[SCSI] lpfc: NPIV: add SLI-3 interface

NPIV support is only available via new adapter interface extensions,
termed SLI-3. This interface changes some of the basic behaviors such
as command and response ring element sizes and data structures, as
well as a change in buffer posting.  Note: the new firmware extensions
are found only on our mid-range and enterprise 4Gig adapters - so NPIV
support is available only on these newer adapters. The latest firmware
can be downloaded from the Emulex support page.

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

1 files changed, 159 insertions, 17 deletions

diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index 86757ec53057..977799c2b2c2 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -232,6 +232,7 @@ lpfc_init_link(struct lpfc_hba * phba,
         mb->mbxCommand = (volatile uint8_t)MBX_INIT_LINK;
         mb->mbxOwner = OWN_HOST;
         mb->un.varInitLnk.fabric_AL_PA = phba->fc_pref_ALPA;
+        mb->un.varInitLnk.link_flags |= FLAGS_UNREG_LOGIN_ALL;
         return;
 }
 
@@ -418,6 +419,10 @@ lpfc_config_pcb_setup(struct lpfc_hba * phba)
         for (i = 0; i < psli->num_rings; i++) {
                 pring = &psli->ring[i];
 
+                pring->sizeCiocb = phba->sli_rev == 3 ? SLI3_IOCB_CMD_SIZE:
+                        SLI2_IOCB_CMD_SIZE;
+                pring->sizeRiocb = phba->sli_rev == 3 ? SLI3_IOCB_RSP_SIZE:
+                        SLI2_IOCB_RSP_SIZE;
                 /* A ring MUST have both cmd and rsp entries defined to be
                    valid */
                 if ((pring->numCiocb == 0) || (pring->numRiocb == 0)) {
@@ -432,8 +437,7 @@ lpfc_config_pcb_setup(struct lpfc_hba * phba)
                         continue;
                 }
                 /* Command ring setup for ring */
-                pring->cmdringaddr =
-                    (void *)&phba->slim2p->IOCBs[iocbCnt];
+                pring->cmdringaddr = (void *)&phba->slim2p->IOCBs[iocbCnt];
                 pcbp->rdsc[i].cmdEntries = pring->numCiocb;
 
                 offset = (uint8_t *)&phba->slim2p->IOCBs[iocbCnt] -
@@ -444,8 +448,7 @@ lpfc_config_pcb_setup(struct lpfc_hba * phba)
                 iocbCnt += pring->numCiocb;
 
                 /* Response ring setup for ring */
-                pring->rspringaddr =
-                    (void *)&phba->slim2p->IOCBs[iocbCnt];
+                pring->rspringaddr = (void *)&phba->slim2p->IOCBs[iocbCnt];
 
                 pcbp->rdsc[i].rspEntries = pring->numRiocb;
                 offset = (uint8_t *)&phba->slim2p->IOCBs[iocbCnt] -
@@ -463,11 +466,103 @@ lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
         MAILBOX_t *mb = &pmb->mb;
         memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
         mb->un.varRdRev.cv = 1;
+        mb->un.varRdRev.v3req = 1; /* Request SLI3 info */
         mb->mbxCommand = MBX_READ_REV;
         mb->mbxOwner = OWN_HOST;
         return;
 }
 
+static void
+lpfc_build_hbq_profile2(struct config_hbq_var *hbqmb,
+                        struct lpfc_hbq_init  *hbq_desc)
+{
+        hbqmb->profiles.profile2.seqlenbcnt = hbq_desc->seqlenbcnt;
+        hbqmb->profiles.profile2.maxlen     = hbq_desc->maxlen;
+        hbqmb->profiles.profile2.seqlenoff  = hbq_desc->seqlenoff;
+}
+
+static void
+lpfc_build_hbq_profile3(struct config_hbq_var *hbqmb,
+                        struct lpfc_hbq_init  *hbq_desc)
+{
+        hbqmb->profiles.profile3.seqlenbcnt = hbq_desc->seqlenbcnt;
+        hbqmb->profiles.profile3.maxlen     = hbq_desc->maxlen;
+        hbqmb->profiles.profile3.cmdcodeoff = hbq_desc->cmdcodeoff;
+        hbqmb->profiles.profile3.seqlenoff  = hbq_desc->seqlenoff;
+        memcpy(&hbqmb->profiles.profile3.cmdmatch, hbq_desc->cmdmatch,
+               sizeof(hbqmb->profiles.profile3.cmdmatch));
+}
+
+static void
+lpfc_build_hbq_profile5(struct config_hbq_var *hbqmb,
+                        struct lpfc_hbq_init  *hbq_desc)
+{
+        hbqmb->profiles.profile5.seqlenbcnt = hbq_desc->seqlenbcnt;
+        hbqmb->profiles.profile5.maxlen     = hbq_desc->maxlen;
+        hbqmb->profiles.profile5.cmdcodeoff = hbq_desc->cmdcodeoff;
+        hbqmb->profiles.profile5.seqlenoff  = hbq_desc->seqlenoff;
+        memcpy(&hbqmb->profiles.profile5.cmdmatch, hbq_desc->cmdmatch,
+               sizeof(hbqmb->profiles.profile5.cmdmatch));
+}
+
+void
+lpfc_config_hbq(struct lpfc_hba *phba, struct lpfc_hbq_init *hbq_desc,
+                uint32_t hbq_entry_index, LPFC_MBOXQ_t *pmb)
+{
+        int i;
+        MAILBOX_t *mb = &pmb->mb;
+        struct config_hbq_var *hbqmb = &mb->un.varCfgHbq;
+
+        memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
+        hbqmb->entry_count = hbq_desc->entry_count;   /* # entries in HBQ */
+        hbqmb->recvNotify = hbq_desc->rn;             /* Receive
+                                                       * Notification */
+        hbqmb->numMask    = hbq_desc->mask_count;     /* # R_CTL/TYPE masks
+                                                       * # in words 0-19 */
+        hbqmb->profile    = hbq_desc->profile;        /* Selection profile:
+                                                       * 0 = all,
+                                                       * 7 = logentry */
+        hbqmb->ringMask   = hbq_desc->ring_mask;      /* Binds HBQ to a ring
+                                                       * e.g. Ring0=b0001,
+                                                       * ring2=b0100 */
+        hbqmb->headerLen  = hbq_desc->headerLen;      /* 0 if not profile 4
+                                                       * or 5 */
+        hbqmb->logEntry   = hbq_desc->logEntry;       /* Set to 1 if this
+                                                       * HBQ will be used
+                                                       * for LogEntry
+                                                       * buffers */
+        hbqmb->hbqaddrLow = putPaddrLow(phba->hbqslimp.phys) +
+                hbq_entry_index * sizeof(struct lpfc_hbq_entry);
+        hbqmb->hbqaddrHigh = putPaddrHigh(phba->hbqslimp.phys);
+
+        mb->mbxCommand = MBX_CONFIG_HBQ;
+        mb->mbxOwner = OWN_HOST;
+
+        /* Copy info for profiles 2,3,5. Other
+         * profiles this area is reserved
+         */
+        if (hbq_desc->profile == 2)
+                lpfc_build_hbq_profile2(hbqmb, hbq_desc);
+        else if (hbq_desc->profile == 3)
+                lpfc_build_hbq_profile3(hbqmb, hbq_desc);
+        else if (hbq_desc->profile == 5)
+                lpfc_build_hbq_profile5(hbqmb, hbq_desc);
+
+        /* Return if no rctl / type masks for this HBQ */
+        if (!hbq_desc->mask_count)
+                return;
+
+        /* Otherwise we setup specific rctl / type masks for this HBQ */
+        for (i = 0; i < hbq_desc->mask_count; i++) {
+                hbqmb->hbqMasks[i].tmatch = hbq_desc->hbqMasks[i].tmatch;
+                hbqmb->hbqMasks[i].tmask  = hbq_desc->hbqMasks[i].tmask;
+                hbqmb->hbqMasks[i].rctlmatch = hbq_desc->hbqMasks[i].rctlmatch;
+                hbqmb->hbqMasks[i].rctlmask  = hbq_desc->hbqMasks[i].rctlmask;
+        }
+
+        return;
+}
+
 void
 lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb)
 {
@@ -512,13 +607,14 @@ lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb)
 void
 lpfc_config_port(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
 {
+        MAILBOX_t __iomem *mb_slim = (MAILBOX_t __iomem *) phba->MBslimaddr;
         MAILBOX_t *mb = &pmb->mb;
         dma_addr_t pdma_addr;
         uint32_t bar_low, bar_high;
         size_t offset;
         struct lpfc_hgp hgp;
-        void __iomem *to_slim;
         int i;
+        uint32_t pgp_offset;
 
         memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
         mb->mbxCommand = MBX_CONFIG_PORT;
@@ -531,12 +627,21 @@ lpfc_config_port(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
         mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr);
         mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr);
 
+        /* If HBA supports SLI=3 ask for it */
+
+        mb->un.varCfgPort.sli_mode = phba->sli_rev;
+        if (phba->sli_rev == 3) {
+                mb->un.varCfgPort.cerbm = 1; /* Request HBQs */
+                mb->un.varCfgPort.max_hbq = 1; /* Requesting 2 HBQs */
+        }
+
         /* Now setup pcb */
         phba->slim2p->pcb.type = TYPE_NATIVE_SLI2;
         phba->slim2p->pcb.feature = FEATURE_INITIAL_SLI2;
 
         /* Setup Mailbox pointers */
-        phba->slim2p->pcb.mailBoxSize = sizeof(MAILBOX_t);
+        phba->slim2p->pcb.mailBoxSize = offsetof(MAILBOX_t, us) +
+                sizeof(struct sli2_desc);
         offset = (uint8_t *)&phba->slim2p->mbx - (uint8_t *)phba->slim2p;
         pdma_addr = phba->slim2p_mapping + offset;
         phba->slim2p->pcb.mbAddrHigh = putPaddrHigh(pdma_addr);
@@ -564,29 +669,70 @@ lpfc_config_port(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
         pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_0, &bar_low);
         pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_1, &bar_high);
 
+        /*
+         * Set up HGP - Port Memory
+         *
+         * The port expects the host get/put pointers to reside in memory
+         * following the "non-diagnostic" mode mailbox (32 words, 0x80 bytes)
+         * area of SLIM.  In SLI-2 mode, there's an additional 16 reserved
+         * words (0x40 bytes).  This area is not reserved if HBQs are
+         * configured in SLI-3.
+         *
+         * CR0Put    - SLI2(no HBQs) = 0xc0, With HBQs = 0x80
+         * RR0Get                      0xc4              0x84
+         * CR1Put                      0xc8              0x88
+         * RR1Get                      0xcc              0x8c
+         * CR2Put                      0xd0              0x90
+         * RR2Get                      0xd4              0x94
+         * CR3Put                      0xd8              0x98
+         * RR3Get                      0xdc              0x9c
+         *
+         * Reserved                    0xa0-0xbf
+         *    If HBQs configured:
+         *                         HBQ 0 Put ptr  0xc0
+         *                         HBQ 1 Put ptr  0xc4
+         *                         HBQ 2 Put ptr  0xc8
+         *                         ......
+         *                         HBQ(M-1)Put Pointer 0xc0+(M-1)*4
+         *
+         */
+
+        if (phba->sli_rev == 3) {
+                phba->host_gp = &mb_slim->us.s3.host[0];
+                phba->hbq_put = &mb_slim->us.s3.hbq_put[0];
+        } else {
+                phba->host_gp = &mb_slim->us.s2.host[0];
+                phba->hbq_put = NULL;
+        }
 
         /* mask off BAR0's flag bits 0 - 3 */
         phba->slim2p->pcb.hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) +
-                                        (SLIMOFF*sizeof(uint32_t));
+                (void __iomem *) phba->host_gp -
+                (void __iomem *)phba->MBslimaddr;
         if (bar_low & PCI_BASE_ADDRESS_MEM_TYPE_64)
                 phba->slim2p->pcb.hgpAddrHigh = bar_high;
         else
                 phba->slim2p->pcb.hgpAddrHigh = 0;
         /* write HGP data to SLIM at the required longword offset */
         memset(&hgp, 0, sizeof(struct lpfc_hgp));
-        to_slim = phba->MBslimaddr + (SLIMOFF*sizeof (uint32_t));
 
         for (i=0; i < phba->sli.num_rings; i++) {
-                lpfc_memcpy_to_slim(to_slim, &hgp, sizeof(struct lpfc_hgp));
-                to_slim += sizeof (struct lpfc_hgp);
+                lpfc_memcpy_to_slim(phba->host_gp + i, &hgp,
+                                    sizeof(*phba->host_gp));
         }
 
         /* Setup Port Group ring pointer */
-        offset = (uint8_t *)&phba->slim2p->mbx.us.s2.port -
-                 (uint8_t *)phba->slim2p;
-        pdma_addr = phba->slim2p_mapping + offset;
+        if (phba->sli_rev == 3)
+                pgp_offset = (uint8_t *)&phba->slim2p->mbx.us.s3_pgp.port -
+                        (uint8_t *)phba->slim2p;
+        else
+                pgp_offset = (uint8_t *)&phba->slim2p->mbx.us.s2.port -
+                        (uint8_t *)phba->slim2p;
+
+        pdma_addr = phba->slim2p_mapping + pgp_offset;
         phba->slim2p->pcb.pgpAddrHigh = putPaddrHigh(pdma_addr);
         phba->slim2p->pcb.pgpAddrLow = putPaddrLow(pdma_addr);
+        phba->hbq_get = &phba->slim2p->mbx.us.s3_pgp.hbq_get[0];
 
         /* Use callback routine to setp rings in the pcb */
         lpfc_config_pcb_setup(phba);
@@ -603,10 +749,6 @@ lpfc_config_port(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
         /* Swap PCB if needed */
         lpfc_sli_pcimem_bcopy(&phba->slim2p->pcb, &phba->slim2p->pcb,
                                                                 sizeof (PCB_t));
-
-        lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-                        "%d:0405 Service Level Interface (SLI) 2 selected\n",
-                        phba->brd_no);
 }
 
 void