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authorJames Smart <jsmart2021@gmail.com>2017-02-13 00:52:31 +0300
committerMartin K. Petersen <martin.petersen@oracle.com>2017-02-23 02:41:43 +0300
commita0f2d3ef374fd8d2f51b8cc1ea723014b1aa2c9b (patch)
tree615bf6656716b5a582561c4a7cdf77644e932f3a /drivers/scsi/lpfc/lpfc_nportdisc.c
parent895427bd012ce5814fc9888c7c0ee9de44761833 (diff)
downloadlinux-a0f2d3ef374fd8d2f51b8cc1ea723014b1aa2c9b.tar.xz
scsi: lpfc: NVME Initiator: Merge into FC discovery
NVME Initiator: Merge into FC discovery Adds NVME PRLI support and Nameserver registrations and Queries for NVME Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <james.smart@broadcom.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_nportdisc.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_nportdisc.c177
1 files changed, 159 insertions, 18 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index 835ea9f78219..65e7b2433ee7 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -28,6 +28,9 @@
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport_fc.h>
+#include <scsi/fc/fc_fs.h>
+
+#include <linux/nvme-fc-driver.h>
#include "lpfc_hw4.h"
#include "lpfc_hw.h"
@@ -35,8 +38,9 @@
#include "lpfc_sli4.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
-#include "lpfc_scsi.h"
#include "lpfc.h"
+#include "lpfc_scsi.h"
+#include "lpfc_nvme.h"
#include "lpfc_logmsg.h"
#include "lpfc_crtn.h"
#include "lpfc_vport.h"
@@ -708,6 +712,7 @@ static void
lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct lpfc_iocbq *cmdiocb)
{
+ struct lpfc_hba *phba = vport->phba;
struct lpfc_dmabuf *pcmd;
uint32_t *lp;
PRLI *npr;
@@ -721,11 +726,19 @@ lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
ndlp->nlp_flag &= ~NLP_FIRSTBURST;
- if (npr->prliType == PRLI_FCP_TYPE) {
- if (npr->initiatorFunc)
- ndlp->nlp_type |= NLP_FCP_INITIATOR;
+ if ((npr->prliType == PRLI_FCP_TYPE) ||
+ (npr->prliType == PRLI_NVME_TYPE)) {
+ if (npr->initiatorFunc) {
+ if (npr->prliType == PRLI_FCP_TYPE)
+ ndlp->nlp_type |= NLP_FCP_INITIATOR;
+ if (npr->prliType == PRLI_NVME_TYPE)
+ ndlp->nlp_type |= NLP_NVME_INITIATOR;
+ }
if (npr->targetFunc) {
- ndlp->nlp_type |= NLP_FCP_TARGET;
+ if (npr->prliType == PRLI_FCP_TYPE)
+ ndlp->nlp_type |= NLP_FCP_TARGET;
+ if (npr->prliType == PRLI_NVME_TYPE)
+ ndlp->nlp_type |= NLP_NVME_TARGET;
if (npr->writeXferRdyDis)
ndlp->nlp_flag |= NLP_FIRSTBURST;
}
@@ -744,7 +757,8 @@ lpfc_rcv_prli(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
"rport rolechg: role:x%x did:x%x flg:x%x",
roles, ndlp->nlp_DID, ndlp->nlp_flag);
- fc_remote_port_rolechg(rport, roles);
+ if (phba->cfg_enable_fc4_type != LPFC_ENABLE_NVME)
+ fc_remote_port_rolechg(rport, roles);
}
}
@@ -1491,7 +1505,9 @@ lpfc_rcv_prli_reglogin_issue(struct lpfc_vport *vport,
{
struct lpfc_iocbq *cmdiocb = (struct lpfc_iocbq *) arg;
+ /* Initiator mode. */
lpfc_els_rsp_prli_acc(vport, cmdiocb, ndlp);
+
return ndlp->nlp_state;
}
@@ -1574,9 +1590,11 @@ lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
uint32_t evt)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+ struct lpfc_hba *phba = vport->phba;
LPFC_MBOXQ_t *pmb = (LPFC_MBOXQ_t *) arg;
MAILBOX_t *mb = &pmb->u.mb;
uint32_t did = mb->un.varWords[1];
+ int rc = 0;
if (mb->mbxStatus) {
/* RegLogin failed */
@@ -1611,19 +1629,52 @@ lpfc_cmpl_reglogin_reglogin_issue(struct lpfc_vport *vport,
}
/* SLI4 ports have preallocated logical rpis. */
- if (vport->phba->sli_rev < LPFC_SLI_REV4)
+ if (phba->sli_rev < LPFC_SLI_REV4)
ndlp->nlp_rpi = mb->un.varWords[0];
ndlp->nlp_flag |= NLP_RPI_REGISTERED;
/* Only if we are not a fabric nport do we issue PRLI */
- if (!(ndlp->nlp_type & NLP_FABRIC)) {
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_DISCOVERY,
+ "3066 RegLogin Complete on x%x x%x x%x\n",
+ did, ndlp->nlp_type, ndlp->nlp_fc4_type);
+ if (!(ndlp->nlp_type & NLP_FABRIC) &&
+ (phba->nvmet_support == 0)) {
+ /* The driver supports FCP and NVME concurrently. If the
+ * ndlp's nlp_fc4_type is still zero, the driver doesn't
+ * know what PRLI to send yet. Figure that out now and
+ * call PRLI depending on the outcome.
+ */
+ if (vport->fc_flag & FC_PT2PT) {
+ /* If we are pt2pt, there is no Fabric to determine
+ * the FC4 type of the remote nport. So if NVME
+ * is configured try it.
+ */
+ ndlp->nlp_fc4_type |= NLP_FC4_FCP;
+ if ((phba->cfg_enable_fc4_type == LPFC_ENABLE_BOTH) ||
+ (phba->cfg_enable_fc4_type == LPFC_ENABLE_NVME)) {
+ ndlp->nlp_fc4_type |= NLP_FC4_NVME;
+ /* We need to update the localport also */
+ /* todo: init: revise localport nvme
+ * attributes
+ */
+ }
+
+ } else if (ndlp->nlp_fc4_type == 0) {
+ rc = lpfc_ns_cmd(vport, SLI_CTNS_GFT_ID,
+ 0, ndlp->nlp_DID);
+ return ndlp->nlp_state;
+ }
+
ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_PRLI_ISSUE);
lpfc_issue_els_prli(vport, ndlp, 0);
} else {
- ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
- lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
+ /* Only Fabric ports should transition */
+ if (ndlp->nlp_type & NLP_FABRIC) {
+ ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
+ }
}
return ndlp->nlp_state;
}
@@ -1664,7 +1715,7 @@ lpfc_device_recov_reglogin_issue(struct lpfc_vport *vport,
ndlp->nlp_prev_state = NLP_STE_REG_LOGIN_ISSUE;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_NPR_NODE);
spin_lock_irq(shost->host_lock);
- ndlp->nlp_flag |= NLP_IGNR_REG_CMPL;
+
ndlp->nlp_flag &= ~(NLP_NODEV_REMOVE | NLP_NPR_2B_DISC);
spin_unlock_irq(shost->host_lock);
lpfc_disc_set_adisc(vport, ndlp);
@@ -1740,10 +1791,23 @@ lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
struct lpfc_hba *phba = vport->phba;
IOCB_t *irsp;
PRLI *npr;
+ struct lpfc_nvme_prli *nvpr;
+ void *temp_ptr;
cmdiocb = (struct lpfc_iocbq *) arg;
rspiocb = cmdiocb->context_un.rsp_iocb;
- npr = (PRLI *)lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
+
+ /* A solicited PRLI is either FCP or NVME. The PRLI cmd/rsp
+ * format is different so NULL the two PRLI types so that the
+ * driver correctly gets the correct context.
+ */
+ npr = NULL;
+ nvpr = NULL;
+ temp_ptr = lpfc_check_elscmpl_iocb(phba, cmdiocb, rspiocb);
+ if (cmdiocb->iocb_flag & LPFC_PRLI_FCP_REQ)
+ npr = (PRLI *) temp_ptr;
+ else if (cmdiocb->iocb_flag & LPFC_PRLI_NVME_REQ)
+ nvpr = (struct lpfc_nvme_prli *) temp_ptr;
irsp = &rspiocb->iocb;
if (irsp->ulpStatus) {
@@ -1751,7 +1815,21 @@ lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
vport->cfg_restrict_login) {
goto out;
}
+
+ /* The LS Req had some error. Don't let this be a
+ * target.
+ */
+ if ((ndlp->fc4_prli_sent == 1) &&
+ (ndlp->nlp_state == NLP_STE_PRLI_ISSUE) &&
+ (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_FCP_INITIATOR)))
+ /* The FCP PRLI completed successfully but
+ * the NVME PRLI failed. Since they are sent in
+ * succession, allow the FCP to complete.
+ */
+ goto out_err;
+
ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
+ ndlp->nlp_type |= NLP_FCP_INITIATOR;
lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
return ndlp->nlp_state;
}
@@ -1759,9 +1837,16 @@ lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
/* Check out PRLI rsp */
ndlp->nlp_type &= ~(NLP_FCP_TARGET | NLP_FCP_INITIATOR);
ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
+
+ /* NVME or FCP first burst must be negotiated for each PRLI. */
ndlp->nlp_flag &= ~NLP_FIRSTBURST;
- if ((npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
+ ndlp->nvme_fb_size = 0;
+ if (npr && (npr->acceptRspCode == PRLI_REQ_EXECUTED) &&
(npr->prliType == PRLI_FCP_TYPE)) {
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
+ "6028 FCP NPR PRLI Cmpl Init %d Target %d\n",
+ npr->initiatorFunc,
+ npr->targetFunc);
if (npr->initiatorFunc)
ndlp->nlp_type |= NLP_FCP_INITIATOR;
if (npr->targetFunc) {
@@ -1771,6 +1856,49 @@ lpfc_cmpl_prli_prli_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
}
if (npr->Retry)
ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
+
+ /* PRLI completed. Decrement count. */
+ ndlp->fc4_prli_sent--;
+ } else if (nvpr &&
+ (bf_get_be32(prli_acc_rsp_code, nvpr) ==
+ PRLI_REQ_EXECUTED) &&
+ (bf_get_be32(prli_type_code, nvpr) ==
+ PRLI_NVME_TYPE)) {
+
+ /* Complete setting up the remote ndlp personality. */
+ if (bf_get_be32(prli_init, nvpr))
+ ndlp->nlp_type |= NLP_NVME_INITIATOR;
+
+ /* Target driver cannot solicit NVME FB. */
+ if (bf_get_be32(prli_tgt, nvpr)) {
+ ndlp->nlp_type |= NLP_NVME_TARGET;
+ if ((bf_get_be32(prli_fba, nvpr) == 1) &&
+ (bf_get_be32(prli_fb_sz, nvpr) > 0) &&
+ (phba->cfg_nvme_enable_fb) &&
+ (!phba->nvmet_support)) {
+ /* Both sides support FB. The target's first
+ * burst size is a 512 byte encoded value.
+ */
+ ndlp->nlp_flag |= NLP_FIRSTBURST;
+ ndlp->nvme_fb_size = bf_get_be32(prli_fb_sz,
+ nvpr);
+ }
+ }
+
+ if (bf_get_be32(prli_recov, nvpr))
+ ndlp->nlp_fcp_info |= NLP_FCP_2_DEVICE;
+
+ lpfc_printf_vlog(vport, KERN_INFO, LOG_NVME_DISC,
+ "6029 NVME PRLI Cmpl w1 x%08x "
+ "w4 x%08x w5 x%08x flag x%x, "
+ "fcp_info x%x nlp_type x%x\n",
+ be32_to_cpu(nvpr->word1),
+ be32_to_cpu(nvpr->word4),
+ be32_to_cpu(nvpr->word5),
+ ndlp->nlp_flag, ndlp->nlp_fcp_info,
+ ndlp->nlp_type);
+ /* PRLI completed. Decrement count. */
+ ndlp->fc4_prli_sent--;
}
if (!(ndlp->nlp_type & NLP_FCP_TARGET) &&
(vport->port_type == LPFC_NPIV_PORT) &&
@@ -1786,11 +1914,24 @@ out:
return ndlp->nlp_state;
}
- ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
- if (ndlp->nlp_type & NLP_FCP_TARGET)
- lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
- else
- lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
+out_err:
+ /* The ndlp state cannot move to MAPPED or UNMAPPED before all PRLIs
+ * are complete.
+ */
+ if (ndlp->fc4_prli_sent == 0) {
+ ndlp->nlp_prev_state = NLP_STE_PRLI_ISSUE;
+ if (ndlp->nlp_type & (NLP_FCP_TARGET | NLP_NVME_TARGET))
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_MAPPED_NODE);
+ else
+ lpfc_nlp_set_state(vport, ndlp, NLP_STE_UNMAPPED_NODE);
+ } else
+ lpfc_printf_vlog(vport,
+ KERN_INFO, LOG_ELS,
+ "3067 PRLI's still outstanding "
+ "on x%06x - count %d, Pend Node Mode "
+ "transition...\n",
+ ndlp->nlp_DID, ndlp->fc4_prli_sent);
+
return ndlp->nlp_state;
}