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| author | Manish Rangankar <mrangankar@marvell.com> | 2023-08-21 16:00:37 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2023-08-22 00:45:14 +0300 |
| commit | 875386b98857822b77ac7f95bdf367b70af5b78c (patch) | |
| tree | bd402bb72574c5b0e5a943c7556d7ac2e8267138 /drivers/scsi/qla2xxx/qla_nvme.h | |
| parent | ae25f65a351ca9c650887c2b37319fa9a41ec258 (diff) | |
| download | linux-875386b98857822b77ac7f95bdf367b70af5b78c.tar.xz | |
scsi: qla2xxx: Add Unsolicited LS Request and Response Support for NVMe
Introduce infrastructure in the driver to support the processing of
unsolicited LS (Link Service) requests. This will involve the utilization
of a new pass-up of unsolicited FC-NVMe request IOCB interface. Unsolicited
requests will be submitted to the NVMe transport layer through
nvme_fc_rcv_ls_req(). Any received LS responses, which are sent using
xmt_ls_rsp(), will be forwarded to the firmware through the existing
Pass-Through IOCB interface, responsible for sending FC-NVMe Link Service
requests and responses.
Signed-off-by: Manish Rangankar <mrangankar@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230821130045.34850-2-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_nvme.h')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_nvme.h | 17 |
1 files changed, 10 insertions, 7 deletions
diff --git a/drivers/scsi/qla2xxx/qla_nvme.h b/drivers/scsi/qla2xxx/qla_nvme.h index d299478371b2..a253ac55171b 100644 --- a/drivers/scsi/qla2xxx/qla_nvme.h +++ b/drivers/scsi/qla2xxx/qla_nvme.h @@ -21,6 +21,7 @@ #define Q2T_NVME_NUM_TAGS 2048 #define QLA_MAX_FC_SEGMENTS 64 +struct qla_nvme_unsol_ctx; struct scsi_qla_host; struct qla_hw_data; struct req_que; @@ -37,6 +38,7 @@ struct nvme_private { struct qla_nvme_rport { struct fc_port *fcport; + struct qla_nvme_unsol_ctx *uctx; }; #define COMMAND_NVME 0x88 /* Command Type FC-NVMe IOCB */ @@ -75,6 +77,9 @@ struct cmd_nvme { struct dsd64 nvme_dsd; }; +#define PURLS_MSLEEP_INTERVAL 1 +#define PURLS_RETRY_COUNT 5 + #define PT_LS4_REQUEST 0x89 /* Link Service pass-through IOCB (request) */ struct pt_ls4_request { uint8_t entry_type; @@ -118,21 +123,19 @@ struct pt_ls4_rx_unsol { __le32 exchange_address; uint8_t d_id[3]; uint8_t r_ctl; - be_id_t s_id; + le_id_t s_id; uint8_t cs_ctl; uint8_t f_ctl[3]; uint8_t type; __le16 seq_cnt; uint8_t df_ctl; uint8_t seq_id; - __le16 rx_id; - __le16 ox_id; - __le32 param; - __le32 desc0; + __le16 rx_id; + __le16 ox_id; + __le32 desc0; #define PT_LS4_PAYLOAD_OFFSET 0x2c #define PT_LS4_FIRST_PACKET_LEN 20 - __le32 desc_len; - __le32 payload[3]; + __le32 payload[5]; }; /* |