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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
2025-01-02 15:46:51 -05:00
committed by Martin K. Petersen
parent 2c77081969
commit 09c1e6ab4a
3 changed files with 676 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/scsi/fnic/fdls_disc.c
+658
View File
File diff suppressed because it is too large Load Diff
drivers/scsi/fnic/fnic.h
+1
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;
drivers/scsi/fnic/fnic_main.c
+17 -2
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