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path: root/drivers/scsi/lpfc/lpfc_mbox.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_mbox.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_mbox.c632
1 files changed, 590 insertions, 42 deletions
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index 7f5899b70bd..6aeb1c668e2 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -60,7 +60,7 @@ lpfc_dump_mem(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, uint16_t offset)
MAILBOX_t *mb;
void *ctx;
- mb = &pmb->mb;
+ mb = &pmb->u.mb;
ctx = pmb->context2;
/* Setup to dump VPD region */
@@ -92,7 +92,7 @@ lpfc_dump_wakeup_param(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
MAILBOX_t *mb;
void *ctx;
- mb = &pmb->mb;
+ mb = &pmb->u.mb;
/* Save context so that we can restore after memset */
ctx = pmb->context2;
@@ -127,7 +127,7 @@ lpfc_read_nv(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
- mb = &pmb->mb;
+ mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_READ_NV;
mb->mbxOwner = OWN_HOST;
@@ -153,7 +153,7 @@ lpfc_config_async(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb,
{
MAILBOX_t *mb;
- mb = &pmb->mb;
+ mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_ASYNCEVT_ENABLE;
mb->un.varCfgAsyncEvent.ring = ring;
@@ -179,7 +179,7 @@ lpfc_heart_beat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
- mb = &pmb->mb;
+ mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_HEARTBEAT;
mb->mbxOwner = OWN_HOST;
@@ -213,7 +213,7 @@ lpfc_read_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb, struct lpfc_dmabuf *mp)
struct lpfc_sli *psli;
psli = &phba->sli;
- mb = &pmb->mb;
+ mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
INIT_LIST_HEAD(&mp->list);
@@ -250,7 +250,7 @@ lpfc_clear_la(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
- mb = &pmb->mb;
+ mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varClearLA.eventTag = phba->fc_eventTag;
@@ -277,7 +277,7 @@ void
lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
struct lpfc_vport *vport = phba->pport;
- MAILBOX_t *mb = &pmb->mb;
+ MAILBOX_t *mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
/* NEW_FEATURE
@@ -323,7 +323,7 @@ lpfc_config_link(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
int
lpfc_config_msi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
- MAILBOX_t *mb = &pmb->mb;
+ MAILBOX_t *mb = &pmb->u.mb;
uint32_t attentionConditions[2];
/* Sanity check */
@@ -407,7 +407,7 @@ lpfc_init_link(struct lpfc_hba * phba,
struct lpfc_sli *psli;
MAILBOX_t *mb;
- mb = &pmb->mb;
+ mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
psli = &phba->sli;
@@ -494,7 +494,7 @@ lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi)
struct lpfc_sli *psli;
psli = &phba->sli;
- mb = &pmb->mb;
+ mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxOwner = OWN_HOST;
@@ -517,7 +517,7 @@ lpfc_read_sparam(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb, int vpi)
mb->un.varRdSparm.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
mb->un.varRdSparm.un.sp64.addrHigh = putPaddrHigh(mp->phys);
mb->un.varRdSparm.un.sp64.addrLow = putPaddrLow(mp->phys);
- mb->un.varRdSparm.vpi = vpi;
+ mb->un.varRdSparm.vpi = vpi + phba->vpi_base;
/* save address for completion */
pmb->context1 = mp;
@@ -546,10 +546,12 @@ lpfc_unreg_did(struct lpfc_hba * phba, uint16_t vpi, uint32_t did,
{
MAILBOX_t *mb;
- mb = &pmb->mb;
+ mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varUnregDID.did = did;
+ if (vpi != 0xffff)
+ vpi += phba->vpi_base;
mb->un.varUnregDID.vpi = vpi;
mb->mbxCommand = MBX_UNREG_D_ID;
@@ -575,7 +577,7 @@ lpfc_read_config(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
- mb = &pmb->mb;
+ mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_READ_CONFIG;
@@ -600,7 +602,7 @@ lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb;
- mb = &pmb->mb;
+ mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxCommand = MBX_READ_LNK_STAT;
@@ -609,7 +611,7 @@ lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
}
/**
- * lpfc_reg_login - Prepare a mailbox command for registering remote login
+ * lpfc_reg_rpi - Prepare a mailbox command for registering remote login
* @phba: pointer to lpfc hba data structure.
* @vpi: virtual N_Port identifier.
* @did: remote port identifier.
@@ -633,17 +635,23 @@ lpfc_read_lnk_stat(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
* 1 - DMA memory allocation failed
**/
int
-lpfc_reg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t did,
+lpfc_reg_rpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t did,
uint8_t *param, LPFC_MBOXQ_t *pmb, uint32_t flag)
{
- MAILBOX_t *mb = &pmb->mb;
+ MAILBOX_t *mb = &pmb->u.mb;
uint8_t *sparam;
struct lpfc_dmabuf *mp;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varRegLogin.rpi = 0;
- mb->un.varRegLogin.vpi = vpi;
+ if (phba->sli_rev == LPFC_SLI_REV4) {
+ mb->un.varRegLogin.rpi = lpfc_sli4_alloc_rpi(phba);
+ if (mb->un.varRegLogin.rpi == LPFC_RPI_ALLOC_ERROR)
+ return 1;
+ }
+
+ mb->un.varRegLogin.vpi = vpi + phba->vpi_base;
mb->un.varRegLogin.did = did;
mb->un.varWords[30] = flag; /* Set flag to issue action on cmpl */
@@ -699,15 +707,16 @@ lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi,
{
MAILBOX_t *mb;
- mb = &pmb->mb;
+ mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varUnregLogin.rpi = (uint16_t) rpi;
mb->un.varUnregLogin.rsvd1 = 0;
- mb->un.varUnregLogin.vpi = vpi;
+ mb->un.varUnregLogin.vpi = vpi + phba->vpi_base;
mb->mbxCommand = MBX_UNREG_LOGIN;
mb->mbxOwner = OWN_HOST;
+
return;
}
@@ -727,15 +736,15 @@ lpfc_unreg_login(struct lpfc_hba *phba, uint16_t vpi, uint32_t rpi,
* This routine prepares the mailbox command for registering a virtual N_Port.
**/
void
-lpfc_reg_vpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t sid,
- LPFC_MBOXQ_t *pmb)
+lpfc_reg_vpi(struct lpfc_vport *vport, LPFC_MBOXQ_t *pmb)
{
- MAILBOX_t *mb = &pmb->mb;
+ MAILBOX_t *mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
- mb->un.varRegVpi.vpi = vpi;
- mb->un.varRegVpi.sid = sid;
+ mb->un.varRegVpi.vpi = vport->vpi + vport->phba->vpi_base;
+ mb->un.varRegVpi.sid = vport->fc_myDID;
+ mb->un.varRegVpi.vfi = vport->vfi + vport->phba->vfi_base;
mb->mbxCommand = MBX_REG_VPI;
mb->mbxOwner = OWN_HOST;
@@ -762,10 +771,10 @@ lpfc_reg_vpi(struct lpfc_hba *phba, uint16_t vpi, uint32_t sid,
void
lpfc_unreg_vpi(struct lpfc_hba *phba, uint16_t vpi, LPFC_MBOXQ_t *pmb)
{
- MAILBOX_t *mb = &pmb->mb;
+ MAILBOX_t *mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
- mb->un.varUnregVpi.vpi = vpi;
+ mb->un.varUnregVpi.vpi = vpi + phba->vpi_base;
mb->mbxCommand = MBX_UNREG_VPI;
mb->mbxOwner = OWN_HOST;
@@ -854,7 +863,7 @@ lpfc_config_pcb_setup(struct lpfc_hba * phba)
void
lpfc_read_rev(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
- MAILBOX_t *mb = &pmb->mb;
+ MAILBOX_t *mb = &pmb->u.mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varRdRev.cv = 1;
mb->un.varRdRev.v3req = 1; /* Request SLI3 info */
@@ -947,7 +956,7 @@ lpfc_config_hbq(struct lpfc_hba *phba, uint32_t id,
uint32_t hbq_entry_index, LPFC_MBOXQ_t *pmb)
{
int i;
- MAILBOX_t *mb = &pmb->mb;
+ MAILBOX_t *mb = &pmb->u.mb;
struct config_hbq_var *hbqmb = &mb->un.varCfgHbq;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
@@ -1022,7 +1031,7 @@ void
lpfc_config_ring(struct lpfc_hba * phba, int ring, LPFC_MBOXQ_t * pmb)
{
int i;
- MAILBOX_t *mb = &pmb->mb;
+ MAILBOX_t *mb = &pmb->u.mb;
struct lpfc_sli *psli;
struct lpfc_sli_ring *pring;
@@ -1077,7 +1086,7 @@ 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;
+ MAILBOX_t *mb = &pmb->u.mb;
dma_addr_t pdma_addr;
uint32_t bar_low, bar_high;
size_t offset;
@@ -1101,21 +1110,22 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
/* If HBA supports SLI=3 ask for it */
- if (phba->sli_rev == 3 && phba->vpd.sli3Feat.cerbm) {
+ if (phba->sli_rev == LPFC_SLI_REV3 && phba->vpd.sli3Feat.cerbm) {
if (phba->cfg_enable_bg)
mb->un.varCfgPort.cbg = 1; /* configure BlockGuard */
+ mb->un.varCfgPort.cdss = 1; /* Configure Security */
mb->un.varCfgPort.cerbm = 1; /* Request HBQs */
mb->un.varCfgPort.ccrp = 1; /* Command Ring Polling */
mb->un.varCfgPort.cinb = 1; /* Interrupt Notification Block */
mb->un.varCfgPort.max_hbq = lpfc_sli_hbq_count();
if (phba->max_vpi && phba->cfg_enable_npiv &&
phba->vpd.sli3Feat.cmv) {
- mb->un.varCfgPort.max_vpi = phba->max_vpi;
+ mb->un.varCfgPort.max_vpi = LPFC_MAX_VPI;
mb->un.varCfgPort.cmv = 1;
} else
mb->un.varCfgPort.max_vpi = phba->max_vpi = 0;
} else
- phba->sli_rev = 2;
+ phba->sli_rev = LPFC_SLI_REV2;
mb->un.varCfgPort.sli_mode = phba->sli_rev;
/* Now setup pcb */
@@ -1247,7 +1257,7 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
void
lpfc_kill_board(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
- MAILBOX_t *mb = &pmb->mb;
+ MAILBOX_t *mb = &pmb->u.mb;
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
mb->mbxCommand = MBX_KILL_BOARD;
@@ -1307,29 +1317,98 @@ lpfc_mbox_get(struct lpfc_hba * phba)
}
/**
+ * __lpfc_mbox_cmpl_put - Put mailbox cmd into mailbox cmd complete list
+ * @phba: pointer to lpfc hba data structure.
+ * @mbq: pointer to the driver internal queue element for mailbox command.
+ *
+ * This routine put the completed mailbox command into the mailbox command
+ * complete list. This is the unlocked version of the routine. The mailbox
+ * complete list is used by the driver worker thread to process mailbox
+ * complete callback functions outside the driver interrupt handler.
+ **/
+void
+__lpfc_mbox_cmpl_put(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbq)
+{
+ list_add_tail(&mbq->list, &phba->sli.mboxq_cmpl);
+}
+
+/**
* lpfc_mbox_cmpl_put - Put mailbox command into mailbox command complete list
* @phba: pointer to lpfc hba data structure.
* @mbq: pointer to the driver internal queue element for mailbox command.
*
* This routine put the completed mailbox command into the mailbox command
- * complete list. This routine is called from driver interrupt handler
- * context.The mailbox complete list is used by the driver worker thread
- * to process mailbox complete callback functions outside the driver interrupt
- * handler.
+ * complete list. This is the locked version of the routine. The mailbox
+ * complete list is used by the driver worker thread to process mailbox
+ * complete callback functions outside the driver interrupt handler.
**/
void
-lpfc_mbox_cmpl_put(struct lpfc_hba * phba, LPFC_MBOXQ_t * mbq)
+lpfc_mbox_cmpl_put(struct lpfc_hba *phba, LPFC_MBOXQ_t *mbq)
{
unsigned long iflag;
/* This function expects to be called from interrupt context */
spin_lock_irqsave(&phba->hbalock, iflag);
- list_add_tail(&mbq->list, &phba->sli.mboxq_cmpl);
+ __lpfc_mbox_cmpl_put(phba, mbq);
spin_unlock_irqrestore(&phba->hbalock, iflag);
return;
}
/**
+ * lpfc_mbox_cmd_check - Check the validality of a mailbox command
+ * @phba: pointer to lpfc hba data structure.
+ * @mboxq: pointer to the driver internal queue element for mailbox command.
+ *
+ * This routine is to check whether a mailbox command is valid to be issued.
+ * This check will be performed by both the mailbox issue API when a client
+ * is to issue a mailbox command to the mailbox transport.
+ *
+ * Return 0 - pass the check, -ENODEV - fail the check
+ **/
+int
+lpfc_mbox_cmd_check(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
+{
+ /* Mailbox command that have a completion handler must also have a
+ * vport specified.
+ */
+ if (mboxq->mbox_cmpl && mboxq->mbox_cmpl != lpfc_sli_def_mbox_cmpl &&
+ mboxq->mbox_cmpl != lpfc_sli_wake_mbox_wait) {
+ if (!mboxq->vport) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_MBOX | LOG_VPORT,
+ "1814 Mbox x%x failed, no vport\n",
+ mboxq->u.mb.mbxCommand);
+ dump_stack();
+ return -ENODEV;
+ }
+ }
+ return 0;
+}
+
+/**
+ * lpfc_mbox_dev_check - Check the device state for issuing a mailbox command
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine is to check whether the HBA device is ready for posting a
+ * mailbox command. It is used by the mailbox transport API at the time the
+ * to post a mailbox command to the device.
+ *
+ * Return 0 - pass the check, -ENODEV - fail the check
+ **/
+int
+lpfc_mbox_dev_check(struct lpfc_hba *phba)
+{
+ /* If the PCI channel is in offline state, do not issue mbox */
+ if (unlikely(pci_channel_offline(phba->pcidev)))
+ return -ENODEV;
+
+ /* If the HBA is in error state, do not issue mbox */
+ if (phba->link_state == LPFC_HBA_ERROR)
+ return -ENODEV;
+
+ return 0;
+}
+
+/**
* lpfc_mbox_tmo_val - Retrieve mailbox command timeout value
* @phba: pointer to lpfc hba data structure.
* @cmd: mailbox command code.
@@ -1352,6 +1431,475 @@ lpfc_mbox_tmo_val(struct lpfc_hba *phba, int cmd)
case MBX_WRITE_WWN: /* 0x98 */
case MBX_LOAD_EXP_ROM: /* 0x9C */
return LPFC_MBOX_TMO_FLASH_CMD;
+ case MBX_SLI4_CONFIG: /* 0x9b */
+ return LPFC_MBOX_SLI4_CONFIG_TMO;
}
return LPFC_MBOX_TMO;
}
+
+/**
+ * lpfc_sli4_mbx_sge_set - Set a sge entry in non-embedded mailbox command
+ * @mbox: pointer to lpfc mbox command.
+ * @sgentry: sge entry index.
+ * @phyaddr: physical address for the sge
+ * @length: Length of the sge.
+ *
+ * This routine sets up an entry in the non-embedded mailbox command at the sge
+ * index location.
+ **/
+void
+lpfc_sli4_mbx_sge_set(struct lpfcMboxq *mbox, uint32_t sgentry,
+ dma_addr_t phyaddr, uint32_t length)
+{
+ struct lpfc_mbx_nembed_cmd *nembed_sge;
+
+ nembed_sge = (struct lpfc_mbx_nembed_cmd *)
+ &mbox->u.mqe.un.nembed_cmd;
+ nembed_sge->sge[sgentry].pa_lo = putPaddrLow(phyaddr);
+ nembed_sge->sge[sgentry].pa_hi = putPaddrHigh(phyaddr);
+ nembed_sge->sge[sgentry].length = length;
+}
+
+/**
+ * lpfc_sli4_mbx_sge_get - Get a sge entry from non-embedded mailbox command
+ * @mbox: pointer to lpfc mbox command.
+ * @sgentry: sge entry index.
+ *
+ * This routine gets an entry from the non-embedded mailbox command at the sge
+ * index location.
+ **/
+void
+lpfc_sli4_mbx_sge_get(struct lpfcMboxq *mbox, uint32_t sgentry,
+ struct lpfc_mbx_sge *sge)
+{
+ struct lpfc_mbx_nembed_cmd *nembed_sge;
+
+ nembed_sge = (struct lpfc_mbx_nembed_cmd *)
+ &mbox->u.mqe.un.nembed_cmd;
+ sge->pa_lo = nembed_sge->sge[sgentry].pa_lo;
+ sge->pa_hi = nembed_sge->sge[sgentry].pa_hi;
+ sge->length = nembed_sge->sge[sgentry].length;
+}
+
+/**
+ * lpfc_sli4_mbox_cmd_free - Free a sli4 mailbox command
+ * @phba: pointer to lpfc hba data structure.
+ * @mbox: pointer to lpfc mbox command.
+ *
+ * This routine frees SLI4 specific mailbox command for sending IOCTL command.
+ **/
+void
+lpfc_sli4_mbox_cmd_free(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
+{
+ struct lpfc_mbx_sli4_config *sli4_cfg;
+ struct lpfc_mbx_sge sge;
+ dma_addr_t phyaddr;
+ uint32_t sgecount, sgentry;
+
+ sli4_cfg = &mbox->u.mqe.un.sli4_config;
+
+ /* For embedded mbox command, just free the mbox command */
+ if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
+ mempool_free(mbox, phba->mbox_mem_pool);
+ return;
+ }
+
+ /* For non-embedded mbox command, we need to free the pages first */
+ sgecount = bf_get(lpfc_mbox_hdr_sge_cnt, &sli4_cfg->header.cfg_mhdr);
+ /* There is nothing we can do if there is no sge address array */
+ if (unlikely(!mbox->sge_array)) {
+ mempool_free(mbox, phba->mbox_mem_pool);
+ return;
+ }
+ /* Each non-embedded DMA memory was allocated in the length of a page */
+ for (sgentry = 0; sgentry < sgecount; sgentry++) {
+ lpfc_sli4_mbx_sge_get(mbox, sgentry, &sge);
+ phyaddr = getPaddr(sge.pa_hi, sge.pa_lo);
+ dma_free_coherent(&phba->pcidev->dev, PAGE_SIZE,
+ mbox->sge_array->addr[sgentry], phyaddr);
+ }
+ /* Free the sge address array memory */
+ kfree(mbox->sge_array);
+ /* Finally, free the mailbox command itself */
+ mempool_free(mbox, phba->mbox_mem_pool);
+}
+
+/**
+ * lpfc_sli4_config - Initialize the SLI4 Config Mailbox command
+ * @phba: pointer to lpfc hba data structure.
+ * @mbox: pointer to lpfc mbox command.
+ * @subsystem: The sli4 config sub mailbox subsystem.
+ * @opcode: The sli4 config sub mailbox command opcode.
+ * @length: Length of the sli4 config mailbox command.
+ *
+ * This routine sets up the header fields of SLI4 specific mailbox command
+ * for sending IOCTL command.
+ *
+ * Return: the actual length of the mbox command allocated (mostly useful
+ * for none embedded mailbox command).
+ **/
+int
+lpfc_sli4_config(struct lpfc_hba *phba, struct lpfcMboxq *mbox,
+ uint8_t subsystem, uint8_t opcode, uint32_t length, bool emb)
+{
+ struct lpfc_mbx_sli4_config *sli4_config;
+ union lpfc_sli4_cfg_shdr *cfg_shdr = NULL;
+ uint32_t alloc_len;
+ uint32_t resid_len;
+ uint32_t pagen, pcount;
+ void *viraddr;
+ dma_addr_t phyaddr;
+
+ /* Set up SLI4 mailbox command header fields */
+ memset(mbox, 0, sizeof(*mbox));
+ bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_SLI4_CONFIG);
+
+ /* Set up SLI4 ioctl command header fields */
+ sli4_config = &mbox->u.mqe.un.sli4_config;
+
+ /* Setup for the embedded mbox command */
+ if (emb) {
+ /* Set up main header fields */
+ bf_set(lpfc_mbox_hdr_emb, &sli4_config->header.cfg_mhdr, 1);
+ sli4_config->header.cfg_mhdr.payload_length =
+ LPFC_MBX_CMD_HDR_LENGTH + length;
+ /* Set up sub-header fields following main header */
+ bf_set(lpfc_mbox_hdr_opcode,
+ &sli4_config->header.cfg_shdr.request, opcode);
+ bf_set(lpfc_mbox_hdr_subsystem,
+ &sli4_config->header.cfg_shdr.request, subsystem);
+ sli4_config->header.cfg_shdr.request.request_length = length;
+ return length;
+ }
+
+ /* Setup for the none-embedded mbox command */
+ pcount = (PAGE_ALIGN(length))/PAGE_SIZE;
+ pcount = (pcount > LPFC_SLI4_MBX_SGE_MAX_PAGES) ?
+ LPFC_SLI4_MBX_SGE_MAX_PAGES : pcount;
+ /* Allocate record for keeping SGE virtual addresses */
+ mbox->sge_array = kmalloc(sizeof(struct lpfc_mbx_nembed_sge_virt),
+ GFP_KERNEL);
+ if (!mbox->sge_array)
+ return 0;
+
+ for (pagen = 0, alloc_len = 0; pagen < pcount; pagen++) {
+ /* The DMA memory is always allocated in the length of a
+ * page even though the last SGE might not fill up to a
+ * page, this is used as a priori size of PAGE_SIZE for
+ * the later DMA memory free.
+ */
+ viraddr = dma_alloc_coherent(&phba->pcidev->dev, PAGE_SIZE,
+ &phyaddr, GFP_KERNEL);
+ /* In case of malloc fails, proceed with whatever we have */
+ if (!viraddr)
+ break;
+ mbox->sge_array->addr[pagen] = viraddr;
+ /* Keep the first page for later sub-header construction */
+ if (pagen == 0)
+ cfg_shdr = (union lpfc_sli4_cfg_shdr *)viraddr;
+ resid_len = length - alloc_len;
+ if (resid_len > PAGE_SIZE) {
+ lpfc_sli4_mbx_sge_set(mbox, pagen, phyaddr,
+ PAGE_SIZE);
+ alloc_len += PAGE_SIZE;
+ } else {
+ lpfc_sli4_mbx_sge_set(mbox, pagen, phyaddr,
+ resid_len);
+ alloc_len = length;
+ }
+ }
+
+ /* Set up main header fields in mailbox command */
+ sli4_config->header.cfg_mhdr.payload_length = alloc_len;
+ bf_set(lpfc_mbox_hdr_sge_cnt, &sli4_config->header.cfg_mhdr, pagen);
+
+ /* Set up sub-header fields into the first page */
+ if (pagen > 0) {
+ bf_set(lpfc_mbox_hdr_opcode, &cfg_shdr->request, opcode);
+ bf_set(lpfc_mbox_hdr_subsystem, &cfg_shdr->request, subsystem);
+ cfg_shdr->request.request_length =
+ alloc_len - sizeof(union lpfc_sli4_cfg_shdr);
+ }
+ /* The sub-header is in DMA memory, which needs endian converstion */
+ lpfc_sli_pcimem_bcopy(cfg_shdr, cfg_shdr,
+ sizeof(union lpfc_sli4_cfg_shdr));
+
+ return alloc_len;
+}
+
+/**
+ * lpfc_sli4_mbox_opcode_get - Get the opcode from a sli4 mailbox command
+ * @phba: pointer to lpfc hba data structure.
+ * @mbox: pointer to lpfc mbox command.
+ *
+ * This routine gets the opcode from a SLI4 specific mailbox command for
+ * sending IOCTL command. If the mailbox command is not MBX_SLI4_CONFIG
+ * (0x9B) or if the IOCTL sub-header is not present, opcode 0x0 shall be
+ * returned.
+ **/
+uint8_t
+lpfc_sli4_mbox_opcode_get(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
+{
+ struct lpfc_mbx_sli4_config *sli4_cfg;
+ union lpfc_sli4_cfg_shdr *cfg_shdr;
+
+ if (mbox->u.mb.mbxCommand != MBX_SLI4_CONFIG)
+ return 0;
+ sli4_cfg = &mbox->u.mqe.un.sli4_config;
+
+ /* For embedded mbox command, get opcode from embedded sub-header*/
+ if (bf_get(lpfc_mbox_hdr_emb, &sli4_cfg->header.cfg_mhdr)) {
+ cfg_shdr = &mbox->u.mqe.un.sli4_config.header.cfg_shdr;
+ return bf_get(lpfc_mbox_hdr_opcode, &cfg_shdr->request);
+ }
+
+ /* For non-embedded mbox command, get opcode from first dma page */
+ if (unlikely(!mbox->sge_array))
+ return 0;
+ cfg_shdr = (union lpfc_sli4_cfg_shdr *)mbox->sge_array->addr[0];
+ return bf_get(lpfc_mbox_hdr_opcode, &cfg_shdr->request);
+}
+
+/**
+ * lpfc_request_features: Configure SLI4 REQUEST_FEATURES mailbox
+ * @mboxq: pointer to lpfc mbox command.
+ *
+ * This routine sets up the mailbox for an SLI4 REQUEST_FEATURES
+ * mailbox command.
+ **/
+void
+lpfc_request_features(struct lpfc_hba *phba, struct lpfcMboxq *mboxq)
+{
+ /* Set up SLI4 mailbox command header fields */
+ memset(mboxq, 0, sizeof(LPFC_MBOXQ_t));
+ bf_set(lpfc_mqe_command, &mboxq->u.mqe, MBX_SLI4_REQ_FTRS);
+
+ /* Set up host requested features. */
+ bf_set(lpfc_mbx_rq_ftr_rq_fcpi, &mboxq->u.mqe.un.req_ftrs, 1);
+
+ /* Virtual fabrics and FIPs are not supported yet. */
+ bf_set(lpfc_mbx_rq_ftr_rq_ifip, &mboxq->u.mqe.un.req_ftrs, 0);
+
+ /* Enable DIF (block guard) only if configured to do so. */
+ if (phba->cfg_enable_bg)
+ bf_set(lpfc_mbx_rq_ftr_rq_dif, &mboxq->u.mqe.un.req_ftrs, 1);
+
+ /* Enable NPIV only if configured to do so. */
+ if (phba->max_vpi && phba->cfg_enable_npiv)
+ bf_set(lpfc_mbx_rq_ftr_rq_npiv, &mboxq->u.mqe.un.req_ftrs, 1);
+
+ return;
+}
+
+/**
+ * lpfc_init_vfi - Initialize the INIT_VFI mailbox command
+ * @mbox: pointer to lpfc mbox command to initialize.
+ * @vport: Vport associated with the VF.
+ *
+ * This routine initializes @mbox to all zeros and then fills in the mailbox
+ * fields from @vport. INIT_VFI configures virtual fabrics identified by VFI
+ * in the context of an FCF. The driver issues this command to setup a VFI
+ * before issuing a FLOGI to login to the VSAN. The driver should also issue a
+ * REG_VFI after a successful VSAN login.
+ **/
+void
+lpfc_init_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport)
+{
+ struct lpfc_mbx_init_vfi *init_vfi;
+
+ memset(mbox, 0, sizeof(*mbox));
+ init_vfi = &mbox->u.mqe.un.init_vfi;
+ bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_INIT_VFI);
+ bf_set(lpfc_init_vfi_vr, init_vfi, 1);
+ bf_set(lpfc_init_vfi_vt, init_vfi, 1);
+ bf_set(lpfc_init_vfi_vfi, init_vfi, vport->vfi + vport->phba->vfi_base);
+ bf_set(lpfc_init_vfi_fcfi, init_vfi, vport->phba->fcf.fcfi);
+}
+
+/**
+ * lpfc_reg_vfi - Initialize the REG_VFI mailbox command
+ * @mbox: pointer to lpfc mbox command to initialize.
+ * @vport: vport associated with the VF.
+ * @phys: BDE DMA bus address used to send the service parameters to the HBA.
+ *
+ * This routine initializes @mbox to all zeros and then fills in the mailbox
+ * fields from @vport, and uses @buf as a DMAable buffer to send the vport's
+ * fc service parameters to the HBA for this VFI. REG_VFI configures virtual
+ * fabrics identified by VFI in the context of an FCF.
+ **/
+void
+lpfc_reg_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport, dma_addr_t phys)
+{
+ struct lpfc_mbx_reg_vfi *reg_vfi;
+
+ memset(mbox, 0, sizeof(*mbox));
+ reg_vfi = &mbox->u.mqe.un.reg_vfi;
+ bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_VFI);
+ bf_set(lpfc_reg_vfi_vp, reg_vfi, 1);
+ bf_set(lpfc_reg_vfi_vfi, reg_vfi, vport->vfi + vport->phba->vfi_base);
+ bf_set(lpfc_reg_vfi_fcfi, reg_vfi, vport->phba->fcf.fcfi);
+ bf_set(lpfc_reg_vfi_vpi, reg_vfi, vport->vpi + vport->phba->vpi_base);
+ reg_vfi->bde.addrHigh = putPaddrHigh(phys);
+ reg_vfi->bde.addrLow = putPaddrLow(phys);
+ reg_vfi->bde.tus.f.bdeSize = sizeof(vport->fc_sparam);
+ reg_vfi->bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
+ bf_set(lpfc_reg_vfi_nport_id, reg_vfi, vport->fc_myDID);
+}
+
+/**
+ * lpfc_init_vpi - Initialize the INIT_VPI mailbox command
+ * @mbox: pointer to lpfc mbox command to initialize.
+ * @vpi: VPI to be initialized.
+ *
+ * The INIT_VPI mailbox command supports virtual N_Ports. The driver uses the
+ * command to activate a virtual N_Port. The HBA assigns a MAC address to use
+ * with the virtual N Port. The SLI Host issues this command before issuing a
+ * FDISC to connect to the Fabric. The SLI Host should issue a REG_VPI after a
+ * successful virtual NPort login.
+ **/
+void
+lpfc_init_vpi(struct lpfcMboxq *mbox, uint16_t vpi)
+{
+ memset(mbox, 0, sizeof(*mbox));
+ bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_INIT_VPI);
+ bf_set(lpfc_init_vpi_vpi, &mbox->u.mqe.un.init_vpi, vpi);
+}
+
+/**
+ * lpfc_unreg_vfi - Initialize the UNREG_VFI mailbox command
+ * @mbox: pointer to lpfc mbox command to initialize.
+ * @vfi: VFI to be unregistered.
+ *
+ * The UNREG_VFI mailbox command causes the SLI Host to put a virtual fabric
+ * (logical NPort) into the inactive state. The SLI Host must have logged out
+ * and unregistered all remote N_Ports to abort any activity on the virtual
+ * fabric. The SLI Port posts the mailbox response after marking the virtual
+ * fabric inactive.
+ **/
+void
+lpfc_unreg_vfi(struct lpfcMboxq *mbox, uint16_t vfi)
+{
+ memset(mbox, 0, sizeof(*mbox));
+ bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_UNREG_VFI);
+ bf_set(lpfc_unreg_vfi_vfi, &mbox->u.mqe.un.unreg_vfi, vfi);
+}
+
+/**
+ * lpfc_dump_fcoe_param - Dump config region 23 to get FCoe parameters.
+ * @phba: pointer to the hba structure containing.
+ * @mbox: pointer to lpfc mbox command to initialize.
+ *
+ * This function create a SLI4 dump mailbox command to dump FCoE
+ * parameters stored in region 23.
+ **/
+int
+lpfc_dump_fcoe_param(struct lpfc_hba *phba,
+ struct lpfcMboxq *mbox)
+{
+ struct lpfc_dmabuf *mp = NULL;
+ MAILBOX_t *mb;
+
+ memset(mbox, 0, sizeof(*mbox));
+ mb = &mbox->u.mb;
+
+ mp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
+ if (mp)
+ mp->virt = lpfc_mbuf_alloc(phba, 0, &mp->phys);
+
+ if (!mp || !mp->virt) {
+ kfree(mp);
+ /* dump_fcoe_param failed to allocate memory */
+ lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
+ "2569 lpfc_dump_fcoe_param: memory"
+ " allocation failed \n");
+ return 1;
+ }
+
+ memset(mp->virt, 0, LPFC_BPL_SIZE);
+ INIT_LIST_HEAD(&mp->list);
+
+ /* save address for completion */
+ mbox->context1 = (uint8_t *) mp;
+
+ mb->mbxCommand = MBX_DUMP_MEMORY;
+ mb->un.varDmp.type = DMP_NV_PARAMS;
+ mb->un.varDmp.region_id = DMP_REGION_FCOEPARAM;
+ mb->un.varDmp.sli4_length = DMP_FCOEPARAM_RGN_SIZE;
+ mb->un.varWords[3] = putPaddrLow(mp->phys);
+ mb->un.varWords[4] = putPaddrHigh(mp->phys);
+ return 0;
+}
+
+/**
+ * lpfc_reg_fcfi - Initialize the REG_FCFI mailbox command
+ * @phba: pointer to the hba structure containing the FCF index and RQ ID.
+ * @mbox: pointer to lpfc mbox command to initialize.
+ *
+ * The REG_FCFI mailbox command supports Fibre Channel Forwarders (FCFs). The
+ * SLI Host uses the command to activate an FCF after it has acquired FCF
+ * information via a READ_FCF mailbox command. This mailbox command also is used
+ * to indicate where received unsolicited frames from this FCF will be sent. By
+ * default this routine will set up the FCF to forward all unsolicited frames
+ * the the RQ ID passed in the @phba. This can be overridden by the caller for
+ * more complicated setups.
+ **/
+void
+lpfc_reg_fcfi(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
+{
+ struct lpfc_mbx_reg_fcfi *reg_fcfi;
+
+ memset(mbox, 0, sizeof(*mbox));
+ reg_fcfi = &mbox->u.mqe.un.reg_fcfi;
+ bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_REG_FCFI);
+ bf_set(lpfc_reg_fcfi_rq_id0, reg_fcfi, phba->sli4_hba.hdr_rq->queue_id);
+ bf_set(lpfc_reg_fcfi_rq_id1, reg_fcfi, REG_FCF_INVALID_QID);
+ bf_set(lpfc_reg_fcfi_rq_id2, reg_fcfi, REG_FCF_INVALID_QID);
+ bf_set(lpfc_reg_fcfi_rq_id3, reg_fcfi, REG_FCF_INVALID_QID);
+ bf_set(lpfc_reg_fcfi_info_index, reg_fcfi, phba->fcf.fcf_indx);
+ /* reg_fcf addr mode is bit wise inverted value of fcf addr_mode */
+ bf_set(lpfc_reg_fcfi_mam, reg_fcfi,
+ (~phba->fcf.addr_mode) & 0x3);
+ if (phba->fcf.fcf_flag & FCF_VALID_VLAN) {
+ bf_set(lpfc_reg_fcfi_vv, reg_fcfi, 1);
+ bf_set(lpfc_reg_fcfi_vlan_tag, reg_fcfi, phba->fcf.vlan_id);
+ }
+}
+
+/**
+ * lpfc_unreg_fcfi - Initialize the UNREG_FCFI mailbox command
+ * @mbox: pointer to lpfc mbox command to initialize.
+ * @fcfi: FCFI to be unregistered.
+ *
+ * The UNREG_FCFI mailbox command supports Fibre Channel Forwarders (FCFs).
+ * The SLI Host uses the command to inactivate an FCFI.
+ **/
+void
+lpfc_unreg_fcfi(struct lpfcMboxq *mbox, uint16_t fcfi)
+{
+ memset(mbox, 0, sizeof(*mbox));
+ bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_UNREG_FCFI);
+ bf_set(lpfc_unreg_fcfi, &mbox->u.mqe.un.unreg_fcfi, fcfi);
+}
+
+/**
+ * lpfc_resume_rpi - Initialize the RESUME_RPI mailbox command
+ * @mbox: pointer to lpfc mbox command to initialize.
+ * @ndlp: The nodelist structure that describes the RPI to resume.
+ *
+ * The RESUME_RPI mailbox command is used to restart I/O to an RPI after a
+ * link event.
+ **/
+void
+lpfc_resume_rpi(struct lpfcMboxq *mbox, struct lpfc_nodelist *ndlp)
+{
+ struct lpfc_mbx_resume_rpi *resume_rpi;
+
+ memset(mbox, 0, sizeof(*mbox));
+ resume_rpi = &mbox->u.mqe.un.resume_rpi;
+ bf_set(lpfc_mqe_command, &mbox->u.mqe, MBX_RESUME_RPI);
+ bf_set(lpfc_resume_rpi_rpi, resume_rpi, ndlp->nlp_rpi);
+ bf_set(lpfc_resume_rpi_vpi, resume_rpi,
+ ndlp->vport->vpi + ndlp->vport->phba->vpi_base);
+ bf_set(lpfc_resume_rpi_vfi, resume_rpi,
+ ndlp->vport->vfi + ndlp->vport->phba->vfi_base);
+}