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Message-ID: <20241206210852.3251-8-kartilak@cisco.com>
Date: Fri, 6 Dec 2024 13:08:44 -0800
From: Karan Tilak Kumar <kartilak@...co.com>
To: sebaddel@...co.com
Cc: arulponn@...co.com,
djhawar@...co.com,
gcboffa@...co.com,
mkai2@...co.com,
satishkh@...co.com,
aeasi@...co.com,
jejb@...ux.ibm.com,
martin.petersen@...cle.com,
linux-scsi@...r.kernel.org,
linux-kernel@...r.kernel.org,
Karan Tilak Kumar <kartilak@...co.com>,
kernel test robot <lkp@...el.com>
Subject: [PATCH v6 07/15] scsi: fnic: Add and integrate support for FDMI
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@...el.com>
Closes:
https://lore.kernel.org/oe-kbuild-all/202406110734.p2v8dq9v-lkp
@intel.com/
Reviewed-by: Sesidhar Baddela <sebaddel@...co.com>
Co-developed-by: Gian Carlo Boffa <gcboffa@...co.com>
Signed-off-by: Gian Carlo Boffa <gcboffa@...co.com>
Co-developed-by: Arulprabhu Ponnusamy <arulponn@...co.com>
Signed-off-by: Arulprabhu Ponnusamy <arulponn@...co.com>
Co-developed-by: Arun Easi <aeasi@...co.com>
Signed-off-by: Arun Easi <aeasi@...co.com>
Co-developed-by: Karan Tilak Kumar <kartilak@...co.com>
Signed-off-by: Karan Tilak Kumar <kartilak@...co.com>
---
Changes between v5 and v6:
Incorporate review comments from Martin:
Remove GCC 13.3 warnings.
Incorporate review comments from Hannes:
Split patch into PCI changes and FDMI changes.
Allocate OXID from a pool.
Modify frame initialization.
Changes between v4 and v5:
Incorporate review comments from Martin:
Modify attribution appropriately.
Remove spurious newline at the end of fdls_disc.c.
Remove spurious newline at the end of fnic_main.c.
Changes between v2 and v3:
Incorporate review comments from Hannes:
Replace redundant definitions with standard definitions.
Changes between v1 and v2:
Incorporate review comments from Hannes from other patches:
Replace pr_info with dev_info.
Replace htonll() with get_unaligned_be64().
Replace definitions with standard definitions from fc_els.h.
Use standard definitions from scsi_transport_fc.h for
port speeds.
Refactor definitions in struct fnic to avoid cache holes.
Replace memcmp with not equal to operator.
Fix warning from kernel test robot:
Remove version.h
---
drivers/scsi/fnic/fdls_disc.c | 658 ++++++++++++++++++++++++++++++++++
drivers/scsi/fnic/fnic.h | 1 +
drivers/scsi/fnic/fnic_main.c | 19 +-
3 files changed, 676 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/fnic/fdls_disc.c b/drivers/scsi/fnic/fdls_disc.c
index b99b1387580a..02fd69e72830 100644
--- a/drivers/scsi/fnic/fdls_disc.c
+++ b/drivers/scsi/fnic/fdls_disc.c
@@ -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 @@ static void fdls_send_fabric_plogi(struct fnic_iport_s *iport)
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);
diff --git a/drivers/scsi/fnic/fnic.h b/drivers/scsi/fnic/fnic.h
index c2978c5c6e8f..c4f4b2fe192a 100644
--- a/drivers/scsi/fnic/fnic.h
+++ b/drivers/scsi/fnic/fnic.h
@@ -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;
diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c
index c1c10731906f..c75716856417 100644
--- a/drivers/scsi/fnic/fnic_main.c
+++ b/drivers/scsi/fnic/fnic_main.c
@@ -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
--
2.47.0
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