/**
* 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.
* @param: pointer to memory holding the server parameters.
* @pmb: pointer to the driver internal queue element for mailbox command.
* @flag: action flag to be passed back for the complete function.
*
* The registration login mailbox command is used to register an N_Port or
* F_Port login. This registration allows the HBA to cache the remote N_Port
* service parameters internally and thereby make the appropriate FC-2
* decisions. The remote port service parameters are handed off by the driver
* to the HBA using a descriptor entry that directly identifies a buffer in
* host memory. In exchange, the HBA returns an RPI identifier.
*
* This routine prepares the mailbox command for registering remote port login.
* The function allocates DMA buffer for passing the service parameters to the
* HBA with the mailbox command.
*
* Return codes
* 0 - Success
* 1 - DMA memory allocation failed
**/
int
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->u.mb;
uint8_t *sparam;
struct lpfc_dmabuf *mp;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varRegLogin.rpi = 0;
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 */
mb->mbxOwner = OWN_HOST;
/* Get a buffer to hold NPorts Service Parameters */
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);
mb->mbxCommand = MBX_REG_LOGIN64;
/* REG_LOGIN: no buffers */
lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
"0302 REG_LOGIN: no buffers, VPI:%d DID:x%x, "
"flag x%x\n", vpi, did, flag);
return (1);
}
INIT_LIST_HEAD(&mp->list);
sparam = mp->virt;
/* Copy param's into a new buffer */
memcpy(sparam, param, sizeof (struct serv_parm));
/* save address for completion */
pmb->context1 = (uint8_t *) mp;
mb->mbxCommand = MBX_REG_LOGIN64;
mb->un.varRegLogin.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
mb->un.varRegLogin.un.sp64.addrHigh = putPaddrHigh(mp->phys);
mb->un.varRegLogin.un.sp64.addrLow = putPaddrLow(mp->phys);
return (0);
}
int
lpfc_reg_login(struct lpfc_hba * phba,
uint32_t did, uint8_t * param, LPFC_MBOXQ_t * pmb, uint32_t flag)
{
uint8_t *sparam;
struct lpfc_dmabuf *mp;
MAILBOX_t *mb;
struct lpfc_sli *psli;
psli = &phba->sli;
mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->un.varRegLogin.rpi = 0;
mb->un.varRegLogin.did = did;
mb->un.varWords[30] = flag; /* Set flag to issue action on cmpl */
mb->mbxOwner = OWN_HOST;
/* Get a buffer to hold NPorts Service Parameters */
if (((mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL)) == NULL) ||
((mp->virt = lpfc_mbuf_alloc(phba, 0, &(mp->phys))) == 0)) {
if (mp)
kfree(mp);
mb->mbxCommand = MBX_REG_LOGIN64;
/* REG_LOGIN: no buffers */
lpfc_printf_log(phba,
KERN_WARNING,
LOG_MBOX,
"%d:0302 REG_LOGIN: no buffers Data x%x x%x\n",
phba->brd_no,
(uint32_t) did, (uint32_t) flag);
return (1);
}
INIT_LIST_HEAD(&mp->list);
sparam = mp->virt;
/* Copy param's into a new buffer */
memcpy(sparam, param, sizeof (struct serv_parm));
/* save address for completion */
pmb->context1 = (uint8_t *) mp;
mb->mbxCommand = MBX_REG_LOGIN64;
mb->un.varRegLogin.un.sp64.tus.f.bdeSize = sizeof (struct serv_parm);
mb->un.varRegLogin.un.sp64.addrHigh = putPaddrHigh(mp->phys);
mb->un.varRegLogin.un.sp64.addrLow = putPaddrLow(mp->phys);
return (0);
}
/**
* lpfc_dump_static_vport - Dump HBA's static vport information.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
* @offset: offset for dumping vport info.
*
* The dump mailbox command provides a method for the device driver to obtain
* various types of information from the HBA device.
*
* This routine prepares the mailbox command for dumping list of static
* vports to be created.
**/
int
lpfc_dump_static_vport(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb,
uint16_t offset)
{
MAILBOX_t *mb;
struct lpfc_dmabuf *mp;
mb = &pmb->u.mb;
/* Setup to dump vport info region */
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
mb->mbxCommand = MBX_DUMP_MEMORY;
mb->un.varDmp.type = DMP_NV_PARAMS;
mb->un.varDmp.entry_index = offset;
mb->un.varDmp.region_id = DMP_REGION_VPORT;
mb->mbxOwner = OWN_HOST;
/* For SLI3 HBAs data is embedded in mailbox */
if (phba->sli_rev != LPFC_SLI_REV4) {
mb->un.varDmp.cv = 1;
mb->un.varDmp.word_cnt = DMP_RSP_SIZE/sizeof(uint32_t);
return 0;
}
/* For SLI4 HBAs driver need to allocate memory */
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);
lpfc_printf_log(phba, KERN_ERR, LOG_MBOX,
"2605 lpfc_dump_static_vport: memory"
" allocation failed\n");
return 1;
}
memset(mp->virt, 0, LPFC_BPL_SIZE);
INIT_LIST_HEAD(&mp->list);
/* save address for completion */
pmb->context2 = (uint8_t *) mp;
mb->un.varWords[3] = putPaddrLow(mp->phys);
mb->un.varWords[4] = putPaddrHigh(mp->phys);
mb->un.varDmp.sli4_length = sizeof(struct static_vport_info);
return 0;
}
int
lpfc_read_sparam(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
struct lpfc_dmabuf *mp;
MAILBOX_t *mb;
struct lpfc_sli *psli;
psli = &phba->sli;
mb = &pmb->mb;
memset(pmb, 0, sizeof (LPFC_MBOXQ_t));
mb->mbxOwner = OWN_HOST;
/* Get a buffer to hold the HBAs Service Parameters */
if (((mp = kmalloc(sizeof (struct lpfc_dmabuf), GFP_KERNEL)) == 0) ||
((mp->virt = lpfc_mbuf_alloc(phba, 0, &(mp->phys))) == 0)) {
if (mp)
kfree(mp);
mb->mbxCommand = MBX_READ_SPARM64;
/* READ_SPARAM: no buffers */
lpfc_printf_log(phba,
KERN_WARNING,
LOG_MBOX,
"%d:0301 READ_SPARAM: no buffers\n",
phba->brd_no);
return (1);
}
INIT_LIST_HEAD(&mp->list);
mb->mbxCommand = MBX_READ_SPARM64;
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);
/* save address for completion */
pmb->context1 = mp;
return (0);
}
/**
* lpfc_config_msi: Prepare a mailbox command for configuring msi-x.
* @phba: pointer to lpfc hba data structure.
* @pmb: pointer to the driver internal queue element for mailbox command.
*
* The configure MSI-X mailbox command is used to configure the HBA's SLI-3
* MSI-X multi-message interrupt vector association to interrupt attention
* conditions.
*
* Return codes
* 0 - Success
* -EINVAL - Failure
**/
int
lpfc_config_msi(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
{
MAILBOX_t *mb = &pmb->mb;
uint32_t attentionConditions[2];
/* Sanity check */
if (phba->cfg_use_msi != 2) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0475 Not configured for supporting MSI-X "
"cfg_use_msi: 0x%x\n", phba->cfg_use_msi);
return -EINVAL;
}
if (phba->sli_rev < 3) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0476 HBA not supporting SLI-3 or later "
"SLI Revision: 0x%x\n", phba->sli_rev);
return -EINVAL;
}
/* Clear mailbox command fields */
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
/*
* SLI-3, Message Signaled Interrupt Fearure.
*/
/* Multi-message attention configuration */
attentionConditions[0] = (HA_R0ATT | HA_R1ATT | HA_R2ATT | HA_ERATT |
HA_LATT | HA_MBATT);
attentionConditions[1] = 0;
mb->un.varCfgMSI.attentionConditions[0] = attentionConditions[0];
mb->un.varCfgMSI.attentionConditions[1] = attentionConditions[1];
/*
* Set up message number to HA bit association
*/
#ifdef __BIG_ENDIAN_BITFIELD
/* RA0 (FCP Ring) */
mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS] = 1;
/* RA1 (Other Protocol Extra Ring) */
mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS] = 1;
#else /* __LITTLE_ENDIAN_BITFIELD */
/* RA0 (FCP Ring) */
mb->un.varCfgMSI.messageNumberByHA[HA_R0_POS^3] = 1;
/* RA1 (Other Protocol Extra Ring) */
mb->un.varCfgMSI.messageNumberByHA[HA_R1_POS^3] = 1;
#endif
/* Multi-message interrupt autoclear configuration*/
mb->un.varCfgMSI.autoClearHA[0] = attentionConditions[0];
mb->un.varCfgMSI.autoClearHA[1] = attentionConditions[1];
/* For now, HBA autoclear does not work reliably, disable it */
mb->un.varCfgMSI.autoClearHA[0] = 0;
mb->un.varCfgMSI.autoClearHA[1] = 0;
/* Set command and owner bit */
mb->mbxCommand = MBX_CONFIG_MSI;
mb->mbxOwner = OWN_HOST;
return 0;
}
int
lpfc_process_ioctl_dfc(LPFCCMDINPUT_t * cip)
{
struct lpfc_hba *phba;
int rc = -1;
uint32_t outshift;
uint32_t total_mem;
void *dataout;
if ((phba = lpfc_get_phba_by_inst(cip->lpfc_brd)) == NULL)
return EINVAL;
/* libdfc debug entry */
lpfc_printf_log(phba,
KERN_INFO,
LOG_LIBDFC,
"%d:1600 libdfc debug entry Data: x%x x%lx x%lx x%x\n",
phba->brd_no, cip->lpfc_cmd,
(ulong) cip->lpfc_arg1,(ulong) cip->lpfc_arg2,
cip->lpfc_outsz);
outshift = 0;
if (cip->lpfc_outsz >= 4096) {
/* Allocate memory for ioctl data. If buffer is bigger than 64k, then we
* allocate 64k and re-use that buffer over and over to xfer the whole
* block. This is because Linux kernel has a problem allocating more than
* 120k of kernel space memory. Saw problem with GET_FCPTARGETMAPPING...
*/
if (cip->lpfc_outsz <= (64 * 1024))
total_mem = cip->lpfc_outsz;
else
total_mem = 64 * 1024;
} else {
/* Allocate memory for ioctl data */
total_mem = 4096;
}
dataout = kmalloc(total_mem, GFP_KERNEL);
if (!dataout)
return (ENOMEM);
switch (cip->lpfc_cmd) {
/* Debug Interface Support - dfc */
case LPFC_LIP:
rc = lpfc_ioctl_lip(phba, cip, dataout);
break;
case LPFC_INST:
rc = lpfc_ioctl_inst(phba, cip, dataout);
break;
case LPFC_READ_BPLIST:
rc = lpfc_ioctl_read_bplist(phba, cip, dataout, total_mem);
break;
case LPFC_LISTN:
rc = lpfc_ioctl_listn(phba, cip, dataout, total_mem);
break;
case LPFC_RESET:
rc = lpfc_ioctl_reset(phba, cip);
break;
case LPFC_READ_HBA:
rc = lpfc_ioctl_read_hba(phba, cip, dataout, total_mem);
break;
case LPFC_STAT:
rc = lpfc_ioctl_stat(phba, cip, dataout);
break;
}
if (rc != -1) {
/* dfc_ioctl exit */
lpfc_printf_log(phba,
KERN_INFO,
LOG_LIBDFC,
"%d:1601 libdfc debug exit Data: x%x x%x x%x\n",
phba->brd_no,
rc,
cip->lpfc_outsz,
(uint32_t) ((ulong) cip->lpfc_dataout));
}
/* Copy data to user space config method */
if (rc == 0) {
if (cip->lpfc_outsz) {
if (copy_to_user
((uint8_t *) cip->lpfc_dataout,
(uint8_t *) dataout, (int)cip->lpfc_outsz)) {
rc = EIO;
}
}
}
kfree(dataout);
return(rc);
}
void
lpfc_config_port(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmb)
{
MAILBOX_t *mb = &pmb->mb;
dma_addr_t pdma_addr;
uint32_t bar_low, bar_high;
size_t offset;
HGP hgp;
void __iomem *to_slim;
memset(pmb, 0, sizeof(LPFC_MBOXQ_t));
mb->mbxCommand = MBX_CONFIG_PORT;
mb->mbxOwner = OWN_HOST;
mb->un.varCfgPort.pcbLen = sizeof(PCB_t);
offset = (uint8_t *)&phba->slim2p->pcb - (uint8_t *)phba->slim2p;
pdma_addr = phba->slim2p_mapping + offset;
mb->un.varCfgPort.pcbLow = putPaddrLow(pdma_addr);
mb->un.varCfgPort.pcbHigh = putPaddrHigh(pdma_addr);
/* 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);
offset = (uint8_t *)&phba->slim2p->mbx - (uint8_t *)phba->slim2p;
pdma_addr = phba->slim2p_mapping + offset;
phba->slim2p->pcb.mbAddrHigh = putPaddrHigh(pdma_addr);
phba->slim2p->pcb.mbAddrLow = putPaddrLow(pdma_addr);
/*
* Setup Host Group ring pointer.
*
* For efficiency reasons, the ring get/put pointers can be
* placed in adapter memory (SLIM) rather than in host memory.
* This allows firmware to avoid PCI reads/writes when updating
* and checking pointers.
*
* The firmware recognizes the use of SLIM memory by comparing
* the address of the get/put pointers structure with that of
* the SLIM BAR (BAR0).
*
* Caution: be sure to use the PCI config space value of BAR0/BAR1
* (the hardware's view of the base address), not the OS's
* value of pci_resource_start() as the OS value may be a cookie
* for ioremap/iomap.
*/
pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_0, &bar_low);
pci_read_config_dword(phba->pcidev, PCI_BASE_ADDRESS_1, &bar_high);
/* mask off BAR0's flag bits 0 - 3 */
phba->slim2p->pcb.hgpAddrLow = (bar_low & PCI_BASE_ADDRESS_MEM_MASK) +
(SLIMOFF*sizeof(uint32_t));
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(HGP));
to_slim = phba->MBslimaddr + (SLIMOFF*sizeof (uint32_t));
lpfc_memcpy_to_slim(to_slim, &hgp, sizeof (HGP));
/* Setup Port Group ring pointer */
offset = (uint8_t *)&phba->slim2p->mbx.us.s2.port -
(uint8_t *)phba->slim2p;
pdma_addr = phba->slim2p_mapping + offset;
phba->slim2p->pcb.pgpAddrHigh = putPaddrHigh(pdma_addr);
phba->slim2p->pcb.pgpAddrLow = putPaddrLow(pdma_addr);
/* Use callback routine to setp rings in the pcb */
lpfc_config_pcb_setup(phba);
/* special handling for LC HBAs */
if (lpfc_is_LC_HBA(phba->pcidev->device)) {
uint32_t hbainit[5];
lpfc_hba_init(phba, hbainit);
memcpy(&mb->un.varCfgPort.hbainit, hbainit, 20);
}
/* 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);
}