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[SCSI] lpfc 8.3.45: Incorporated support of a low-latency io path

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Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
James Smart 2014-02-20 09:56:45 -05:00 committed by James Bottomley
parent 2a2719d370
commit 1ba981fd3a
13 changed files with 1622 additions and 75 deletions
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17
drivers/scsi/lpfc/lpfc.h
View File

@ -722,6 +722,20 @@ struct lpfc_hba {
uint32_t cfg_hba_queue_depth;
uint32_t cfg_enable_hba_reset;
uint32_t cfg_enable_hba_heartbeat;
uint32_t cfg_fof;
uint32_t cfg_EnableXLane;
uint8_t cfg_oas_tgt_wwpn[8];
uint8_t cfg_oas_vpt_wwpn[8];
uint32_t cfg_oas_lun_state;
#define OAS_LUN_ENABLE 1
#define OAS_LUN_DISABLE 0
uint32_t cfg_oas_lun_status;
#define OAS_LUN_STATUS_EXISTS 0x01
uint32_t cfg_oas_flags;
#define OAS_FIND_ANY_VPORT 0x01
#define OAS_FIND_ANY_TARGET 0x02
#define OAS_LUN_VALID 0x04
uint32_t cfg_XLanePriority;
uint32_t cfg_enable_bg;
uint32_t cfg_hostmem_hgp;
uint32_t cfg_log_verbose;
@ -973,6 +987,9 @@ struct lpfc_hba {
atomic_t sdev_cnt;
uint8_t fips_spec_rev;
uint8_t fips_level;
spinlock_t devicelock; /* lock for luns list */
mempool_t *device_data_mem_pool;
struct list_head luns;
};
static inline struct Scsi_Host *

600
drivers/scsi/lpfc/lpfc_attr.c
View File

@ -528,6 +528,27 @@ lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr,
return snprintf(buf, PAGE_SIZE, "unknown\n");
}
/**
* lpfc_oas_supported_show - Return whether or not Optimized Access Storage
* (OAS) is supported.
* @dev: class unused variable.
* @attr: device attribute, not used.
* @buf: on return contains the module description text.
*
* Returns: size of formatted string.
**/
static ssize_t
lpfc_oas_supported_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *)shost->hostdata;
struct lpfc_hba *phba = vport->phba;
return snprintf(buf, PAGE_SIZE, "%d\n",
phba->sli4_hba.pc_sli4_params.oas_supported);
}
/**
* lpfc_link_state_store - Transition the link_state on an HBA port
* @dev: class device that is converted into a Scsi_host.
@ -2041,9 +2062,53 @@ static DEVICE_ATTR(lpfc_dss, S_IRUGO, lpfc_dss_show, NULL);
static DEVICE_ATTR(lpfc_sriov_hw_max_virtfn, S_IRUGO,
lpfc_sriov_hw_max_virtfn_show, NULL);
static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL);
static DEVICE_ATTR(lpfc_xlane_supported, S_IRUGO, lpfc_oas_supported_show,
NULL);
static char *lpfc_soft_wwn_key = "C99G71SL8032A";
#define WWN_SZ 8
/**
* lpfc_wwn_set - Convert string to the 8 byte WWN value.
* @buf: WWN string.
* @cnt: Length of string.
* @wwn: Array to receive converted wwn value.
*
* Returns:
* -EINVAL if the buffer does not contain a valid wwn
* 0 success
**/
static size_t
lpfc_wwn_set(const char *buf, size_t cnt, char wwn[])
{
unsigned int i, j;
/* Count may include a LF at end of string */
if (buf[cnt-1] == '\n')
cnt--;
if ((cnt < 16) || (cnt > 18) || ((cnt == 17) && (*buf++ != 'x')) ||
((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
return -EINVAL;
memset(wwn, 0, WWN_SZ);
/* Validate and store the new name */
for (i = 0, j = 0; i < 16; i++) {
if ((*buf >= 'a') && (*buf <= 'f'))
j = ((j << 4) | ((*buf++ - 'a') + 10));
else if ((*buf >= 'A') && (*buf <= 'F'))
j = ((j << 4) | ((*buf++ - 'A') + 10));
else if ((*buf >= '0') && (*buf <= '9'))
j = ((j << 4) | (*buf++ - '0'));
else
return -EINVAL;
if (i % 2) {
wwn[i/2] = j & 0xff;
j = 0;
}
}
return 0;
}
/**
* lpfc_soft_wwn_enable_store - Allows setting of the wwn if the key is valid
* @dev: class device that is converted into a Scsi_host.
@ -2132,9 +2197,9 @@ lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct completion online_compl;
int stat1=0, stat2=0;
unsigned int i, j, cnt=count;
u8 wwpn[8];
int stat1 = 0, stat2 = 0;
unsigned int cnt = count;
u8 wwpn[WWN_SZ];
int rc;
if (!phba->cfg_enable_hba_reset)
@ -2149,29 +2214,19 @@ lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
if (buf[cnt-1] == '\n')
cnt--;
if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
((cnt == 17) && (*buf++ != 'x')) ||
((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
if (!phba->soft_wwn_enable)
return -EINVAL;
/* lock setting wwpn, wwnn down */
phba->soft_wwn_enable = 0;
memset(wwpn, 0, sizeof(wwpn));
/* Validate and store the new name */
for (i=0, j=0; i < 16; i++) {
int value;
value = hex_to_bin(*buf++);
if (value >= 0)
j = (j << 4) | value;
else
return -EINVAL;
if (i % 2) {
wwpn[i/2] = j & 0xff;
j = 0;
}
rc = lpfc_wwn_set(buf, cnt, wwpn);
if (!rc) {
/* not able to set wwpn, unlock it */
phba->soft_wwn_enable = 1;
return rc;
}
phba->cfg_soft_wwpn = wwn_to_u64(wwpn);
fc_host_port_name(shost) = phba->cfg_soft_wwpn;
if (phba->cfg_soft_wwnn)
@ -2198,7 +2253,7 @@ lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
"reinit adapter - %d\n", stat2);
return (stat1 || stat2) ? -EIO : count;
}
static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,\
static DEVICE_ATTR(lpfc_soft_wwpn, S_IRUGO | S_IWUSR,
lpfc_soft_wwpn_show, lpfc_soft_wwpn_store);
/**
@ -2235,39 +2290,25 @@ lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
unsigned int i, j, cnt=count;
u8 wwnn[8];
unsigned int cnt = count;
u8 wwnn[WWN_SZ];
int rc;
/* count may include a LF at end of string */
if (buf[cnt-1] == '\n')
cnt--;
if (!phba->soft_wwn_enable || (cnt < 16) || (cnt > 18) ||
((cnt == 17) && (*buf++ != 'x')) ||
((cnt == 18) && ((*buf++ != '0') || (*buf++ != 'x'))))
if (!phba->soft_wwn_enable)
return -EINVAL;
/*
* Allow wwnn to be set many times, as long as the enable is set.
* However, once the wwpn is set, everything locks.
*/
memset(wwnn, 0, sizeof(wwnn));
/* Validate and store the new name */
for (i=0, j=0; i < 16; i++) {
int value;
value = hex_to_bin(*buf++);
if (value >= 0)
j = (j << 4) | value;
else
return -EINVAL;
if (i % 2) {
wwnn[i/2] = j & 0xff;
j = 0;
}
rc = lpfc_wwn_set(buf, cnt, wwnn);
if (!rc) {
/* Allow wwnn to be set many times, as long as the enable
* is set. However, once the wwpn is set, everything locks.
*/
return rc;
}
phba->cfg_soft_wwnn = wwn_to_u64(wwnn);
dev_printk(KERN_NOTICE, &phba->pcidev->dev,
@ -2276,9 +2317,438 @@ lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
return count;
}
static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,\
static DEVICE_ATTR(lpfc_soft_wwnn, S_IRUGO | S_IWUSR,
lpfc_soft_wwnn_show, lpfc_soft_wwnn_store);
/**
* lpfc_oas_tgt_show - Return wwpn of target whose luns maybe enabled for
* Optimized Access Storage (OAS) operations.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
*
* Returns:
* value of count
**/
static ssize_t
lpfc_oas_tgt_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
return snprintf(buf, PAGE_SIZE, "0x%llx\n",
wwn_to_u64(phba->cfg_oas_tgt_wwpn));
}
/**
* lpfc_oas_tgt_store - Store wwpn of target whose luns maybe enabled for
* Optimized Access Storage (OAS) operations.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
* @count: Size of the data buffer.
*
* Returns:
* -EINVAL count is invalid, invalid wwpn byte invalid
* -EPERM oas is not supported by hba
* value of count on success
**/
static ssize_t
lpfc_oas_tgt_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
unsigned int cnt = count;
uint8_t wwpn[WWN_SZ];
int rc;
if (!phba->cfg_EnableXLane)
return -EPERM;
/* count may include a LF at end of string */
if (buf[cnt-1] == '\n')
cnt--;
rc = lpfc_wwn_set(buf, cnt, wwpn);
if (rc)
return rc;
memcpy(phba->cfg_oas_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
memcpy(phba->sli4_hba.oas_next_tgt_wwpn, wwpn, (8 * sizeof(uint8_t)));
if (wwn_to_u64(wwpn) == 0)
phba->cfg_oas_flags |= OAS_FIND_ANY_TARGET;
else
phba->cfg_oas_flags &= ~OAS_FIND_ANY_TARGET;
phba->cfg_oas_flags &= ~OAS_LUN_VALID;
phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
return count;
}
static DEVICE_ATTR(lpfc_xlane_tgt, S_IRUGO | S_IWUSR,
lpfc_oas_tgt_show, lpfc_oas_tgt_store);
/**
* lpfc_oas_vpt_show - Return wwpn of vport whose targets maybe enabled
* for Optimized Access Storage (OAS) operations.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
*
* Returns:
* value of count on success
**/
static ssize_t
lpfc_oas_vpt_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
return snprintf(buf, PAGE_SIZE, "0x%llx\n",
wwn_to_u64(phba->cfg_oas_vpt_wwpn));
}
/**
* lpfc_oas_vpt_store - Store wwpn of vport whose targets maybe enabled
* for Optimized Access Storage (OAS) operations.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
* @count: Size of the data buffer.
*
* Returns:
* -EINVAL count is invalid, invalid wwpn byte invalid
* -EPERM oas is not supported by hba
* value of count on success
**/
static ssize_t
lpfc_oas_vpt_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
unsigned int cnt = count;
uint8_t wwpn[WWN_SZ];
int rc;
if (!phba->cfg_EnableXLane)
return -EPERM;
/* count may include a LF at end of string */
if (buf[cnt-1] == '\n')
cnt--;
rc = lpfc_wwn_set(buf, cnt, wwpn);
if (rc)
return rc;
memcpy(phba->cfg_oas_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
memcpy(phba->sli4_hba.oas_next_vpt_wwpn, wwpn, (8 * sizeof(uint8_t)));
if (wwn_to_u64(wwpn) == 0)
phba->cfg_oas_flags |= OAS_FIND_ANY_VPORT;
else
phba->cfg_oas_flags &= ~OAS_FIND_ANY_VPORT;
phba->cfg_oas_flags &= ~OAS_LUN_VALID;
phba->sli4_hba.oas_next_lun = FIND_FIRST_OAS_LUN;
return count;
}
static DEVICE_ATTR(lpfc_xlane_vpt, S_IRUGO | S_IWUSR,
lpfc_oas_vpt_show, lpfc_oas_vpt_store);
/**
* lpfc_oas_lun_state_show - Return the current state (enabled or disabled)
* of whether luns will be enabled or disabled
* for Optimized Access Storage (OAS) operations.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
*
* Returns:
* size of formatted string.
**/
static ssize_t
lpfc_oas_lun_state_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_state);
}
/**
* lpfc_oas_lun_state_store - Store the state (enabled or disabled)
* of whether luns will be enabled or disabled
* for Optimized Access Storage (OAS) operations.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
* @count: Size of the data buffer.
*
* Returns:
* -EINVAL count is invalid, invalid wwpn byte invalid
* -EPERM oas is not supported by hba
* value of count on success
**/
static ssize_t
lpfc_oas_lun_state_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
int val = 0;
if (!phba->cfg_EnableXLane)
return -EPERM;
if (!isdigit(buf[0]))
return -EINVAL;
if (sscanf(buf, "%i", &val) != 1)
return -EINVAL;
if ((val != 0) && (val != 1))
return -EINVAL;
phba->cfg_oas_lun_state = val;
return strlen(buf);
}
static DEVICE_ATTR(lpfc_xlane_lun_state, S_IRUGO | S_IWUSR,
lpfc_oas_lun_state_show, lpfc_oas_lun_state_store);
/**
* lpfc_oas_lun_status_show - Return the status of the Optimized Access
* Storage (OAS) lun returned by the
* lpfc_oas_lun_show function.
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
*
* Returns:
* size of formatted string.
**/
static ssize_t
lpfc_oas_lun_status_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
if (!(phba->cfg_oas_flags & OAS_LUN_VALID))
return -EFAULT;
return snprintf(buf, PAGE_SIZE, "%d\n", phba->cfg_oas_lun_status);
}
static DEVICE_ATTR(lpfc_xlane_lun_status, S_IRUGO,
lpfc_oas_lun_status_show, NULL);
/**
* lpfc_oas_lun_state_set - enable or disable a lun for Optimized Access Storage
* (OAS) operations.
* @phba: lpfc_hba pointer.
* @ndlp: pointer to fcp target node.
* @lun: the fc lun for setting oas state.
* @oas_state: the oas state to be set to the lun.
*
* Returns:
* SUCCESS : 0
* -EPERM OAS is not enabled or not supported by this port.
*
*/
static size_t
lpfc_oas_lun_state_set(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
uint8_t tgt_wwpn[], uint64_t lun, uint32_t oas_state)
{
int rc = 0;
if (!phba->cfg_EnableXLane)
return -EPERM;
if (oas_state) {
if (!lpfc_enable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
(struct lpfc_name *)tgt_wwpn, lun))
rc = -ENOMEM;
} else {
lpfc_disable_oas_lun(phba, (struct lpfc_name *)vpt_wwpn,
(struct lpfc_name *)tgt_wwpn, lun);
}
return rc;
}
/**
* lpfc_oas_lun_get_next - get the next lun that has been enabled for Optimized
* Access Storage (OAS) operations.
* @phba: lpfc_hba pointer.
* @vpt_wwpn: wwpn of the vport associated with the returned lun
* @tgt_wwpn: wwpn of the target associated with the returned lun
* @lun_status: status of the lun returned lun
*
* Returns the first or next lun enabled for OAS operations for the vport/target
* specified. If a lun is found, its vport wwpn, target wwpn and status is
* returned. If the lun is not found, NOT_OAS_ENABLED_LUN is returned.
*
* Return:
* lun that is OAS enabled for the vport/target
* NOT_OAS_ENABLED_LUN when no oas enabled lun found.
*/
static uint64_t
lpfc_oas_lun_get_next(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
uint8_t tgt_wwpn[], uint32_t *lun_status)
{
uint64_t found_lun;
if (unlikely(!phba) || !vpt_wwpn || !tgt_wwpn)
return NOT_OAS_ENABLED_LUN;
if (lpfc_find_next_oas_lun(phba, (struct lpfc_name *)
phba->sli4_hba.oas_next_vpt_wwpn,
(struct lpfc_name *)
phba->sli4_hba.oas_next_tgt_wwpn,
&phba->sli4_hba.oas_next_lun,
(struct lpfc_name *)vpt_wwpn,
(struct lpfc_name *)tgt_wwpn,
&found_lun, lun_status))
return found_lun;
else
return NOT_OAS_ENABLED_LUN;
}
/**
* lpfc_oas_lun_state_change - enable/disable a lun for OAS operations
* @phba: lpfc_hba pointer.
* @vpt_wwpn: vport wwpn by reference.
* @tgt_wwpn: target wwpn by reference.
* @lun: the fc lun for setting oas state.
* @oas_state: the oas state to be set to the oas_lun.
*
* This routine enables (OAS_LUN_ENABLE) or disables (OAS_LUN_DISABLE)
* a lun for OAS operations.
*
* Return:
* SUCCESS: 0
* -ENOMEM: failed to enable an lun for OAS operations
* -EPERM: OAS is not enabled
*/
static ssize_t
lpfc_oas_lun_state_change(struct lpfc_hba *phba, uint8_t vpt_wwpn[],
uint8_t tgt_wwpn[], uint64_t lun,
uint32_t oas_state)
{
int rc;
rc = lpfc_oas_lun_state_set(phba, vpt_wwpn, tgt_wwpn, lun,
oas_state);
return rc;
}
/**
* lpfc_oas_lun_show - Return oas enabled luns from a chosen target
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
*
* This routine returns a lun enabled for OAS each time the function
* is called.
*
* Returns:
* SUCCESS: size of formatted string.
* -EFAULT: target or vport wwpn was not set properly.
* -EPERM: oas is not enabled.
**/
static ssize_t
lpfc_oas_lun_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
uint64_t oas_lun;
int len = 0;
if (!phba->cfg_EnableXLane)
return -EPERM;
if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0)
if (!(phba->cfg_oas_flags & OAS_FIND_ANY_VPORT))
return -EFAULT;
if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0)
if (!(phba->cfg_oas_flags & OAS_FIND_ANY_TARGET))
return -EFAULT;
oas_lun = lpfc_oas_lun_get_next(phba, phba->cfg_oas_vpt_wwpn,
phba->cfg_oas_tgt_wwpn,
&phba->cfg_oas_lun_status);
if (oas_lun != NOT_OAS_ENABLED_LUN)
phba->cfg_oas_flags |= OAS_LUN_VALID;
len += snprintf(buf + len, PAGE_SIZE-len, "0x%llx", oas_lun);
return len;
}
/**
* lpfc_oas_lun_store - Sets the OAS state for lun
* @dev: class device that is converted into a Scsi_host.
* @attr: device attribute, not used.
* @buf: buffer for passing information.
*
* This function sets the OAS state for lun. Before this function is called,
* the vport wwpn, target wwpn, and oas state need to be set.
*
* Returns:
* SUCCESS: size of formatted string.
* -EFAULT: target or vport wwpn was not set properly.
* -EPERM: oas is not enabled.
* size of formatted string.
**/
static ssize_t
lpfc_oas_lun_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_hba *phba = ((struct lpfc_vport *)shost->hostdata)->phba;
uint64_t scsi_lun;
ssize_t rc;
if (!phba->cfg_EnableXLane)
return -EPERM;
if (wwn_to_u64(phba->cfg_oas_vpt_wwpn) == 0)
return -EFAULT;
if (wwn_to_u64(phba->cfg_oas_tgt_wwpn) == 0)
return -EFAULT;
if (!isdigit(buf[0]))
return -EINVAL;
if (sscanf(buf, "0x%llx", &scsi_lun) != 1)
return -EINVAL;
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"3372 Try to set vport 0x%llx target 0x%llx lun:%lld "
"with oas set to %d\n",
wwn_to_u64(phba->cfg_oas_vpt_wwpn),
wwn_to_u64(phba->cfg_oas_tgt_wwpn), scsi_lun,
phba->cfg_oas_lun_state);
rc = lpfc_oas_lun_state_change(phba, phba->cfg_oas_vpt_wwpn,
phba->cfg_oas_tgt_wwpn, scsi_lun,
phba->cfg_oas_lun_state);
if (rc)
return rc;
return count;
}
static DEVICE_ATTR(lpfc_xlane_lun, S_IRUGO | S_IWUSR,
lpfc_oas_lun_show, lpfc_oas_lun_store);
static int lpfc_poll = 0;
module_param(lpfc_poll, int, S_IRUGO);
@ -4156,6 +4626,21 @@ LPFC_ATTR_R(enable_hba_reset, 1, 0, 1, "Enable HBA resets from the driver.");
*/
LPFC_ATTR_R(enable_hba_heartbeat, 0, 0, 1, "Enable HBA Heartbeat.");
/*
# lpfc_EnableXLane: Enable Express Lane Feature
# 0x0 Express Lane Feature disabled
# 0x1 Express Lane Feature enabled
# Value range is [0,1]. Default value is 0.
*/
LPFC_ATTR_R(EnableXLane, 0, 0, 1, "Enable Express Lane Feature.");
/*
# lpfc_XLanePriority: Define CS_CTL priority for Express Lane Feature
# 0x0 - 0x7f = CS_CTL field in FC header (high 7 bits)
# Value range is [0x0,0x7f]. Default value is 0
*/
LPFC_ATTR_R(XLanePriority, 0, 0x0, 0x7f, "CS_CTL for Express Lane Feature.");
/*
# lpfc_enable_bg: Enable BlockGuard (Emulex's Implementation of T10-DIF)
# 0 = BlockGuard disabled (default)
@ -4317,6 +4802,13 @@ struct device_attribute *lpfc_hba_attrs[] = {
&dev_attr_lpfc_soft_wwn_enable,
&dev_attr_lpfc_enable_hba_reset,
&dev_attr_lpfc_enable_hba_heartbeat,
&dev_attr_lpfc_EnableXLane,
&dev_attr_lpfc_XLanePriority,
&dev_attr_lpfc_xlane_lun,
&dev_attr_lpfc_xlane_tgt,
&dev_attr_lpfc_xlane_vpt,
&dev_attr_lpfc_xlane_lun_state,
&dev_attr_lpfc_xlane_lun_status,
&dev_attr_lpfc_sg_seg_cnt,
&dev_attr_lpfc_max_scsicmpl_time,
&dev_attr_lpfc_stat_data_ctrl,
@ -4335,6 +4827,7 @@ struct device_attribute *lpfc_hba_attrs[] = {
&dev_attr_lpfc_dss,
&dev_attr_lpfc_sriov_hw_max_virtfn,
&dev_attr_protocol,
&dev_attr_lpfc_xlane_supported,
NULL,
};
@ -5296,11 +5789,20 @@ lpfc_get_cfgparam(struct lpfc_hba *phba)
lpfc_fcp_io_channel_init(phba, lpfc_fcp_io_channel);
lpfc_enable_hba_reset_init(phba, lpfc_enable_hba_reset);
lpfc_enable_hba_heartbeat_init(phba, lpfc_enable_hba_heartbeat);
lpfc_EnableXLane_init(phba, lpfc_EnableXLane);
if (phba->sli_rev != LPFC_SLI_REV4)
phba->cfg_EnableXLane = 0;
lpfc_XLanePriority_init(phba, lpfc_XLanePriority);
memset(phba->cfg_oas_tgt_wwpn, 0, (8 * sizeof(uint8_t)));
memset(phba->cfg_oas_vpt_wwpn, 0, (8 * sizeof(uint8_t)));
phba->cfg_oas_lun_state = 0;
phba->cfg_oas_lun_status = 0;
phba->cfg_oas_flags = 0;
lpfc_enable_bg_init(phba, lpfc_enable_bg);
if (phba->sli_rev == LPFC_SLI_REV4)
phba->cfg_poll = 0;
else
phba->cfg_poll = lpfc_poll;
phba->cfg_poll = lpfc_poll;
phba->cfg_soft_wwnn = 0L;
phba->cfg_soft_wwpn = 0L;
lpfc_sg_seg_cnt_init(phba, lpfc_sg_seg_cnt);

22
drivers/scsi/lpfc/lpfc_crtn.h
View File

@ -187,6 +187,11 @@ void lpfc_offline_prep(struct lpfc_hba *, int);
void lpfc_offline(struct lpfc_hba *);
void lpfc_reset_hba(struct lpfc_hba *);
int lpfc_fof_queue_create(struct lpfc_hba *);
int lpfc_fof_queue_setup(struct lpfc_hba *);
int lpfc_fof_queue_destroy(struct lpfc_hba *);
irqreturn_t lpfc_sli4_fof_intr_handler(int, void *);
int lpfc_sli_setup(struct lpfc_hba *);
int lpfc_sli_queue_setup(struct lpfc_hba *);
@ -472,3 +477,20 @@ void lpfc_free_sgl_list(struct lpfc_hba *, struct list_head *);
uint32_t lpfc_sli_port_speed_get(struct lpfc_hba *);
int lpfc_sli4_request_firmware_update(struct lpfc_hba *, uint8_t);
void lpfc_sli4_offline_eratt(struct lpfc_hba *);
struct lpfc_device_data *lpfc_create_device_data(struct lpfc_hba *,
struct lpfc_name *,
struct lpfc_name *,
uint64_t, bool);
void lpfc_delete_device_data(struct lpfc_hba *, struct lpfc_device_data*);
struct lpfc_device_data *__lpfc_get_device_data(struct lpfc_hba *,
struct list_head *list,
struct lpfc_name *,
struct lpfc_name *, uint64_t);
bool lpfc_enable_oas_lun(struct lpfc_hba *, struct lpfc_name *,
struct lpfc_name *, uint64_t);
bool lpfc_disable_oas_lun(struct lpfc_hba *, struct lpfc_name *,
struct lpfc_name *, uint64_t);
bool lpfc_find_next_oas_lun(struct lpfc_hba *, struct lpfc_name *,
struct lpfc_name *, uint64_t *, struct lpfc_name *,
struct lpfc_name *, uint64_t *, uint32_t *);

98
drivers/scsi/lpfc/lpfc_debugfs.c
View File

@ -2280,6 +2280,104 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
}
}
if (phba->cfg_fof) {
/* FOF EQ */
qp = phba->sli4_hba.fof_eq;
if (!qp)
goto out;
len += snprintf(pbuffer+len,
LPFC_QUE_INFO_GET_BUF_SIZE-len,
"\nFOF EQ info: "
"EQ-STAT[max:x%x noE:x%x "
"bs:x%x proc:x%llx]\n",
qp->q_cnt_1, qp->q_cnt_2,
qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
len += snprintf(pbuffer+len,
LPFC_QUE_INFO_GET_BUF_SIZE-len,
"EQID[%02d], "
"QE-CNT[%04d], QE-SIZE[%04d], "
"HOST-IDX[%04d], PORT-IDX[%04d]",
qp->queue_id,
qp->entry_count,
qp->entry_size,
qp->host_index,
qp->hba_index);
/* Reset max counter */
qp->EQ_max_eqe = 0;
len += snprintf(pbuffer+len,
LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
if (len >= max_cnt)
goto too_big;
}
if (phba->cfg_EnableXLane) {
/* OAS CQ */
qp = phba->sli4_hba.oas_cq;
if (qp) {
len += snprintf(pbuffer+len,
LPFC_QUE_INFO_GET_BUF_SIZE-len,
"\tOAS CQ info: ");
len += snprintf(pbuffer+len,
LPFC_QUE_INFO_GET_BUF_SIZE-len,
"AssocEQID[%02d]: "
"CQ STAT[max:x%x relw:x%x "
"xabt:x%x wq:x%llx]\n",
qp->assoc_qid,
qp->q_cnt_1, qp->q_cnt_2,
qp->q_cnt_3, (unsigned long long)qp->q_cnt_4);
len += snprintf(pbuffer+len,
LPFC_QUE_INFO_GET_BUF_SIZE-len,
"\tCQID[%02d], "
"QE-CNT[%04d], QE-SIZE[%04d], "
"HOST-IDX[%04d], PORT-IDX[%04d]",
qp->queue_id, qp->entry_count,
qp->entry_size, qp->host_index,
qp->hba_index);
/* Reset max counter */
qp->CQ_max_cqe = 0;
len += snprintf(pbuffer+len,
LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
if (len >= max_cnt)
goto too_big;
}
/* OAS WQ */
qp = phba->sli4_hba.oas_wq;
if (qp) {
len += snprintf(pbuffer+len,
LPFC_QUE_INFO_GET_BUF_SIZE-len,
"\t\tOAS WQ info: ");
len += snprintf(pbuffer+len,
LPFC_QUE_INFO_GET_BUF_SIZE-len,
"AssocCQID[%02d]: "
"WQ-STAT[oflow:x%x posted:x%llx]\n",
qp->assoc_qid,
qp->q_cnt_1, (unsigned long long)qp->q_cnt_4);
len += snprintf(pbuffer+len,
LPFC_QUE_INFO_GET_BUF_SIZE-len,
"\t\tWQID[%02d], "
"QE-CNT[%04d], QE-SIZE[%04d], "
"HOST-IDX[%04d], PORT-IDX[%04d]",
qp->queue_id,
qp->entry_count,
qp->entry_size,
qp->host_index,
qp->hba_index);
len += snprintf(pbuffer+len,
LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
if (len >= max_cnt)
goto too_big;
}
}
out:
spin_unlock_irq(&phba->hbalock);
return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);

1
drivers/scsi/lpfc/lpfc_hw.h
View File

@ -45,6 +45,7 @@
#define LPFC_EXTRA_RING 1 /* ring 1 for other protocols */
#define LPFC_ELS_RING 2 /* ring 2 for ELS commands */
#define LPFC_FCP_NEXT_RING 3
#define LPFC_FCP_OAS_RING 3
#define SLI2_IOCB_CMD_R0_ENTRIES 172 /* SLI-2 FCP command ring entries */
#define SLI2_IOCB_RSP_R0_ENTRIES 134 /* SLI-2 FCP response ring entries */

6
drivers/scsi/lpfc/lpfc_hw4.h
View File

@ -2616,6 +2616,9 @@ struct lpfc_sli4_parameters {
#define cfg_phwq_SHIFT 15
#define cfg_phwq_MASK 0x00000001
#define cfg_phwq_WORD word12
#define cfg_oas_SHIFT 25
#define cfg_oas_MASK 0x00000001
#define cfg_oas_WORD word12
#define cfg_loopbk_scope_SHIFT 28
#define cfg_loopbk_scope_MASK 0x0000000f
#define cfg_loopbk_scope_WORD word12
@ -3322,6 +3325,9 @@ struct wqe_common {
#define wqe_ebde_cnt_SHIFT 0
#define wqe_ebde_cnt_MASK 0x0000000f
#define wqe_ebde_cnt_WORD word10
#define wqe_oas_SHIFT 6
#define wqe_oas_MASK 0x00000001
#define wqe_oas_WORD word10
#define wqe_lenloc_SHIFT 7
#define wqe_lenloc_MASK 0x00000003
#define wqe_lenloc_WORD word10

241
drivers/scsi/lpfc/lpfc_init.c
View File

@ -80,6 +80,7 @@ static void lpfc_sli4_cq_event_pool_destroy(struct lpfc_hba *);
static void lpfc_sli4_cq_event_release_all(struct lpfc_hba *);
static void lpfc_sli4_disable_intr(struct lpfc_hba *);
static uint32_t lpfc_sli4_enable_intr(struct lpfc_hba *, uint32_t);
static void lpfc_sli4_oas_verify(struct lpfc_hba *phba);
static struct scsi_transport_template *lpfc_transport_template = NULL;
static struct scsi_transport_template *lpfc_vport_transport_template = NULL;
@ -4856,6 +4857,7 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
uint8_t pn_page[LPFC_MAX_SUPPORTED_PAGES] = {0};
struct lpfc_mqe *mqe;
int longs;
int fof_vectors = 0;
/* Get all the module params for configuring this host */
lpfc_get_cfgparam(phba);
@ -5121,6 +5123,12 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
}
}
mempool_free(mboxq, phba->mbox_mem_pool);
/* Verify OAS is supported */
lpfc_sli4_oas_verify(phba);
if (phba->cfg_fof)
fof_vectors = 1;
/* Verify all the SLI4 queues */
rc = lpfc_sli4_queue_verify(phba);
if (rc)
@ -5162,7 +5170,8 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
phba->sli4_hba.fcp_eq_hdl =
kzalloc((sizeof(struct lpfc_fcp_eq_hdl) *
phba->cfg_fcp_io_channel), GFP_KERNEL);
(fof_vectors + phba->cfg_fcp_io_channel)),
GFP_KERNEL);
if (!phba->sli4_hba.fcp_eq_hdl) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2572 Failed allocate memory for "
@ -5172,7 +5181,8 @@ lpfc_sli4_driver_resource_setup(struct lpfc_hba *phba)
}
phba->sli4_hba.msix_entries = kzalloc((sizeof(struct msix_entry) *
phba->cfg_fcp_io_channel), GFP_KERNEL);
(fof_vectors +
phba->cfg_fcp_io_channel)), GFP_KERNEL);
if (!phba->sli4_hba.msix_entries) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"2573 Failed allocate memory for msi-x "
@ -5393,6 +5403,10 @@ lpfc_setup_driver_resource_phase1(struct lpfc_hba *phba)
/* Initialize FCF connection rec list */
INIT_LIST_HEAD(&phba->fcf_conn_rec_list);
/* Initialize OAS configuration list */
spin_lock_init(&phba->devicelock);
INIT_LIST_HEAD(&phba->luns);
return 0;
}
@ -6819,6 +6833,7 @@ lpfc_sli4_queue_verify(struct lpfc_hba *phba)
int cfg_fcp_io_channel;
uint32_t cpu;
uint32_t i = 0;
int fof_vectors = phba->cfg_fof ? 1 : 0;
/*
* Sanity check for configured queue parameters against the run-time
@ -6845,7 +6860,7 @@ lpfc_sli4_queue_verify(struct lpfc_hba *phba)
cfg_fcp_io_channel = i;
}
if (cfg_fcp_io_channel >
if (cfg_fcp_io_channel + fof_vectors >
phba->sli4_hba.max_cfg_param.max_eq) {
if (phba->sli4_hba.max_cfg_param.max_eq <
LPFC_FCP_IO_CHAN_MIN) {
@ -6862,7 +6877,8 @@ lpfc_sli4_queue_verify(struct lpfc_hba *phba)
"available EQs: from %d to %d\n",
cfg_fcp_io_channel,
phba->sli4_hba.max_cfg_param.max_eq);
cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq;
cfg_fcp_io_channel = phba->sli4_hba.max_cfg_param.max_eq -
fof_vectors;
}
/* The actual number of FCP event queues adopted */
@ -7073,6 +7089,9 @@ lpfc_sli4_queue_create(struct lpfc_hba *phba)
}
phba->sli4_hba.dat_rq = qdesc;
/* Create the Queues needed for Flash Optimized Fabric operations */
if (phba->cfg_fof)
lpfc_fof_queue_create(phba);
return 0;
out_error:
@ -7097,6 +7116,9 @@ lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
{
int idx;
if (phba->cfg_fof)
lpfc_fof_queue_destroy(phba);
if (phba->sli4_hba.hba_eq != NULL) {
/* Release HBA event queue */
for (idx = 0; idx < phba->cfg_fcp_io_channel; idx++) {
@ -7481,8 +7503,20 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
phba->sli4_hba.hdr_rq->queue_id,
phba->sli4_hba.dat_rq->queue_id,
phba->sli4_hba.els_cq->queue_id);
if (phba->cfg_fof) {
rc = lpfc_fof_queue_setup(phba);
if (rc) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"0549 Failed setup of FOF Queues: "
"rc = 0x%x\n", rc);
goto out_destroy_els_rq;
}
}
return 0;
out_destroy_els_rq:
lpfc_rq_destroy(phba, phba->sli4_hba.hdr_rq, phba->sli4_hba.dat_rq);
out_destroy_els_wq:
lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
out_destroy_mbx_wq:
@ -7521,6 +7555,9 @@ lpfc_sli4_queue_unset(struct lpfc_hba *phba)
{
int fcp_qidx;
/* Unset the queues created for Flash Optimized Fabric operations */
if (phba->cfg_fof)
lpfc_fof_queue_destroy(phba);
/* Unset mailbox command work queue */
lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
/* Unset ELS work queue */
@ -8638,6 +8675,10 @@ lpfc_sli4_enable_msix(struct lpfc_hba *phba)
/* Configure MSI-X capability structure */
vectors = phba->cfg_fcp_io_channel;
if (phba->cfg_fof) {
phba->sli4_hba.msix_entries[index].entry = index;
vectors++;
}
enable_msix_vectors:
rc = pci_enable_msix(phba->pcidev, phba->sli4_hba.msix_entries,
vectors);
@ -8667,7 +8708,15 @@ lpfc_sli4_enable_msix(struct lpfc_hba *phba)
phba->sli4_hba.fcp_eq_hdl[index].idx = index;
phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].fcp_eq_in_use, 1);
rc = request_irq(phba->sli4_hba.msix_entries[index].vector,
if (phba->cfg_fof && (index == (vectors - 1)))
rc = request_irq(
phba->sli4_hba.msix_entries[index].vector,
&lpfc_sli4_fof_intr_handler, IRQF_SHARED,
(char *)&phba->sli4_hba.handler_name[index],
&phba->sli4_hba.fcp_eq_hdl[index]);
else
rc = request_irq(
phba->sli4_hba.msix_entries[index].vector,
&lpfc_sli4_hba_intr_handler, IRQF_SHARED,
(char *)&phba->sli4_hba.handler_name[index],
&phba->sli4_hba.fcp_eq_hdl[index]);
@ -8679,6 +8728,9 @@ lpfc_sli4_enable_msix(struct lpfc_hba *phba)
}
}
if (phba->cfg_fof)
vectors--;
if (vectors != phba->cfg_fcp_io_channel) {
lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
"3238 Reducing IO channels to match number of "
@ -8724,7 +8776,10 @@ lpfc_sli4_disable_msix(struct lpfc_hba *phba)
free_irq(phba->sli4_hba.msix_entries[index].vector,
&phba->sli4_hba.fcp_eq_hdl[index]);
}
if (phba->cfg_fof) {
free_irq(phba->sli4_hba.msix_entries[index].vector,
&phba->sli4_hba.fcp_eq_hdl[index]);
}
/* Disable MSI-X */
pci_disable_msix(phba->pcidev);
@ -8774,6 +8829,10 @@ lpfc_sli4_enable_msi(struct lpfc_hba *phba)
phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
}
if (phba->cfg_fof) {
phba->sli4_hba.fcp_eq_hdl[index].idx = index;
phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
}
return 0;
}
@ -8856,6 +8915,12 @@ lpfc_sli4_enable_intr(struct lpfc_hba *phba, uint32_t cfg_mode)
atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
fcp_eq_in_use, 1);
}
if (phba->cfg_fof) {
phba->sli4_hba.fcp_eq_hdl[index].idx = index;
phba->sli4_hba.fcp_eq_hdl[index].phba = phba;
atomic_set(&phba->sli4_hba.fcp_eq_hdl[index].
fcp_eq_in_use, 1);
}
}
}
return intr_mode;
@ -9166,6 +9231,7 @@ lpfc_get_sli4_parameters(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
phba->sli3_options &= ~LPFC_SLI4_PHWQ_ENABLED;
sli4_params->sge_supp_len = mbx_sli4_parameters->sge_supp_len;
sli4_params->loopbk_scope = bf_get(loopbk_scope, mbx_sli4_parameters);
sli4_params->oas_supported = bf_get(cfg_oas, mbx_sli4_parameters);
sli4_params->cqv = bf_get(cfg_cqv, mbx_sli4_parameters);
sli4_params->mqv = bf_get(cfg_mqv, mbx_sli4_parameters);
sli4_params->wqv = bf_get(cfg_wqv, mbx_sli4_parameters);
@ -10799,6 +10865,169 @@ lpfc_io_resume(struct pci_dev *pdev)
return;
}
/**
* lpfc_sli4_oas_verify - Verify OAS is supported by this adapter
* @phba: pointer to lpfc hba data structure.
*
* This routine checks to see if OAS is supported for this adapter. If
* supported, the configure Flash Optimized Fabric flag is set. Otherwise,
* the enable oas flag is cleared and the pool created for OAS device data
* is destroyed.
*
**/
void
lpfc_sli4_oas_verify(struct lpfc_hba *phba)
{
if (!phba->cfg_EnableXLane)
return;
if (phba->sli4_hba.pc_sli4_params.oas_supported) {
phba->cfg_fof = 1;
} else {
phba->cfg_EnableXLane = 0;
if (phba->device_data_mem_pool)
mempool_destroy(phba->device_data_mem_pool);
phba->device_data_mem_pool = NULL;
}
return;
}
/**
* lpfc_fof_queue_setup - Set up all the fof queues
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to set up all the fof queues for the FC HBA
* operation.
*
* Return codes
* 0 - successful
* -ENOMEM - No available memory
**/
int
lpfc_fof_queue_setup(struct lpfc_hba *phba)
{
struct lpfc_sli *psli = &phba->sli;
int rc;
rc = lpfc_eq_create(phba, phba->sli4_hba.fof_eq, LPFC_MAX_IMAX);
if (rc)
return -ENOMEM;
if (phba->cfg_EnableXLane) {
rc = lpfc_cq_create(phba, phba->sli4_hba.oas_cq,
phba->sli4_hba.fof_eq, LPFC_WCQ, LPFC_FCP);
if (rc)
goto out_oas_cq;
rc = lpfc_wq_create(phba, phba->sli4_hba.oas_wq,
phba->sli4_hba.oas_cq, LPFC_FCP);
if (rc)
goto out_oas_wq;
phba->sli4_hba.oas_cq->pring = &psli->ring[LPFC_FCP_OAS_RING];
phba->sli4_hba.oas_ring = &psli->ring[LPFC_FCP_OAS_RING];
}
return 0;
out_oas_wq:
if (phba->cfg_EnableXLane)
lpfc_cq_destroy(phba, phba->sli4_hba.oas_cq);
out_oas_cq:
lpfc_eq_destroy(phba, phba->sli4_hba.fof_eq);
return rc;
}
/**
* lpfc_fof_queue_create - Create all the fof queues
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to allocate all the fof queues for the FC HBA
* operation. For each SLI4 queue type, the parameters such as queue entry
* count (queue depth) shall be taken from the module parameter. For now,
* we just use some constant number as place holder.
*
* Return codes
* 0 - successful
* -ENOMEM - No availble memory
* -EIO - The mailbox failed to complete successfully.
**/
int
lpfc_fof_queue_create(struct lpfc_hba *phba)
{
struct lpfc_queue *qdesc;
/* Create FOF EQ */
qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.eq_esize,
phba->sli4_hba.eq_ecount);
if (!qdesc)
goto out_error;
phba->sli4_hba.fof_eq = qdesc;
if (phba->cfg_EnableXLane) {
/* Create OAS CQ */
qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.cq_esize,
phba->sli4_hba.cq_ecount);
if (!qdesc)
goto out_error;
phba->sli4_hba.oas_cq = qdesc;
/* Create OAS WQ */
qdesc = lpfc_sli4_queue_alloc(phba, phba->sli4_hba.wq_esize,
phba->sli4_hba.wq_ecount);
if (!qdesc)
goto out_error;
phba->sli4_hba.oas_wq = qdesc;
}
return 0;
out_error:
lpfc_fof_queue_destroy(phba);
return -ENOMEM;
}
/**
* lpfc_fof_queue_destroy - Destroy all the fof queues
* @phba: pointer to lpfc hba data structure.
*
* This routine is invoked to release all the SLI4 queues with the FC HBA
* operation.
*
* Return codes
* 0 - successful
**/
int
lpfc_fof_queue_destroy(struct lpfc_hba *phba)
{
/* Release FOF Event queue */
if (phba->sli4_hba.fof_eq != NULL) {
lpfc_sli4_queue_free(phba->sli4_hba.fof_eq);
phba->sli4_hba.fof_eq = NULL;
}
/* Release OAS Completion queue */
if (phba->sli4_hba.oas_cq != NULL) {
lpfc_sli4_queue_free(phba->sli4_hba.oas_cq);
phba->sli4_hba.oas_cq = NULL;
}
/* Release OAS Work queue */
if (phba->sli4_hba.oas_wq != NULL) {
lpfc_sli4_queue_free(phba->sli4_hba.oas_wq);
phba->sli4_hba.oas_wq = NULL;
}
return 0;
}
static struct pci_device_id lpfc_id_table[] = {
{PCI_VENDOR_ID_EMULEX, PCI_DEVICE_ID_VIPER,
PCI_ANY_ID, PCI_ANY_ID, },

25
drivers/scsi/lpfc/lpfc_mem.c
View File

@ -42,6 +42,7 @@
#define LPFC_MBUF_POOL_SIZE 64 /* max elements in MBUF safety pool */
#define LPFC_MEM_POOL_SIZE 64 /* max elem in non-DMA safety pool */
#define LPFC_DEVICE_DATA_POOL_SIZE 64 /* max elements in device data pool */
int
lpfc_mem_alloc_active_rrq_pool_s4(struct lpfc_hba *phba) {
@ -164,6 +165,16 @@ lpfc_mem_alloc(struct lpfc_hba *phba, int align)
phba->lpfc_drb_pool = NULL;
}
if (phba->cfg_EnableXLane) {
phba->device_data_mem_pool = mempool_create_kmalloc_pool(
LPFC_DEVICE_DATA_POOL_SIZE,
sizeof(struct lpfc_device_data));
if (!phba->device_data_mem_pool)
goto fail_free_hrb_pool;
} else {
phba->device_data_mem_pool = NULL;
}
return 0;
fail_free_hrb_pool:
pci_pool_destroy(phba->lpfc_hrb_pool);
@ -206,6 +217,7 @@ lpfc_mem_free(struct lpfc_hba *phba)
{
int i;
struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool;
struct lpfc_device_data *device_data;
/* Free HBQ pools */
lpfc_sli_hbqbuf_free_all(phba);
@ -249,6 +261,19 @@ lpfc_mem_free(struct lpfc_hba *phba)
pci_pool_destroy(phba->lpfc_scsi_dma_buf_pool);
phba->lpfc_scsi_dma_buf_pool = NULL;
/* Free Device Data memory pool */
if (phba->device_data_mem_pool) {
/* Ensure all objects have been returned to the pool */
while (!list_empty(&phba->luns)) {
device_data = list_first_entry(&phba->luns,
struct lpfc_device_data,
listentry);
list_del(&device_data->listentry);
mempool_free(device_data, phba->device_data_mem_pool);
}
mempool_destroy(phba->device_data_mem_pool);
}
phba->device_data_mem_pool = NULL;
return;
}

406
drivers/scsi/lpfc/lpfc_scsi.c
View File

@ -68,6 +68,17 @@ struct scsi_dif_tuple {
__be32 ref_tag; /* Target LBA or indirect LBA */
};
static struct lpfc_rport_data *
lpfc_rport_data_from_scsi_device(struct scsi_device *sdev)
{
struct lpfc_vport *vport = (struct lpfc_vport *)sdev->host->hostdata;
if (vport->phba->cfg_EnableXLane)
return ((struct lpfc_device_data *)sdev->hostdata)->rport_data;
else
return (struct lpfc_rport_data *)sdev->hostdata;
}
static void
lpfc_release_scsi_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *psb);
static void
@ -306,7 +317,7 @@ lpfc_change_queue_depth(struct scsi_device *sdev, int qdepth, int reason)
old_queue_depth = sdev->queue_depth;
scsi_adjust_queue_depth(sdev, scsi_get_tag_type(sdev), qdepth);
new_queue_depth = sdev->queue_depth;
rdata = sdev->hostdata;
rdata = lpfc_rport_data_from_scsi_device(sdev);
if (rdata)
lpfc_send_sdev_queuedepth_change_event(phba, vport,
rdata->pnode, sdev->lun,
@ -1502,7 +1513,7 @@ lpfc_bg_err_inject(struct lpfc_hba *phba, struct scsi_cmnd *sc,
}
/* Next check if we need to match the remote NPortID or WWPN */
rdata = sc->device->hostdata;
rdata = lpfc_rport_data_from_scsi_device(sc->device);
if (rdata && rdata->pnode) {
ndlp = rdata->pnode;
@ -3507,6 +3518,14 @@ lpfc_scsi_prep_dma_buf_s4(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
* we need to set word 4 of IOCB here
*/
iocb_cmd->un.fcpi.fcpi_parm = scsi_bufflen(scsi_cmnd);
/*
* If the OAS driver feature is enabled and the lun is enabled for
* OAS, set the oas iocb related flags.
*/
if ((phba->cfg_EnableXLane) && ((struct lpfc_device_data *)
scsi_cmnd->device->hostdata)->oas_enabled)
lpfc_cmd->cur_iocbq.iocb_flag |= LPFC_IO_OAS;
return 0;
}
@ -4691,12 +4710,13 @@ lpfc_queuecommand(struct Scsi_Host *shost, struct scsi_cmnd *cmnd)
{
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
struct lpfc_rport_data *rdata = cmnd->device->hostdata;
struct lpfc_rport_data *rdata;
struct lpfc_nodelist *ndlp;
struct lpfc_scsi_buf *lpfc_cmd;
struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
int err;
rdata = lpfc_rport_data_from_scsi_device(cmnd->device);
err = fc_remote_port_chkready(rport);
if (err) {
cmnd->result = err;
@ -5179,10 +5199,11 @@ lpfc_send_taskmgmt(struct lpfc_vport *vport, struct lpfc_rport_data *rdata,
static int
lpfc_chk_tgt_mapped(struct lpfc_vport *vport, struct scsi_cmnd *cmnd)
{
struct lpfc_rport_data *rdata = cmnd->device->hostdata;
struct lpfc_rport_data *rdata;
struct lpfc_nodelist *pnode;
unsigned long later;
rdata = lpfc_rport_data_from_scsi_device(cmnd->device);
if (!rdata) {
lpfc_printf_vlog(vport, KERN_INFO, LOG_FCP,
"0797 Tgt Map rport failure: rdata x%p\n", rdata);
@ -5200,7 +5221,7 @@ lpfc_chk_tgt_mapped(struct lpfc_vport *vport, struct scsi_cmnd *cmnd)
if (pnode->nlp_state == NLP_STE_MAPPED_NODE)
return SUCCESS;
schedule_timeout_uninterruptible(msecs_to_jiffies(500));
rdata = cmnd->device->hostdata;
rdata = lpfc_rport_data_from_scsi_device(cmnd->device);
if (!rdata)
return FAILED;
pnode = rdata->pnode;
@ -5272,13 +5293,14 @@ lpfc_device_reset_handler(struct scsi_cmnd *cmnd)
{
struct Scsi_Host *shost = cmnd->device->host;
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_rport_data *rdata = cmnd->device->hostdata;
struct lpfc_rport_data *rdata;
struct lpfc_nodelist *pnode;
unsigned tgt_id = cmnd->device->id;
unsigned int lun_id = cmnd->device->lun;
struct lpfc_scsi_event_header scsi_event;
int status;
rdata = lpfc_rport_data_from_scsi_device(cmnd->device);
if (!rdata) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP,
"0798 Device Reset rport failure: rdata x%p\n", rdata);
@ -5341,13 +5363,14 @@ lpfc_target_reset_handler(struct scsi_cmnd *cmnd)
{
struct Scsi_Host *shost = cmnd->device->host;
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_rport_data *rdata = cmnd->device->hostdata;
struct lpfc_rport_data *rdata;
struct lpfc_nodelist *pnode;
unsigned tgt_id = cmnd->device->id;
unsigned int lun_id = cmnd->device->lun;
struct lpfc_scsi_event_header scsi_event;
int status;
rdata = lpfc_rport_data_from_scsi_device(cmnd->device);
if (!rdata) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP,
"0799 Target Reset rport failure: rdata x%p\n", rdata);
@ -5547,11 +5570,45 @@ lpfc_slave_alloc(struct scsi_device *sdev)
uint32_t num_to_alloc = 0;
int num_allocated = 0;
uint32_t sdev_cnt;
struct lpfc_device_data *device_data;
unsigned long flags;
struct lpfc_name target_wwpn;
if (!rport || fc_remote_port_chkready(rport))
return -ENXIO;
sdev->hostdata = rport->dd_data;
if (phba->cfg_EnableXLane) {
/*
* Check to see if the device data structure for the lun
* exists. If not, create one.
*/
u64_to_wwn(rport->port_name, target_wwpn.u.wwn);
spin_lock_irqsave(&phba->devicelock, flags);
device_data = __lpfc_get_device_data(phba,
&phba->luns,
&vport->fc_portname,
&target_wwpn,
sdev->lun);
if (!device_data) {
spin_unlock_irqrestore(&phba->devicelock, flags);
device_data = lpfc_create_device_data(phba,
&vport->fc_portname,
&target_wwpn,
sdev->lun, true);
if (!device_data)
return -ENOMEM;
spin_lock_irqsave(&phba->devicelock, flags);
list_add_tail(&device_data->listentry, &phba->luns);
}
device_data->rport_data = rport->dd_data;
device_data->available = true;
spin_unlock_irqrestore(&phba->devicelock, flags);
sdev->hostdata = device_data;
} else {
sdev->hostdata = rport->dd_data;
}
sdev_cnt = atomic_inc_return(&phba->sdev_cnt);
/*
@ -5641,11 +5698,344 @@ lpfc_slave_destroy(struct scsi_device *sdev)
{
struct lpfc_vport *vport = (struct lpfc_vport *) sdev->host->hostdata;
struct lpfc_hba *phba = vport->phba;
unsigned long flags;
struct lpfc_device_data *device_data = sdev->hostdata;
atomic_dec(&phba->sdev_cnt);
if ((phba->cfg_EnableXLane) && (device_data)) {
spin_lock_irqsave(&phba->devicelock, flags);
device_data->available = false;
if (!device_data->oas_enabled)
lpfc_delete_device_data(phba, device_data);
spin_unlock_irqrestore(&phba->devicelock, flags);
}
sdev->hostdata = NULL;
return;
}
/**
* lpfc_create_device_data - creates and initializes device data structure for OAS
* @pha: Pointer to host bus adapter structure.
* @vport_wwpn: Pointer to vport's wwpn information
* @target_wwpn: Pointer to target's wwpn information
* @lun: Lun on target
* @atomic_create: Flag to indicate if memory should be allocated using the
* GFP_ATOMIC flag or not.
*
* This routine creates a device data structure which will contain identifying
* information for the device (host wwpn, target wwpn, lun), state of OAS,
* whether or not the corresponding lun is available by the system,
* and pointer to the rport data.
*
* Return codes:
* NULL - Error
* Pointer to lpfc_device_data - Success
**/
struct lpfc_device_data*
lpfc_create_device_data(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn,
struct lpfc_name *target_wwpn, uint64_t lun,
bool atomic_create)
{
struct lpfc_device_data *lun_info;
int memory_flags;
if (unlikely(!phba) || !vport_wwpn || !target_wwpn ||
!(phba->cfg_EnableXLane))
return NULL;
/* Attempt to create the device data to contain lun info */
if (atomic_create)
memory_flags = GFP_ATOMIC;
else
memory_flags = GFP_KERNEL;
lun_info = mempool_alloc(phba->device_data_mem_pool, memory_flags);
if (!lun_info)
return NULL;
INIT_LIST_HEAD(&lun_info->listentry);
lun_info->rport_data = NULL;
memcpy(&lun_info->device_id.vport_wwpn, vport_wwpn,
sizeof(struct lpfc_name));
memcpy(&lun_info->device_id.target_wwpn, target_wwpn,
sizeof(struct lpfc_name));
lun_info->device_id.lun = lun;
lun_info->oas_enabled = false;
lun_info->available = false;
return lun_info;
}
/**
* lpfc_delete_device_data - frees a device data structure for OAS
* @pha: Pointer to host bus adapter structure.
* @lun_info: Pointer to device data structure to free.
*
* This routine frees the previously allocated device data structure passed.
*
**/
void
lpfc_delete_device_data(struct lpfc_hba *phba,
struct lpfc_device_data *lun_info)
{
if (unlikely(!phba) || !lun_info ||
!(phba->cfg_EnableXLane))
return;
if (!list_empty(&lun_info->listentry))
list_del(&lun_info->listentry);
mempool_free(lun_info, phba->device_data_mem_pool);
return;
}
/**
* __lpfc_get_device_data - returns the device data for the specified lun
* @pha: Pointer to host bus adapter structure.
* @list: Point to list to search.
* @vport_wwpn: Pointer to vport's wwpn information
* @target_wwpn: Pointer to target's wwpn information
* @lun: Lun on target
*
* This routine searches the list passed for the specified lun's device data.
* This function does not hold locks, it is the responsibility of the caller
* to ensure the proper lock is held before calling the function.
*
* Return codes:
* NULL - Error
* Pointer to lpfc_device_data - Success
**/
struct lpfc_device_data*
__lpfc_get_device_data(struct lpfc_hba *phba, struct list_head *list,
struct lpfc_name *vport_wwpn,
struct lpfc_name *target_wwpn, uint64_t lun)
{
struct lpfc_device_data *lun_info;
if (unlikely(!phba) || !list || !vport_wwpn || !target_wwpn ||
!phba->cfg_EnableXLane)
return NULL;
/* Check to see if the lun is already enabled for OAS. */
list_for_each_entry(lun_info, list, listentry) {
if ((memcmp(&lun_info->device_id.vport_wwpn, vport_wwpn,
sizeof(struct lpfc_name)) == 0) &&
(memcmp(&lun_info->device_id.target_wwpn, target_wwpn,
sizeof(struct lpfc_name)) == 0) &&
(lun_info->device_id.lun == lun))
return lun_info;
}
return NULL;
}
/**
* lpfc_find_next_oas_lun - searches for the next oas lun
* @pha: Pointer to host bus adapter structure.
* @vport_wwpn: Pointer to vport's wwpn information
* @target_wwpn: Pointer to target's wwpn information
* @starting_lun: Pointer to the lun to start searching for
* @found_vport_wwpn: Pointer to the found lun's vport wwpn information
* @found_target_wwpn: Pointer to the found lun's target wwpn information
* @found_lun: Pointer to the found lun.
* @found_lun_status: Pointer to status of the found lun.
*
* This routine searches the luns list for the specified lun
* or the first lun for the vport/target. If the vport wwpn contains
* a zero value then a specific vport is not specified. In this case
* any vport which contains the lun will be considered a match. If the
* target wwpn contains a zero value then a specific target is not specified.
* In this case any target which contains the lun will be considered a
* match. If the lun is found, the lun, vport wwpn, target wwpn and lun status
* are returned. The function will also return the next lun if available.
* If the next lun is not found, starting_lun parameter will be set to
* NO_MORE_OAS_LUN.
*
* Return codes:
* non-0 - Error
* 0 - Success
**/
bool
lpfc_find_next_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn,
struct lpfc_name *target_wwpn, uint64_t *starting_lun,
struct lpfc_name *found_vport_wwpn,
struct lpfc_name *found_target_wwpn,
uint64_t *found_lun,
uint32_t *found_lun_status)
{
unsigned long flags;
struct lpfc_device_data *lun_info;
struct lpfc_device_id *device_id;
uint64_t lun;
bool found = false;
if (unlikely(!phba) || !vport_wwpn || !target_wwpn ||
!starting_lun || !found_vport_wwpn ||
!found_target_wwpn || !found_lun || !found_lun_status ||
(*starting_lun == NO_MORE_OAS_LUN) ||
!phba->cfg_EnableXLane)
return false;
lun = *starting_lun;
*found_lun = NO_MORE_OAS_LUN;
*starting_lun = NO_MORE_OAS_LUN;
/* Search for lun or the lun closet in value */
spin_lock_irqsave(&phba->devicelock, flags);
list_for_each_entry(lun_info, &phba->luns, listentry) {
if (((wwn_to_u64(vport_wwpn->u.wwn) == 0) ||
(memcmp(&lun_info->device_id.vport_wwpn, vport_wwpn,
sizeof(struct lpfc_name)) == 0)) &&
((wwn_to_u64(target_wwpn->u.wwn) == 0) ||
(memcmp(&lun_info->device_id.target_wwpn, target_wwpn,
sizeof(struct lpfc_name)) == 0)) &&
(lun_info->oas_enabled)) {
device_id = &lun_info->device_id;
if ((!found) &&
((lun == FIND_FIRST_OAS_LUN) ||
(device_id->lun == lun))) {
*found_lun = device_id->lun;
memcpy(found_vport_wwpn,
&device_id->vport_wwpn,
sizeof(struct lpfc_name));
memcpy(found_target_wwpn,
&device_id->target_wwpn,
sizeof(struct lpfc_name));
if (lun_info->available)
*found_lun_status =
OAS_LUN_STATUS_EXISTS;
else
*found_lun_status = 0;
if (phba->cfg_oas_flags & OAS_FIND_ANY_VPORT)
memset(vport_wwpn, 0x0,
sizeof(struct lpfc_name));
if (phba->cfg_oas_flags & OAS_FIND_ANY_TARGET)
memset(target_wwpn, 0x0,
sizeof(struct lpfc_name));
found = true;
} else if (found) {
*starting_lun = device_id->lun;
memcpy(vport_wwpn, &device_id->vport_wwpn,
sizeof(struct lpfc_name));
memcpy(target_wwpn, &device_id->target_wwpn,
sizeof(struct lpfc_name));
break;
}
}
}
spin_unlock_irqrestore(&phba->devicelock, flags);
return found;
}
/**
* lpfc_enable_oas_lun - enables a lun for OAS operations
* @pha: Pointer to host bus adapter structure.
* @vport_wwpn: Pointer to vport's wwpn information
* @target_wwpn: Pointer to target's wwpn information
* @lun: Lun
*
* This routine enables a lun for oas operations. The routines does so by
* doing the following :
*
* 1) Checks to see if the device data for the lun has been created.
* 2) If found, sets the OAS enabled flag if not set and returns.
* 3) Otherwise, creates a device data structure.
* 4) If successfully created, indicates the device data is for an OAS lun,
* indicates the lun is not available and add to the list of luns.
*
* Return codes:
* false - Error
* true - Success
**/
bool
lpfc_enable_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn,
struct lpfc_name *target_wwpn, uint64_t lun)
{
struct lpfc_device_data *lun_info;
unsigned long flags;
if (unlikely(!phba) || !vport_wwpn || !target_wwpn ||
!phba->cfg_EnableXLane)
return false;
spin_lock_irqsave(&phba->devicelock, flags);
/* Check to see if the device data for the lun has been created */
lun_info = __lpfc_get_device_data(phba, &phba->luns, vport_wwpn,
target_wwpn, lun);
if (lun_info) {
if (!lun_info->oas_enabled)
lun_info->oas_enabled = true;
spin_unlock_irqrestore(&phba->devicelock, flags);
return true;
}
/* Create an lun info structure and add to list of luns */
lun_info = lpfc_create_device_data(phba, vport_wwpn, target_wwpn, lun,
false);
if (lun_info) {
lun_info->oas_enabled = true;
lun_info->available = false;
list_add_tail(&lun_info->listentry, &phba->luns);
spin_unlock_irqrestore(&phba->devicelock, flags);
return true;
}
spin_unlock_irqrestore(&phba->devicelock, flags);
return false;
}
/**
* lpfc_disable_oas_lun - disables a lun for OAS operations
* @pha: Pointer to host bus adapter structure.
* @vport_wwpn: Pointer to vport's wwpn information
* @target_wwpn: Pointer to target's wwpn information
* @lun: Lun
*
* This routine disables a lun for oas operations. The routines does so by
* doing the following :
*
* 1) Checks to see if the device data for the lun is created.
* 2) If present, clears the flag indicating this lun is for OAS.
* 3) If the lun is not available by the system, the device data is
* freed.
*
* Return codes:
* false - Error
* true - Success
**/
bool
lpfc_disable_oas_lun(struct lpfc_hba *phba, struct lpfc_name *vport_wwpn,
struct lpfc_name *target_wwpn, uint64_t lun)
{
struct lpfc_device_data *lun_info;
unsigned long flags;
if (unlikely(!phba) || !vport_wwpn || !target_wwpn ||
!phba->cfg_EnableXLane)
return false;
spin_lock_irqsave(&phba->devicelock, flags);
/* Check to see if the lun is available. */
lun_info = __lpfc_get_device_data(phba,
&phba->luns, vport_wwpn,
target_wwpn, lun);
if (lun_info) {
lun_info->oas_enabled = false;
if (!lun_info->available)
lpfc_delete_device_data(phba, lun_info);
spin_unlock_irqrestore(&phba->devicelock, flags);
return true;
}
spin_unlock_irqrestore(&phba->devicelock, flags);
return false;
}
struct scsi_host_template lpfc_template = {
.module = THIS_MODULE,

18
drivers/scsi/lpfc/lpfc_scsi.h
View File

@ -41,6 +41,20 @@ struct lpfc_rport_data {
struct lpfc_nodelist *pnode; /* Pointer to the node structure. */
};
struct lpfc_device_id {
struct lpfc_name vport_wwpn;
struct lpfc_name target_wwpn;
uint64_t lun;
};
struct lpfc_device_data {
struct list_head listentry;
struct lpfc_rport_data *rport_data;
struct lpfc_device_id device_id;
bool oas_enabled;
bool available;
};
struct fcp_rsp {
uint32_t rspRsvd1; /* FC Word 0, byte 0:3 */
uint32_t rspRsvd2; /* FC Word 1, byte 0:3 */
@ -166,3 +180,7 @@ struct lpfc_scsi_buf {
#define LPFC_SCSI_DMA_EXT_SIZE 264
#define LPFC_BPL_SIZE 1024
#define MDAC_DIRECT_CMD 0x22
#define FIND_FIRST_OAS_LUN 0
#define NO_MORE_OAS_LUN -1
#define NOT_OAS_ENABLED_LUN NO_MORE_OAS_LUN

241
drivers/scsi/lpfc/lpfc_sli.c
View File

@ -4976,12 +4976,19 @@ lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
LPFC_QUEUE_REARM);
} while (++fcp_eqidx < phba->cfg_fcp_io_channel);
}
if (phba->cfg_EnableXLane)
lpfc_sli4_cq_release(phba->sli4_hba.oas_cq, LPFC_QUEUE_REARM);
if (phba->sli4_hba.hba_eq) {
for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_io_channel;
fcp_eqidx++)
lpfc_sli4_eq_release(phba->sli4_hba.hba_eq[fcp_eqidx],
LPFC_QUEUE_REARM);
}
if (phba->cfg_fof)
lpfc_sli4_eq_release(phba->sli4_hba.fof_eq, LPFC_QUEUE_REARM);
}
/**
@ -8256,6 +8263,14 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
bf_set(wqe_ebde_cnt, &wqe->fcp_iwrite.wqe_com, 0);
bf_set(wqe_pu, &wqe->fcp_iwrite.wqe_com, iocbq->iocb.ulpPU);
bf_set(wqe_dbde, &wqe->fcp_iwrite.wqe_com, 1);
if (iocbq->iocb_flag & LPFC_IO_OAS) {
bf_set(wqe_oas, &wqe->fcp_iwrite.wqe_com, 1);
if (phba->cfg_XLanePriority) {
bf_set(wqe_ccpe, &wqe->fcp_iwrite.wqe_com, 1);
bf_set(wqe_ccp, &wqe->fcp_iwrite.wqe_com,
(phba->cfg_XLanePriority << 1));
}
}
break;
case CMD_FCP_IREAD64_CR:
/* word3 iocb=iotag wqe=payload_offset_len */
@ -8277,6 +8292,14 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
bf_set(wqe_ebde_cnt, &wqe->fcp_iread.wqe_com, 0);
bf_set(wqe_pu, &wqe->fcp_iread.wqe_com, iocbq->iocb.ulpPU);
bf_set(wqe_dbde, &wqe->fcp_iread.wqe_com, 1);
if (iocbq->iocb_flag & LPFC_IO_OAS) {
bf_set(wqe_oas, &wqe->fcp_iread.wqe_com, 1);
if (phba->cfg_XLanePriority) {
bf_set(wqe_ccpe, &wqe->fcp_iread.wqe_com, 1);
bf_set(wqe_ccp, &wqe->fcp_iread.wqe_com,
(phba->cfg_XLanePriority << 1));
}
}
break;
case CMD_FCP_ICMND64_CR:
/* word3 iocb=iotag wqe=payload_offset_len */
@ -8297,6 +8320,14 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
bf_set(wqe_ebde_cnt, &wqe->fcp_icmd.wqe_com, 0);
bf_set(wqe_erp, &wqe->fcp_icmd.wqe_com,
iocbq->iocb.ulpFCP2Rcvy);
if (iocbq->iocb_flag & LPFC_IO_OAS) {
bf_set(wqe_oas, &wqe->fcp_icmd.wqe_com, 1);
if (phba->cfg_XLanePriority) {
bf_set(wqe_ccpe, &wqe->fcp_icmd.wqe_com, 1);
bf_set(wqe_ccp, &wqe->fcp_icmd.wqe_com,
(phba->cfg_XLanePriority << 1));
}
}
break;
case CMD_GEN_REQUEST64_CR:
/* For this command calculate the xmit length of the
@ -8529,6 +8560,7 @@ __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
{
struct lpfc_sglq *sglq;
union lpfc_wqe wqe;
struct lpfc_queue *wq;
struct lpfc_sli_ring *pring = &phba->sli.ring[ring_number];
if (piocb->sli4_xritag == NO_XRI) {
@ -8581,11 +8613,14 @@ __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
return IOCB_ERROR;
if ((piocb->iocb_flag & LPFC_IO_FCP) ||
(piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
if (unlikely(!phba->sli4_hba.fcp_wq))
return IOCB_ERROR;
if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
&wqe))
(piocb->iocb_flag & LPFC_USE_FCPWQIDX)) {
if (!phba->cfg_EnableXLane || (!(piocb->iocb_flag &
LPFC_IO_OAS))) {
wq = phba->sli4_hba.fcp_wq[piocb->fcp_wqidx];
} else {
wq = phba->sli4_hba.oas_wq;
}
if (lpfc_sli4_wq_put(wq, &wqe))
return IOCB_ERROR;
} else {
if (unlikely(!phba->sli4_hba.els_wq))
@ -8675,12 +8710,20 @@ lpfc_sli_issue_iocb(struct lpfc_hba *phba, uint32_t ring_number,
if (phba->sli_rev == LPFC_SLI_REV4) {
if (piocb->iocb_flag & LPFC_IO_FCP) {
if (unlikely(!phba->sli4_hba.fcp_wq))
return IOCB_ERROR;
idx = lpfc_sli4_scmd_to_wqidx_distr(phba);
piocb->fcp_wqidx = idx;
ring_number = MAX_SLI3_CONFIGURED_RINGS + idx;
if (!phba->cfg_EnableXLane || (!(piocb->iocb_flag &
LPFC_IO_OAS))) {
if (unlikely(!phba->sli4_hba.fcp_wq))
return IOCB_ERROR;
idx = lpfc_sli4_scmd_to_wqidx_distr(phba);
piocb->fcp_wqidx = idx;
ring_number = MAX_SLI3_CONFIGURED_RINGS + idx;
} else {
if (unlikely(!phba->sli4_hba.oas_wq))
return IOCB_ERROR;
idx = 0;
piocb->fcp_wqidx = 0;
ring_number = LPFC_FCP_OAS_RING;
}
pring = &phba->sli.ring[ring_number];
spin_lock_irqsave(&pring->ring_lock, iflags);
rc = __lpfc_sli_issue_iocb(phba, ring_number, piocb,
@ -12138,6 +12181,175 @@ lpfc_sli4_eq_flush(struct lpfc_hba *phba, struct lpfc_queue *eq)
lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
}
/**
* lpfc_sli4_fof_handle_eqe - Process a Flash Optimized Fabric event queue
* entry
* @phba: Pointer to HBA context object.
* @eqe: Pointer to fast-path event queue entry.
*
* This routine process a event queue entry from the Flash Optimized Fabric
* event queue. It will check the MajorCode and MinorCode to determine this
* is for a completion event on a completion queue, if not, an error shall be
* logged and just return. Otherwise, it will get to the corresponding
* completion queue and process all the entries on the completion queue, rearm
* the completion queue, and then return.
**/
static void
lpfc_sli4_fof_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
{
struct lpfc_queue *cq;
struct lpfc_cqe *cqe;
bool workposted = false;
uint16_t cqid;
int ecount = 0;
if (unlikely(bf_get_le32(lpfc_eqe_major_code, eqe) != 0)) {
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"9147 Not a valid completion "
"event: majorcode=x%x, minorcode=x%x\n",
bf_get_le32(lpfc_eqe_major_code, eqe),
bf_get_le32(lpfc_eqe_minor_code, eqe));
return;
}
/* Get the reference to the corresponding CQ */
cqid = bf_get_le32(lpfc_eqe_resource_id, eqe);
/* Next check for OAS */
cq = phba->sli4_hba.oas_cq;
if (unlikely(!cq)) {
if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"9148 OAS completion queue "
"does not exist\n");
return;
}
if (unlikely(cqid != cq->queue_id)) {
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"9149 Miss-matched fast-path compl "
"queue id: eqcqid=%d, fcpcqid=%d\n",
cqid, cq->queue_id);
return;
}
/* Process all the entries to the OAS CQ */
while ((cqe = lpfc_sli4_cq_get(cq))) {
workposted |= lpfc_sli4_fp_handle_wcqe(phba, cq, cqe);
if (!(++ecount % cq->entry_repost))
lpfc_sli4_cq_release(cq, LPFC_QUEUE_NOARM);
}
/* Track the max number of CQEs processed in 1 EQ */
if (ecount > cq->CQ_max_cqe)
cq->CQ_max_cqe = ecount;
/* Catch the no cq entry condition */
if (unlikely(ecount == 0))
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"9153 No entry from fast-path completion "
"queue fcpcqid=%d\n", cq->queue_id);
/* In any case, flash and re-arm the CQ */
lpfc_sli4_cq_release(cq, LPFC_QUEUE_REARM);
/* wake up worker thread if there are works to be done */
if (workposted)
lpfc_worker_wake_up(phba);
}
/**
* lpfc_sli4_fof_intr_handler - HBA interrupt handler to SLI-4 device
* @irq: Interrupt number.
* @dev_id: The device context pointer.
*
* This function is directly called from the PCI layer as an interrupt
* service routine when device with SLI-4 interface spec is enabled with
* MSI-X multi-message interrupt mode and there is a Flash Optimized Fabric
* IOCB ring event in the HBA. However, when the device is enabled with either
* MSI or Pin-IRQ interrupt mode, this function is called as part of the
* device-level interrupt handler. When the PCI slot is in error recovery
* or the HBA is undergoing initialization, the interrupt handler will not
* process the interrupt. The Flash Optimized Fabric ring event are handled in
* the intrrupt context. This function is called without any lock held.
* It gets the hbalock to access and update SLI data structures. Note that,
* the EQ to CQ are one-to-one map such that the EQ index is
* equal to that of CQ index.
*
* This function returns IRQ_HANDLED when interrupt is handled else it
* returns IRQ_NONE.
**/
irqreturn_t
lpfc_sli4_fof_intr_handler(int irq, void *dev_id)
{
struct lpfc_hba *phba;
struct lpfc_fcp_eq_hdl *fcp_eq_hdl;
struct lpfc_queue *eq;
struct lpfc_eqe *eqe;
unsigned long iflag;
int ecount = 0;
uint32_t eqidx;
/* Get the driver's phba structure from the dev_id */
fcp_eq_hdl = (struct lpfc_fcp_eq_hdl *)dev_id;
phba = fcp_eq_hdl->phba;
eqidx = fcp_eq_hdl->idx;
if (unlikely(!phba))
return IRQ_NONE;
/* Get to the EQ struct associated with this vector */
eq = phba->sli4_hba.fof_eq;
if (unlikely(!eq))
return IRQ_NONE;
/* Check device state for handling interrupt */
if (unlikely(lpfc_intr_state_check(phba))) {
eq->EQ_badstate++;
/* Check again for link_state with lock held */
spin_lock_irqsave(&phba->hbalock, iflag);
if (phba->link_state < LPFC_LINK_DOWN)
/* Flush, clear interrupt, and rearm the EQ */
lpfc_sli4_eq_flush(phba, eq);
spin_unlock_irqrestore(&phba->hbalock, iflag);
return IRQ_NONE;
}
/*
* Process all the event on FCP fast-path EQ
*/
while ((eqe = lpfc_sli4_eq_get(eq))) {
lpfc_sli4_fof_handle_eqe(phba, eqe);
if (!(++ecount % eq->entry_repost))
lpfc_sli4_eq_release(eq, LPFC_QUEUE_NOARM);
eq->EQ_processed++;
}
/* Track the max number of EQEs processed in 1 intr */
if (ecount > eq->EQ_max_eqe)
eq->EQ_max_eqe = ecount;
if (unlikely(ecount == 0)) {
eq->EQ_no_entry++;
if (phba->intr_type == MSIX)
/* MSI-X treated interrupt served as no EQ share INT */
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"9145 MSI-X interrupt with no EQE\n");
else {
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"9146 ISR interrupt with no EQE\n");
/* Non MSI-X treated on interrupt as EQ share INT */
return IRQ_NONE;
}
}
/* Always clear and re-arm the fast-path EQ */
lpfc_sli4_eq_release(eq, LPFC_QUEUE_REARM);
return IRQ_HANDLED;
}
/**
* lpfc_sli4_hba_intr_handler - HBA interrupt handler to SLI-4 device
* @irq: Interrupt number.
@ -12293,6 +12505,13 @@ lpfc_sli4_intr_handler(int irq, void *dev_id)
hba_handled |= true;
}
if (phba->cfg_fof) {
hba_irq_rc = lpfc_sli4_fof_intr_handler(irq,
&phba->sli4_hba.fcp_eq_hdl[0]);
if (hba_irq_rc == IRQ_HANDLED)
hba_handled |= true;
}
return (hba_handled == true) ? IRQ_HANDLED : IRQ_NONE;
} /* lpfc_sli4_intr_handler */

2
drivers/scsi/lpfc/lpfc_sli.h
View File

@ -78,6 +78,8 @@ struct lpfc_iocbq {
#define LPFC_FIP_ELS_ID_MASK 0xc000 /* ELS_ID range 0-3, non-shifted mask */
#define LPFC_FIP_ELS_ID_SHIFT 14
#define LPFC_IO_OAS 0x10000 /* OAS FCP IO */
uint32_t drvrTimeout; /* driver timeout in seconds */
uint32_t fcp_wqidx; /* index to FCP work queue */
struct lpfc_vport *vport;/* virtual port pointer */

20
drivers/scsi/lpfc/lpfc_sli4.h
View File

@ -39,6 +39,10 @@
#define LPFC_FCP_IO_CHAN_MIN 1
#define LPFC_FCP_IO_CHAN_MAX 16
/* Number of channels used for Flash Optimized Fabric (FOF) operations */
#define LPFC_FOF_IO_CHAN_NUM 1
/*
* Provide the default FCF Record attributes used by the driver
* when nonFIP mode is configured and there is no other default
@ -399,6 +403,7 @@ struct lpfc_pc_sli4_params {
uint32_t if_page_sz;
uint32_t rq_db_window;
uint32_t loopbk_scope;
uint32_t oas_supported;
uint32_t eq_pages_max;
uint32_t eqe_size;
uint32_t cq_pages_max;
@ -439,6 +444,8 @@ struct lpfc_sli4_lnk_info {
uint8_t lnk_no;
};
#define LPFC_SLI4_HANDLER_CNT (LPFC_FCP_IO_CHAN_MAX+ \
LPFC_FOF_IO_CHAN_NUM)
#define LPFC_SLI4_HANDLER_NAME_SZ 16
/* Used for IRQ vector to CPU mapping */
@ -507,7 +514,7 @@ struct lpfc_sli4_hba {
struct lpfc_register sli_intf;
struct lpfc_pc_sli4_params pc_sli4_params;
struct msix_entry *msix_entries;
uint8_t handler_name[LPFC_FCP_IO_CHAN_MAX][LPFC_SLI4_HANDLER_NAME_SZ];
uint8_t handler_name[LPFC_SLI4_HANDLER_CNT][LPFC_SLI4_HANDLER_NAME_SZ];
struct lpfc_fcp_eq_hdl *fcp_eq_hdl; /* FCP per-WQ handle */
/* Pointers to the constructed SLI4 queues */
@ -527,6 +534,17 @@ struct lpfc_sli4_hba {
uint32_t ulp0_mode; /* ULP0 protocol mode */
uint32_t ulp1_mode; /* ULP1 protocol mode */
struct lpfc_queue *fof_eq; /* Flash Optimized Fabric Event queue */
/* Optimized Access Storage specific queues/structures */
struct lpfc_queue *oas_cq; /* OAS completion queue */
struct lpfc_queue *oas_wq; /* OAS Work queue */
struct lpfc_sli_ring *oas_ring;
uint64_t oas_next_lun;
uint8_t oas_next_tgt_wwpn[8];
uint8_t oas_next_vpt_wwpn[8];
/* Setup information for various queue parameters */
int eq_esize;
int eq_ecount;