ethernet/qlogic/Kconfig   |3 +
 drivers/net/ethernet/qlogic/qed/Makefile  |1 +
 drivers/net/ethernet/qlogic/qed/qed.h |   11 +
 drivers/net/ethernet/qlogic/qed/qed_cxt.c |   98 +-
 drivers/net/ethernet/qlogic/qed/qed_cxt.h |3 +
 drivers/net/ethernet/qlogic/qed/qed_dcbx.c|   11 +
 drivers/net/ethernet/qlogic/qed/qed_dcbx.h|1 +
 drivers/net/ethernet/qlogic/qed/qed_dev.c |  205 +-
 drivers/net/ethernet/qlogic/qed/qed_dev_api.h |   42 +
 drivers/net/ethernet/qlogic/qed/qed_fcoe.c|  990 ++
 drivers/net/ethernet/qlogic/qed/qed_fcoe.h|   52 +
 drivers/net/ethernet/qlogic/qed/qed_hsi.h |  781 -
 drivers/net/ethernet/qlogic/qed/qed_hw.c  |3 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.c |   25 +
 drivers/net/ethernet/qlogic/qed/qed_ll2.h |2 +-
 drivers/net/ethernet/qlogic/qed/qed_main.c|7 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.c |3 +
 drivers/net/ethernet/qlogic/qed/qed_mcp.h |1 +
 drivers/net/ethernet/qlogic/qed/qed_reg_addr.h|8 +
 drivers/net/ethernet/qlogic/qed/qed_sp.h  |4 +
 drivers/net/ethernet/qlogic/qed/qed_sp_commands.c |3 +
 drivers/scsi/Kconfig  |1 +
 drivers/scsi/qedf/Kconfig |   11 +
 drivers/scsi/qedf/Makefile|5 +
 drivers/scsi/qedf/qedf.h  |  555 
 drivers/scsi/qedf/qedf_attr.c |  165 +
 drivers/scsi/qedf/qedf_dbg.c  |  192 ++
 drivers/scsi/qedf/qedf_dbg.h  |  153 +
 drivers/scsi/qedf/qedf_debugfs.c  |  472 +++
 drivers/scsi/qedf/qedf_els.c  |  984 ++
 drivers/scsi/qedf/qedf_fip.c  |  267 ++
 drivers/scsi/qedf/qedf_hsi.h  |  427 +++
 drivers/scsi/qedf/qedf_io.c   | 2303 ++
 drivers/scsi/qedf/qedf_main.c | 3519 +
 drivers/scsi/qedf/qedf_version.h  |   15 +
 include/linux/qed/common_hsi.h|   10 +-
 include/linux/qed/fcoe_common.h   |  715 +
 include/linux/qed/qed_fcoe_if.h   |  145 +
 include/linux/qed/qed_if.h|   39 +
 40 files changed, 12227 insertions(+), 11 deletions(-)
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.c
 create mode 100644 drivers/net/ethernet/qlogic/qed/qed_fcoe.h
 create mode 100644 drivers/scsi/qedf/Kconfig
 create mode 100644 drivers/scsi/qedf/Makefile
 create mode 100644 drivers/scsi/qedf/qedf.h
 create mode 100644 drivers/scsi/qedf/qedf_attr.c
 create mode 100644 drivers/scsi/qedf/qedf_dbg.c
 create mode 100644 drivers/scsi/qedf/qedf_dbg.h
 create mode 100644 drivers/scsi/qedf/qedf_debugfs.c
 create mode 100644 drivers/scsi/qedf/qedf_els.c
 create mode 100644 drivers/scsi/qedf/qedf_fip.c
 create mode 100644 drivers/scsi/qedf/qedf_hsi.h
 create mode 100644 drivers/scsi/qedf/qedf_io.c
 create mode 100644 drivers/scsi/qedf/qedf_main.c
 create mode 100644 drivers/scsi/qedf/qedf_version.h
 create mode 100644 include/linux/qed/fcoe_common.h
 create mode 100644 include/linux/qed/qed_fcoe_if.h

-- 
1.8.5.6

[PATCH RFC 3/5] qedf: Add offloaded I/O request functions.

2016-12-23 Thread Dupuis, Chad 
From: "Dupuis, Chad" <chad.dup...@cavium.com>

This patch adds various I/O requests types that are handled in firmware:

- Normal I/O requests
- ABTS requests
- Cleanup requests
- Task management requests

It also contains:

- I/O request initialization
- Firmware completion handling

Signed-off-by: Nilesh Javali <nilesh.jav...@cavium.com>
Signed-off-by: Manish Rangankar <manish.rangan...@cavium.com>
Signed-off-by: Saurav Kashyap <saurav.kash...@cavium.com>
Signed-off-by: Chad Dupuis <chad.dup...@cavium.com>
---
 drivers/scsi/qedf/qedf_hsi.h |  427 
 drivers/scsi/qedf/qedf_io.c  | 2303 ++
 2 files changed, 2730 insertions(+)
 create mode 100644 drivers/scsi/qedf/qedf_hsi.h
 create mode 100644 drivers/scsi/qedf/qedf_io.c

diff --git a/drivers/scsi/qedf/qedf_hsi.h b/drivers/scsi/qedf/qedf_hsi.h
new file mode 100644
index 000..953aa5e
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_hsi.h
@@ -0,0 +1,427 @@
+/*
+ *  QLogic FCoE Offload Driver
+ *  Copyright (c) 2016 Cavium Inc.
+ *
+ *  This software is available 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.
+ */
+#ifndef __QEDF_HSI__
+#define __QEDF_HSI__
+/*
+ * Add include to common target
+ */
+#include 
+
+/*
+ * Add include to common storage target
+ */
+#include 
+
+/*
+ * Add include to common fcoe target for both eCore and protocol driver
+ */
+#include 
+
+
+/*
+ * FCoE CQ element ABTS information
+ */
+struct fcoe_abts_info {
+   u8 r_ctl /* R_CTL in the ABTS response frame */;
+   u8 reserved0;
+   __le16 rx_id;
+   __le32 reserved2[2];
+   __le32 fc_payload[3] /* ABTS FC payload response frame */;
+};
+
+
+/*
+ * FCoE class type
+ */
+enum fcoe_class_type {
+   FCOE_TASK_CLASS_TYPE_3,
+   FCOE_TASK_CLASS_TYPE_2,
+   MAX_FCOE_CLASS_TYPE
+};
+
+
+/*
+ * FCoE CMDQ element control information
+ */
+struct fcoe_cmdqe_control {
+   __le16 conn_id;
+   u8 num_additional_cmdqes;
+   u8 cmdType;
+   /* true for ABTS request cmdqe. used in Target mode */
+#define FCOE_CMDQE_CONTROL_ABTSREQCMD_MASK  0x1
+#define FCOE_CMDQE_CONTROL_ABTSREQCMD_SHIFT 0
+#define FCOE_CMDQE_CONTROL_RESERVED1_MASK   0x7F
+#define FCOE_CMDQE_CONTROL_RESERVED1_SHIFT  1
+   u8 reserved2[4];
+};
+
+/*
+ * FCoE control + payload CMDQ element
+ */
+struct fcoe_cmdqe {
+   struct fcoe_cmdqe_control hdr;
+   u8 fc_header[24];
+   __le32 fcp_cmd_payload[8];
+};
+
+
+
+/*
+ * FCP RSP flags
+ */
+struct fcoe_fcp_rsp_flags {
+   u8 flags;
+#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID_MASK  0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_RSP_LEN_VALID_SHIFT 0
+#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID_MASK  0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_SNS_LEN_VALID_SHIFT 1
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER_MASK 0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_OVER_SHIFT2
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER_MASK0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_RESID_UNDER_SHIFT   3
+#define FCOE_FCP_RSP_FLAGS_FCP_CONF_REQ_MASK   0x1
+#define FCOE_FCP_RSP_FLAGS_FCP_CONF_REQ_SHIFT  4
+#define FCOE_FCP_RSP_FLAGS_FCP_BIDI_FLAGS_MASK 0x7
+#define FCOE_FCP_RSP_FLAGS_FCP_BIDI_FLAGS_SHIFT5
+};
+
+/*
+ * FCoE CQ element response information
+ */
+struct fcoe_cqe_rsp_info {
+   struct fcoe_fcp_rsp_flags rsp_flags;
+   u8 scsi_status_code;
+   __le16 retry_delay_timer;
+   __le32 fcp_resid;
+   __le32 fcp_sns_len;
+   __le32 fcp_rsp_len;
+   __le16 rx_id;
+   u8 fw_error_flags;
+#define FCOE_CQE_RSP_INFO_FW_UNDERRUN_MASK  0x1 /* FW detected underrun */
+#define FCOE_CQE_RSP_INFO_FW_UNDERRUN_SHIFT 0
+#define FCOE_CQE_RSP_INFO_RESREVED_MASK 0x7F
+#define FCOE_CQE_RSP_INFO_RESREVED_SHIFT1
+   u8 reserved;
+   __le32 fw_residual /* Residual bytes calculated by FW */;
+};
+
+/*
+ * FCoE CQ element Target completion information
+ */
+struct fcoe_cqe_target_info {
+   __le16 rx_id;
+   __le16 reserved0;
+   __le32 reserved1[5];
+};
+
+/*
+ * FCoE error/warning reporting entry
+ */
+struct fcoe_err_report_entry {
+   __le32 err_warn_bitmap_lo /* Error bitmap lower 32 bits */;
+   __le32 err_warn_bitmap_hi /* Error bitmap higher 32 bits */;
+   /* Buffer offset the beginning of the Sequence last transmitted */
+   __le32 tx_buf_off;
+   /* Buffer offset from the beginning of the Sequence last received */
+   __le32 rx_buf_off;
+   __le16 rx_id /* RX_ID of the associated task */;
+   __le16 reserved1;
+   __le32 reserved2;
+};
+
+/*
+ * FCoE CQ element middle path information
+ */
+struct fcoe_cqe_midpath_info {
+   __le32 data_placement_size;
+   __le16 rx_id;
+   __le16 reserved0;
+   __le32 reserved1[4];
+};
+
+/*
+ * FCoE CQ element unsolicited information
+ */
+struct fcoe_unsolic_info {
+   /* BD information: Physical address a

[PATCH RFC 4/5] qedf: Add offload ELS request handling.

2016-12-23 Thread Dupuis, Chad 
From: "Dupuis, Chad" <chad.dup...@cavium.com>

This patch adds support for ELS requests that are handled by the firmware for
offloaded sessions.

Signed-off-by: Nilesh Javali <nilesh.jav...@cavium.com>
Signed-off-by: Manish Rangankar <manish.rangan...@cavium.com>
Signed-off-by: Saurav Kashyap <saurav.kash...@cavium.com>
Signed-off-by: Chad Dupuis <chad.dup...@cavium.com>
---
 drivers/scsi/qedf/qedf_els.c | 984 +++
 1 file changed, 984 insertions(+)
 create mode 100644 drivers/scsi/qedf/qedf_els.c

diff --git a/drivers/scsi/qedf/qedf_els.c b/drivers/scsi/qedf/qedf_els.c
new file mode 100644
index 000..98a80b3
--- /dev/null
+++ b/drivers/scsi/qedf/qedf_els.c
@@ -0,0 +1,984 @@
+/*
+ *  QLogic FCoE Offload Driver
+ *  Copyright (c) 2016 Cavium Inc.
+ *
+ *  This software is available 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.
+ */
+#include "qedf.h"
+
+/* It's assumed that the lock is held when calling this function. */
+static int qedf_initiate_els(struct qedf_rport *fcport, unsigned int op,
+   void *data, uint32_t data_len,
+   void (*cb_func)(struct qedf_els_cb_arg *cb_arg),
+   struct qedf_els_cb_arg *cb_arg, uint32_t timer_msec)
+{
+   struct qedf_ctx *qedf = fcport->qedf;
+   struct fc_lport *lport = qedf->lport;
+   struct qedf_ioreq *els_req;
+   struct qedf_mp_req *mp_req;
+   struct fc_frame_header *fc_hdr;
+   struct fcoe_task_context *task;
+   int rc = 0;
+   uint32_t did, sid;
+   uint16_t xid;
+   uint32_t start_time = jiffies / HZ;
+   uint32_t current_time;
+
+   QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Sending ELS\n");
+
+   rc = fc_remote_port_chkready(fcport->rport);
+   if (rc) {
+   QEDF_ERR(&(qedf->dbg_ctx), "els 0x%x: rport not ready\n", op);
+   rc = -EAGAIN;
+   goto els_err;
+   }
+   if (lport->state != LPORT_ST_READY || !(lport->link_up)) {
+   QEDF_ERR(&(qedf->dbg_ctx), "els 0x%x: link is not ready\n",
+ op);
+   rc = -EAGAIN;
+   goto els_err;
+   }
+
+   if (!(test_bit(QEDF_RPORT_SESSION_READY, >flags))) {
+   QEDF_ERR(&(qedf->dbg_ctx), "els 0x%x: fcport not ready\n", op);
+   rc = -EINVAL;
+   goto els_err;
+   }
+
+retry_els:
+   els_req = qedf_alloc_cmd(fcport, QEDF_ELS);
+   if (!els_req) {
+   current_time = jiffies / HZ;
+   if ((current_time - start_time) > 10) {
+   QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS,
+  "els: Failed els 0x%x\n", op);
+   rc = -ENOMEM;
+   goto els_err;
+   }
+   mdelay(20 * USEC_PER_MSEC);
+   goto retry_els;
+   }
+
+   QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "initiate_els els_req = "
+  "0x%p cb_arg = %p xid = %x\n", els_req, cb_arg,
+  els_req->xid);
+   els_req->sc_cmd = NULL;
+   els_req->cmd_type = QEDF_ELS;
+   els_req->fcport = fcport;
+   els_req->cb_func = cb_func;
+   cb_arg->io_req = els_req;
+   cb_arg->op = op;
+   els_req->cb_arg = cb_arg;
+   els_req->data_xfer_len = data_len;
+
+   /* Record which cpu this request is associated with */
+   els_req->cpu = smp_processor_id();
+   qedf_inc_percpu_requests(els_req->cpu);
+
+   mp_req = (struct qedf_mp_req *)&(els_req->mp_req);
+   rc = qedf_init_mp_req(els_req);
+   if (rc) {
+   QEDF_ERR(&(qedf->dbg_ctx), "ELS MP request init failed\n");
+   kref_put(_req->refcount, qedf_release_cmd);
+   goto els_err;
+   } else {
+   rc = 0;
+   }
+
+   /* Fill ELS Payload */
+   if ((op >= ELS_LS_RJT) && (op <= ELS_AUTH_ELS)) {
+   memcpy(mp_req->req_buf, data, data_len);
+   } else {
+   QEDF_ERR(&(qedf->dbg_ctx), "Invalid ELS op 0x%x\n", op);
+   els_req->cb_func = NULL;
+   els_req->cb_arg = NULL;
+   kref_put(_req->refcount, qedf_release_cmd);
+   rc = -EINVAL;
+   }
+
+   if (rc)
+   goto els_err;
+
+   /* Fill FC header */
+   fc_hdr = &(mp_req->req_fc_hdr);
+
+   did = fcport->rdata->ids.port_id;
+   sid = fcport->sid;
+
+   __fc_fill_fc_hdr(fc_hdr, FC_RCTL_ELS_REQ, sid, did,
+  FC_TYPE_ELS, FC_FC_FIRST_SEQ | FC_FC_END_SEQ |
+  FC