diff options
| author | Julian Wiedmann <jwi@linux.ibm.com> | 2020-10-28 19:30:51 +0100 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2020-10-30 03:17:01 +0100 |
| commit | a6c37abe6988eb33a5f301e252ee41ed22b8df8d (patch) | |
| tree | a009faf078f80a2489bd612e2286fec9e1508368 /drivers | |
| parent | scsi: zfcp: Clarify & assert the stat_lock locking in zfcp_qdio_send() (diff) | |
| download | linux-a6c37abe6988eb33a5f301e252ee41ed22b8df8d.tar.xz linux-a6c37abe6988eb33a5f301e252ee41ed22b8df8d.zip | |
scsi: zfcp: Process Version Change events
Handle notifications for a concurrent change of the FCP Channel firmware.
Update the relevant user-visible fields to provide accurate data.
Link: https://lore.kernel.org/r/d2c7bc57c6cf1b65eabbf7a5d0e3927b9f65647f.1603908167.git.bblock@linux.ibm.com
Reviewed-by: Steffen Maier <maier@linux.ibm.com>
Reviewed-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Julian Wiedmann <jwi@linux.ibm.com>
Signed-off-by: Benjamin Block <bblock@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/s390/scsi/zfcp_fsf.c | 16 | ||||
| -rw-r--r-- | drivers/s390/scsi/zfcp_fsf.h | 10 |
2 files changed, 26 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index 6cb963a06777..afa95e04eceb 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -242,6 +242,19 @@ static void zfcp_fsf_status_read_link_down(struct zfcp_fsf_req *req) } } +static void +zfcp_fsf_status_read_version_change(struct zfcp_adapter *adapter, + struct fsf_status_read_buffer *sr_buf) +{ + if (sr_buf->status_subtype == FSF_STATUS_READ_SUB_LIC_CHANGE) { + u32 version = sr_buf->payload.version_change.current_version; + + WRITE_ONCE(adapter->fsf_lic_version, version); + snprintf(fc_host_firmware_version(adapter->scsi_host), + FC_VERSION_STRING_SIZE, "%#08x", version); + } +} + static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) { struct zfcp_adapter *adapter = req->adapter; @@ -300,6 +313,9 @@ static void zfcp_fsf_status_read_handler(struct zfcp_fsf_req *req) case FSF_STATUS_READ_FEATURE_UPDATE_ALERT: adapter->adapter_features = sr_buf->payload.word[0]; break; + case FSF_STATUS_READ_VERSION_CHANGE: + zfcp_fsf_status_read_version_change(adapter, sr_buf); + break; } mempool_free(virt_to_page(sr_buf), adapter->pool.sr_data); diff --git a/drivers/s390/scsi/zfcp_fsf.h b/drivers/s390/scsi/zfcp_fsf.h index 09d73d0061ef..26ad7a0c5ce3 100644 --- a/drivers/s390/scsi/zfcp_fsf.h +++ b/drivers/s390/scsi/zfcp_fsf.h @@ -134,6 +134,7 @@ #define FSF_STATUS_READ_LINK_UP 0x00000006 #define FSF_STATUS_READ_NOTIFICATION_LOST 0x00000009 #define FSF_STATUS_READ_FEATURE_UPDATE_ALERT 0x0000000C +#define FSF_STATUS_READ_VERSION_CHANGE 0x0000000D /* status subtypes for link down */ #define FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK 0x00000000 @@ -143,6 +144,9 @@ /* status subtypes for unsolicited status notification lost */ #define FSF_STATUS_READ_SUB_INCOMING_ELS 0x00000001 +/* status subtypes for version change */ +#define FSF_STATUS_READ_SUB_LIC_CHANGE 0x00000001 + /* topologie that is detected by the adapter */ #define FSF_TOPO_P2P 0x00000001 #define FSF_TOPO_FABRIC 0x00000002 @@ -226,6 +230,11 @@ struct fsf_link_down_info { u8 vendor_specific_code; } __attribute__ ((packed)); +struct fsf_version_change { + u32 current_version; + u32 previous_version; +} __packed; + struct fsf_status_read_buffer { u32 status_type; u32 status_subtype; @@ -242,6 +251,7 @@ struct fsf_status_read_buffer { u32 word[FSF_STATUS_READ_PAYLOAD_SIZE/sizeof(u32)]; struct fsf_link_down_info link_down_info; struct fsf_bit_error_payload bit_error; + struct fsf_version_change version_change; } payload; } __attribute__ ((packed)); |