From db64e9301c067245928bfdbbd9c048cdba087927 Mon Sep 17 00:00:00 2001 From: Joe Carnuccio Date: Wed, 30 Oct 2013 03:38:18 -0400 Subject: [PATCH] [SCSI] qla2xxx: Add BSG interface for read/write serdes register. Signed-off-by: Joe Carnuccio Signed-off-by: Saurav Kashyap Signed-off-by: James Bottomley --- drivers/scsi/qla2xxx/qla_bsg.c | 44 +++++++++++++++++++++++++++ drivers/scsi/qla2xxx/qla_bsg.h | 13 ++++++++ drivers/scsi/qla2xxx/qla_dbg.c | 2 +- drivers/scsi/qla2xxx/qla_def.h | 3 +- drivers/scsi/qla2xxx/qla_gbl.h | 5 +++ drivers/scsi/qla2xxx/qla_mbx.c | 69 ++++++++++++++++++++++++++++++++++++++++++ 6 files changed, 134 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c index aa57bf0..f15d03e 100644 --- a/drivers/scsi/qla2xxx/qla_bsg.c +++ b/drivers/scsi/qla2xxx/qla_bsg.c @@ -2022,6 +2022,46 @@ done: } static int +qla26xx_serdes_op(struct fc_bsg_job *bsg_job) +{ + struct Scsi_Host *host = bsg_job->shost; + scsi_qla_host_t *vha = shost_priv(host); + int rval = 0; + struct qla_serdes_reg sr; + + memset(&sr, 0, sizeof(sr)); + + sg_copy_to_buffer(bsg_job->request_payload.sg_list, + bsg_job->request_payload.sg_cnt, &sr, sizeof(sr)); + + switch (sr.cmd) { + case INT_SC_SERDES_WRITE_REG: + rval = qla2x00_write_serdes_word(vha, sr.addr, sr.val); + bsg_job->reply->reply_payload_rcv_len = 0; + break; + case INT_SC_SERDES_READ_REG: + rval = qla2x00_read_serdes_word(vha, sr.addr, &sr.val); + sg_copy_from_buffer(bsg_job->reply_payload.sg_list, + bsg_job->reply_payload.sg_cnt, &sr, sizeof(sr)); + bsg_job->reply->reply_payload_rcv_len = sizeof(sr); + break; + default: + ql_log(ql_log_warn, vha, 0x708c, + "Unknown serdes cmd %x.\n", sr.cmd); + rval = -EDOM; + break; + } + + bsg_job->reply->reply_data.vendor_reply.vendor_rsp[0] = + rval ? EXT_STATUS_MAILBOX : 0; + + bsg_job->reply_len = sizeof(struct fc_bsg_reply); + bsg_job->reply->result = DID_OK << 16; + bsg_job->job_done(bsg_job); + return 0; +} + +static int qla2x00_process_vendor_specific(struct fc_bsg_job *bsg_job) { switch (bsg_job->request->rqst_data.h_vendor.vendor_cmd[0]) { @@ -2069,6 +2109,10 @@ qla2x00_process_vendor_specific(struct fc_bsg_job *bsg_job) case QL_VND_FX00_MGMT_CMD: return qlafx00_mgmt_cmd(bsg_job); + + case QL_VND_SERDES_OP: + return qla26xx_serdes_op(bsg_job); + default: return -ENOSYS; } diff --git a/drivers/scsi/qla2xxx/qla_bsg.h b/drivers/scsi/qla2xxx/qla_bsg.h index 04f7703..e5c2126 100644 --- a/drivers/scsi/qla2xxx/qla_bsg.h +++ b/drivers/scsi/qla2xxx/qla_bsg.h @@ -23,6 +23,7 @@ #define QL_VND_WRITE_I2C 0x10 #define QL_VND_READ_I2C 0x11 #define QL_VND_FX00_MGMT_CMD 0x12 +#define QL_VND_SERDES_OP 0x13 /* BSG Vendor specific subcode returns */ #define EXT_STATUS_OK 0 @@ -212,4 +213,16 @@ struct qla_i2c_access { uint8_t buffer[0x40]; } __packed; +/* 26xx serdes register interface */ + +/* serdes reg commands */ +#define INT_SC_SERDES_READ_REG 1 +#define INT_SC_SERDES_WRITE_REG 2 + +struct qla_serdes_reg { + uint16_t cmd; + uint16_t addr; + uint16_t val; +} __packed; + #endif diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c index 66f6597..9cd767c 100644 --- a/drivers/scsi/qla2xxx/qla_dbg.c +++ b/drivers/scsi/qla2xxx/qla_dbg.c @@ -12,7 +12,7 @@ * | Level | Last Value Used | Holes | * ---------------------------------------------------------------------- * | Module Init and Probe | 0x015b | 0x4b,0xba,0xfa | - * | Mailbox commands | 0x1181 | 0x111a-0x111b | + * | Mailbox commands | 0x1187 | 0x111a-0x111b | * | | | 0x1155-0x1158 | * | | | 0x1018-0x1019 | * | | | 0x1115-0x1116 | diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index ac62bca..41d6491 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -862,7 +862,6 @@ struct mbx_cmd_32 { */ #define MBC_LOAD_RAM 1 /* Load RAM. */ #define MBC_EXECUTE_FIRMWARE 2 /* Execute firmware. */ -#define MBC_WRITE_RAM_WORD 4 /* Write RAM word. */ #define MBC_READ_RAM_WORD 5 /* Read RAM word. */ #define MBC_MAILBOX_REGISTER_TEST 6 /* Wrap incoming mailboxes */ #define MBC_VERIFY_CHECKSUM 7 /* Verify checksum. */ @@ -937,6 +936,8 @@ struct mbx_cmd_32 { /* * ISP24xx mailbox commands */ +#define MBC_WRITE_SERDES 0x3 /* Write serdes word. */ +#define MBC_READ_SERDES 0x4 /* Read serdes word. */ #define MBC_SERDES_PARAMS 0x10 /* Serdes Tx Parameters. */ #define MBC_GET_IOCB_STATUS 0x12 /* Get IOCB status command. */ #define MBC_PORT_PARAMS 0x1A /* Port iDMA Parameters. */ diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index 359d0d9..00427e0 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -341,6 +341,11 @@ extern int qla2x00_system_error(scsi_qla_host_t *); extern int +qla2x00_write_serdes_word(scsi_qla_host_t *, uint16_t, uint16_t); +extern int +qla2x00_read_serdes_word(scsi_qla_host_t *, uint16_t, uint16_t *); + +extern int qla2x00_set_serdes_params(scsi_qla_host_t *, uint16_t, uint16_t, uint16_t); extern int diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 5957fee..b94511a 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -2800,6 +2800,75 @@ qla2x00_system_error(scsi_qla_host_t *vha) return rval; } +int +qla2x00_write_serdes_word(scsi_qla_host_t *vha, uint16_t addr, uint16_t data) +{ + int rval; + mbx_cmd_t mc; + mbx_cmd_t *mcp = &mc; + + if (!IS_QLA2031(vha->hw)) + return QLA_FUNCTION_FAILED; + + ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1182, + "Entered %s.\n", __func__); + + mcp->mb[0] = MBC_WRITE_SERDES; + mcp->mb[1] = addr; + mcp->mb[2] = data & 0xff; + mcp->mb[3] = 0; + mcp->out_mb = MBX_3|MBX_2|MBX_1|MBX_0; + mcp->in_mb = MBX_0; + mcp->tov = MBX_TOV_SECONDS; + mcp->flags = 0; + rval = qla2x00_mailbox_command(vha, mcp); + + if (rval != QLA_SUCCESS) { + ql_dbg(ql_dbg_mbx, vha, 0x1183, + "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]); + } else { + ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1184, + "Done %s.\n", __func__); + } + + return rval; +} + +int +qla2x00_read_serdes_word(scsi_qla_host_t *vha, uint16_t addr, uint16_t *data) +{ + int rval; + mbx_cmd_t mc; + mbx_cmd_t *mcp = &mc; + + if (!IS_QLA2031(vha->hw)) + return QLA_FUNCTION_FAILED; + + ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1185, + "Entered %s.\n", __func__); + + mcp->mb[0] = MBC_READ_SERDES; + mcp->mb[1] = addr; + mcp->mb[3] = 0; + mcp->out_mb = MBX_3|MBX_1|MBX_0; + mcp->in_mb = MBX_1|MBX_0; + mcp->tov = MBX_TOV_SECONDS; + mcp->flags = 0; + rval = qla2x00_mailbox_command(vha, mcp); + + *data = mcp->mb[1] & 0xff; + + if (rval != QLA_SUCCESS) { + ql_dbg(ql_dbg_mbx, vha, 0x1186, + "Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]); + } else { + ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1187, + "Done %s.\n", __func__); + } + + return rval; +} + /** * qla2x00_set_serdes_params() - * @ha: HA context -- 2.7.4