bnx2x, bnx2fc, bnx2i, cnic: Add statistics support and FCoE capabilities advertisement

1. When FCoE offload driver is registered, copy its capabilities to the chip
   scratchpad.
2. Copy FCoE/iSCSI MAC addresses in aligned manner to chip scratchpad.
3. Add FCoE/iSCSI statistics collection support

Signed-off-by: Barak Witkowski <barak@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 26 insertions, 9 deletions

diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c
index ece47e502282..49e8b056ca10 100644
--- a/drivers/scsi/bnx2i/bnx2i_hwi.c
+++ b/drivers/scsi/bnx2i/bnx2i_hwi.c
@@ -1350,6 +1350,7 @@ int bnx2i_process_scsi_cmd_resp(struct iscsi_session *session,
                                 struct cqe *cqe)
 {
         struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data;
+        struct bnx2i_hba *hba = bnx2i_conn->hba;
         struct bnx2i_cmd_response *resp_cqe;
         struct bnx2i_cmd *bnx2i_cmd;
         struct iscsi_task *task;
@@ -1367,16 +1368,26 @@ int bnx2i_process_scsi_cmd_resp(struct iscsi_session *session,
 
         if (bnx2i_cmd->req.op_attr & ISCSI_CMD_REQUEST_READ) {
                 conn->datain_pdus_cnt +=
-                        resp_cqe->task_stat.read_stat.num_data_outs;
+                        resp_cqe->task_stat.read_stat.num_data_ins;
                 conn->rxdata_octets +=
                         bnx2i_cmd->req.total_data_transfer_length;
+                ADD_STATS_64(hba, rx_pdus,
+                             resp_cqe->task_stat.read_stat.num_data_ins);
+                ADD_STATS_64(hba, rx_bytes,
+                             bnx2i_cmd->req.total_data_transfer_length);
         } else {
                 conn->dataout_pdus_cnt +=
-                        resp_cqe->task_stat.read_stat.num_data_outs;
+                        resp_cqe->task_stat.write_stat.num_data_outs;
                 conn->r2t_pdus_cnt +=
-                        resp_cqe->task_stat.read_stat.num_r2ts;
+                        resp_cqe->task_stat.write_stat.num_r2ts;
                 conn->txdata_octets +=
                         bnx2i_cmd->req.total_data_transfer_length;
+                ADD_STATS_64(hba, tx_pdus,
+                             resp_cqe->task_stat.write_stat.num_data_outs);
+                ADD_STATS_64(hba, tx_bytes,
+                             bnx2i_cmd->req.total_data_transfer_length);
+                ADD_STATS_64(hba, rx_pdus,
+                             resp_cqe->task_stat.write_stat.num_r2ts);
         }
         bnx2i_iscsi_unmap_sg_list(bnx2i_cmd);
 
@@ -1961,6 +1972,7 @@ static int bnx2i_process_new_cqes(struct bnx2i_conn *bnx2i_conn)
 {
         struct iscsi_conn *conn = bnx2i_conn->cls_conn->dd_data;
         struct iscsi_session *session = conn->session;
+        struct bnx2i_hba *hba = bnx2i_conn->hba;
         struct qp_info *qp;
         struct bnx2i_nop_in_msg *nopin;
         int tgt_async_msg;
@@ -1973,7 +1985,7 @@ static int bnx2i_process_new_cqes(struct bnx2i_conn *bnx2i_conn)
 
         if (!qp->cq_virt) {
                 printk(KERN_ALERT "bnx2i (%s): cq resr freed in bh execution!",
-                        bnx2i_conn->hba->netdev->name);
+                       hba->netdev->name);
                 goto out;
         }
         while (1) {
@@ -1985,9 +1997,9 @@ static int bnx2i_process_new_cqes(struct bnx2i_conn *bnx2i_conn)
                         if (nopin->op_code == ISCSI_OP_NOOP_IN &&
                             nopin->itt == (u16) RESERVED_ITT) {
                                 printk(KERN_ALERT "bnx2i: Unsolicited "
-                                        "NOP-In detected for suspended "
-                                        "connection dev=%s!\n",
-                                        bnx2i_conn->hba->netdev->name);
+                                       "NOP-In detected for suspended "
+                                       "connection dev=%s!\n",
+                                       hba->netdev->name);
                                 bnx2i_unsol_pdu_adjust_rq(bnx2i_conn);
                                 goto cqe_out;
                         }
@@ -2001,7 +2013,7 @@ static int bnx2i_process_new_cqes(struct bnx2i_conn *bnx2i_conn)
                         /* Run the kthread engine only for data cmds
                            All other cmds will be completed in this bh! */
                         bnx2i_queue_scsi_cmd_resp(session, bnx2i_conn, nopin);
-                        break;
+                        goto done;
                 case ISCSI_OP_LOGIN_RSP:
                         bnx2i_process_login_resp(session, bnx2i_conn,
                                                  qp->cq_cons_qe);
@@ -2044,11 +2056,15 @@ static int bnx2i_process_new_cqes(struct bnx2i_conn *bnx2i_conn)
                         printk(KERN_ALERT "bnx2i: unknown opcode 0x%x\n",
                                           nopin->op_code);
                 }
+
+                ADD_STATS_64(hba, rx_pdus, 1);
+                ADD_STATS_64(hba, rx_bytes, nopin->data_length);
+done:
                 if (!tgt_async_msg) {
                         if (!atomic_read(&bnx2i_conn->ep->num_active_cmds))
                                 printk(KERN_ALERT "bnx2i (%s): no active cmd! "
                                        "op 0x%x\n",
-                                       bnx2i_conn->hba->netdev->name,
+                                       hba->netdev->name,
                                        nopin->op_code);
                         else
                                 atomic_dec(&bnx2i_conn->ep->num_active_cmds);
@@ -2692,6 +2708,7 @@ struct cnic_ulp_ops bnx2i_cnic_cb = {
         .cm_remote_close = bnx2i_cm_remote_close,
         .cm_remote_abort = bnx2i_cm_remote_abort,
         .iscsi_nl_send_msg = bnx2i_send_nl_mesg,
+        .cnic_get_stats = bnx2i_get_stats,
         .owner = THIS_MODULE
 };