[PATCH 18/26] lpfc: Register for Application Services FC-4 type in Fabric topology

From: James Smart <jsmart2021@gmail.com>
To: linux-scsi@vger.kernel.org
Cc: James Smart <jsmart2021@gmail.com>, Justin Tee <justin.tee@broadcom.com>
Subject: [PATCH 18/26] lpfc: Register for Application Services FC-4 type in Fabric topology
Date: Tue, 12 Apr 2022 15:20:00 -0700	[thread overview]
Message-ID: <20220412222008.126521-19-jsmart2021@gmail.com> (raw)
In-Reply-To: <20220412222008.126521-1-jsmart2021@gmail.com>

Add new FC-4 type 0x60 Application Services for fabric registration when
VMID is enabled.

Modified rft struture to indicate __be format. Removed redundant ipReg
variable as it was not used.

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>
---
 drivers/scsi/lpfc/lpfc_ct.c | 26 ++++++++++++++------------
 drivers/scsi/lpfc/lpfc_hw.h | 36 ++++++++++++++++++------------------
 2 files changed, 32 insertions(+), 30 deletions(-)

diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index 8df5ba3ed482..c74833ed78c6 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -2018,28 +2018,30 @@ lpfc_ns_cmd(struct lpfc_vport *vport, int cmdcode,
 		vport->ct_flags &= ~FC_CT_RFT_ID;
 		CtReq->CommandResponse.bits.CmdRsp =
 		    cpu_to_be16(SLI_CTNS_RFT_ID);
-		CtReq->un.rft.PortId = cpu_to_be32(vport->fc_myDID);
+		CtReq->un.rft.port_id = cpu_to_be32(vport->fc_myDID);
+
+		/* Register Application Services type if vmid enabled. */
+		if (phba->cfg_vmid_app_header)
+			CtReq->un.rft.app_serv_reg =
+				cpu_to_be32(RFT_APP_SERV_REG);
 
 		/* Register FC4 FCP type if enabled.  */
 		if (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH ||
 		    vport->cfg_enable_fc4_type == LPFC_ENABLE_FCP)
-			CtReq->un.rft.fcpReg = 1;
+			CtReq->un.rft.fcp_reg = cpu_to_be32(RFT_FCP_REG);
 
-		/* Register NVME type if enabled.  Defined LE and swapped.
-		 * rsvd[0] is used as word1 because of the hard-coded
-		 * word0 usage in the ct_request data structure.
-		 */
+		/* Register NVME type if enabled. */
 		if (vport->cfg_enable_fc4_type == LPFC_ENABLE_BOTH ||
 		    vport->cfg_enable_fc4_type == LPFC_ENABLE_NVME)
-			CtReq->un.rft.rsvd[0] =
-				cpu_to_be32(LPFC_FC4_TYPE_BITMASK);
+			CtReq->un.rft.nvme_reg = cpu_to_be32(RFT_NVME_REG);
 
 		ptr = (uint32_t *)CtReq;
 		lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
-				 "6433 Issue RFT (%s %s): %08x %08x %08x %08x "
-				 "%08x %08x %08x %08x\n",
-				 CtReq->un.rft.fcpReg ? "FCP" : " ",
-				 CtReq->un.rft.rsvd[0] ? "NVME" : " ",
+				 "6433 Issue RFT (%s %s %s): %08x %08x %08x "
+				 "%08x %08x %08x %08x %08x\n",
+				 CtReq->un.rft.fcp_reg ? "FCP" : " ",
+				 CtReq->un.rft.nvme_reg ? "NVME" : " ",
+				 CtReq->un.rft.app_serv_reg ? "APPS" : " ",
 				 *ptr, *(ptr + 1), *(ptr + 2), *(ptr + 3),
 				 *(ptr + 4), *(ptr + 5),
 				 *(ptr + 6), *(ptr + 7));
diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index d6050f3c9efe..2f5537f57846 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -97,6 +97,18 @@ union CtCommandResponse {
 #define FC4_FEATURE_INIT	0x2
 #define FC4_FEATURE_NVME_DISC	0x4
 
+enum rft_word0 {
+	RFT_FCP_REG	= (0x1 << 8),
+};
+
+enum rft_word1 {
+	RFT_NVME_REG	= (0x1 << 8),
+};
+
+enum rft_word3 {
+	RFT_APP_SERV_REG	= (0x1 << 0),
+};
+
 struct lpfc_sli_ct_request {
 	/* Structure is in Big Endian format */
 	union CtRevisionId RevisionId;
@@ -131,25 +143,13 @@ struct lpfc_sli_ct_request {
 			uint8_t Fc4Type;
 		} gid_ff;
 		struct rft {
-			uint32_t PortId;	/* For RFT_ID requests */
-
-#ifdef __BIG_ENDIAN_BITFIELD
-			uint32_t rsvd0:16;
-			uint32_t rsvd1:7;
-			uint32_t fcpReg:1;	/* Type 8 */
-			uint32_t rsvd2:2;
-			uint32_t ipReg:1;	/* Type 5 */
-			uint32_t rsvd3:5;
-#else	/*  __LITTLE_ENDIAN_BITFIELD */
-			uint32_t rsvd0:16;
-			uint32_t fcpReg:1;	/* Type 8 */
-			uint32_t rsvd1:7;
-			uint32_t rsvd3:5;
-			uint32_t ipReg:1;	/* Type 5 */
-			uint32_t rsvd2:2;
-#endif
+			__be32 port_id; /* For RFT_ID requests */
 
-			uint32_t rsvd[7];
+			__be32 fcp_reg;	/* rsvd 31:9, fcp_reg 8, rsvd 7:0 */
+			__be32 nvme_reg; /* rsvd 31:9, nvme_reg 8, rsvd 7:0 */
+			__be32 word2;
+			__be32 app_serv_reg; /* rsvd 31:1, app_serv_reg 0 */
+			__be32 word[4];
 		} rft;
 		struct rnn {
 			uint32_t PortId;	/* For RNN_ID requests */
-- 
2.26.2

