scsi: lpfc: SLI path split: Refactor Abort paths

This patch refactors the Abort paths to use SLI-4 as the primary interface.

 - Introduce generic lpfc_sli_prep_abort_xri jump table routine

 - Consolidate lpfc_sli4_issue_abort_iotag and lpfc_sli_issue_abort_iotag
   into a single generic lpfc_sli_issue_abort_iotag routine

 - Consolidate lpfc_sli4_abort_fcp_cmpl and lpfc_sli_abort_fcp_cmpl into a
   single generic lpfc_sli_abort_fcp_cmpl routine

 - Remove unused routine lpfc_get_iocb_from_iocbq

 - Conversion away from using SLI-3 iocb structures to set/access fields in
   common routines. Use the new generic get/set routines that were added.
   This move changes code from indirect structure references to using local
   variables with the generic routines.

 - Refactor routines when setting non-generic fields, to have both SLI3 and
   SLI4 specific sections. This replaces the set-as-SLI3 then translate to
   SLI4 behavior of the past.

Link: https://lore.kernel.org/r/20220225022308.16486-15-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/lpfc/lpfc.h

@@ -931,8 +931,6 @@ struct lpfc_hba {
 	void (*__lpfc_sli_release_iocbq)(struct lpfc_hba *,
 			 struct lpfc_iocbq *);
 	int (*lpfc_hba_down_post)(struct lpfc_hba *phba);
-	IOCB_t * (*lpfc_get_iocb_from_iocbq)
-		(struct lpfc_iocbq *);
 	void (*lpfc_scsi_cmd_iocb_cmpl)
 		(struct lpfc_hba *, struct lpfc_iocbq *, struct lpfc_iocbq *);
 
@@ -979,6 +977,9 @@ struct lpfc_hba {
 					   struct lpfc_dmabuf *bmp, u16 rpi,
 					   u16 ox_id, u32 num_entry, u8 rctl,
 					   u8 last_seq, u8 cr_cx_cmd);
+	void (*__lpfc_sli_prep_abort_xri)(struct lpfc_iocbq *cmdiocbq,
+					  u16 ulp_context, u16 iotag,
+					  u8 ulp_class, u16 cqid, bool ia);
 
 	/* expedite pool */
 	struct lpfc_epd_pool epd_pool;
@@ -1869,6 +1870,15 @@ u32 get_job_data_placed(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
 		return iocbq->iocb.un.genreq64.bdl.bdeSize;
 }
 
+static inline
+u32 get_job_abtsiotag(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
+{
+	if (phba->sli_rev == LPFC_SLI_REV4)
+		return iocbq->wqe.abort_cmd.wqe_com.abort_tag;
+	else
+		return iocbq->iocb.un.acxri.abortIoTag;
+}
+
 static inline
 u32 get_job_els_rsp64_did(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq)
 {

drivers/scsi/lpfc/lpfc_crtn.h

@@ -366,6 +366,9 @@ void lpfc_sli_prep_xmit_seq64(struct lpfc_hba *phba,
 			      struct lpfc_dmabuf *bmp, u16 rpi, u16 ox_id,
 			      u32 num_entry, u8 rctl, u8 last_seq,
 			      u8 cr_cx_cmd);
+void lpfc_sli_prep_abort_xri(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocbq,
+			     u16 ulp_context, u16 iotag, u8 ulp_class, u16 cqid,
+			     bool ia);
 struct lpfc_sglq *__lpfc_clear_active_sglq(struct lpfc_hba *phba, uint16_t xri);
 struct lpfc_sglq *__lpfc_sli_get_nvmet_sglq(struct lpfc_hba *phba,
 					    struct lpfc_iocbq *piocbq);

drivers/scsi/lpfc/lpfc_nvme.c

@@ -1746,9 +1746,8 @@ lpfc_nvme_abort_fcreq_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 			"6145 ABORT_XRI_CN completing on rpi x%x "
 			"original iotag x%x, abort cmd iotag x%x "
 			"req_tag x%x, status x%x, hwstatus x%x\n",
-			cmdiocb->iocb.un.acxri.abortContextTag,
-			cmdiocb->iocb.un.acxri.abortIoTag,
-			cmdiocb->iotag,
+			bf_get(wqe_ctxt_tag, &cmdiocb->wqe.generic.wqe_com),
+			get_job_abtsiotag(phba, cmdiocb), cmdiocb->iotag,
 			bf_get(lpfc_wcqe_c_request_tag, abts_cmpl),
 			bf_get(lpfc_wcqe_c_status, abts_cmpl),
 			bf_get(lpfc_wcqe_c_hw_status, abts_cmpl));

drivers/scsi/lpfc/lpfc_scsi.c

@@ -5929,15 +5929,13 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
 	}
 
 	lpfc_cmd->waitq = &waitq;
-	if (phba->sli_rev == LPFC_SLI_REV4) {
+	if (phba->sli_rev == LPFC_SLI_REV4)
 		spin_unlock(&pring_s4->ring_lock);
-		ret_val = lpfc_sli4_issue_abort_iotag(phba, iocb,
-						      lpfc_sli4_abort_fcp_cmpl);
-	} else {
+	else
 		pring = &phba->sli.sli3_ring[LPFC_FCP_RING];
-		ret_val = lpfc_sli_issue_abort_iotag(phba, pring, iocb,
-						     lpfc_sli_abort_fcp_cmpl);
-	}
+
+	ret_val = lpfc_sli_issue_abort_iotag(phba, pring, iocb,
+					     lpfc_sli_abort_fcp_cmpl);
 
 	/* Make sure HBA is alive */
 	lpfc_issue_hb_tmo(phba);

drivers/scsi/lpfc/lpfc_sli.h

@@ -76,11 +76,13 @@ struct lpfc_iocbq {
 	struct lpfc_wcqe_complete wcqe_cmpl;	/* WQE cmpl */
 
 	u32 unsol_rcv_len;	/* Receive len in usol path */
+
 	uint8_t num_bdes;
 	uint8_t abort_bls;	/* ABTS by initiator or responder */
-
+	u8 abort_rctl;		/* ACC or RJT flag */
 	uint8_t priority;	/* OAS priority */
 	uint8_t retry;		/* retry counter for IOCB cmd - if needed */
+
 	u32 cmd_flag;
 #define LPFC_IO_LIBDFC		1	/* libdfc iocb */
 #define LPFC_IO_WAKE		2	/* Synchronous I/O completed */