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scsi: lpfc: Reject received PRLIs with only initiator fcn role for NPIV ports

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Currently, NPIV ports send PRLI_ACC to all received unsolicited PRLI
requests.  For an NPIV port, there is no point to PRLI_ACC if the received
PRLI request has the initiator function bit set and the target function bit
unset.  Modify the lpfc_rcv_prli_support_check() routine to send a PRLI_RJT
in such cases.  NPIV ports are expected to send PRLI_ACC only if the Target
function bit is set.

Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Link: https://lore.kernel.org/r/20231009161812.97232-4-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Justin Tee 2023-10-09 09:18:09 -07:00 committed by Martin K. Petersen
parent d472a76603
commit 12e896c742
1 changed files with 14 additions and 4 deletions
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18
drivers/scsi/lpfc/lpfc_nportdisc.c
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@ -934,25 +934,35 @@ lpfc_rcv_prli_support_check(struct lpfc_vport *vport,
struct ls_rjt stat;
uint32_t *payload;
uint32_t cmd;
PRLI *npr;
payload = cmdiocb->cmd_dmabuf->virt;
cmd = *payload;
npr = (PRLI *)((uint8_t *)payload + sizeof(uint32_t));
if (vport->phba->nvmet_support) {
/* Must be a NVME PRLI */
if (cmd == ELS_CMD_PRLI)
if (cmd == ELS_CMD_PRLI)
goto out;
} else {
/* Initiator mode. */
if (!vport->nvmei_support && (cmd == ELS_CMD_NVMEPRLI))
goto out;
/* NPIV ports will RJT initiator only functions */
if (vport->port_type == LPFC_NPIV_PORT &&
npr->initiatorFunc && !npr->targetFunc)
goto out;
}
return 1;
out:
lpfc_printf_vlog(vport, KERN_WARNING, LOG_NVME_DISC,
lpfc_printf_vlog(vport, KERN_WARNING, LOG_DISCOVERY,
"6115 Rcv PRLI (%x) check failed: ndlp rpi %d "
"state x%x flags x%x\n",
"state x%x flags x%x port_type: x%x "
"npr->initfcn: x%x npr->tgtfcn: x%x\n",
cmd, ndlp->nlp_rpi, ndlp->nlp_state,
ndlp->nlp_flag);
ndlp->nlp_flag, vport->port_type,
npr->initiatorFunc, npr->targetFunc);
memset(&stat, 0, sizeof(struct ls_rjt));
stat.un.b.lsRjtRsnCode = LSRJT_CMD_UNSUPPORTED;
stat.un.b.lsRjtRsnCodeExp = LSEXP_REQ_UNSUPPORTED;