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scsi: fnic: Add and integrate support for FDMI

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Add support for Fabric-Device Management Interface (FDMI) by introducing
PCI device IDs for Cisco Hardware.

Introduce a module parameter to enable/disable FDMI support.

Integrate support for FDMI.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202406110734.p2v8dq9v-lkp@intel.com/
Reviewed-by: Sesidhar Baddela <sebaddel@cisco.com>
Co-developed-by: Gian Carlo Boffa <gcboffa@cisco.com>
Signed-off-by: Gian Carlo Boffa <gcboffa@cisco.com>
Co-developed-by: Arulprabhu Ponnusamy <arulponn@cisco.com>
Signed-off-by: Arulprabhu Ponnusamy <arulponn@cisco.com>
Co-developed-by: Arun Easi <aeasi@cisco.com>
Signed-off-by: Arun Easi <aeasi@cisco.com>
Co-developed-by: Karan Tilak Kumar <kartilak@cisco.com>
Signed-off-by: Karan Tilak Kumar <kartilak@cisco.com>
Link: https://lore.kernel.org/r/20241212020312.4786-8-kartilak@cisco.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Karan Tilak Kumar 2024-12-11 18:03:04 -08:00 • committed by Martin K. Petersen
parent 2c77081969
commit 09c1e6ab4a
3 changed files with 676 additions and 2 deletions
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658
drivers/scsi/fnic/fdls_disc.c
View file

@ -18,6 +18,52 @@
#define PORT_SPEED_BIT_14 14
#define PORT_SPEED_BIT_15 15
/* FNIC FDMI Register HBA Macros */
#define FNIC_FDMI_NUM_PORTS 1
#define FNIC_FDMI_NUM_HBA_ATTRS 9
#define FNIC_FDMI_TYPE_NODE_NAME 0X1
#define FNIC_FDMI_TYPE_MANUFACTURER 0X2
#define FNIC_FDMI_MANUFACTURER "Cisco Systems"
#define FNIC_FDMI_TYPE_SERIAL_NUMBER 0X3
#define FNIC_FDMI_TYPE_MODEL 0X4
#define FNIC_FDMI_TYPE_MODEL_DES 0X5
#define FNIC_FDMI_MODEL_DESCRIPTION "Cisco Virtual Interface Card"
#define FNIC_FDMI_TYPE_HARDWARE_VERSION 0X6
#define FNIC_FDMI_TYPE_DRIVER_VERSION 0X7
#define FNIC_FDMI_TYPE_ROM_VERSION 0X8
#define FNIC_FDMI_TYPE_FIRMWARE_VERSION 0X9
#define FNIC_FDMI_NN_LEN 8
#define FNIC_FDMI_MANU_LEN 20
#define FNIC_FDMI_SERIAL_LEN 16
#define FNIC_FDMI_MODEL_LEN 12
#define FNIC_FDMI_MODEL_DES_LEN 56
#define FNIC_FDMI_HW_VER_LEN 16
#define FNIC_FDMI_DR_VER_LEN 28
#define FNIC_FDMI_ROM_VER_LEN 8
#define FNIC_FDMI_FW_VER_LEN 16
/* FNIC FDMI Register PA Macros */
#define FNIC_FDMI_TYPE_FC4_TYPES 0X1
#define FNIC_FDMI_TYPE_SUPPORTED_SPEEDS 0X2
#define FNIC_FDMI_TYPE_CURRENT_SPEED 0X3
#define FNIC_FDMI_TYPE_MAX_FRAME_SIZE 0X4
#define FNIC_FDMI_TYPE_OS_NAME 0X5
#define FNIC_FDMI_TYPE_HOST_NAME 0X6
#define FNIC_FDMI_NUM_PORT_ATTRS 6
#define FNIC_FDMI_FC4_LEN 32
#define FNIC_FDMI_SUPP_SPEED_LEN 4
#define FNIC_FDMI_CUR_SPEED_LEN 4
#define FNIC_FDMI_MFS_LEN 4
#define FNIC_FDMI_MFS 0x800
#define FNIC_FDMI_OS_NAME_LEN 16
#define FNIC_FDMI_HN_LEN 24
#define FDLS_FDMI_PLOGI_PENDING 0x1
#define FDLS_FDMI_REG_HBA_PENDING 0x2
#define FDLS_FDMI_RPA_PENDING 0x4
#define FDLS_FDMI_ABORT_PENDING 0x8
#define FDLS_FDMI_MAX_RETRY 3
#define RETRIES_EXHAUSTED(iport) \
(iport->fabric.retry_counter == FABRIC_LOGO_MAX_RETRY)
@ -26,6 +72,8 @@
#define SCHEDULE_OXID_FREE_RETRY_TIME (300)
/* Private Functions */
static void fdls_fdmi_register_hba(struct fnic_iport_s *iport);
static void fdls_fdmi_register_pa(struct fnic_iport_s *iport);
static void fdls_send_rpn_id(struct fnic_iport_s *iport);
static void fdls_process_flogi_rsp(struct fnic_iport_s *iport,
struct fc_frame_header *fchdr,
@ -39,6 +87,7 @@ static void fdls_target_restart_nexus(struct fnic_tport_s *tport);
static void fdls_start_tport_timer(struct fnic_iport_s *iport,
struct fnic_tport_s *tport, int timeout);
static void fdls_tport_timer_callback(struct timer_list *t);
static void fdls_send_fdmi_plogi(struct fnic_iport_s *iport);
static void fdls_start_fabric_timer(struct fnic_iport_s *iport,
int timeout);
static void fdls_init_plogi_frame(uint8_t *frame, struct fnic_iport_s *iport);
@ -721,6 +770,52 @@ static void fdls_send_fabric_abts(struct fnic_iport_s *iport)
iport->fabric.timer_pending = 1;
}
static void fdls_send_fdmi_abts(struct fnic_iport_s *iport)
{
uint8_t *frame;
uint8_t d_id[3];
struct fnic *fnic = iport->fnic;
struct fc_frame_header *pfabric_abts;
unsigned long fdmi_tov;
uint16_t oxid;
uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
sizeof(struct fc_frame_header);
frame = fdls_alloc_frame(iport);
if (frame == NULL) {
FNIC_FCS_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
"Failed to allocate frame to send FDMI ABTS");
return;
}
pfabric_abts = (struct fc_frame_header *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
fdls_init_fabric_abts_frame(frame, iport);
hton24(d_id, FC_FID_MGMT_SERV);
FNIC_STD_SET_D_ID(*pfabric_abts, d_id);
if (iport->fabric.fdmi_pending & FDLS_FDMI_PLOGI_PENDING) {
oxid = iport->active_oxid_fdmi_plogi;
FNIC_STD_SET_OX_ID(*pfabric_abts, oxid);
fnic_send_fcoe_frame(iport, frame, frame_size);
} else {
if (iport->fabric.fdmi_pending & FDLS_FDMI_REG_HBA_PENDING) {
oxid = iport->active_oxid_fdmi_rhba;
FNIC_STD_SET_OX_ID(*pfabric_abts, oxid);
fnic_send_fcoe_frame(iport, frame, frame_size);
}
if (iport->fabric.fdmi_pending & FDLS_FDMI_RPA_PENDING) {
oxid = iport->active_oxid_fdmi_rpa;
FNIC_STD_SET_OX_ID(*pfabric_abts, oxid);
fnic_send_fcoe_frame(iport, frame, frame_size);
}
}
fdmi_tov = jiffies + msecs_to_jiffies(2 * iport->e_d_tov);
mod_timer(&iport->fabric.fdmi_timer, round_jiffies(fdmi_tov));
iport->fabric.fdmi_pending |= FDLS_FDMI_ABORT_PENDING;
}
static void fdls_send_fabric_flogi(struct fnic_iport_s *iport)
{
uint8_t *frame;
@ -823,6 +918,54 @@ err_out:
fdls_start_fabric_timer(iport, 2 * iport->e_d_tov);
}
static void fdls_send_fdmi_plogi(struct fnic_iport_s *iport)
{
uint8_t *frame;
struct fc_std_flogi *pplogi;
struct fnic *fnic = iport->fnic;
uint16_t oxid;
uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET +
sizeof(struct fc_std_flogi);
uint8_t d_id[3];
u64 fdmi_tov;
frame = fdls_alloc_frame(iport);
if (frame == NULL) {
FNIC_FCS_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
"Failed to allocate frame to send FDMI PLOGI");
goto err_out;
}
pplogi = (struct fc_std_flogi *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
fdls_init_plogi_frame(frame, iport);
oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_FDMI_PLOGI,
&iport->active_oxid_fdmi_plogi);
if (oxid == FNIC_UNASSIGNED_OXID) {
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"0x%x: Failed to allocate OXID to send FDMI PLOGI",
iport->fcid);
mempool_free(frame, fnic->frame_pool);
goto err_out;
}
FNIC_STD_SET_OX_ID(pplogi->fchdr, oxid);
hton24(d_id, FC_FID_MGMT_SERV);
FNIC_STD_SET_D_ID(pplogi->fchdr, d_id);
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"0x%x: FDLS send FDMI PLOGI with oxid: 0x%x",
iport->fcid, oxid);
fnic_send_fcoe_frame(iport, frame, frame_size);
err_out:
fdmi_tov = jiffies + msecs_to_jiffies(2 * iport->e_d_tov);
mod_timer(&iport->fabric.fdmi_timer, round_jiffies(fdmi_tov));
iport->fabric.fdmi_pending = FDLS_FDMI_PLOGI_PENDING;
}
static void fdls_send_rpn_id(struct fnic_iport_s *iport)
{
uint8_t *frame;
@ -1644,6 +1787,300 @@ struct fnic_tport_s *fnic_find_tport_by_wwpn(struct fnic_iport_s *iport,
return NULL;
}
static void
fnic_fdmi_attr_set(void *attr_start, u16 type, u16 len,
void *data, u32 *off)
{
u16 size = len + FC_FDMI_ATTR_ENTRY_HEADER_LEN;
struct fc_fdmi_attr_entry *fdmi_attr = (struct fc_fdmi_attr_entry *)
((u8 *)attr_start + *off);
put_unaligned_be16(type, &fdmi_attr->type);
put_unaligned_be16(size, &fdmi_attr->len);
memcpy(fdmi_attr->value, data, len);
*off += size;
}
static void fdls_fdmi_register_hba(struct fnic_iport_s *iport)
{
uint8_t *frame;
struct fc_std_fdmi_rhba *prhba;
struct fc_fdmi_attr_entry *fdmi_attr;
uint8_t fcid[3];
int err;
struct fnic *fnic = iport->fnic;
struct vnic_devcmd_fw_info *fw_info = NULL;
uint16_t oxid;
u32 attr_off_bytes, len;
u8 data[64];
uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET;
frame = fdls_alloc_frame(iport);
if (frame == NULL) {
FNIC_FCS_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
"Failed to allocate frame to send FDMI RHBA");
return;
}
prhba = (struct fc_std_fdmi_rhba *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
*prhba = (struct fc_std_fdmi_rhba) {
.fchdr = {
.fh_r_ctl = FC_RCTL_DD_UNSOL_CTL,
.fh_d_id = {0xFF, 0XFF, 0XFA},
.fh_type = FC_TYPE_CT,
.fh_f_ctl = {FNIC_ELS_REQ_FCTL, 0, 0},
.fh_rx_id = cpu_to_be16(FNIC_UNASSIGNED_RXID)
},
.fc_std_ct_hdr = {
.ct_rev = FC_CT_REV, .ct_fs_type = FC_FST_MGMT,
.ct_fs_subtype = FC_FDMI_SUBTYPE,
.ct_cmd = cpu_to_be16(FC_FDMI_RHBA)
},
};
hton24(fcid, iport->fcid);
FNIC_STD_SET_S_ID(prhba->fchdr, fcid);
oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_FDMI_RHBA,
&iport->active_oxid_fdmi_rhba);
if (oxid == FNIC_UNASSIGNED_OXID) {
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"0x%x: Failed to allocate OXID to send FDMI RHBA",
iport->fcid);
mempool_free(frame, fnic->frame_pool);
return;
}
FNIC_STD_SET_OX_ID(prhba->fchdr, oxid);
put_unaligned_be64(iport->wwpn, &prhba->rhba.hbaid.id);
put_unaligned_be32(FNIC_FDMI_NUM_PORTS, &prhba->rhba.port.numport);
put_unaligned_be64(iport->wwpn, &prhba->rhba.port.port[0].portname);
put_unaligned_be32(FNIC_FDMI_NUM_HBA_ATTRS,
&prhba->rhba.hba_attrs.numattrs);
fdmi_attr = prhba->rhba.hba_attrs.attr;
attr_off_bytes = 0;
put_unaligned_be64(iport->wwnn, data);
fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_NODE_NAME,
FNIC_FDMI_NN_LEN, data, &attr_off_bytes);
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"NN set, off=%d", attr_off_bytes);
strscpy_pad(data, FNIC_FDMI_MANUFACTURER, FNIC_FDMI_MANU_LEN);
fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_MANUFACTURER,
FNIC_FDMI_MANU_LEN, data, &attr_off_bytes);
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"MFG set <%s>, off=%d", data, attr_off_bytes);
err = vnic_dev_fw_info(fnic->vdev, &fw_info);
if (!err) {
strscpy_pad(data, fw_info->hw_serial_number,
FNIC_FDMI_SERIAL_LEN);
fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_SERIAL_NUMBER,
FNIC_FDMI_SERIAL_LEN, data, &attr_off_bytes);
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"SERIAL set <%s>, off=%d", data, attr_off_bytes);
}
if (fnic->subsys_desc_len >= FNIC_FDMI_MODEL_LEN)
fnic->subsys_desc_len = FNIC_FDMI_MODEL_LEN - 1;
strscpy_pad(data, fnic->subsys_desc, FNIC_FDMI_MODEL_LEN);
data[FNIC_FDMI_MODEL_LEN - 1] = 0;
fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_MODEL, FNIC_FDMI_MODEL_LEN,
data, &attr_off_bytes);
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"MODEL set <%s>, off=%d", data, attr_off_bytes);
strscpy_pad(data, FNIC_FDMI_MODEL_DESCRIPTION, FNIC_FDMI_MODEL_DES_LEN);
fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_MODEL_DES,
FNIC_FDMI_MODEL_DES_LEN, data, &attr_off_bytes);
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"MODEL_DESC set <%s>, off=%d", data, attr_off_bytes);
if (!err) {
strscpy_pad(data, fw_info->hw_version, FNIC_FDMI_HW_VER_LEN);
fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_HARDWARE_VERSION,
FNIC_FDMI_HW_VER_LEN, data, &attr_off_bytes);
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"HW_VER set <%s>, off=%d", data, attr_off_bytes);
}
strscpy_pad(data, DRV_VERSION, FNIC_FDMI_DR_VER_LEN);
fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_DRIVER_VERSION,
FNIC_FDMI_DR_VER_LEN, data, &attr_off_bytes);
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"DRV_VER set <%s>, off=%d", data, attr_off_bytes);
strscpy_pad(data, "N/A", FNIC_FDMI_ROM_VER_LEN);
fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_ROM_VERSION,
FNIC_FDMI_ROM_VER_LEN, data, &attr_off_bytes);
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"ROM_VER set <%s>, off=%d", data, attr_off_bytes);
if (!err) {
strscpy_pad(data, fw_info->fw_version, FNIC_FDMI_FW_VER_LEN);
fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_FIRMWARE_VERSION,
FNIC_FDMI_FW_VER_LEN, data, &attr_off_bytes);
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"FW_VER set <%s>, off=%d", data, attr_off_bytes);
}
len = sizeof(struct fc_std_fdmi_rhba) + attr_off_bytes;
frame_size += len;
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"0x%x: FDLS send FDMI RHBA with oxid: 0x%x fs: %d", iport->fcid,
oxid, frame_size);
fnic_send_fcoe_frame(iport, frame, frame_size);
iport->fabric.fdmi_pending |= FDLS_FDMI_REG_HBA_PENDING;
}
static void fdls_fdmi_register_pa(struct fnic_iport_s *iport)
{
uint8_t *frame;
struct fc_std_fdmi_rpa *prpa;
struct fc_fdmi_attr_entry *fdmi_attr;
uint8_t fcid[3];
struct fnic *fnic = iport->fnic;
u32 port_speed_bm;
u32 port_speed = vnic_dev_port_speed(fnic->vdev);
uint16_t oxid;
u32 attr_off_bytes, len;
u8 tmp_data[16], data[64];
uint16_t frame_size = FNIC_ETH_FCOE_HDRS_OFFSET;
frame = fdls_alloc_frame(iport);
if (frame == NULL) {
FNIC_FCS_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
"Failed to allocate frame to send FDMI RPA");
return;
}
prpa = (struct fc_std_fdmi_rpa *) (frame + FNIC_ETH_FCOE_HDRS_OFFSET);
*prpa = (struct fc_std_fdmi_rpa) {
.fchdr = {
.fh_r_ctl = FC_RCTL_DD_UNSOL_CTL,
.fh_d_id = {0xFF, 0xFF, 0xFA},
.fh_type = FC_TYPE_CT,
.fh_f_ctl = {FNIC_ELS_REQ_FCTL, 0, 0},
.fh_rx_id = cpu_to_be16(FNIC_UNASSIGNED_RXID)
},
.fc_std_ct_hdr = {
.ct_rev = FC_CT_REV, .ct_fs_type = FC_FST_MGMT,
.ct_fs_subtype = FC_FDMI_SUBTYPE,
.ct_cmd = cpu_to_be16(FC_FDMI_RPA)
},
};
hton24(fcid, iport->fcid);
FNIC_STD_SET_S_ID(prpa->fchdr, fcid);
oxid = fdls_alloc_oxid(iport, FNIC_FRAME_TYPE_FDMI_RPA,
&iport->active_oxid_fdmi_rpa);
if (oxid == FNIC_UNASSIGNED_OXID) {
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"0x%x: Failed to allocate OXID to send FDMI RPA",
iport->fcid);
mempool_free(frame, fnic->frame_pool);
return;
}
FNIC_STD_SET_OX_ID(prpa->fchdr, oxid);
put_unaligned_be64(iport->wwpn, &prpa->rpa.port.portname);
put_unaligned_be32(FNIC_FDMI_NUM_PORT_ATTRS,
&prpa->rpa.hba_attrs.numattrs);
/* MDS does not support GIGE speed.
* Bit shift standard definitions from scsi_transport_fc.h to
* match FC spec.
*/
switch (port_speed) {
case DCEM_PORTSPEED_10G:
case DCEM_PORTSPEED_20G:
/* There is no bit for 20G */
port_speed_bm = FC_PORTSPEED_10GBIT << PORT_SPEED_BIT_14;
break;
case DCEM_PORTSPEED_25G:
port_speed_bm = FC_PORTSPEED_25GBIT << PORT_SPEED_BIT_8;
break;
case DCEM_PORTSPEED_40G:
case DCEM_PORTSPEED_4x10G:
port_speed_bm = FC_PORTSPEED_40GBIT << PORT_SPEED_BIT_9;
break;
case DCEM_PORTSPEED_100G:
port_speed_bm = FC_PORTSPEED_100GBIT << PORT_SPEED_BIT_8;
break;
default:
port_speed_bm = FC_PORTSPEED_1GBIT << PORT_SPEED_BIT_15;
break;
}
attr_off_bytes = 0;
fdmi_attr = prpa->rpa.hba_attrs.attr;
put_unaligned_be64(iport->wwnn, data);
memset(data, 0, FNIC_FDMI_FC4_LEN);
data[2] = 1;
fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_FC4_TYPES,
FNIC_FDMI_FC4_LEN, data, &attr_off_bytes);
put_unaligned_be32(port_speed_bm, data);
fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_SUPPORTED_SPEEDS,
FNIC_FDMI_SUPP_SPEED_LEN, data, &attr_off_bytes);
put_unaligned_be32(port_speed_bm, data);
fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_CURRENT_SPEED,
FNIC_FDMI_CUR_SPEED_LEN, data, &attr_off_bytes);
put_unaligned_be32(FNIC_FDMI_MFS, data);
fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_MAX_FRAME_SIZE,
FNIC_FDMI_MFS_LEN, data, &attr_off_bytes);
snprintf(tmp_data, FNIC_FDMI_OS_NAME_LEN - 1, "host%d",
fnic->lport->host->host_no);
strscpy_pad(data, tmp_data, FNIC_FDMI_OS_NAME_LEN);
data[FNIC_FDMI_OS_NAME_LEN - 1] = 0;
fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_OS_NAME,
FNIC_FDMI_OS_NAME_LEN, data, &attr_off_bytes);
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"OS name set <%s>, off=%d", data, attr_off_bytes);
sprintf(fc_host_system_hostname(fnic->lport->host), "%s", utsname()->nodename);
strscpy_pad(data, fc_host_system_hostname(fnic->lport->host),
FNIC_FDMI_HN_LEN);
data[FNIC_FDMI_HN_LEN - 1] = 0;
fnic_fdmi_attr_set(fdmi_attr, FNIC_FDMI_TYPE_HOST_NAME,
FNIC_FDMI_HN_LEN, data, &attr_off_bytes);
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"Host name set <%s>, off=%d", data, attr_off_bytes);
len = sizeof(struct fc_std_fdmi_rpa) + attr_off_bytes;
frame_size += len;
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"0x%x: FDLS send FDMI RPA with oxid: 0x%x fs: %d", iport->fcid,
oxid, frame_size);
fnic_send_fcoe_frame(iport, frame, frame_size);
iport->fabric.fdmi_pending |= FDLS_FDMI_RPA_PENDING;
}
void fdls_fabric_timer_callback(struct timer_list *t)
{
struct fnic_fdls_fabric_s *fabric = from_timer(fabric, t, retry_timer);
@ -1817,6 +2254,64 @@ void fdls_fabric_timer_callback(struct timer_list *t)
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
}
void fdls_fdmi_timer_callback(struct timer_list *t)
{
struct fnic_fdls_fabric_s *fabric = from_timer(fabric, t, fdmi_timer);
struct fnic_iport_s *iport =
container_of(fabric, struct fnic_iport_s, fabric);
struct fnic *fnic = iport->fnic;
unsigned long flags;
spin_lock_irqsave(&fnic->fnic_lock, flags);
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"fdmi timer callback : 0x%x\n", iport->fabric.fdmi_pending);
if (!iport->fabric.fdmi_pending) {
/* timer expired after fdmi responses received. */
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
return;
}
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"fdmi timer callback : 0x%x\n", iport->fabric.fdmi_pending);
/* if not abort pending, send an abort */
if (!(iport->fabric.fdmi_pending & FDLS_FDMI_ABORT_PENDING)) {
fdls_send_fdmi_abts(iport);
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
return;
}
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"fdmi timer callback : 0x%x\n", iport->fabric.fdmi_pending);
/* ABTS pending for an active fdmi request that is pending.
* That means FDMI ABTS timed out
* Schedule to free the OXID after 2*r_a_tov and proceed
*/
if (iport->fabric.fdmi_pending & FDLS_FDMI_PLOGI_PENDING) {
fdls_schedule_oxid_free(iport, &iport->active_oxid_fdmi_plogi);
} else {
if (iport->fabric.fdmi_pending & FDLS_FDMI_REG_HBA_PENDING)
fdls_schedule_oxid_free(iport, &iport->active_oxid_fdmi_rhba);
if (iport->fabric.fdmi_pending & FDLS_FDMI_RPA_PENDING)
fdls_schedule_oxid_free(iport, &iport->active_oxid_fdmi_rpa);
}
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"fdmi timer callback : 0x%x\n", iport->fabric.fdmi_pending);
iport->fabric.fdmi_pending = 0;
/* If max retries not exhaused, start over from fdmi plogi */
if (iport->fabric.fdmi_retry < FDLS_FDMI_MAX_RETRY) {
iport->fabric.fdmi_retry++;
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"retry fdmi timer %d", iport->fabric.fdmi_retry);
fdls_send_fdmi_plogi(iport);
}
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"fdmi timer callback : 0x%x\n", iport->fabric.fdmi_pending);
spin_unlock_irqrestore(&fnic->fnic_lock, flags);
}
static void fdls_send_delete_tport_msg(struct fnic_tport_s *tport)
{
struct fnic_iport_s *iport = (struct fnic_iport_s *) tport->iport;
@ -1956,6 +2451,15 @@ static void fnic_fdls_start_plogi(struct fnic_iport_s *iport)
fdls_send_fabric_plogi(iport);
fdls_set_state((&iport->fabric), FDLS_STATE_FABRIC_PLOGI);
iport->fabric.flags &= ~FNIC_FDLS_FABRIC_ABORT_ISSUED;
if ((fnic_fdmi_support == 1) && (!(iport->flags & FNIC_FDMI_ACTIVE))) {
/* we can do FDMI at the same time */
iport->fabric.fdmi_retry = 0;
timer_setup(&iport->fabric.fdmi_timer, fdls_fdmi_timer_callback,
0);
fdls_send_fdmi_plogi(iport);
iport->flags |= FNIC_FDMI_ACTIVE;
}
}
static void
fdls_process_tgt_adisc_rsp(struct fnic_iport_s *iport,
@ -3090,6 +3594,144 @@ fdls_process_fabric_plogi_rsp(struct fnic_iport_s *iport,
}
}
static void fdls_process_fdmi_plogi_rsp(struct fnic_iport_s *iport,
struct fc_frame_header *fchdr)
{
struct fc_std_flogi *plogi_rsp = (struct fc_std_flogi *)fchdr;
struct fc_std_els_rjt_rsp *els_rjt = (struct fc_std_els_rjt_rsp *)fchdr;
struct fnic_fdls_fabric_s *fdls = &iport->fabric;
struct fnic *fnic = iport->fnic;
u64 fdmi_tov;
uint16_t oxid = FNIC_STD_GET_OX_ID(fchdr);
if (iport->active_oxid_fdmi_plogi != oxid) {
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"Incorrect OXID in response. state: %d, oxid recvd: 0x%x, active oxid: 0x%x\n",
fdls_get_state(fdls), oxid, iport->active_oxid_fdmi_plogi);
return;
}
iport->fabric.fdmi_pending &= ~FDLS_FDMI_PLOGI_PENDING;
fdls_free_oxid(iport, oxid, &iport->active_oxid_fdmi_plogi);
if (ntoh24(fchdr->fh_s_id) == FC_FID_MGMT_SERV) {
del_timer_sync(&iport->fabric.fdmi_timer);
iport->fabric.fdmi_pending = 0;
switch (plogi_rsp->els.fl_cmd) {
case ELS_LS_ACC:
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"FDLS process fdmi PLOGI response status: ELS_LS_ACC\n");
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"Sending fdmi registration for port 0x%x\n",
iport->fcid);
fdls_fdmi_register_hba(iport);
fdls_fdmi_register_pa(iport);
fdmi_tov = jiffies + msecs_to_jiffies(5000);
mod_timer(&iport->fabric.fdmi_timer,
round_jiffies(fdmi_tov));
break;
case ELS_LS_RJT:
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"Fabric FDMI PLOGI returned ELS_LS_RJT reason: 0x%x",
els_rjt->rej.er_reason);
if (((els_rjt->rej.er_reason == ELS_RJT_BUSY)
|| (els_rjt->rej.er_reason == ELS_RJT_UNAB))
&& (iport->fabric.fdmi_retry < 7)) {
iport->fabric.fdmi_retry++;
fdls_send_fdmi_plogi(iport);
}
break;
default:
break;
}
}
}
static void fdls_process_fdmi_reg_ack(struct fnic_iport_s *iport,
struct fc_frame_header *fchdr,
int rsp_type)
{
struct fnic *fnic = iport->fnic;
uint16_t oxid;
if (!iport->fabric.fdmi_pending) {
FNIC_FCS_DBG(KERN_ERR, fnic->lport->host, fnic->fnic_num,
"Received FDMI ack while not waiting: 0x%x\n",
FNIC_STD_GET_OX_ID(fchdr));
return;
}
oxid = FNIC_STD_GET_OX_ID(fchdr);
if ((iport->active_oxid_fdmi_rhba != oxid) &&
(iport->active_oxid_fdmi_rpa != oxid)) {
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"Incorrect OXID in response. oxid recvd: 0x%x, active oxids(rhba,rpa): 0x%x, 0x%x\n",
oxid, iport->active_oxid_fdmi_rhba, iport->active_oxid_fdmi_rpa);
return;
}
if (FNIC_FRAME_TYPE(oxid) == FNIC_FRAME_TYPE_FDMI_RHBA) {
iport->fabric.fdmi_pending &= ~FDLS_FDMI_REG_HBA_PENDING;
fdls_free_oxid(iport, oxid, &iport->active_oxid_fdmi_rhba);
} else {
iport->fabric.fdmi_pending &= ~FDLS_FDMI_RPA_PENDING;
fdls_free_oxid(iport, oxid, &iport->active_oxid_fdmi_rpa);
}
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"iport fcid: 0x%x: Received FDMI registration ack\n",
iport->fcid);
if (!iport->fabric.fdmi_pending) {
del_timer_sync(&iport->fabric.fdmi_timer);
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"iport fcid: 0x%x: Canceling FDMI timer\n",
iport->fcid);
}
}
static void fdls_process_fdmi_abts_rsp(struct fnic_iport_s *iport,
struct fc_frame_header *fchdr)
{
uint32_t s_id;
struct fnic *fnic = iport->fnic;
uint16_t oxid;
s_id = ntoh24(FNIC_STD_GET_S_ID(fchdr));
if (!(s_id != FC_FID_MGMT_SERV)) {
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"Received abts rsp with invalid SID: 0x%x. Dropping frame",
s_id);
return;
}
oxid = FNIC_STD_GET_OX_ID(fchdr);
switch (FNIC_FRAME_TYPE(oxid)) {
case FNIC_FRAME_TYPE_FDMI_PLOGI:
fdls_free_oxid(iport, oxid, &iport->active_oxid_fdmi_plogi);
break;
case FNIC_FRAME_TYPE_FDMI_RHBA:
fdls_free_oxid(iport, oxid, &iport->active_oxid_fdmi_rhba);
break;
case FNIC_FRAME_TYPE_FDMI_RPA:
fdls_free_oxid(iport, oxid, &iport->active_oxid_fdmi_rpa);
break;
default:
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"Received abts rsp with invalid oxid: 0x%x. Dropping frame",
oxid);
break;
}
del_timer_sync(&iport->fabric.fdmi_timer);
iport->fabric.fdmi_pending &= ~FDLS_FDMI_ABORT_PENDING;
fdls_send_fdmi_plogi(iport);
}
static void
fdls_process_fabric_abts_rsp(struct fnic_iport_s *iport,
struct fc_frame_header *fchdr)
@ -4094,6 +4736,12 @@ fnic_fdls_validate_and_get_frame_type(struct fnic_iport_s *iport,
case FNIC_FRAME_TYPE_FABRIC_LOGO:
return FNIC_FABRIC_LOGO_RSP;
case FNIC_FRAME_TYPE_FDMI_PLOGI:
return FNIC_FDMI_PLOGI_RSP;
case FNIC_FRAME_TYPE_FDMI_RHBA:
return FNIC_FDMI_REG_HBA_RSP;
case FNIC_FRAME_TYPE_FDMI_RPA:
return FNIC_FDMI_RPA_RSP;
case FNIC_FRAME_TYPE_TGT_PLOGI:
return FNIC_TPORT_PLOGI_RSP;
case FNIC_FRAME_TYPE_TGT_PRLI:
@ -4148,6 +4796,9 @@ void fnic_fdls_recv_frame(struct fnic_iport_s *iport, void *rx_frame,
case FNIC_FABRIC_PLOGI_RSP:
fdls_process_fabric_plogi_rsp(iport, fchdr);
break;
case FNIC_FDMI_PLOGI_RSP:
fdls_process_fdmi_plogi_rsp(iport, fchdr);
break;
case FNIC_FABRIC_RPN_RSP:
fdls_process_rpn_id_rsp(iport, fchdr);
break;
@ -4187,6 +4838,9 @@ void fnic_fdls_recv_frame(struct fnic_iport_s *iport, void *rx_frame,
case FNIC_FABRIC_BLS_ABTS_RSP:
fdls_process_fabric_abts_rsp(iport, fchdr);
break;
case FNIC_FDMI_BLS_ABTS_RSP:
fdls_process_fdmi_abts_rsp(iport, fchdr);
break;
case FNIC_BLS_ABTS_REQ:
fdls_process_abts_req(iport, fchdr);
break;
@ -4212,6 +4866,10 @@ void fnic_fdls_recv_frame(struct fnic_iport_s *iport, void *rx_frame,
case FNIC_ELS_RLS:
fdls_process_rls_req(iport, fchdr);
break;
case FNIC_FDMI_REG_HBA_RSP:
case FNIC_FDMI_RPA_RSP:
fdls_process_fdmi_reg_ack(iport, fchdr, frame_type);
break;
default:
FNIC_FCS_DBG(KERN_INFO, fnic->lport->host, fnic->fnic_num,
"s_id: 0x%x d_did: 0x%x", s_id, d_id);

1
drivers/scsi/fnic/fnic.h
View file

@ -205,6 +205,7 @@ static inline u64 fnic_flags_and_state(struct scsi_cmnd *cmd)
#define fnic_clear_state_flags(fnicp, st_flags) \
__fnic_set_state_flags(fnicp, st_flags, 1)
extern unsigned int fnic_fdmi_support;
extern unsigned int fnic_log_level;
extern unsigned int io_completions;
extern struct workqueue_struct *fnic_event_queue;

19
drivers/scsi/fnic/fnic_main.c
View file

@ -64,6 +64,9 @@ unsigned int fnic_log_level;
module_param(fnic_log_level, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(fnic_log_level, "bit mask of fnic logging levels");
unsigned int fnic_fdmi_support = 1;
module_param(fnic_fdmi_support, int, 0644);
MODULE_PARM_DESC(fnic_fdmi_support, "FDMI support");
unsigned int io_completions = FNIC_DFLT_IO_COMPLETIONS;
module_param(io_completions, int, S_IRUGO|S_IWUSR);
@ -612,6 +615,7 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
unsigned long flags;
int hwq;
char *desc, *subsys_desc;
int len;
/*
* Allocate SCSI Host and set up association between host,
@ -646,9 +650,17 @@ static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
fnic_stats_debugfs_init(fnic);
/* Find model name from PCIe subsys ID */
if (fnic_get_desc_by_devid(pdev, &desc, &subsys_desc) == 0)
if (fnic_get_desc_by_devid(pdev, &desc, &subsys_desc) == 0) {
dev_info(&fnic->pdev->dev, "Model: %s\n", subsys_desc);
else {
/* Update FDMI model */
fnic->subsys_desc_len = strlen(subsys_desc);
len = ARRAY_SIZE(fnic->subsys_desc);
if (fnic->subsys_desc_len > len)
fnic->subsys_desc_len = len;
memcpy(fnic->subsys_desc, subsys_desc, fnic->subsys_desc_len);
dev_info(&fnic->pdev->dev, "FDMI Model: %s\n", fnic->subsys_desc);
} else {
fnic->subsys_desc_len = 0;
dev_info(&fnic->pdev->dev, "Model: %s subsys_id: 0x%04x\n", "Unknown",
pdev->subsystem_device);
@ -1051,6 +1063,9 @@ static void fnic_remove(struct pci_dev *pdev)
fnic_fcoe_evlist_free(fnic);
}
if ((fnic_fdmi_support == 1) && (fnic->iport.fabric.fdmi_pending > 0))
del_timer_sync(&fnic->iport.fabric.fdmi_timer);
/*
* Log off the fabric. This stops all remote ports, dns port,
* logs off the fabric. This flushes all rport, disc, lport work