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

[Joe Perches]

On Wed, 2015-12-16 at 13:58 -0600, Faisal Latif wrote:
> 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.
[]
> diff --git a/drivers/net/ethernet/intel/i40e/i40e_client.c 
> b/drivers/net/ethernet/intel/i40e/i40e_client.c
[]
> + * Contact Information:
> + * e1000-devel Mailing List 

trivia:

This should probably be: intel-wired-...@lists.osuosl.org

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[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 -