[SCSI] bnx2fc: REC/SRR link service request and response handling

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
mariux64 · Jul 28, 2011 · 7444695 · 7444695
1 parent 6c5a7ce
commit 7444695
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Showing 3 changed files with 421 additions and 17 deletions.
diff --git a/drivers/scsi/bnx2fc/bnx2fc.h b/drivers/scsi/bnx2fc/bnx2fc.h
@@ -141,6 +141,9 @@
 
 #define BNX2FC_RNID_HBA			0x7
 
+#define SRR_RETRY_COUNT			5
+#define REC_RETRY_COUNT			1
+
 /* bnx2fc driver uses only one instance of fcoe_percpu_s */
 extern struct fcoe_percpu_s bnx2fc_global;
 
@@ -386,6 +389,7 @@ struct bnx2fc_cmd {
 	struct completion tm_done;
 	int wait_for_comp;
 	u16 xid;
+	struct fcoe_err_report_entry err_entry;
 	struct fcoe_task_ctx_entry *task;
 	struct io_bdt *bd_tbl;
 	struct fcp_rsp *rsp;
@@ -402,6 +406,12 @@ struct bnx2fc_cmd {
 #define BNX2FC_FLAG_IO_COMPL		0x9
 #define BNX2FC_FLAG_ELS_DONE		0xa
 #define BNX2FC_FLAG_ELS_TIMEOUT		0xb
+#define BNX2FC_FLAG_CMD_LOST		0xc
+#define BNX2FC_FLAG_SRR_SENT		0xd
+	u8 rec_retry;
+	u8 srr_retry;
+	u32 srr_offset;
+	u8 srr_rctl;
 	u32 fcp_resid;
 	u32 fcp_rsp_len;
 	u32 fcp_sns_len;
@@ -432,6 +442,7 @@ struct bnx2fc_unsol_els {
 
 
 
+struct bnx2fc_cmd *bnx2fc_cmd_alloc(struct bnx2fc_rport *tgt);
 struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type);
 void bnx2fc_cmd_release(struct kref *ref);
 int bnx2fc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd);
@@ -522,6 +533,7 @@ void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt,
 				   unsigned char *buf,
 				   u32 frame_len, u16 l2_oxid);
 int bnx2fc_send_stat_req(struct bnx2fc_hba *hba);
+int bnx2fc_post_io_req(struct bnx2fc_rport *tgt, struct bnx2fc_cmd *io_req);
 int bnx2fc_send_rec(struct bnx2fc_cmd *orig_io_req);
 int bnx2fc_send_srr(struct bnx2fc_cmd *orig_io_req, u32 offset, u8 r_ctl);
 void bnx2fc_process_seq_cleanup_compl(struct bnx2fc_cmd *seq_clnup_req,