[SCSI] lpfc 8.3.0 : Rework RSCN netlink event to send entire RSCN payload

Rework RSCN netlink event to send entire RSCN payload

Also replaces (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX) with
LPFC_NL_VENDOR_ID

Signed-off-by: James Smart <James.Smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

7 files changed, 126 insertions, 26 deletions

diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index 630bd28fb997..50c2faa50f0c 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -3887,6 +3887,49 @@ lpfc_rscn_recovery_check(struct lpfc_vport *vport)
 }
 
 /**
+ * lpfc_send_rscn_event: Send an RSCN event to management application.
+ * @vport: pointer to a host virtual N_Port data structure.
+ * @cmdiocb: pointer to lpfc command iocb data structure.
+ *
+ * lpfc_send_rscn_event sends an RSCN netlink event to management
+ * applications.
+ */
+static void
+lpfc_send_rscn_event(struct lpfc_vport *vport,
+                struct lpfc_iocbq *cmdiocb)
+{
+        struct lpfc_dmabuf *pcmd;
+        struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+        uint32_t *payload_ptr;
+        uint32_t payload_len;
+        struct lpfc_rscn_event_header *rscn_event_data;
+
+        pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
+        payload_ptr = (uint32_t *) pcmd->virt;
+        payload_len = be32_to_cpu(*payload_ptr & ~ELS_CMD_MASK);
+
+        rscn_event_data = kmalloc(sizeof(struct lpfc_rscn_event_header) +
+                payload_len, GFP_KERNEL);
+        if (!rscn_event_data) {
+                lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+                        "0147 Failed to allocate memory for RSCN event\n");
+                return;
+        }
+        rscn_event_data->event_type = FC_REG_RSCN_EVENT;
+        rscn_event_data->payload_length = payload_len;
+        memcpy(rscn_event_data->rscn_payload, payload_ptr,
+                payload_len);
+
+        fc_host_post_vendor_event(shost,
+                fc_get_event_number(),
+                sizeof(struct lpfc_els_event_header) + payload_len,
+                (char *)rscn_event_data,
+                LPFC_NL_VENDOR_ID);
+
+        kfree(rscn_event_data);
+}
+
+/**
  * lpfc_els_rcv_rscn: Process an unsolicited rscn iocb.
  * @vport: pointer to a host virtual N_Port data structure.
  * @cmdiocb: pointer to lpfc command iocb data structure.
@@ -3933,6 +3976,10 @@ lpfc_els_rcv_rscn(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
                          "0214 RSCN received Data: x%x x%x x%x x%x\n",
                          vport->fc_flag, payload_len, *lp,
                          vport->fc_rscn_id_cnt);
+
+        /* Send an RSCN event to the management application */
+        lpfc_send_rscn_event(vport, cmdiocb);
+
         for (i = 0; i < payload_len/sizeof(uint32_t); i++)
                 fc_host_post_event(shost, fc_get_event_number(),
                         FCH_EVT_RSCN, lp[i]);
@@ -5128,7 +5175,7 @@ lpfc_send_els_failure_event(struct lpfc_hba *phba,
                         fc_get_event_number(),
                         sizeof(lsrjt_event),
                         (char *)&lsrjt_event,
-                        SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
+                        LPFC_NL_VENDOR_ID);
                 return;
         }
         if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) ||
@@ -5146,7 +5193,7 @@ lpfc_send_els_failure_event(struct lpfc_hba *phba,
                         fc_get_event_number(),
                         sizeof(fabric_event),
                         (char *)&fabric_event,
-                        SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
+                        LPFC_NL_VENDOR_ID);
                 return;
         }
 
@@ -5164,32 +5211,68 @@ lpfc_send_els_failure_event(struct lpfc_hba *phba,
 static void
 lpfc_send_els_event(struct lpfc_vport *vport,
                     struct lpfc_nodelist *ndlp,
-                    uint32_t cmd)
+                    uint32_t *payload)
 {
-        struct lpfc_els_event_header els_data;
+        struct lpfc_els_event_header *els_data = NULL;
+        struct lpfc_logo_event *logo_data = NULL;
         struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
 
-        els_data.event_type = FC_REG_ELS_EVENT;
-        switch (cmd) {
+        if (*payload == ELS_CMD_LOGO) {
+                logo_data = kmalloc(sizeof(struct lpfc_logo_event), GFP_KERNEL);
+                if (!logo_data) {
+                        lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+                                "0148 Failed to allocate memory "
+                                "for LOGO event\n");
+                        return;
+                }
+                els_data = &logo_data->header;
+        } else {
+                els_data = kmalloc(sizeof(struct lpfc_els_event_header),
+                        GFP_KERNEL);
+                if (!els_data) {
+                        lpfc_printf_vlog(vport, KERN_ERR, LOG_ELS,
+                                "0149 Failed to allocate memory "
+                                "for ELS event\n");
+                        return;
+                }
+        }
+        els_data->event_type = FC_REG_ELS_EVENT;
+        switch (*payload) {
         case ELS_CMD_PLOGI:
-                els_data.subcategory = LPFC_EVENT_PLOGI_RCV;
+                els_data->subcategory = LPFC_EVENT_PLOGI_RCV;
                 break;
         case ELS_CMD_PRLO:
-                els_data.subcategory = LPFC_EVENT_PRLO_RCV;
+                els_data->subcategory = LPFC_EVENT_PRLO_RCV;
                 break;
         case ELS_CMD_ADISC:
-                els_data.subcategory = LPFC_EVENT_ADISC_RCV;
+                els_data->subcategory = LPFC_EVENT_ADISC_RCV;
+                break;
+        case ELS_CMD_LOGO:
+                els_data->subcategory = LPFC_EVENT_LOGO_RCV;
+                /* Copy the WWPN in the LOGO payload */
+                memcpy(logo_data->logo_wwpn, &payload[2],
+                        sizeof(struct lpfc_name));
                 break;
         default:
                 return;
         }
-        memcpy(els_data.wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
-        memcpy(els_data.wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
-        fc_host_post_vendor_event(shost,
-                fc_get_event_number(),
-                sizeof(els_data),
-                (char *)&els_data,
-                SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
+        memcpy(els_data->wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
+        memcpy(els_data->wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
+        if (*payload == ELS_CMD_LOGO) {
+                fc_host_post_vendor_event(shost,
+                        fc_get_event_number(),
+                        sizeof(struct lpfc_logo_event),
+                        (char *)logo_data,
+                        LPFC_NL_VENDOR_ID);
+                kfree(logo_data);
+        } else {
+                fc_host_post_vendor_event(shost,
+                        fc_get_event_number(),
+                        sizeof(struct lpfc_els_event_header),
+                        (char *)els_data,
+                        LPFC_NL_VENDOR_ID);
+                kfree(els_data);
+        }
 
         return;
 }
@@ -5296,7 +5379,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
                 phba->fc_stat.elsRcvPLOGI++;
                 ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
 
-                lpfc_send_els_event(vport, ndlp, cmd);
+                lpfc_send_els_event(vport, ndlp, payload);
                 if (vport->port_state < LPFC_DISC_AUTH) {
                         if (!(phba->pport->fc_flag & FC_PT2PT) ||
                                 (phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
@@ -5334,6 +5417,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
                         did, vport->port_state, ndlp->nlp_flag);
 
                 phba->fc_stat.elsRcvLOGO++;
+                lpfc_send_els_event(vport, ndlp, payload);
                 if (vport->port_state < LPFC_DISC_AUTH) {
                         rjt_err = LSRJT_UNABLE_TPC;
                         break;
@@ -5346,7 +5430,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
                         did, vport->port_state, ndlp->nlp_flag);
 
                 phba->fc_stat.elsRcvPRLO++;
-                lpfc_send_els_event(vport, ndlp, cmd);
+                lpfc_send_els_event(vport, ndlp, payload);
                 if (vport->port_state < LPFC_DISC_AUTH) {
                         rjt_err = LSRJT_UNABLE_TPC;
                         break;
@@ -5364,7 +5448,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
                         "RCV ADISC:       did:x%x/ste:x%x flg:x%x",
                         did, vport->port_state, ndlp->nlp_flag);
 
-                lpfc_send_els_event(vport, ndlp, cmd);
+                lpfc_send_els_event(vport, ndlp, payload);
                 phba->fc_stat.elsRcvADISC++;
                 if (vport->port_state < LPFC_DISC_AUTH) {
                         rjt_err = LSRJT_UNABLE_TPC;
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index a1a70d9ffc2a..65fddf4ac3cf 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -387,7 +387,7 @@ lpfc_send_fastpath_evt(struct lpfc_hba *phba,
                 fc_get_event_number(),
                 evt_data_size,
                 evt_data,
-                SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
+                LPFC_NL_VENDOR_ID);
 
         lpfc_free_fast_evt(phba, fast_evt_data);
         return;
diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index 5de5dabbbee6..81d1df418e47 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -65,6 +65,9 @@
 #define SLI3_IOCB_RSP_SIZE      64
 
 
+/* vendor ID used in SCSI netlink calls */
+#define LPFC_NL_VENDOR_ID (SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX)
+
 /* Common Transport structures and definitions */
 
 union CtRevisionId {
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 909be3301bba..1e2a9521853f 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -833,8 +833,7 @@ lpfc_handle_eratt(struct lpfc_hba *phba)
         fc_host_post_vendor_event(shost, fc_get_event_number(),
                                   sizeof(board_event),
                                   (char *) &board_event,
-                                  SCSI_NL_VID_TYPE_PCI
-                                  | PCI_VENDOR_ID_EMULEX);
+                                  LPFC_NL_VENDOR_ID);
 
         if (phba->work_hs & HS_FFER6) {
                 /* Re-establishing Link */
@@ -2646,7 +2645,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
         fc_host_post_vendor_event(shost, fc_get_event_number(),
                 sizeof(adapter_event),
                 (char *) &adapter_event,
-                SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
+                LPFC_NL_VENDOR_ID);
 
         scsi_scan_host(shost);
 
diff --git a/drivers/scsi/lpfc/lpfc_nl.h b/drivers/scsi/lpfc/lpfc_nl.h
index 1accb5a9f4e6..991ad53bd3ce 100644
--- a/drivers/scsi/lpfc/lpfc_nl.h
+++ b/drivers/scsi/lpfc/lpfc_nl.h
@@ -52,6 +52,13 @@
  * The payload sent via the fc transport is one-way driver->application.
  */
 
+/* RSCN event header */
+struct lpfc_rscn_event_header {
+        uint32_t event_type;
+        uint32_t payload_length; /* RSCN data length in bytes */
+        uint32_t rscn_payload[];
+};
+
 /* els event header */
 struct lpfc_els_event_header {
         uint32_t event_type;
@@ -65,6 +72,7 @@ struct lpfc_els_event_header {
 #define LPFC_EVENT_PRLO_RCV             0x02
 #define LPFC_EVENT_ADISC_RCV            0x04
 #define LPFC_EVENT_LSRJT_RCV            0x08
+#define LPFC_EVENT_LOGO_RCV             0x10
 
 /* special els lsrjt event */
 struct lpfc_lsrjt_event {
@@ -74,6 +82,11 @@ struct lpfc_lsrjt_event {
         uint32_t explanation;
 };
 
+/* special els logo event */
+struct lpfc_logo_event {
+        struct lpfc_els_event_header header;
+        uint8_t logo_wwpn[8];
+};
 
 /* fabric event header */
 struct lpfc_fabric_event_header {
@@ -125,6 +138,7 @@ struct lpfc_scsi_varqueuedepth_event {
 /* special case scsi check condition event */
 struct lpfc_scsi_check_condition_event {
         struct lpfc_scsi_event_header scsi_event;
+        uint8_t opcode;
         uint8_t sense_key;
         uint8_t asc;
         uint8_t ascq;
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index bd1867411821..b7896609800f 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -1560,7 +1560,7 @@ lpfc_device_reset_handler(struct scsi_cmnd *cmnd)
                 fc_get_event_number(),
                 sizeof(scsi_event),
                 (char *)&scsi_event,
-                SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
+                LPFC_NL_VENDOR_ID);
 
         if (!rdata || pnode->nlp_state != NLP_STE_MAPPED_NODE) {
                 lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP,
@@ -1657,7 +1657,7 @@ lpfc_bus_reset_handler(struct scsi_cmnd *cmnd)
                 fc_get_event_number(),
                 sizeof(scsi_event),
                 (char *)&scsi_event,
-                SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
+                LPFC_NL_VENDOR_ID);
 
         lpfc_block_error_handler(cmnd);
         /*
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 8ab5babdeebc..215f9a56f824 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -4005,7 +4005,7 @@ lpfc_sli_async_event_handler(struct lpfc_hba * phba,
         shost = lpfc_shost_from_vport(phba->pport);
         fc_host_post_vendor_event(shost, fc_get_event_number(),
                 sizeof(temp_event_data), (char *) &temp_event_data,
-                SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
+                LPFC_NL_VENDOR_ID);
 
 }