scsi: qla2xxx: Serialize GPNID for multiple RSCN
GPNID is triggered by RSCN. For multiple RSCNs of the same affected
NPORT ID, serialize the GPNID to prevent confusion.
Fixes: 726b854870
("qla2xxx: Add framework for async fabric discovery")
Cc: <stable@vger.kernel.org> # 4.10+
Signed-off-by: Quinn Tran <quinn.tran@cavium.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
parent
25ad76b703
commit
2d73ac6102
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@ -315,6 +315,29 @@ struct srb_cmd {
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/* To identify if a srb is of T10-CRC type. @sp => srb_t pointer */
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#define IS_PROT_IO(sp) (sp->flags & SRB_CRC_CTX_DSD_VALID)
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/*
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* 24 bit port ID type definition.
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*/
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typedef union {
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uint32_t b24 : 24;
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struct {
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#ifdef __BIG_ENDIAN
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uint8_t domain;
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uint8_t area;
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uint8_t al_pa;
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#elif defined(__LITTLE_ENDIAN)
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uint8_t al_pa;
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uint8_t area;
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uint8_t domain;
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#else
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#error "__BIG_ENDIAN or __LITTLE_ENDIAN must be defined!"
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#endif
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uint8_t rsvd_1;
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} b;
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} port_id_t;
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#define INVALID_PORT_ID 0xFFFFFF
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struct els_logo_payload {
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uint8_t opcode;
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uint8_t rsvd[3];
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@ -338,6 +361,7 @@ struct ct_arg {
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u32 rsp_size;
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void *req;
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void *rsp;
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port_id_t id;
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};
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/*
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@ -499,6 +523,7 @@ typedef struct srb {
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const char *name;
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int iocbs;
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struct qla_qpair *qpair;
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struct list_head elem;
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u32 gen1; /* scratch */
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u32 gen2; /* scratch */
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union {
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@ -2164,28 +2189,6 @@ struct imm_ntfy_from_isp {
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#define REQUEST_ENTRY_SIZE (sizeof(request_t))
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/*
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* 24 bit port ID type definition.
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*/
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typedef union {
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uint32_t b24 : 24;
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struct {
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#ifdef __BIG_ENDIAN
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uint8_t domain;
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uint8_t area;
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uint8_t al_pa;
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#elif defined(__LITTLE_ENDIAN)
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uint8_t al_pa;
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uint8_t area;
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uint8_t domain;
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#else
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#error "__BIG_ENDIAN or __LITTLE_ENDIAN must be defined!"
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#endif
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uint8_t rsvd_1;
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} b;
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} port_id_t;
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#define INVALID_PORT_ID 0xFFFFFF
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/*
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* Switch info gathering structure.
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@ -4252,6 +4255,7 @@ typedef struct scsi_qla_host {
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uint8_t n2n_node_name[WWN_SIZE];
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uint8_t n2n_port_name[WWN_SIZE];
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uint16_t n2n_id;
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struct list_head gpnid_list;
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} scsi_qla_host_t;
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struct qla27xx_image_status {
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@ -3221,16 +3221,17 @@ static void qla2x00_async_gpnid_sp_done(void *s, int res)
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(struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp;
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struct event_arg ea;
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struct qla_work_evt *e;
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unsigned long flags;
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if (res)
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ql_dbg(ql_dbg_disc, vha, 0x2066,
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"Async done-%s fail res %x ID %3phC. %8phC\n",
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sp->name, res, ct_req->req.port_id.port_id,
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"Async done-%s fail res %x rscn gen %d ID %3phC. %8phC\n",
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sp->name, res, sp->gen1, ct_req->req.port_id.port_id,
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ct_rsp->rsp.gpn_id.port_name);
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else
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ql_dbg(ql_dbg_disc, vha, 0x2066,
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"Async done-%s good ID %3phC. %8phC\n",
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sp->name, ct_req->req.port_id.port_id,
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"Async done-%s good rscn gen %d ID %3phC. %8phC\n",
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sp->name, sp->gen1, ct_req->req.port_id.port_id,
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ct_rsp->rsp.gpn_id.port_name);
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memset(&ea, 0, sizeof(ea));
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@ -3242,11 +3243,20 @@ static void qla2x00_async_gpnid_sp_done(void *s, int res)
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ea.rc = res;
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ea.event = FCME_GPNID_DONE;
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spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
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list_del(&sp->elem);
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spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
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if (res) {
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if (res == QLA_FUNCTION_TIMEOUT)
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qla24xx_post_gpnid_work(sp->vha, &ea.id);
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sp->free(sp);
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return;
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} else if (sp->gen1) {
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/* There was anoter RSNC for this Nport ID */
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qla24xx_post_gpnid_work(sp->vha, &ea.id);
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sp->free(sp);
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return;
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}
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qla2x00_fcport_event_handler(vha, &ea);
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@ -3282,8 +3292,9 @@ int qla24xx_async_gpnid(scsi_qla_host_t *vha, port_id_t *id)
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{
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int rval = QLA_FUNCTION_FAILED;
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struct ct_sns_req *ct_req;
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srb_t *sp;
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srb_t *sp, *tsp;
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struct ct_sns_pkt *ct_sns;
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unsigned long flags;
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if (!vha->flags.online)
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goto done;
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@ -3294,8 +3305,22 @@ int qla24xx_async_gpnid(scsi_qla_host_t *vha, port_id_t *id)
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sp->type = SRB_CT_PTHRU_CMD;
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sp->name = "gpnid";
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sp->u.iocb_cmd.u.ctarg.id = *id;
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sp->gen1 = 0;
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qla2x00_init_timer(sp, qla2x00_get_async_timeout(vha) + 2);
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spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
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list_for_each_entry(tsp, &vha->gpnid_list, elem) {
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if (tsp->u.iocb_cmd.u.ctarg.id.b24 == id->b24) {
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tsp->gen1++;
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spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
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sp->free(sp);
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goto done;
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}
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}
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list_add_tail(&sp->elem, &vha->gpnid_list);
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spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
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sp->u.iocb_cmd.u.ctarg.req = dma_alloc_coherent(&vha->hw->pdev->dev,
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sizeof(struct ct_sns_pkt), &sp->u.iocb_cmd.u.ctarg.req_dma,
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GFP_KERNEL);
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@ -1574,7 +1574,7 @@ qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
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/* borrowing sts_entry_24xx.comp_status.
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same location as ct_entry_24xx.comp_status
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*/
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res = qla2x00_chk_ms_status(vha, (ms_iocb_entry_t *)pkt,
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res = qla2x00_chk_ms_status(sp->vha, (ms_iocb_entry_t *)pkt,
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(struct ct_sns_rsp *)sp->u.iocb_cmd.u.ctarg.rsp,
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sp->name);
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sp->done(sp, res);
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@ -4515,6 +4515,7 @@ struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
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INIT_LIST_HEAD(&vha->qp_list);
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INIT_LIST_HEAD(&vha->gnl.fcports);
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INIT_LIST_HEAD(&vha->nvme_rport_list);
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INIT_LIST_HEAD(&vha->gpnid_list);
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spin_lock_init(&vha->work_lock);
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spin_lock_init(&vha->cmd_list_lock);
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