Commit d8b45213 authored by Andrew Vasquez's avatar Andrew Vasquez Committed by James Bottomley
Browse files

[SCSI] qla2xxx: Add iIDMA support.



iIDMA (Intelligent Interleaved Direct Memory Access) allows for
the HBA hardware to send FC frames at the rate at which they can
be received by a target device.  By taking advantage of the
higher link rate, the HBA can maximize bandwidth utilization in a
heterogeneous multi-speed SAN.

Within a fabric topology, port speed detection is done via a Name
Server command (GFPN_ID) followed by a Fabric Management command
(GPSC).  In an FCAL/N2N topology, port speed is based on the HBA
link-rate.
Signed-off-by: default avatarAndrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@SteelEye.com>
parent ee0ca6ba
......@@ -691,13 +691,13 @@ qla2x00_get_host_speed(struct Scsi_Host *shost)
uint32_t speed = 0;
switch (ha->link_data_rate) {
case LDR_1GB:
case PORT_SPEED_1GB:
speed = 1;
break;
case LDR_2GB:
case PORT_SPEED_2GB:
speed = 2;
break;
case LDR_4GB:
case PORT_SPEED_4GB:
speed = 4;
break;
}
......
......@@ -608,6 +608,7 @@ typedef struct {
*/
#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. */
#define MBC_GET_TIMEOUT_PARAMS 0x22 /* Get FW timeouts. */
#define MBC_TRACE_CONTROL 0x27 /* Trace control command. */
#define MBC_GEN_SYSTEM_ERROR 0x2a /* Generate System Error. */
......@@ -1497,6 +1498,9 @@ typedef struct {
port_id_t d_id;
uint8_t node_name[WWN_SIZE];
uint8_t port_name[WWN_SIZE];
uint8_t fabric_port_name[WWN_SIZE];
uint16_t fp_speeds;
uint16_t fp_speed;
} sw_info_t;
/*
......@@ -1524,6 +1528,9 @@ typedef struct fc_port {
uint16_t loop_id;
uint16_t old_loop_id;
uint8_t fabric_port_name[WWN_SIZE];
uint16_t fp_speed;
fc_port_type_t port_type;
atomic_t state;
......@@ -1635,6 +1642,15 @@ typedef struct fc_port {
#define RSNN_NN_REQ_SIZE (16 + 8 + 1 + 255)
#define RSNN_NN_RSP_SIZE 16
#define GFPN_ID_CMD 0x11C
#define GFPN_ID_REQ_SIZE (16 + 4)
#define GFPN_ID_RSP_SIZE (16 + 8)
#define GPSC_CMD 0x127
#define GPSC_REQ_SIZE (16 + 8)
#define GPSC_RSP_SIZE (16 + 2 + 2)
/*
* HBA attribute types.
*/
......@@ -1748,7 +1764,7 @@ struct ct_sns_req {
uint8_t reserved[3];
union {
/* GA_NXT, GPN_ID, GNN_ID, GFT_ID */
/* GA_NXT, GPN_ID, GNN_ID, GFT_ID, GFPN_ID */
struct {
uint8_t reserved;
uint8_t port_id[3];
......@@ -1823,6 +1839,10 @@ struct ct_sns_req {
struct {
uint8_t port_name[8];
} dpa;
struct {
uint8_t port_name[8];
} gpsc;
} req;
};
......@@ -1886,6 +1906,15 @@ struct ct_sns_rsp {
uint8_t port_name[8];
struct ct_fdmi_hba_attributes attrs;
} ghat;
struct {
uint8_t port_name[8];
} gfpn_id;
struct {
uint16_t speeds;
uint16_t speed;
} gpsc;
} rsp;
};
......@@ -2182,11 +2211,11 @@ typedef struct scsi_qla_host {
uint16_t max_public_loop_ids;
uint16_t min_external_loopid; /* First external loop Id */
#define PORT_SPEED_UNKNOWN 0xFFFF
#define PORT_SPEED_1GB 0x00
#define PORT_SPEED_2GB 0x01
#define PORT_SPEED_4GB 0x03
uint16_t link_data_rate; /* F/W operating speed */
#define LDR_1GB 0
#define LDR_2GB 1
#define LDR_4GB 3
#define LDR_UNKNOWN 0xFFFF
uint8_t current_topology;
uint8_t prev_topology;
......
......@@ -208,6 +208,12 @@ qla2x00_trace_control(scsi_qla_host_t *, uint16_t, dma_addr_t, uint16_t);
extern int
qla2x00_read_sfp(scsi_qla_host_t *, dma_addr_t, uint16_t, uint16_t, uint16_t);
extern int
qla2x00_get_idma_speed(scsi_qla_host_t *, uint16_t, uint16_t *, uint16_t *);
extern int
qla2x00_set_idma_speed(scsi_qla_host_t *, uint16_t, uint16_t, uint16_t *);
/*
* Global Function Prototypes in qla_isr.c source file.
*/
......@@ -279,6 +285,8 @@ extern int qla2x00_rsnn_nn(scsi_qla_host_t *);
extern void *qla2x00_prep_ms_fdmi_iocb(scsi_qla_host_t *, uint32_t, uint32_t);
extern void *qla24xx_prep_ms_fdmi_iocb(scsi_qla_host_t *, uint32_t, uint32_t);
extern int qla2x00_fdmi_register(scsi_qla_host_t *);
extern int qla2x00_gfpn_id(scsi_qla_host_t *, sw_info_t *);
extern int qla2x00_gpsc(scsi_qla_host_t *, sw_info_t *);
/*
* Global Function Prototypes in qla_attr.c source file.
......
......@@ -687,7 +687,6 @@ qla2x00_rsnn_nn(scsi_qla_host_t *ha)
return (rval);
}
/**
* qla2x00_prep_sns_cmd() - Prepare common SNS command request fields for query.
* @ha: HA context
......@@ -1647,3 +1646,189 @@ qla2x00_fdmi_register(scsi_qla_host_t *ha)
return rval;
}
/**
* qla2x00_gfpn_id() - SNS Get Fabric Port Name (GFPN_ID) query.
* @ha: HA context
* @list: switch info entries to populate
*
* Returns 0 on success.
*/
int
qla2x00_gfpn_id(scsi_qla_host_t *ha, sw_info_t *list)
{
int rval;
uint16_t i;
ms_iocb_entry_t *ms_pkt;
struct ct_sns_req *ct_req;
struct ct_sns_rsp *ct_rsp;
if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha))
return QLA_FUNCTION_FAILED;
for (i = 0; i < MAX_FIBRE_DEVICES; i++) {
/* Issue GFPN_ID */
memset(list[i].fabric_port_name, 0, WWN_SIZE);
/* Prepare common MS IOCB */
ms_pkt = qla2x00_prep_ms_iocb(ha, GFPN_ID_REQ_SIZE,
GFPN_ID_RSP_SIZE);
/* Prepare CT request */
ct_req = qla2x00_prep_ct_req(&ha->ct_sns->p.req, GFPN_ID_CMD,
GFPN_ID_RSP_SIZE);
ct_rsp = &ha->ct_sns->p.rsp;
/* Prepare CT arguments -- port_id */
ct_req->req.port_id.port_id[0] = list[i].d_id.b.domain;
ct_req->req.port_id.port_id[1] = list[i].d_id.b.area;
ct_req->req.port_id.port_id[2] = list[i].d_id.b.al_pa;
/* Execute MS IOCB */
rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma,
sizeof(ms_iocb_entry_t));
if (rval != QLA_SUCCESS) {
/*EMPTY*/
DEBUG2_3(printk("scsi(%ld): GFPN_ID issue IOCB "
"failed (%d).\n", ha->host_no, rval));
} else if (qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp,
"GFPN_ID") != QLA_SUCCESS) {
rval = QLA_FUNCTION_FAILED;
} else {
/* Save fabric portname */
memcpy(list[i].fabric_port_name,
ct_rsp->rsp.gfpn_id.port_name, WWN_SIZE);
}
/* Last device exit. */
if (list[i].d_id.b.rsvd_1 != 0)
break;
}
return (rval);
}
static inline void *
qla24xx_prep_ms_fm_iocb(scsi_qla_host_t *ha, uint32_t req_size,
uint32_t rsp_size)
{
struct ct_entry_24xx *ct_pkt;
ct_pkt = (struct ct_entry_24xx *)ha->ms_iocb;
memset(ct_pkt, 0, sizeof(struct ct_entry_24xx));
ct_pkt->entry_type = CT_IOCB_TYPE;
ct_pkt->entry_count = 1;
ct_pkt->nport_handle = cpu_to_le16(ha->mgmt_svr_loop_id);
ct_pkt->timeout = __constant_cpu_to_le16(59);
ct_pkt->cmd_dsd_count = __constant_cpu_to_le16(1);
ct_pkt->rsp_dsd_count = __constant_cpu_to_le16(1);
ct_pkt->rsp_byte_count = cpu_to_le32(rsp_size);
ct_pkt->cmd_byte_count = cpu_to_le32(req_size);
ct_pkt->dseg_0_address[0] = cpu_to_le32(LSD(ha->ct_sns_dma));
ct_pkt->dseg_0_address[1] = cpu_to_le32(MSD(ha->ct_sns_dma));
ct_pkt->dseg_0_len = ct_pkt->cmd_byte_count;
ct_pkt->dseg_1_address[0] = cpu_to_le32(LSD(ha->ct_sns_dma));
ct_pkt->dseg_1_address[1] = cpu_to_le32(MSD(ha->ct_sns_dma));
ct_pkt->dseg_1_len = ct_pkt->rsp_byte_count;
return ct_pkt;
}
static inline struct ct_sns_req *
qla24xx_prep_ct_fm_req(struct ct_sns_req *ct_req, uint16_t cmd,
uint16_t rsp_size)
{
memset(ct_req, 0, sizeof(struct ct_sns_pkt));
ct_req->header.revision = 0x01;
ct_req->header.gs_type = 0xFA;
ct_req->header.gs_subtype = 0x01;
ct_req->command = cpu_to_be16(cmd);
ct_req->max_rsp_size = cpu_to_be16((rsp_size - 16) / 4);
return ct_req;
}
/**
* qla2x00_gpsc() - FCS Get Port Speed Capabilities (GPSC) query.
* @ha: HA context
* @list: switch info entries to populate
*
* Returns 0 on success.
*/
int
qla2x00_gpsc(scsi_qla_host_t *ha, sw_info_t *list)
{
int rval;
uint16_t i;
ms_iocb_entry_t *ms_pkt;
struct ct_sns_req *ct_req;
struct ct_sns_rsp *ct_rsp;
if (!IS_QLA24XX(ha) && !IS_QLA54XX(ha))
return QLA_FUNCTION_FAILED;
rval = qla2x00_mgmt_svr_login(ha);
if (rval)
return rval;
for (i = 0; i < MAX_FIBRE_DEVICES; i++) {
/* Issue GFPN_ID */
list[i].fp_speeds = list[i].fp_speed = 0;
/* Prepare common MS IOCB */
ms_pkt = qla24xx_prep_ms_fm_iocb(ha, GPSC_REQ_SIZE,
GPSC_RSP_SIZE);
/* Prepare CT request */
ct_req = qla24xx_prep_ct_fm_req(&ha->ct_sns->p.req,
GPSC_CMD, GPSC_RSP_SIZE);
ct_rsp = &ha->ct_sns->p.rsp;
/* Prepare CT arguments -- port_name */
memcpy(ct_req->req.gpsc.port_name, list[i].fabric_port_name,
WWN_SIZE);
/* Execute MS IOCB */
rval = qla2x00_issue_iocb(ha, ha->ms_iocb, ha->ms_iocb_dma,
sizeof(ms_iocb_entry_t));
if (rval != QLA_SUCCESS) {
/*EMPTY*/
DEBUG2_3(printk("scsi(%ld): GPSC issue IOCB "
"failed (%d).\n", ha->host_no, rval));
} else if (qla2x00_chk_ms_status(ha, ms_pkt, ct_rsp,
"GPSC") != QLA_SUCCESS) {
rval = QLA_FUNCTION_FAILED;
} else {
/* Save portname */
list[i].fp_speeds = ct_rsp->rsp.gpsc.speeds;
list[i].fp_speed = ct_rsp->rsp.gpsc.speed;
DEBUG2_3(printk("scsi(%ld): GPSC ext entry - "
"fpn %02x%02x%02x%02x%02x%02x%02x%02x speeds=%04x "
"speed=%04x.\n", ha->host_no,
list[i].fabric_port_name[0],
list[i].fabric_port_name[1],
list[i].fabric_port_name[2],
list[i].fabric_port_name[3],
list[i].fabric_port_name[4],
list[i].fabric_port_name[5],
list[i].fabric_port_name[6],
list[i].fabric_port_name[7],
be16_to_cpu(list[i].fp_speeds),
be16_to_cpu(list[i].fp_speed)));
}
/* Last device exit. */
if (list[i].d_id.b.rsvd_1 != 0)
break;
}
return (rval);
}
......@@ -2074,6 +2074,19 @@ qla2x00_configure_local_loop(scsi_qla_host_t *ha)
new_fcport->flags &= ~FCF_FABRIC_DEVICE;
}
/* Base iIDMA settings on HBA port speed. */
switch (ha->link_data_rate) {
case PORT_SPEED_1GB:
fcport->fp_speed = cpu_to_be16(BIT_15);
break;
case PORT_SPEED_2GB:
fcport->fp_speed = cpu_to_be16(BIT_14);
break;
case PORT_SPEED_4GB:
fcport->fp_speed = cpu_to_be16(BIT_13);
break;
}
qla2x00_update_fcport(ha, fcport);
found_devs++;
......@@ -2109,6 +2122,62 @@ qla2x00_probe_for_all_luns(scsi_qla_host_t *ha)
}
}
static void
qla2x00_iidma_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
{
#define LS_UNKNOWN 2
static char *link_speeds[5] = { "1", "2", "?", "4" };
int rval;
uint16_t port_speed, mb[6];
if (!IS_QLA24XX(ha))
return;
switch (be16_to_cpu(fcport->fp_speed)) {
case BIT_15:
port_speed = PORT_SPEED_1GB;
break;
case BIT_14:
port_speed = PORT_SPEED_2GB;
break;
case BIT_13:
port_speed = PORT_SPEED_4GB;
break;
default:
DEBUG2(printk("scsi(%ld): %02x%02x%02x%02x%02x%02x%02x%02x -- "
"unsupported FM port operating speed (%04x).\n",
ha->host_no, fcport->port_name[0], fcport->port_name[1],
fcport->port_name[2], fcport->port_name[3],
fcport->port_name[4], fcport->port_name[5],
fcport->port_name[6], fcport->port_name[7],
be16_to_cpu(fcport->fp_speed)));
port_speed = PORT_SPEED_UNKNOWN;
break;
}
if (port_speed == PORT_SPEED_UNKNOWN)
return;
rval = qla2x00_set_idma_speed(ha, fcport->loop_id, port_speed, mb);
if (rval != QLA_SUCCESS) {
DEBUG2(printk("scsi(%ld): Unable to adjust iIDMA "
"%02x%02x%02x%02x%02x%02x%02x%02x -- %04x %x %04x %04x.\n",
ha->host_no, fcport->port_name[0], fcport->port_name[1],
fcport->port_name[2], fcport->port_name[3],
fcport->port_name[4], fcport->port_name[5],
fcport->port_name[6], fcport->port_name[7], rval,
port_speed, mb[0], mb[1]));
} else {
DEBUG2(qla_printk(KERN_INFO, ha,
"iIDMA adjusted to %s GB/s on "
"%02x%02x%02x%02x%02x%02x%02x%02x.\n",
link_speeds[port_speed], fcport->port_name[0],
fcport->port_name[1], fcport->port_name[2],
fcport->port_name[3], fcport->port_name[4],
fcport->port_name[5], fcport->port_name[6],
fcport->port_name[7]));
}
}
/*
* qla2x00_update_fcport
* Updates device on list.
......@@ -2135,6 +2204,8 @@ qla2x00_update_fcport(scsi_qla_host_t *ha, fc_port_t *fcport)
PORT_RETRY_TIME);
fcport->flags &= ~FCF_LOGIN_NEEDED;
qla2x00_iidma_fcport(ha, fcport);
atomic_set(&fcport->state, FCS_ONLINE);
if (ha->flags.init_done)
......@@ -2416,6 +2487,8 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
} else if (qla2x00_gnn_id(ha, swl) != QLA_SUCCESS) {
kfree(swl);
swl = NULL;
} else if (qla2x00_gfpn_id(ha, swl) == QLA_SUCCESS) {
qla2x00_gpsc(ha, swl);
}
}
swl_idx = 0;
......@@ -2450,6 +2523,9 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
swl[swl_idx].node_name, WWN_SIZE);
memcpy(new_fcport->port_name,
swl[swl_idx].port_name, WWN_SIZE);
memcpy(new_fcport->fabric_port_name,
swl[swl_idx].fabric_port_name, WWN_SIZE);
new_fcport->fp_speed = swl[swl_idx].fp_speed;
if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
last_dev = 1;
......@@ -2507,6 +2583,11 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *ha, struct list_head *new_fcports)
found++;
/* Update port state. */
memcpy(fcport->fabric_port_name,
new_fcport->fabric_port_name, WWN_SIZE);
fcport->fp_speed = new_fcport->fp_speed;
/*
* If address the same and state FCS_ONLINE, nothing
* changed.
......
......@@ -400,7 +400,7 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
case MBA_LOOP_UP: /* Loop Up Event */
if (IS_QLA2100(ha) || IS_QLA2200(ha)) {
link_speed = link_speeds[0];
ha->link_data_rate = LDR_1GB;
ha->link_data_rate = PORT_SPEED_1GB;
} else {
link_speed = link_speeds[LS_UNKNOWN];
if (mb[1] < 5)
......@@ -429,7 +429,7 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
}
ha->flags.management_server_logged_in = 0;
ha->link_data_rate = LDR_UNKNOWN;
ha->link_data_rate = PORT_SPEED_UNKNOWN;
if (ql2xfdmienable)
set_bit(REGISTER_FDMI_NEEDED, &ha->dpc_flags);
break;
......
......@@ -2540,3 +2540,89 @@ qla2x00_read_sfp(scsi_qla_host_t *ha, dma_addr_t sfp_dma, uint16_t addr,
return rval;
}
int
qla2x00_get_idma_speed(scsi_qla_host_t *ha, uint16_t loop_id,
uint16_t *port_speed, uint16_t *mb)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
if (!IS_QLA24XX(ha))
return QLA_FUNCTION_FAILED;
DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no));
mcp->mb[0] = MBC_PORT_PARAMS;
mcp->mb[1] = loop_id;
mcp->mb[2] = mcp->mb[3] = mcp->mb[4] = mcp->mb[5] = 0;
mcp->out_mb = MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_5|MBX_4|MBX_3|MBX_1|MBX_0;
mcp->tov = 30;
mcp->flags = 0;
rval = qla2x00_mailbox_command(ha, mcp);
/* Return mailbox statuses. */
if (mb != NULL) {
mb[0] = mcp->mb[0];
mb[1] = mcp->mb[1];
mb[3] = mcp->mb[3];
mb[4] = mcp->mb[4];
mb[5] = mcp->mb[5];
}
if (rval != QLA_SUCCESS) {
DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__,
ha->host_no, rval));
} else {
DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no));
if (port_speed)
*port_speed = mcp->mb[3];
}
return rval;
}
int
qla2x00_set_idma_speed(scsi_qla_host_t *ha, uint16_t loop_id,
uint16_t port_speed, uint16_t *mb)
{
int rval;
mbx_cmd_t mc;
mbx_cmd_t *mcp = &mc;
if (!IS_QLA24XX(ha))
return QLA_FUNCTION_FAILED;
DEBUG11(printk("%s(%ld): entered.\n", __func__, ha->host_no));
mcp->mb[0] = MBC_PORT_PARAMS;
mcp->mb[1] = loop_id;
mcp->mb[2] = BIT_0;
mcp->mb[3] = port_speed & (BIT_2|BIT_1|BIT_0);
mcp->mb[4] = mcp->mb[5] = 0;
mcp->out_mb = MBX_5|MBX_4|MBX_3|MBX_2|MBX_1|MBX_0;
mcp->in_mb = MBX_5|MBX_4|MBX_3|MBX_1|MBX_0;
mcp->tov = 30;
mcp->flags = 0;
rval = qla2x00_mailbox_command(ha, mcp);
/* Return mailbox statuses. */
if (mb != NULL) {
mb[0] = mcp->mb[0];
mb[1] = mcp->mb[1];
mb[3] = mcp->mb[3];
mb[4] = mcp->mb[4];
mb[5] = mcp->mb[5];
}
if (rval != QLA_SUCCESS) {
DEBUG2_3_11(printk("%s(%ld): failed=%x.\n", __func__,
ha->host_no, rval));
} else {
DEBUG11(printk("%s(%ld): done.\n", __func__, ha->host_no));
}
return rval;
}
......@@ -1385,7 +1385,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
ha->prev_topology = 0;
ha->init_cb_size = sizeof(init_cb_t);
ha->mgmt_svr_loop_id = MANAGEMENT_SERVER;
ha->link_data_rate = LDR_UNKNOWN;
ha->link_data_rate = PORT_SPEED_UNKNOWN;
ha->optrom_size = OPTROM_SIZE_2300;
/* Assign ISP specific operations. */
......
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