Commit 7bb3b137 authored by Jamie Wellnitz's avatar Jamie Wellnitz Committed by James Bottomley

[SCSI] lpfc 8.1.2: Handling of ELS commands RRQ, RPS, RPL and LIRR correctly

Handling of ELS commands RRQ, RPS, RPL and LIRR correctly
Signed-off-by: default avatarJamie Wellnitz <Jamie.Wellnitz@emulex.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent 0228aadd
......@@ -121,7 +121,9 @@ struct lpfc_stats {
uint32_t elsRcvLOGO;
uint32_t elsRcvPRLO;
uint32_t elsRcvPRLI;
uint32_t elsRcvRRQ;
uint32_t elsRcvLIRR;
uint32_t elsRcvRPS;
uint32_t elsRcvRPL;
uint32_t elsXmitFLOGI;
uint32_t elsXmitPLOGI;
uint32_t elsXmitPRLI;
......
......@@ -26,6 +26,7 @@ void lpfc_clear_la(struct lpfc_hba *, LPFC_MBOXQ_t *);
void lpfc_config_link(struct lpfc_hba *, LPFC_MBOXQ_t *);
int lpfc_read_sparam(struct lpfc_hba *, LPFC_MBOXQ_t *);
void lpfc_read_config(struct lpfc_hba *, LPFC_MBOXQ_t *);
void lpfc_read_lnk_stat(struct lpfc_hba *, LPFC_MBOXQ_t *);
void lpfc_set_slim(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t, uint32_t);
int lpfc_reg_login(struct lpfc_hba *, uint32_t, uint8_t *, LPFC_MBOXQ_t *,
uint32_t);
......
......@@ -2654,41 +2654,243 @@ lpfc_els_rcv_rnid(struct lpfc_hba * phba,
}
static int
lpfc_els_rcv_rrq(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
lpfc_els_rcv_lirr(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
struct lpfc_nodelist * ndlp)
{
struct ls_rjt stat;
/* For now, unconditionally reject this command */
stat.un.b.lsRjtRsvd0 = 0;
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
stat.un.b.vendorUnique = 0;
lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
return 0;
}
void
lpfc_els_rsp_rps_acc(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
struct lpfc_sli *psli;
struct lpfc_sli_ring *pring;
MAILBOX_t *mb;
IOCB_t *icmd;
RPS_RSP *rps_rsp;
uint8_t *pcmd;
struct lpfc_iocbq *elsiocb;
struct lpfc_nodelist *ndlp;
uint16_t xri, status;
uint32_t cmdsize;
psli = &phba->sli;
pring = &psli->ring[LPFC_ELS_RING];
mb = &pmb->mb;
ndlp = (struct lpfc_nodelist *) pmb->context2;
xri = (uint16_t) ((unsigned long)(pmb->context1));
pmb->context1 = 0;
pmb->context2 = 0;
if (mb->mbxStatus) {
mempool_free( pmb, phba->mbox_mem_pool);
return;
}
cmdsize = sizeof(RPS_RSP) + sizeof(uint32_t);
mempool_free( pmb, phba->mbox_mem_pool);
if ((elsiocb = lpfc_prep_els_iocb(phba, 0, cmdsize, 3,
ndlp, ELS_CMD_ACC)) == 0) {
return;
}
icmd = &elsiocb->iocb;
icmd->ulpContext = xri;
pcmd = (uint8_t *) (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
pcmd += sizeof (uint32_t); /* Skip past command */
rps_rsp = (RPS_RSP *)pcmd;
if (phba->fc_topology != TOPOLOGY_LOOP)
status = 0x10;
else
status = 0x8;
if (phba->fc_flag & FC_FABRIC)
status |= 0x4;
rps_rsp->rsvd1 = 0;
rps_rsp->portStatus = be16_to_cpu(status);
rps_rsp->linkFailureCnt = be32_to_cpu(mb->un.varRdLnk.linkFailureCnt);
rps_rsp->lossSyncCnt = be32_to_cpu(mb->un.varRdLnk.lossSyncCnt);
rps_rsp->lossSignalCnt = be32_to_cpu(mb->un.varRdLnk.lossSignalCnt);
rps_rsp->primSeqErrCnt = be32_to_cpu(mb->un.varRdLnk.primSeqErrCnt);
rps_rsp->invalidXmitWord = be32_to_cpu(mb->un.varRdLnk.invalidXmitWord);
rps_rsp->crcCnt = be32_to_cpu(mb->un.varRdLnk.crcCnt);
/* Xmit ELS RPS ACC response tag <ulpIoTag> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d:0128 Xmit ELS RPS ACC response tag x%x "
"Data: x%x x%x x%x x%x x%x\n",
phba->brd_no,
elsiocb->iocb.ulpIoTag,
elsiocb->iocb.ulpContext, ndlp->nlp_DID,
ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
phba->fc_stat.elsXmitACC++;
if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
}
return;
}
static int
lpfc_els_rcv_rps(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
struct lpfc_nodelist * ndlp)
{
struct lpfc_dmabuf *pcmd;
uint32_t *lp;
uint8_t flag;
LPFC_MBOXQ_t *mbox;
struct lpfc_dmabuf *pcmd;
RPS *rps;
struct ls_rjt stat;
if((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
(ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
stat.un.b.lsRjtRsvd0 = 0;
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
stat.un.b.vendorUnique = 0;
lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
}
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
lp = (uint32_t *) pcmd->virt;
flag = (be32_to_cpu(*lp++) & 0xf);
rps = (RPS *) lp;
if ((flag == 0) ||
((flag == 1) && (be32_to_cpu(rps->un.portNum) == 0)) ||
((flag == 2) && (memcmp(&rps->un.portName, &phba->fc_portname,
sizeof (struct lpfc_name)) == 0))) {
if ((mbox = mempool_alloc(phba->mbox_mem_pool, GFP_ATOMIC))) {
lpfc_read_lnk_stat(phba, mbox);
mbox->context1 =
(void *)((unsigned long)cmdiocb->iocb.ulpContext);
mbox->context2 = ndlp;
mbox->mbox_cmpl = lpfc_els_rsp_rps_acc;
if (lpfc_sli_issue_mbox (phba, mbox,
(MBX_NOWAIT | MBX_STOP_IOCB)) != MBX_NOT_FINISHED) {
/* Mbox completion will send ELS Response */
return 0;
}
mempool_free(mbox, phba->mbox_mem_pool);
}
}
stat.un.b.lsRjtRsvd0 = 0;
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
stat.un.b.vendorUnique = 0;
lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
return 0;
}
int
lpfc_els_rsp_rpl_acc(struct lpfc_hba * phba, uint16_t cmdsize,
struct lpfc_iocbq * oldiocb, struct lpfc_nodelist * ndlp)
{
IOCB_t *icmd;
IOCB_t *oldcmd;
RPL_RSP rpl_rsp;
struct lpfc_iocbq *elsiocb;
struct lpfc_sli_ring *pring;
struct lpfc_sli *psli;
RRQ *rrq;
uint32_t cmd, did;
uint8_t *pcmd;
psli = &phba->sli;
pring = &psli->ring[LPFC_FCP_RING];
icmd = &cmdiocb->iocb;
did = icmd->un.elsreq64.remoteID;
pring = &psli->ring[LPFC_ELS_RING]; /* ELS ring */
if ((elsiocb =
lpfc_prep_els_iocb(phba, 0, cmdsize, oldiocb->retry,
ndlp, ELS_CMD_ACC)) == 0) {
return 1;
}
icmd = &elsiocb->iocb;
oldcmd = &oldiocb->iocb;
icmd->ulpContext = oldcmd->ulpContext; /* Xri */
pcmd = (((struct lpfc_dmabuf *) elsiocb->context2)->virt);
*((uint32_t *) (pcmd)) = ELS_CMD_ACC;
pcmd += sizeof (uint16_t);
*((uint16_t *)(pcmd)) = be16_to_cpu(cmdsize);
pcmd += sizeof(uint16_t);
/* Setup the RPL ACC payload */
rpl_rsp.listLen = be32_to_cpu(1);
rpl_rsp.index = 0;
rpl_rsp.port_num_blk.portNum = 0;
rpl_rsp.port_num_blk.portID = be32_to_cpu(phba->fc_myDID);
memcpy(&rpl_rsp.port_num_blk.portName, &phba->fc_portname,
sizeof(struct lpfc_name));
memcpy(pcmd, &rpl_rsp, cmdsize - sizeof(uint32_t));
/* Xmit ELS RPL ACC response tag <ulpIoTag> */
lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
"%d:0128 Xmit ELS RPL ACC response tag x%x "
"Data: x%x x%x x%x x%x x%x\n",
phba->brd_no,
elsiocb->iocb.ulpIoTag,
elsiocb->iocb.ulpContext, ndlp->nlp_DID,
ndlp->nlp_flag, ndlp->nlp_state, ndlp->nlp_rpi);
elsiocb->iocb_cmpl = lpfc_cmpl_els_acc;
phba->fc_stat.elsXmitACC++;
if (lpfc_sli_issue_iocb(phba, pring, elsiocb, 0) == IOCB_ERROR) {
lpfc_els_free_iocb(phba, elsiocb);
return 1;
}
return 0;
}
static int
lpfc_els_rcv_rpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
struct lpfc_nodelist * ndlp)
{
struct lpfc_dmabuf *pcmd;
uint32_t *lp;
uint32_t maxsize;
uint16_t cmdsize;
RPL *rpl;
struct ls_rjt stat;
if((ndlp->nlp_state != NLP_STE_UNMAPPED_NODE) &&
(ndlp->nlp_state != NLP_STE_MAPPED_NODE)) {
stat.un.b.lsRjtRsvd0 = 0;
stat.un.b.lsRjtRsnCode = LSRJT_UNABLE_TPC;
stat.un.b.lsRjtRsnCodeExp = LSEXP_CANT_GIVE_DATA;
stat.un.b.vendorUnique = 0;
lpfc_els_rsp_reject(phba, stat.un.lsRjtError, cmdiocb, ndlp);
}
pcmd = (struct lpfc_dmabuf *) cmdiocb->context2;
lp = (uint32_t *) pcmd->virt;
rpl = (RPL *) (lp + 1);
cmd = *lp++;
rrq = (RRQ *) lp;
maxsize = be32_to_cpu(rpl->maxsize);
/* RRQ received */
/* Get oxid / rxid from payload and abort it */
spin_lock_irq(phba->host->host_lock);
if ((rrq->SID == be32_to_cpu(phba->fc_myDID))) {
lpfc_sli_abort_iocb(phba, pring, 0, 0, rrq->Oxid,
LPFC_CTX_CTX);
} else {
lpfc_sli_abort_iocb(phba, pring, 0, 0, rrq->Rxid,
LPFC_CTX_CTX);
/* We support only one port */
if ((rpl->index == 0) &&
((maxsize == 0) ||
((maxsize * sizeof(uint32_t)) >= sizeof(RPL_RSP)))) {
cmdsize = sizeof(uint32_t) + sizeof(RPL_RSP);
}
spin_unlock_irq(phba->host->host_lock);
/* ACCEPT the rrq request */
lpfc_els_rsp_acc(phba, ELS_CMD_ACC, cmdiocb, ndlp, NULL, 0);
else {
cmdsize = sizeof(uint32_t) + maxsize * sizeof(uint32_t);
}
lpfc_els_rsp_rpl_acc(phba, cmdsize, cmdiocb, ndlp);
return 0;
}
......@@ -3201,10 +3403,6 @@ lpfc_els_unsol_event(struct lpfc_hba * phba,
phba->fc_stat.elsRcvFAN++;
lpfc_els_rcv_fan(phba, elsiocb, ndlp);
break;
case ELS_CMD_RRQ:
phba->fc_stat.elsRcvRRQ++;
lpfc_els_rcv_rrq(phba, elsiocb, ndlp);
break;
case ELS_CMD_PRLI:
phba->fc_stat.elsRcvPRLI++;
if (phba->hba_state < LPFC_DISC_AUTH) {
......@@ -3213,9 +3411,33 @@ lpfc_els_unsol_event(struct lpfc_hba * phba,
}
lpfc_disc_state_machine(phba, ndlp, elsiocb, NLP_EVT_RCV_PRLI);
break;
case ELS_CMD_LIRR:
phba->fc_stat.elsRcvLIRR++;
lpfc_els_rcv_lirr(phba, elsiocb, ndlp);
if (newnode) {
mempool_free( ndlp, phba->nlp_mem_pool);
}
break;
case ELS_CMD_RPS:
phba->fc_stat.elsRcvRPS++;
lpfc_els_rcv_rps(phba, elsiocb, ndlp);
if (newnode) {
mempool_free( ndlp, phba->nlp_mem_pool);
}
break;
case ELS_CMD_RPL:
phba->fc_stat.elsRcvRPL++;
lpfc_els_rcv_rpl(phba, elsiocb, ndlp);
if (newnode) {
mempool_free( ndlp, phba->nlp_mem_pool);
}
break;
case ELS_CMD_RNID:
phba->fc_stat.elsRcvRNID++;
lpfc_els_rcv_rnid(phba, elsiocb, ndlp);
if (newnode) {
mempool_free( ndlp, phba->nlp_mem_pool);
}
break;
default:
/* Unsupported ELS command, reject */
......
......@@ -454,10 +454,13 @@ struct serv_parm { /* Structure is in Big Endian format */
#define ELS_CMD_ADISC 0x52000000
#define ELS_CMD_FARP 0x54000000
#define ELS_CMD_FARPR 0x55000000
#define ELS_CMD_RPS 0x56000000
#define ELS_CMD_RPL 0x57000000
#define ELS_CMD_FAN 0x60000000
#define ELS_CMD_RSCN 0x61040000
#define ELS_CMD_SCR 0x62000000
#define ELS_CMD_RNID 0x78000000
#define ELS_CMD_LIRR 0x7A000000
#else /* __LITTLE_ENDIAN_BITFIELD */
#define ELS_CMD_MASK 0xffff
#define ELS_RSP_MASK 0xff
......@@ -486,10 +489,13 @@ struct serv_parm { /* Structure is in Big Endian format */
#define ELS_CMD_ADISC 0x52
#define ELS_CMD_FARP 0x54
#define ELS_CMD_FARPR 0x55
#define ELS_CMD_RPS 0x56
#define ELS_CMD_RPL 0x57
#define ELS_CMD_FAN 0x60
#define ELS_CMD_RSCN 0x0461
#define ELS_CMD_SCR 0x62
#define ELS_CMD_RNID 0x78
#define ELS_CMD_LIRR 0x7A
#endif
/*
......@@ -758,12 +764,40 @@ typedef struct _RNID { /* Structure is in Big Endian format */
} un;
} RNID;
typedef struct _RRQ { /* Structure is in Big Endian format */
uint32_t SID;
uint16_t Oxid;
uint16_t Rxid;
uint8_t resv[32]; /* optional association hdr */
} RRQ;
typedef struct _RPS { /* Structure is in Big Endian format */
union {
uint32_t portNum;
struct lpfc_name portName;
} un;
} RPS;
typedef struct _RPS_RSP { /* Structure is in Big Endian format */
uint16_t rsvd1;
uint16_t portStatus;
uint32_t linkFailureCnt;
uint32_t lossSyncCnt;
uint32_t lossSignalCnt;
uint32_t primSeqErrCnt;
uint32_t invalidXmitWord;
uint32_t crcCnt;
} RPS_RSP;
typedef struct _RPL { /* Structure is in Big Endian format */
uint32_t maxsize;
uint32_t index;
} RPL;
typedef struct _PORT_NUM_BLK {
uint32_t portNum;
uint32_t portID;
struct lpfc_name portName;
} PORT_NUM_BLK;
typedef struct _RPL_RSP { /* Structure is in Big Endian format */
uint32_t listLen;
uint32_t index;
PORT_NUM_BLK port_num_blk;
} RPL_RSP;
/* This is used for RSCN command */
typedef struct _D_ID { /* Structure is in Big Endian format */
......@@ -804,7 +838,6 @@ typedef struct _ELS_PKT { /* Structure is in Big Endian format */
FARP farp; /* Payload for FARP/ACC */
FAN fan; /* Payload for FAN */
SCR scr; /* Payload for SCR/ACC */
RRQ rrq; /* Payload for RRQ */
RNID rnid; /* Payload for RNID */
uint8_t pad[128 - 4]; /* Pad out to payload of 128 bytes */
} un;
......
......@@ -336,6 +336,23 @@ lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
return;
}
/*************************************************/
/* lpfc_read_lnk_stat Issue a READ LINK STATUS */
/* mailbox command */
/*************************************************/
void
lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_READ_LNK_STAT;
mb->mbxOwner = OWN_HOST;
return;
}
/********************************************/
/* lpfc_reg_login Issue a REG_LOGIN */
/* mailbox command */
......
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