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authorJaved Hasan <jhasan@marvell.com>2021-06-03 05:16:22 -0700
committerMartin K. Petersen <martin.petersen@oracle.com>2021-06-10 00:03:56 -0400
commit974db67a518b4f2ca690c29923abbbd9d5f1abfd (patch)
tree085cb6c4b2b438355f9c4f92e71a4a39186a3552 /drivers/scsi/libfc
parent82897fefab6811d006531cbc3a6aa03d23b8f8e3 (diff)
scsi: libfc: FDMI enhancements
Add all the attributes for FDMI. Fall back mechanism is added in between FDMI V2 and FDMI V1 attributes. In case FDMI get fails for V2 attributes we fall back to V1 attributes. Link: https://lore.kernel.org/r/20210603121623.10084-5-jhasan@marvell.com Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com> Signed-off-by: Javed Hasan <jhasan@marvell.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/libfc')
-rw-r--r--drivers/scsi/libfc/fc_lport.c64
1 files changed, 58 insertions, 6 deletions
diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index f7595480b634..19cd4a95d354 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -1188,7 +1188,7 @@ static void fc_lport_ms_resp(struct fc_seq *sp, struct fc_frame *fp,
struct fc_lport *lport = lp_arg;
struct fc_frame_header *fh;
struct fc_ct_hdr *ct;
-
+ struct fc_host_attrs *fc_host = shost_to_fc_host(lport->host);
FC_LPORT_DBG(lport, "Received a ms %s\n", fc_els_resp_type(fp));
if (fp == ERR_PTR(-FC_EX_CLOSED))
@@ -1222,7 +1222,13 @@ static void fc_lport_ms_resp(struct fc_seq *sp, struct fc_frame *fp,
switch (lport->state) {
case LPORT_ST_RHBA:
- if (ntohs(ct->ct_cmd) == FC_FS_ACC)
+ if ((ntohs(ct->ct_cmd) == FC_FS_RJT) && fc_host->fdmi_version == FDMI_V2) {
+ FC_LPORT_DBG(lport, "Error for FDMI-V2, fall back to FDMI-V1\n");
+ fc_host->fdmi_version = FDMI_V1;
+
+ fc_lport_enter_ms(lport, LPORT_ST_RHBA);
+
+ } else if (ntohs(ct->ct_cmd) == FC_FS_ACC)
fc_lport_enter_ms(lport, LPORT_ST_RPA);
else /* Error Skip RPA */
fc_lport_enter_scr(lport);
@@ -1436,7 +1442,7 @@ static void fc_lport_enter_ms(struct fc_lport *lport, enum fc_lport_state state)
int size = sizeof(struct fc_ct_hdr);
size_t len;
int numattrs;
-
+ struct fc_host_attrs *fc_host = shost_to_fc_host(lport->host);
lockdep_assert_held(&lport->lp_mutex);
FC_LPORT_DBG(lport, "Entered %s state from %s state\n",
@@ -1449,10 +1455,10 @@ static void fc_lport_enter_ms(struct fc_lport *lport, enum fc_lport_state state)
case LPORT_ST_RHBA:
cmd = FC_FDMI_RHBA;
/* Number of HBA Attributes */
- numattrs = 10;
+ numattrs = 11;
len = sizeof(struct fc_fdmi_rhba);
len -= sizeof(struct fc_fdmi_attr_entry);
- len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN);
+
len += FC_FDMI_HBA_ATTR_NODENAME_LEN;
len += FC_FDMI_HBA_ATTR_MANUFACTURER_LEN;
len += FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN;
@@ -1463,6 +1469,21 @@ static void fc_lport_enter_ms(struct fc_lport *lport, enum fc_lport_state state)
len += FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN;
len += FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN;
len += FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN;
+ len += FC_FDMI_HBA_ATTR_MAXCTPAYLOAD_LEN;
+
+
+ if (fc_host->fdmi_version == FDMI_V2) {
+ numattrs += 7;
+ len += FC_FDMI_HBA_ATTR_NODESYMBLNAME_LEN;
+ len += FC_FDMI_HBA_ATTR_VENDORSPECIFICINFO_LEN;
+ len += FC_FDMI_HBA_ATTR_NUMBEROFPORTS_LEN;
+ len += FC_FDMI_HBA_ATTR_FABRICNAME_LEN;
+ len += FC_FDMI_HBA_ATTR_BIOSVERSION_LEN;
+ len += FC_FDMI_HBA_ATTR_BIOSSTATE_LEN;
+ len += FC_FDMI_HBA_ATTR_VENDORIDENTIFIER_LEN;
+ }
+
+ len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN);
size += len;
break;
@@ -1472,7 +1493,6 @@ static void fc_lport_enter_ms(struct fc_lport *lport, enum fc_lport_state state)
numattrs = 6;
len = sizeof(struct fc_fdmi_rpa);
len -= sizeof(struct fc_fdmi_attr_entry);
- len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN);
len += FC_FDMI_PORT_ATTR_FC4TYPES_LEN;
len += FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN;
len += FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN;
@@ -1480,6 +1500,22 @@ static void fc_lport_enter_ms(struct fc_lport *lport, enum fc_lport_state state)
len += FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN;
len += FC_FDMI_PORT_ATTR_HOSTNAME_LEN;
+ if (fc_host->fdmi_version == FDMI_V2) {
+ numattrs += 10;
+ len += FC_FDMI_PORT_ATTR_NODENAME_LEN;
+ len += FC_FDMI_PORT_ATTR_PORTNAME_LEN;
+ len += FC_FDMI_PORT_ATTR_SYMBOLICNAME_LEN;
+ len += FC_FDMI_PORT_ATTR_PORTTYPE_LEN;
+ len += FC_FDMI_PORT_ATTR_SUPPORTEDCLASSSRVC_LEN;
+ len += FC_FDMI_PORT_ATTR_FABRICNAME_LEN;
+ len += FC_FDMI_PORT_ATTR_CURRENTFC4TYPE_LEN;
+ len += FC_FDMI_PORT_ATTR_PORTSTATE_LEN;
+ len += FC_FDMI_PORT_ATTR_DISCOVEREDPORTS_LEN;
+ len += FC_FDMI_PORT_ATTR_PORTID_LEN;
+ }
+
+ len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN);
+
size += len;
break;
case LPORT_ST_DPRT:
@@ -1549,6 +1585,7 @@ static void fc_lport_timeout(struct work_struct *work)
struct fc_lport *lport =
container_of(work, struct fc_lport,
retry_work.work);
+ struct fc_host_attrs *fc_host = shost_to_fc_host(lport->host);
mutex_lock(&lport->lp_mutex);
@@ -1576,6 +1613,13 @@ static void fc_lport_timeout(struct work_struct *work)
fc_lport_enter_fdmi(lport);
break;
case LPORT_ST_RHBA:
+ if (fc_host->fdmi_version == FDMI_V2) {
+ FC_LPORT_DBG(lport, "timeout for FDMI-V2 RHBA,fall back to FDMI-V1\n");
+ fc_host->fdmi_version = FDMI_V1;
+ fc_lport_enter_ms(lport, LPORT_ST_RHBA);
+ break;
+ }
+ fallthrough;
case LPORT_ST_RPA:
case LPORT_ST_DHBA:
case LPORT_ST_DPRT:
@@ -1842,6 +1886,13 @@ EXPORT_SYMBOL(fc_lport_config);
*/
int fc_lport_init(struct fc_lport *lport)
{
+ struct fc_host_attrs *fc_host;
+
+ fc_host = shost_to_fc_host(lport->host);
+
+ /* Set FDMI version to FDMI-2 specification*/
+ fc_host->fdmi_version = FDMI_V2;
+
fc_host_port_type(lport->host) = FC_PORTTYPE_NPORT;
fc_host_node_name(lport->host) = lport->wwnn;
fc_host_port_name(lport->host) = lport->wwpn;
@@ -1850,6 +1901,7 @@ int fc_lport_init(struct fc_lport *lport)
sizeof(fc_host_supported_fc4s(lport->host)));
fc_host_supported_fc4s(lport->host)[2] = 1;
fc_host_supported_fc4s(lport->host)[7] = 1;
+ fc_host_num_discovered_ports(lport->host) = 4;
/* This value is also unchanging */
memset(fc_host_active_fc4s(lport->host), 0,