[RFC-v5 2/3] qla2xxx: Enable >= 24xx target-mode support in SCSI LLD

From: Nicholas A. Bellinger
Date: Thu Mar 08 2012 - 19:56:41 EST

From: Nicholas Bellinger <nab@xxxxxxxxxxxxxxx>

This patch enables target mode support within the existing qla2xxx
LLD using qla_target.c logic. This includes the following changes:

*) Addition of target mode specific members to existing data
structures in qla_def.h and struct qla_hw_data->tgt_ops using
qla_target.h:struct qla_tgt_func_tmpl

*) Addition of struct qla_tgt_func_tmpl and direct calls into
qla_target.c logic w/ qla_tgt_* prefixed functions.

*) Addition of qla_iocb.c:qla2x00_req_pkt() for ring processing, and
qla2x00_issue_marker() for handling request/response queue processing
for target mode operation

*) Addition of various qla_tgt_mode_enabled() logic checks in
qla24xx_nvram_config(), qla2x00_initialize_adapter(), qla2x00_rff_id(),
qla2x00_abort_isp(), qla24xx_modify_vp_config(), and
qla2x00_vp_abort_isp().

More specific checks for qla_hw_data->qla2x_tmpl include:

*) control plane:

qla_init.c:qla2x00_rport_del() -> qla_tgt_fc_port_deleted()
qla_init.c:qla2x00_reg_remote_port() -> qla_tgt_fc_port_added()
qla_init.c:qla2x00_device_resync() -> qla2x00_mark_device_lost()

*) I/O path:

qla_isr.c:qla2x00_async_event() -> qla_tgt_async_event()
qla_isr.c:qla2x00_process_response_queue() ->
qla_tgt_response_pkt_all_vps()
qla_isr.c:qla24xx_process_response_queue() ->
qla_tgt_response_pkt_all_vps()

*) interrupt handlers:

qla_isr.c:qla24xx_intr_handler() -> qla_tgt_24xx_process_atio_queue() +
qla24xx_process_response_queue()
qla24xx_msix_default(): qla_tgt_24xx_process_atio_queue() +
qla24xx_process_response_queue()

Cc: Andrew Vasquez <andrew.vasquez@xxxxxxxxxx>
Cc: Arun Easi <arun.easi@xxxxxxxxxx>
Cc: Giridhar Malavali <giridhar.malavali@xxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Cc: James Bottomley <JBottomley@xxxxxxxxxxxxx>
Cc: Roland Dreier <roland@xxxxxxxxxxxxxxx>
Cc: Joern Engel <joern@xxxxxxxxx>
Cc: Madhuranath Iyengar <mni@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Nicholas A. Bellinger <nab@xxxxxxxxxxxxxxx>
---
drivers/scsi/qla2xxx/qla_attr.c | 5 +-
drivers/scsi/qla2xxx/qla_dbg.c | 5 ++
drivers/scsi/qla2xxx/qla_dbg.h | 5 ++
drivers/scsi/qla2xxx/qla_def.h | 69 ++++++++++++++++++--
drivers/scsi/qla2xxx/qla_gbl.h | 7 ++
drivers/scsi/qla2xxx/qla_gs.c | 4 +-
drivers/scsi/qla2xxx/qla_init.c | 92 ++++++++++++++++++++++++---
drivers/scsi/qla2xxx/qla_iocb.c | 102 +++++++++++++++++++++++++++++-
drivers/scsi/qla2xxx/qla_isr.c | 87 +++++++++++++++++++++++++-
drivers/scsi/qla2xxx/qla_mbx.c | 116 ++++++++++++++++++++++++++++++++--
drivers/scsi/qla2xxx/qla_mid.c | 17 +++++-
drivers/scsi/qla2xxx/qla_os.c | 133 ++++++++++++++++++++++++++++++++++-----
12 files changed, 597 insertions(+), 45 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 9f41b3b..250cde8 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -5,6 +5,7 @@
* See LICENSE.qla2xxx for copyright and licensing details.
*/
#include "qla_def.h"
+#include "qla_target.h"

#include <linux/kthread.h>
#include <linux/vmalloc.h>
@@ -1869,6 +1870,7 @@ qla24xx_vport_create(struct fc_vport *fc_vport, bool disable)
fc_host_supported_speeds(vha->host) =
fc_host_supported_speeds(base_vha->host);

+ qla_tgt_vport_create(vha, ha);
qla24xx_vport_disable(fc_vport, disable);

if (ha->flags.cpu_affinity_enabled) {
@@ -2082,7 +2084,8 @@ qla2x00_init_host_attr(scsi_qla_host_t *vha)
fc_host_dev_loss_tmo(vha->host) = ha->port_down_retry_count;
fc_host_node_name(vha->host) = wwn_to_u64(vha->node_name);
fc_host_port_name(vha->host) = wwn_to_u64(vha->port_name);
- fc_host_supported_classes(vha->host) = FC_COS_CLASS3;
+ fc_host_supported_classes(vha->host) = ha->enable_class_2 ?
+ (FC_COS_CLASS2|FC_COS_CLASS3) : FC_COS_CLASS3;
fc_host_max_npiv_vports(vha->host) = ha->max_npiv_vports;
fc_host_npiv_vports_inuse(vha->host) = ha->cur_vport_count;

diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index 45cbf0b..1847f58 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -28,6 +28,11 @@
* | ISP82XX Specific | 0xb052 | |
* | MultiQ | 0xc00b | |
* | Misc | 0xd00b | |
+ * | Target Mode | 0xe037 | |
+ * | Target Mode Management | 0xe14e | |
+ * | Target Mode SCSI Packets | 0xe20b | |
+ * | Target Mode Scatterlists | 0xe30c | |
+ * | Target Mode Task Management | 0xe409 | |
* ----------------------------------------------------------------------
*/

diff --git a/drivers/scsi/qla2xxx/qla_dbg.h b/drivers/scsi/qla2xxx/qla_dbg.h
index 5f1b6d9..c785a38 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.h
+++ b/drivers/scsi/qla2xxx/qla_dbg.h
@@ -276,3 +276,8 @@ ql_log_pci(uint32_t, struct pci_dev *pdev, int32_t, const char *fmt, ...);
#define ql_dbg_misc 0x00010000 /* For dumping everything that is not
* not covered by upper categories
*/
+#define ql_dbg_tgt 0x00008000 /* Target mode */
+#define ql_dbg_tgt_mgt 0x00004000 /* Target mode management */
+#define ql_dbg_tgt_pkt 0x00002000 /* Target mode SCSI packets */
+#define ql_dbg_tgt_sgl 0x00001000 /* Target mode scatterlists */
+#define ql_dbg_tgt_tmr 0x00000800 /* Target mode task management */
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index af1003f..17d6449 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -177,7 +177,7 @@
#define LOOP_DOWN_RESET (LOOP_DOWN_TIME - 30)

/* Maximum outstanding commands in ISP queues (1-65535) */
-#define MAX_OUTSTANDING_COMMANDS 1024
+#define MAX_OUTSTANDING_COMMANDS 16384

/* ISP request and response entry counts (37-65535) */
#define REQUEST_ENTRY_CNT_2100 128 /* Number of request entries. */
@@ -186,6 +186,7 @@
#define RESPONSE_ENTRY_CNT_2100 64 /* Number of response entries.*/
#define RESPONSE_ENTRY_CNT_2300 512 /* Number of response entries.*/
#define RESPONSE_ENTRY_CNT_MQ 128 /* Number of response entries.*/
+#define ATIO_ENTRY_CNT_24XX 4096 /* Number of ATIO entries. */

struct req_que;

@@ -548,7 +549,7 @@ typedef struct {
#define MBA_SYSTEM_ERR 0x8002 /* System Error. */
#define MBA_REQ_TRANSFER_ERR 0x8003 /* Request Transfer Error. */
#define MBA_RSP_TRANSFER_ERR 0x8004 /* Response Transfer Error. */
-#define MBA_WAKEUP_THRES 0x8005 /* Request Queue Wake-up. */
+#define MBA_WAKEUP_THRES 0x8005 /* Request Queue Wake-up. */
#define MBA_LIP_OCCURRED 0x8010 /* Loop Initialization Procedure */
/* occurred. */
#define MBA_LOOP_UP 0x8011 /* FC Loop UP. */
@@ -1222,11 +1223,27 @@ typedef struct {
* ISP queue - response queue entry definition.
*/
typedef struct {
- uint8_t data[60];
+ uint8_t entry_type; /* Entry type. */
+ uint8_t entry_count; /* Entry count. */
+ uint8_t sys_define; /* System defined. */
+ uint8_t entry_status; /* Entry Status. */
+ uint32_t handle; /* System defined handle */
+ uint8_t data[52];
uint32_t signature;
#define RESPONSE_PROCESSED 0xDEADDEAD /* Signature */
} response_t;

+/*
+ * ISP queue - ATIO queue entry definition.
+ */
+typedef struct {
+ uint8_t entry_type; /* Entry type. */
+ uint8_t entry_count; /* Entry count. */
+ uint8_t data[58];
+ uint32_t signature;
+#define ATIO_PROCESSED 0xDEADDEAD /* Signature */
+} atio_t;
+
typedef union {
uint16_t extended;
struct {
@@ -1709,6 +1726,9 @@ typedef struct fc_port {

uint16_t vp_idx;
uint8_t fc4_type;
+
+ /* True, if confirmed completion is supported */
+ uint8_t conf_compl_supported:1;
} fc_port_t;

/*
@@ -2826,12 +2846,44 @@ struct qla_hw_data {

uint8_t fw_type;
__le32 file_prd_off; /* File firmware product offset */
-
uint32_t md_template_size;
void *md_tmplt_hdr;
- dma_addr_t md_tmplt_hdr_dma;
- void *md_dump;
+ dma_addr_t md_tmplt_hdr_dma;
+ void *md_dump;
uint32_t md_dump_size;
+
+ /* Protected by hw lock */
+ uint32_t enable_class_2:1;
+ uint32_t enable_explicit_conf:1;
+ uint32_t host_shutting_down:1;
+ uint32_t ini_mode_force_reverse:1;
+ uint32_t node_name_set:1;
+
+ dma_addr_t atio_dma; /* Physical address. */
+ atio_t *atio_ring; /* Base virtual address */
+ atio_t *atio_ring_ptr; /* Current address. */
+ uint16_t atio_ring_index; /* Current index. */
+ uint16_t atio_q_length;
+
+ void *target_lport_ptr;
+ struct qla_tgt_func_tmpl *tgt_ops;
+ struct qla_tgt *qla_tgt;
+ struct qla_tgt_cmd *cmds[MAX_OUTSTANDING_COMMANDS];
+ uint16_t current_handle;
+
+ struct qla_tgt_vp_map *tgt_vp_map;
+ struct mutex tgt_mutex;
+ struct mutex tgt_host_action_mutex;
+
+ int saved_set;
+ uint16_t saved_exchange_count;
+ uint32_t saved_firmware_options_1;
+ uint32_t saved_firmware_options_2;
+ uint32_t saved_firmware_options_3;
+ uint8_t saved_firmware_options[2];
+ uint8_t saved_add_firmware_options[2];
+
+ uint8_t tgt_node_name[WWN_SIZE];
};

/*
@@ -2958,6 +3010,11 @@ typedef struct scsi_qla_host {
atomic_t vref_count;
} scsi_qla_host_t;

+struct qla_tgt_vp_map {
+ uint8_t idx;
+ scsi_qla_host_t *vha;
+};
+
/*
* Macros to help code, maintain, etc.
*/
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 408679b..6989fdd 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -178,6 +178,7 @@ extern int qla2x00_vp_abort_isp(scsi_qla_host_t *);
/*
* Global Function Prototypes in qla_iocb.c source file.
*/
+
extern uint16_t qla2x00_calc_iocbs_32(uint16_t);
extern uint16_t qla2x00_calc_iocbs_64(uint16_t);
extern void qla2x00_build_scsi_iocbs_32(srb_t *, cmd_entry_t *, uint16_t);
@@ -191,6 +192,8 @@ extern uint16_t qla24xx_calc_iocbs(scsi_qla_host_t *, uint16_t);
extern void qla24xx_build_scsi_iocbs(srb_t *, struct cmd_type_7 *, uint16_t);
extern int qla24xx_dif_start_scsi(srb_t *);

+extern void *qla2x00_alloc_iocbs(scsi_qla_host_t *, srb_t *);
+extern int qla2x00_issue_marker(scsi_qla_host_t *, int);

/*
* Global Function Prototypes in qla_mbx.c source file.
@@ -243,6 +246,9 @@ extern int
qla2x00_init_firmware(scsi_qla_host_t *, uint16_t);

extern int
+qla2x00_get_node_name_list(scsi_qla_host_t *, void **, int *);
+
+extern int
qla2x00_get_port_database(scsi_qla_host_t *, fc_port_t *, uint8_t);

extern int
@@ -541,6 +547,7 @@ extern int qla82xx_restart_isp(scsi_qla_host_t *);

/* IOCB related functions */
extern int qla82xx_start_scsi(srb_t *);
+extern void qla2x00_start_iocbs(struct scsi_qla_host *, struct req_que *);

/* Interrupt related */
extern irqreturn_t qla82xx_intr_handler(int, void *);
diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c
index 4aea4ae..006fc0b 100644
--- a/drivers/scsi/qla2xxx/qla_gs.c
+++ b/drivers/scsi/qla2xxx/qla_gs.c
@@ -5,6 +5,7 @@
* See LICENSE.qla2xxx for copyright and licensing details.
*/
#include "qla_def.h"
+#include "qla_target.h"

static int qla2x00_sns_ga_nxt(scsi_qla_host_t *, fc_port_t *);
static int qla2x00_sns_gid_pt(scsi_qla_host_t *, sw_info_t *);
@@ -545,7 +546,8 @@ qla2x00_rff_id(scsi_qla_host_t *vha)
ct_req->req.rff_id.port_id[1] = vha->d_id.b.area;
ct_req->req.rff_id.port_id[2] = vha->d_id.b.al_pa;

- ct_req->req.rff_id.fc4_feature = BIT_1;
+ qla_tgt_rff_id(vha, ct_req);
+
ct_req->req.rff_id.fc4_type = 0x08; /* SCSI - FCP */

/* Execute MS IOCB */
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 1fa067e..6ab7a8e 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -17,6 +17,9 @@
#include <asm/prom.h>
#endif

+#include <target/target_core_base.h>
+#include "qla_target.h"
+
/*
* QLogic ISP2x00 Hardware Support Function Prototypes.
*/
@@ -572,7 +575,10 @@ qla2x00_initialize_adapter(scsi_qla_host_t *vha)
return QLA_FUNCTION_FAILED;
}
}
- rval = qla2x00_init_rings(vha);
+
+ if (qla_ini_mode_enabled(vha))
+ rval = qla2x00_init_rings(vha);
+
ha->flags.chip_reset_done = 1;

if (rval == QLA_SUCCESS && IS_QLA84XX(ha)) {
@@ -1736,6 +1742,12 @@ qla24xx_config_rings(struct scsi_qla_host *vha)
icb->response_q_address[0] = cpu_to_le32(LSD(rsp->dma));
icb->response_q_address[1] = cpu_to_le32(MSD(rsp->dma));

+ /* Setup ATIO queue dma pointers for target mode */
+ icb->atio_q_inpointer = __constant_cpu_to_le16(0);
+ icb->atio_q_length = cpu_to_le16(ha->atio_q_length);
+ icb->atio_q_address[0] = cpu_to_le32(LSD(ha->atio_dma));
+ icb->atio_q_address[1] = cpu_to_le32(MSD(ha->atio_dma));
+
if (ha->mqenable) {
icb->qos = __constant_cpu_to_le16(QLA_DEFAULT_QUE_QOS);
icb->rid = __constant_cpu_to_le16(rid);
@@ -1778,6 +1790,8 @@ qla24xx_config_rings(struct scsi_qla_host *vha)
WRT_REG_DWORD(&reg->isp24.rsp_q_in, 0);
WRT_REG_DWORD(&reg->isp24.rsp_q_out, 0);
}
+ qla_tgt_24xx_config_rings(vha, reg);
+
/* PCI posting */
RD_REG_DWORD(&ioreg->hccr);
}
@@ -1839,6 +1853,11 @@ qla2x00_init_rings(scsi_qla_host_t *vha)

spin_unlock(&ha->vport_slock);

+ ha->atio_ring_ptr = ha->atio_ring;
+ ha->atio_ring_index = 0;
+ /* Initialize ATIO queue entries */
+ qla_tgt_init_atio_q_entries(vha);
+
ha->isp_ops->config_rings(vha);

spin_unlock_irqrestore(&ha->hardware_lock, flags);
@@ -2096,6 +2115,8 @@ qla2x00_configure_hba(scsi_qla_host_t *vha)
vha->d_id.b.area = area;
vha->d_id.b.al_pa = al_pa;

+ ha->tgt_vp_map[al_pa].idx = vha->vp_idx;
+
if (!vha->flags.init_done)
ql_log(ql_log_info, vha, 0x2010,
"Topology - %s, Host Loop address 0x%x.\n",
@@ -2307,15 +2328,23 @@ qla2x00_nvram_config(scsi_qla_host_t *vha)
/*
* Setup driver NVRAM options.
*/
+ /* Enable ADISC and fairness */
nv->firmware_options[0] |= (BIT_6 | BIT_1);
nv->firmware_options[0] &= ~(BIT_5 | BIT_4);
nv->firmware_options[1] |= (BIT_5 | BIT_0);
+ /* Enable PDB changed AE */
+ nv->firmware_options[1] |= BIT_0;
+ /* Stop Port Queue on Full Status */
nv->firmware_options[1] &= ~BIT_4;

if (IS_QLA23XX(ha)) {
+ /* Enable full duplex */
nv->firmware_options[0] |= BIT_2;
+ /* Disable Fast Status Posting */
nv->firmware_options[0] &= ~BIT_3;
- nv->firmware_options[0] &= ~BIT_6;
+ /* out-of-order frames rassembly */
+ nv->special_options[0] |= BIT_6;
+ /* P2P preferred, otherwise loop */
nv->add_firmware_options[1] |= BIT_5 | BIT_4;

if (IS_QLA2300(ha)) {
@@ -2329,6 +2358,7 @@ qla2x00_nvram_config(scsi_qla_host_t *vha)
sizeof(nv->model_number), "QLA23xx");
}
} else if (IS_QLA2200(ha)) {
+ /* Enable full duplex */
nv->firmware_options[0] |= BIT_2;
/*
* 'Point-to-point preferred, else loop' is not a safe
@@ -2360,8 +2390,8 @@ qla2x00_nvram_config(scsi_qla_host_t *vha)
while (cnt--)
*dptr1++ = *dptr2++;

- /* Use alternate WWN? */
if (nv->host_p[1] & BIT_7) {
+ /* Use alternate WWN? */
memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
}
@@ -2512,14 +2542,21 @@ qla2x00_rport_del(void *data)
{
fc_port_t *fcport = data;
struct fc_rport *rport;
+ scsi_qla_host_t *vha = fcport->vha;
unsigned long flags;

spin_lock_irqsave(fcport->vha->host->host_lock, flags);
rport = fcport->drport ? fcport->drport: fcport->rport;
fcport->drport = NULL;
spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
- if (rport)
+ if (rport) {
fc_remote_port_delete(rport);
+ /*
+ * Release the target mode FC NEXUS in qla_target.c code
+ * if target mod is enabled.
+ */
+ qla_tgt_fc_port_deleted(vha, fcport);
+ }
}

/**
@@ -2915,6 +2952,12 @@ qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
"Unable to allocate fc remote port.\n");
return;
}
+ /*
+ * Create target mode FC NEXUS in qla_target.c if target mode is
+ * enabled..
+ */
+ qla_tgt_fc_port_added(vha, fcport);
+
spin_lock_irqsave(fcport->vha->host->host_lock, flags);
*((fc_port_t **)rport->dd_data) = fcport;
spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
@@ -3580,11 +3623,13 @@ qla2x00_device_resync(scsi_qla_host_t *vha)
continue;

if (atomic_read(&fcport->state) == FCS_ONLINE) {
- if (format != 3 ||
- fcport->port_type != FCT_INITIATOR) {
+ if (vha->hw->tgt_ops != NULL)
qla2x00_mark_device_lost(vha, fcport,
- 0, 0);
- }
+ 0, 0);
+ else if ((format != 3) ||
+ (fcport->port_type != FCT_INITIATOR))
+ qla2x00_mark_device_lost(vha, fcport,
+ 0, 0);
}
}
}
@@ -3734,6 +3779,13 @@ qla2x00_fabric_login(scsi_qla_host_t *vha, fc_port_t *fcport,
if (mb[10] & BIT_1)
fcport->supported_classes |= FC_COS_CLASS3;

+ if (IS_FWI2_CAPABLE(ha)) {
+ if (mb[10] & BIT_7)
+ fcport->conf_compl_supported = 1;
+ } else {
+ /* mb[10] bits are undocumented, ToDo */
+ }
+
rval = QLA_SUCCESS;
break;
} else if (mb[0] == MBS_LOOP_ID_USED) {
@@ -4212,6 +4264,7 @@ qla2x00_restart_isp(scsi_qla_host_t *vha)
struct qla_hw_data *ha = vha->hw;
struct req_que *req = ha->req_q_map[0];
struct rsp_que *rsp = ha->rsp_q_map[0];
+ unsigned long flags;

/* If firmware needs to be loaded */
if (qla2x00_isp_firmware(vha)) {
@@ -4236,6 +4289,16 @@ qla2x00_restart_isp(scsi_qla_host_t *vha)
qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL);

vha->flags.online = 1;
+
+ /*
+ * Process any ATIO queue entries that came in
+ * while we weren't online.
+ */
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ if (qla_tgt_mode_enabled(vha))
+ qla_tgt_24xx_process_atio_queue(vha);
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
/* Wait at most MAX_TARGET RSCNs for a stable link. */
wait_time = 256;
do {
@@ -4476,6 +4539,15 @@ qla24xx_nvram_config(scsi_qla_host_t *vha)
rval = 1;
}

+ if (!qla_ini_mode_enabled(vha)) {
+ /* Don't enable full login after initial LIP */
+ nv->firmware_options_1 &= __constant_cpu_to_le32(~BIT_13);
+ /* Don't enable LIP full login for initiator */
+ nv->host_p &= __constant_cpu_to_le32(~BIT_10);
+ }
+
+ qla_tgt_24xx_config_nvram_stage1(vha, nv);
+
/* Reset Initialization control block */
memset(icb, 0, ha->init_cb_size);

@@ -4503,8 +4575,10 @@ qla24xx_nvram_config(scsi_qla_host_t *vha)
qla2x00_set_model_info(vha, nv->model_name, sizeof(nv->model_name),
"QLA2462");

- /* Use alternate WWN? */
+ qla_tgt_24xx_config_nvram_stage2(vha, icb);
+
if (nv->host_p & __constant_cpu_to_le32(BIT_15)) {
+ /* Use alternate WWN? */
memcpy(icb->node_name, nv->alternate_node_name, WWN_SIZE);
memcpy(icb->port_name, nv->alternate_port_name, WWN_SIZE);
}
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index 55a9676..422c9b7 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -5,6 +5,7 @@
* See LICENSE.qla2xxx for copyright and licensing details.
*/
#include "qla_def.h"
+#include "qla_target.h"

#include <linux/blkdev.h>
#include <linux/delay.h>
@@ -468,7 +469,7 @@ queuing_error:
/**
* qla2x00_start_iocbs() - Execute the IOCB command
*/
-static void
+void
qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req)
{
struct qla_hw_data *ha = vha->hw;
@@ -570,6 +571,104 @@ qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req,
return (ret);
}

+/*
+ * qla2x00_issue_marker
+ *
+ * Issue marker
+ * Caller CAN have hardware lock held as specified by ha_locked parameter.
+ * Might release it, then reaquire.
+ */
+int qla2x00_issue_marker(scsi_qla_host_t *vha, int ha_locked)
+{
+ if (ha_locked) {
+ if (__qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0,
+ MK_SYNC_ALL) != QLA_SUCCESS)
+ return QLA_FUNCTION_FAILED;
+ } else {
+ if (qla2x00_marker(vha, vha->req, vha->req->rsp, 0, 0,
+ MK_SYNC_ALL) != QLA_SUCCESS)
+ return QLA_FUNCTION_FAILED;
+ }
+ vha->marker_needed = 0;
+
+ return QLA_SUCCESS;
+}
+
+/**
+ * qla2x00_req_pkt() - Retrieve a request packet from the request ring.
+ * @ha: HA context
+ *
+ * Note: The caller must hold the hardware lock before calling this routine.
+ * Might release it, then reaquire.
+ *
+ * Returns NULL if function failed, else, a pointer to the request packet.
+ */
+request_t *
+qla2x00_req_pkt(scsi_qla_host_t *vha)
+{
+ struct qla_hw_data *ha = vha->hw;
+ device_reg_t __iomem *reg = ha->iobase;
+ request_t *pkt = NULL;
+ uint32_t *dword_ptr, timer;
+ uint16_t req_cnt = 1, cnt;
+
+ /* Wait 1 second for slot. */
+ for (timer = HZ; timer; timer--) {
+ if ((req_cnt + 2) >= vha->req->cnt) {
+ /* Calculate number of free request entries. */
+ if (IS_FWI2_CAPABLE(ha))
+ cnt = (uint16_t)RD_REG_DWORD(&reg->isp24.req_q_out);
+ else
+ cnt = qla2x00_debounce_register(
+ ISP_REQ_Q_OUT(ha, &reg->isp));
+
+ if (vha->req->ring_index < cnt)
+ vha->req->cnt = cnt - vha->req->ring_index;
+ else
+ vha->req->cnt = vha->req->length -
+ (vha->req->ring_index - cnt);
+ }
+
+ /* If room for request in request ring. */
+ if ((req_cnt + 2) < vha->req->cnt) {
+ vha->req->cnt--;
+ pkt = vha->req->ring_ptr;
+
+ /* Zero out packet. */
+ dword_ptr = (uint32_t *)pkt;
+ for (cnt = 0; cnt < REQUEST_ENTRY_SIZE / 4; cnt++)
+ *dword_ptr++ = 0;
+
+ /* Set system defined field. */
+ pkt->sys_define = (uint8_t)vha->req->ring_index;
+
+ /* Set entry count. */
+ pkt->entry_count = 1;
+
+ return pkt;
+ }
+
+ /* Release ring specific lock */
+ spin_unlock_irq(&ha->hardware_lock);
+
+ /* 2 us */
+ udelay(2);
+ /*
+ * Check for pending interrupts, during init we issue marker directly
+ */
+ if (!vha->marker_needed && !vha->flags.init_done)
+ qla2x00_poll(vha->req->rsp);
+
+ /* Reaquire ring specific lock */
+ spin_lock_irq(&ha->hardware_lock);
+ }
+
+ printk(KERN_INFO "Unable to locate request_t *pkt in ring\n");
+ dump_stack();
+
+ return NULL;
+}
+
/**
* qla24xx_calc_iocbs() - Determine number of Command Type 3 and
* Continuation Type 1 IOCBs to allocate.
@@ -1885,6 +1984,7 @@ skip_cmd_array:
queuing_error:
return pkt;
}
+EXPORT_SYMBOL(qla2x00_alloc_iocbs);

static void
qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio)
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 349843e..6654be2 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -5,6 +5,7 @@
* See LICENSE.qla2xxx for copyright and licensing details.
*/
#include "qla_def.h"
+#include "qla_target.h"

#include <linux/delay.h>
#include <linux/slab.h>
@@ -214,6 +215,12 @@ qla2300_intr_handler(int irq, void *dev_id)
mb[2] = RD_MAILBOX_REG(ha, reg, 2);
qla2x00_async_event(vha, rsp, mb);
break;
+ case 0x17: /* FAST_CTIO_COMP */
+ mb[0] = MBA_CTIO_COMPLETION;
+ mb[1] = MSW(stat);
+ mb[2] = RD_MAILBOX_REG(ha, reg, 2);
+ qla2x00_async_event(vha, rsp, mb);
+ break;
default:
ql_dbg(ql_dbg_async, vha, 0x5028,
"Unrecognized interrupt type (%d).\n", stat & 0xff);
@@ -336,6 +343,7 @@ qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
if (IS_QLA8XXX_TYPE(ha))
goto skip_rio;
switch (mb[0]) {
+ case MBA_CTIO_COMPLETION:
case MBA_SCSI_COMPLETION:
handles[0] = le32_to_cpu((uint32_t)((mb[2] << 16) | mb[1]));
handle_cnt = 1;
@@ -397,6 +405,10 @@ skip_rio:
handles[cnt]);
break;

+ case MBA_CTIO_COMPLETION:
+ qla_tgt_ctio_completion(vha, handles[0]);
+ break;
+
case MBA_RESET: /* Reset */
ql_dbg(ql_dbg_async, vha, 0x5002,
"Asynchronous RESET.\n");
@@ -452,8 +464,10 @@ skip_rio:
case MBA_WAKEUP_THRES: /* Request Queue Wake-up */
ql_dbg(ql_dbg_async, vha, 0x5008,
"Asynchronous WAKEUP_THRES.\n");
- break;

+ if (qla_tgt_mode_enabled(vha))
+ set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
+ break;
case MBA_LIP_OCCURRED: /* Loop Initialization Procedure */
ql_dbg(ql_dbg_async, vha, 0x5009,
"LIP occurred (%x).\n", mb[1]);
@@ -667,6 +681,8 @@ skip_rio:
ql_dbg(ql_dbg_async, vha, 0x5011,
"Asynchronous PORT UPDATE ignored %04x/%04x/%04x.\n",
mb[1], mb[2], mb[3]);
+
+ qla_tgt_async_event(mb[0], vha, mb);
break;
}

@@ -685,6 +701,8 @@ skip_rio:

set_bit(LOOP_RESYNC_NEEDED, &vha->dpc_flags);
set_bit(LOCAL_LOOP_UPDATE, &vha->dpc_flags);
+
+ qla_tgt_async_event(mb[0], vha, mb);
break;

case MBA_RSCN_UPDATE: /* State Change Registration */
@@ -811,6 +829,8 @@ skip_rio:
break;
}

+ qla_tgt_async_event(mb[0], vha, mb);
+
if (!vha->vp_idx && ha->num_vhosts)
qla2x00_alert_all_vps(rsp, mb);
}
@@ -827,6 +847,11 @@ qla2x00_process_completed_request(struct scsi_qla_host *vha,
srb_t *sp;
struct qla_hw_data *ha = vha->hw;

+ if (HANDLE_IS_CTIO_COMP(index)) {
+ qla_tgt_ctio_completion(vha, index);
+ return;
+ }
+
/* Validate handle. */
if (index >= MAX_OUTSTANDING_COMMANDS) {
ql_log(ql_log_warn, vha, 0x3014,
@@ -1345,6 +1370,13 @@ qla2x00_process_response_queue(struct rsp_que *rsp)
}

switch (pkt->entry_type) {
+ case ACCEPT_TGT_IO_TYPE:
+ case CONTINUE_TGT_IO_TYPE:
+ case CTIO_A64_TYPE:
+ case IMMED_NOTIFY_TYPE:
+ case NOTIFY_ACK_TYPE:
+ qla_tgt_response_pkt_all_vps(vha, (response_t *)pkt);
+ break;
case STATUS_TYPE:
qla2x00_status_entry(vha, rsp, pkt);
break;
@@ -1952,8 +1984,9 @@ qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
srb_t *sp;
struct qla_hw_data *ha = vha->hw;
const char func[] = "ERROR-IOCB";
+ uint32_t handle = LSW(pkt->handle);
uint16_t que = MSW(pkt->handle);
- struct req_que *req = ha->req_q_map[que];
+ struct req_que *req;

if (pkt->entry_status & RF_INV_E_ORDER)
ql_dbg(ql_dbg_async, vha, 0x502a,
@@ -1974,6 +2007,21 @@ qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
ql_dbg(ql_dbg_async, vha, 0x502f,
"UNKNOWN flag error.\n");

+ if (que >= ha->max_req_queues) {
+ /* Target command with high bits of handle set */
+ printk(KERN_ERR "%s: error entry, type 0x%0x status 0x%x\n",
+ __func__, pkt->entry_type, pkt->entry_status);
+ return;
+ }
+
+ req = ha->req_q_map[que];
+
+ /* Validate handle. */
+ if (handle < MAX_OUTSTANDING_COMMANDS)
+ sp = req->outstanding_cmds[handle];
+ else
+ sp = NULL;
+
sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
if (sp) {
if (qla2x00_free_sp_ctx(vha, sp)) {
@@ -2036,6 +2084,16 @@ qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
mboxes >>= 1;
wptr++;
}
+
+#if defined(QL_DEBUG_LEVEL_1)
+ printk(KERN_INFO "scsi(%ld): Mailbox registers:", vha->host_no);
+ for (cnt = 0; cnt < vha->mbx_count; cnt++) {
+ if ((cnt % 4) == 0)
+ printk(KERN_CONT "\n");
+ printk("mbox %02d: 0x%04x ", cnt, ha->mailbox_out[cnt]);
+ }
+ printk(KERN_CONT "\n");
+#endif
}

/**
@@ -2064,6 +2122,10 @@ void qla24xx_process_response_queue(struct scsi_qla_host *vha,

if (pkt->entry_status != 0) {
qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
+
+ if (qla_tgt_24xx_process_response_error(vha, pkt) == 1)
+ break;
+
((response_t *)pkt)->signature = RESPONSE_PROCESSED;
wmb();
continue;
@@ -2094,6 +2156,13 @@ void qla24xx_process_response_queue(struct scsi_qla_host *vha,
case ELS_IOCB_TYPE:
qla24xx_els_ct_entry(vha, rsp->req, pkt, ELS_IOCB_TYPE);
break;
+ case ABTS_RECV_24XX:
+ /* ensure that the ATIO queue is empty */
+ qla_tgt_24xx_process_atio_queue(vha);
+ case ABTS_RESP_24XX:
+ case CTIO_TYPE7:
+ case NOTIFY_ACK_TYPE:
+ qla_tgt_response_pkt_all_vps(vha, (response_t *)pkt);
case MARKER_TYPE:
/* Do nothing in this case, this check is to prevent it
* from falling into default case
@@ -2246,6 +2315,13 @@ qla24xx_intr_handler(int irq, void *dev_id)
case 0x14:
qla24xx_process_response_queue(vha, rsp);
break;
+ case 0x1C: /* ATIO queue updated */
+ qla_tgt_24xx_process_atio_queue(vha);
+ break;
+ case 0x1D: /* ATIO and response queues updated */
+ qla_tgt_24xx_process_atio_queue(vha);
+ qla24xx_process_response_queue(vha, rsp);
+ break;
default:
ql_dbg(ql_dbg_async, vha, 0x504f,
"Unrecognized interrupt type (%d).\n", stat * 0xff);
@@ -2390,6 +2466,13 @@ qla24xx_msix_default(int irq, void *dev_id)
case 0x14:
qla24xx_process_response_queue(vha, rsp);
break;
+ case 0x1C: /* ATIO queue updated */
+ qla_tgt_24xx_process_atio_queue(vha);
+ break;
+ case 0x1D: /* ATIO and response queues updated */
+ qla_tgt_24xx_process_atio_queue(vha);
+ qla24xx_process_response_queue(vha, rsp);
+ break;
default:
ql_dbg(ql_dbg_async, vha, 0x5051,
"Unrecognized interrupt type (%d).\n", stat & 0xff);
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 08f1d01..7b38a66 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -5,6 +5,7 @@
* See LICENSE.qla2xxx for copyright and licensing details.
*/
#include "qla_def.h"
+#include "qla_target.h"

#include <linux/delay.h>
#include <linux/gfp.h>
@@ -1191,6 +1192,93 @@ qla2x00_init_firmware(scsi_qla_host_t *vha, uint16_t size)
}

/*
+ * qla2x00_get_node_name_list
+ * Issue get node name list mailbox command, kmalloc()
+ * and return the resulting list. Caller must kfree() it!
+ *
+ * Input:
+ * ha = adapter state pointer.
+ * out_data = resulting list
+ * out_len = length of the resulting list
+ *
+ * Returns:
+ * qla2x00 local function return status code.
+ *
+ * Context:
+ * Kernel context.
+ */
+int
+qla2x00_get_node_name_list(scsi_qla_host_t *vha, void **out_data, int *out_len)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_port_24xx_data *list = NULL;
+ void *pmap;
+ mbx_cmd_t mc;
+ dma_addr_t pmap_dma;
+ ulong dma_size;
+ int rval, left;
+
+ left = 1;
+ while (left > 0) {
+ dma_size = left * sizeof(*list);
+ pmap = dma_alloc_coherent(&ha->pdev->dev, dma_size,
+ &pmap_dma, GFP_KERNEL);
+ if (!pmap) {
+ printk(KERN_ERR "%s(%ld): DMA Alloc failed of "
+ "%ld\n", __func__, vha->host_no, dma_size);
+ rval = QLA_MEMORY_ALLOC_FAILED;
+ goto out;
+ }
+
+ mc.mb[0] = MBC_PORT_NODE_NAME_LIST;
+ mc.mb[1] = BIT_1 | BIT_3;
+ mc.mb[2] = MSW(pmap_dma);
+ mc.mb[3] = LSW(pmap_dma);
+ mc.mb[6] = MSW(MSD(pmap_dma));
+ mc.mb[7] = LSW(MSD(pmap_dma));
+ mc.mb[8] = dma_size;
+ mc.out_mb = MBX_0|MBX_1|MBX_2|MBX_3|MBX_6|MBX_7|MBX_8;
+ mc.in_mb = MBX_0|MBX_1;
+ mc.tov = 30;
+ mc.flags = MBX_DMA_IN;
+
+ rval = qla2x00_mailbox_command(vha, &mc);
+ if (rval != QLA_SUCCESS) {
+ if ((mc.mb[0] == MBS_COMMAND_ERROR) &&
+ (mc.mb[1] == 0xA)) {
+ left += le16_to_cpu(mc.mb[2]) / sizeof(struct qla_port_24xx_data);
+ goto restart;
+ }
+ goto out_free;
+ }
+
+ left = 0;
+
+ list = kzalloc(dma_size, GFP_KERNEL);
+ if (!list) {
+ printk(KERN_ERR "%s(%ld): failed to allocate node names"
+ " list structure.\n", __func__, vha->host_no);
+ rval = QLA_MEMORY_ALLOC_FAILED;
+ goto out_free;
+ }
+
+ memcpy(list, pmap, dma_size);
+restart:
+ dma_free_coherent(&ha->pdev->dev, dma_size, pmap, pmap_dma);
+ }
+
+ *out_data = list;
+ *out_len = dma_size;
+
+out:
+ return rval;
+
+out_free:
+ dma_free_coherent(&ha->pdev->dev, dma_size, pmap, pmap_dma);
+ return rval;
+}
+
+/*
* qla2x00_get_port_database
* Issue normal/enhanced get port database mailbox command
* and copy device name as necessary.
@@ -1284,10 +1372,17 @@ qla2x00_get_port_database(scsi_qla_host_t *vha, fc_port_t *fcport, uint8_t opt)
fcport->d_id.b.rsvd_1 = 0;

/* If not target must be initiator or unknown type. */
- if ((pd24->prli_svc_param_word_3[0] & BIT_4) == 0)
- fcport->port_type = FCT_INITIATOR;
- else
+ if ((pd24->prli_svc_param_word_3[0] & BIT_4))
fcport->port_type = FCT_TARGET;
+ else if ((pd24->prli_svc_param_word_3[0] & BIT_5))
+ fcport->port_type = FCT_INITIATOR;
+
+ /* Passback COS information. */
+ fcport->supported_classes = (pd24->flags & PDF_CLASS_2) ?
+ FC_COS_CLASS2 : FC_COS_CLASS3;
+
+ if (pd24->prli_svc_param_word_3[0] & BIT_7)
+ fcport->conf_compl_supported = 1;
} else {
/* Check for logged in state. */
if (pd->master_state != PD_STATE_PORT_LOGGED_IN &&
@@ -1312,14 +1407,17 @@ qla2x00_get_port_database(scsi_qla_host_t *vha, fc_port_t *fcport, uint8_t opt)
fcport->d_id.b.rsvd_1 = 0;

/* If not target must be initiator or unknown type. */
- if ((pd->prli_svc_param_word_3[0] & BIT_4) == 0)
- fcport->port_type = FCT_INITIATOR;
- else
+ if ((pd24->prli_svc_param_word_3[0] & BIT_4))
fcport->port_type = FCT_TARGET;
+ else if ((pd24->prli_svc_param_word_3[0] & BIT_5))
+ fcport->port_type = FCT_INITIATOR;

/* Passback COS information. */
fcport->supported_classes = (pd->options & BIT_4) ?
FC_COS_CLASS2: FC_COS_CLASS3;
+
+ if (pd->prli_svc_param_word_3[0] & BIT_7)
+ fcport->conf_compl_supported = 1;
}

gpd_error_out:
@@ -1335,6 +1433,7 @@ gpd_error_out:

return rval;
}
+EXPORT_SYMBOL(qla2x00_get_port_database);

/*
* qla2x00_get_firmware_state
@@ -1684,6 +1783,8 @@ qla24xx_login_fabric(scsi_qla_host_t *vha, uint16_t loop_id, uint8_t domain,
mb[10] |= BIT_0; /* Class 2. */
if (lg->io_parameter[9] || lg->io_parameter[10])
mb[10] |= BIT_1; /* Class 3. */
+ if (lg->io_parameter[0] & __constant_cpu_to_le32(BIT_7))
+ mb[10] |= BIT_7; /* Confirmed Completion Allowed */
}

dma_pool_free(ha->s_dma_pool, lg, lg_dma);
@@ -2965,6 +3066,9 @@ qla24xx_modify_vp_config(scsi_qla_host_t *vha)
vpmod->vp_count = 1;
vpmod->vp_index1 = vha->vp_idx;
vpmod->options_idx1 = BIT_3|BIT_4|BIT_5;
+
+ qla_tgt_modify_vp_config(vha, vpmod);
+
memcpy(vpmod->node_name_idx1, vha->node_name, WWN_SIZE);
memcpy(vpmod->port_name_idx1, vha->port_name, WWN_SIZE);
vpmod->entry_count = 1;
diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c
index f488cc6..2d1e5b6 100644
--- a/drivers/scsi/qla2xxx/qla_mid.c
+++ b/drivers/scsi/qla2xxx/qla_mid.c
@@ -6,6 +6,7 @@
*/
#include "qla_def.h"
#include "qla_gbl.h"
+#include "qla_target.h"

#include <linux/moduleparam.h>
#include <linux/vmalloc.h>
@@ -49,6 +50,7 @@ qla24xx_allocate_vp_id(scsi_qla_host_t *vha)

spin_lock_irqsave(&ha->vport_slock, flags);
list_add_tail(&vha->list, &ha->vp_list);
+ ha->tgt_vp_map[vp_id].vha = vha;
spin_unlock_irqrestore(&ha->vport_slock, flags);

mutex_unlock(&ha->vport_lock);
@@ -79,6 +81,7 @@ qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
spin_lock_irqsave(&ha->vport_slock, flags);
}
list_del(&vha->list);
+ ha->tgt_vp_map[vha->vp_idx].vha = NULL;
spin_unlock_irqrestore(&ha->vport_slock, flags);

vp_id = vha->vp_idx;
@@ -144,12 +147,16 @@ qla2x00_mark_vp_devices_dead(scsi_qla_host_t *vha)
int
qla24xx_disable_vp(scsi_qla_host_t *vha)
{
+ struct qla_hw_data *ha = vha->hw;
int ret;

ret = qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);
atomic_set(&vha->loop_state, LOOP_DOWN);
atomic_set(&vha->loop_down_timer, LOOP_DOWN_TIME);

+ /* Remove port id from vp target map */
+ ha->tgt_vp_map[vha->d_id.b.al_pa].idx = 0;
+
qla2x00_mark_vp_devices_dead(vha);
atomic_set(&vha->vp_state, VP_FAILED);
vha->flags.management_server_logged_in = 0;
@@ -267,6 +274,8 @@ qla2x00_alert_all_vps(struct rsp_que *rsp, uint16_t *mb)
int
qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
{
+ int ret;
+
/*
* Physical port will do most of the abort and recovery work. We can
* just treat it as a loop down
@@ -288,8 +297,12 @@ qla2x00_vp_abort_isp(scsi_qla_host_t *vha)
qla24xx_control_vp(vha, VCE_COMMAND_DISABLE_VPS_LOGO_ALL);

ql_dbg(ql_dbg_taskm, vha, 0x801d,
- "Scheduling enable of Vport %d.\n", vha->vp_idx);
- return qla24xx_enable_vp(vha);
+ "Scheduling enable of Vport %d.\n", vha->vp_idx);
+ ret = qla24xx_enable_vp(vha);
+ if (ret)
+ return ret;
+
+ return 0;
}

static int
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 036030c..f6c86a9 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -4,8 +4,6 @@
*
* See LICENSE.qla2xxx for copyright and licensing details.
*/
-#include "qla_def.h"
-
#include <linux/moduleparam.h>
#include <linux/vmalloc.h>
#include <linux/delay.h>
@@ -13,12 +11,15 @@
#include <linux/mutex.h>
#include <linux/kobject.h>
#include <linux/slab.h>
-
+#include <linux/workqueue.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsicam.h>
#include <scsi/scsi_transport.h>
#include <scsi/scsi_transport_fc.h>

+#include "qla_def.h"
+#include "qla_target.h"
+
/*
* Driver version
*/
@@ -40,6 +41,12 @@ static struct kmem_cache *ctx_cachep;
*/
int ql_errlev = ql_log_all;

+int ql2xenableclass2;
+module_param(ql2xenableclass2, int, S_IRUGO|S_IRUSR);
+MODULE_PARM_DESC(ql2xenableclass2,
+ "Specify if Class 2 operations are supported from the very "
+ "beginning.");
+
int ql2xlogintimeout = 20;
module_param(ql2xlogintimeout, int, S_IRUGO);
MODULE_PARM_DESC(ql2xlogintimeout,
@@ -255,6 +262,8 @@ struct scsi_host_template qla2xxx_driver_template = {

.max_sectors = 0xFFFF,
.shost_attrs = qla2x00_host_attrs,
+
+ .supported_mode = MODE_INITIATOR | MODE_TARGET,
};

static struct scsi_transport_template *qla2xxx_transport_template = NULL;
@@ -830,6 +839,38 @@ sp_get(struct srb *sp)
atomic_inc(&sp->ref_count);
}

+void
+qla2xxx_abort_fcport_cmds(fc_port_t *fcport)
+{
+ scsi_qla_host_t *vha = fcport->vha;
+ struct qla_hw_data *ha = vha->hw;
+ srb_t *sp;
+ unsigned long flags;
+ int cnt;
+
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ for (cnt = 1; cnt < MAX_OUTSTANDING_COMMANDS; cnt++) {
+ sp = vha->req->outstanding_cmds[cnt];
+ if (!sp)
+ continue;
+ if (sp->fcport != fcport)
+ continue;
+
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+ if (ha->isp_ops->abort_command(sp)) {
+ ql_dbg(ql_dbg_taskm, vha, 0x8010,
+ "Abort failed -- %lx\n", sp->cmd->serial_number);
+ } else {
+ if (qla2x00_eh_wait_on_command(sp->cmd) != QLA_SUCCESS)
+ ql_dbg(ql_dbg_taskm, vha, 0x8011,
+ "Abort failed while waiting -- %lx\n",
+ sp->cmd->serial_number);
+ }
+ spin_lock_irqsave(&ha->hardware_lock, flags);
+ }
+ spin_unlock_irqrestore(&ha->hardware_lock, flags);
+}
+
/**************************************************************************
* qla2xxx_eh_abort
*
@@ -2009,6 +2050,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
ql_dbg_pci(ql_dbg_init, pdev, 0x000a,
"Memory allocated for ha=%p.\n", ha);
ha->pdev = pdev;
+ ha->enable_class_2 = ql2xenableclass2;

/* Clear our data area */
ha->bars = bars;
@@ -2071,6 +2113,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_24XX;
rsp_length = RESPONSE_ENTRY_CNT_2300;
+ ha->atio_q_length = ATIO_ENTRY_CNT_24XX;
ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
ha->gid_list_info_size = 8;
@@ -2085,6 +2128,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
ha->mbx_count = MAILBOX_REGISTER_COUNT;
req_length = REQUEST_ENTRY_CNT_24XX;
rsp_length = RESPONSE_ENTRY_CNT_2300;
+ ha->atio_q_length = ATIO_ENTRY_CNT_24XX;
ha->max_loop_id = SNS_LAST_LOOP_ID_2300;
ha->init_cb_size = sizeof(struct mid_init_cb_24xx);
ha->gid_list_info_size = 8;
@@ -2225,6 +2269,8 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
host->max_cmd_len, host->max_channel, host->max_lun,
host->transportt, sht->vendor_id);

+ qla_tgt_probe_one_stage1(base_vha, ha);
+
/* Set up the irqs */
ret = qla2x00_request_irqs(ha, rsp);
if (ret)
@@ -2322,6 +2368,14 @@ que_init:
ql_dbg(ql_dbg_init, base_vha, 0x00ee,
"DPC thread started successfully.\n");

+ /*
+ * If we're not coming up in initiator mode, we might sit for
+ * a while without waking up the dpc thread, which leads to a
+ * stuck process warning. So just kick the dpc once here and
+ * let the kthread start (and go back to sleep in qla2x00_do_dpc).
+ */
+ qla2xxx_wake_dpc(base_vha);
+
skip_dpc:
list_add_tail(&base_vha->list, &ha->vp_list);
base_vha->host->irq = ha->pdev->irq;
@@ -2367,7 +2421,11 @@ skip_dpc:
ql_dbg(ql_dbg_init, base_vha, 0x00f2,
"Init done and hba is online.\n");

- scsi_scan_host(host);
+ if (qla_ini_mode_enabled(base_vha))
+ scsi_scan_host(host);
+ else
+ ql_dbg(ql_dbg_init, base_vha, 0x00f3,
+ "skipping scsi_scan_host() for non-initiator port\n");

qla2x00_alloc_sysfs_attr(base_vha);

@@ -2385,6 +2443,8 @@ skip_dpc:
base_vha->host_no,
ha->isp_ops->fw_version_str(base_vha, fw_str));

+ qla_tgt_add_target(ha, base_vha);
+
return 0;

probe_init_failed:
@@ -2465,15 +2525,33 @@ qla2x00_shutdown(struct pci_dev *pdev)
}

static void
+qla2x00_stop_dpc_thread(scsi_qla_host_t *vha)
+{
+ struct qla_hw_data *ha = vha->hw;
+ struct task_struct *t = ha->dpc_thread;
+
+ if (ha->dpc_thread == NULL)
+ return;
+ /*
+ * qla2xxx_wake_dpc checks for ->dpc_thread
+ * so we need to zero it out.
+ */
+ ha->dpc_thread = NULL;
+ kthread_stop(t);
+}
+
+static void
qla2x00_remove_one(struct pci_dev *pdev)
{
scsi_qla_host_t *base_vha, *vha;
- struct qla_hw_data *ha;
+ struct qla_hw_data *ha;
unsigned long flags;

base_vha = pci_get_drvdata(pdev);
ha = base_vha->hw;

+ ha->host_shutting_down = 1;
+
mutex_lock(&ha->vport_lock);
while (ha->cur_vport_count) {
struct Scsi_Host *scsi_host;
@@ -2527,6 +2605,7 @@ qla2x00_remove_one(struct pci_dev *pdev)
ha->dpc_thread = NULL;
kthread_stop(t);
}
+ qla_tgt_remove_target(ha, base_vha);

qla2x00_free_sysfs_attr(base_vha);

@@ -2575,17 +2654,7 @@ qla2x00_free_device(scsi_qla_host_t *vha)
if (vha->timer_active)
qla2x00_stop_timer(vha);

- /* Kill the kernel thread for this host */
- if (ha->dpc_thread) {
- struct task_struct *t = ha->dpc_thread;
-
- /*
- * qla2xxx_wake_dpc checks for ->dpc_thread
- * so we need to zero it out.
- */
- ha->dpc_thread = NULL;
- kthread_stop(t);
- }
+ qla2x00_stop_dpc_thread(vha);

qla25xx_delete_queues(vha);

@@ -2751,10 +2820,13 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
if (!ha->init_cb)
goto fail;

+ if (qla_tgt_mem_alloc(ha) < 0)
+ goto fail_free_init_cb;
+
ha->gid_list = dma_alloc_coherent(&ha->pdev->dev, GID_LIST_SIZE,
&ha->gid_list_dma, GFP_KERNEL);
if (!ha->gid_list)
- goto fail_free_init_cb;
+ goto fail_free_tgt_mem;

ha->srb_mempool = mempool_create_slab_pool(SRB_MIN_REQ, srb_cachep);
if (!ha->srb_mempool)
@@ -2971,6 +3043,8 @@ fail_free_gid_list:
ha->gid_list_dma);
ha->gid_list = NULL;
ha->gid_list_dma = 0;
+fail_free_tgt_mem:
+ qla_tgt_mem_free(ha);
fail_free_init_cb:
dma_free_coherent(&ha->pdev->dev, ha->init_cb_size, ha->init_cb,
ha->init_cb_dma);
@@ -3089,6 +3163,8 @@ qla2x00_mem_free(struct qla_hw_data *ha)
if (ha->ctx_mempool)
mempool_destroy(ha->ctx_mempool);

+ qla_tgt_mem_free(ha);
+
if (ha->init_cb)
dma_free_coherent(&ha->pdev->dev, ha->init_cb_size,
ha->init_cb, ha->init_cb_dma);
@@ -3117,6 +3193,10 @@ qla2x00_mem_free(struct qla_hw_data *ha)

ha->gid_list = NULL;
ha->gid_list_dma = 0;
+
+ ha->atio_ring = NULL;
+ ha->atio_dma = 0;
+ ha->tgt_vp_map = NULL;
}

struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht,
@@ -4305,6 +4385,21 @@ qla2x00_module_init(void)
return -ENOMEM;
}

+ /* Initialize target kmem_cache and mem_pools */
+ ret = qla_tgt_init();
+ if (ret < 0) {
+ kmem_cache_destroy(srb_cachep);
+ return ret;
+ } else if (ret > 0) {
+ /*
+ * If initiator mode is explictly disabled by qla_tgt_init(),
+ * prevent scsi_transport_fc.c:fc_scsi_scan_rport() from
+ * performing scsi_scan_target() during LOOP UP event.
+ */
+ qla2xxx_transport_functions.disable_target_scan = 1;
+ qla2xxx_transport_vport_functions.disable_target_scan = 1;
+ }
+
/* Derive version string. */
strcpy(qla2x00_version_str, QLA2XXX_VERSION);
if (ql2xextended_error_logging)
@@ -4316,6 +4411,7 @@ qla2x00_module_init(void)
kmem_cache_destroy(srb_cachep);
ql_log(ql_log_fatal, NULL, 0x0002,
"fc_attach_transport failed...Failing load!.\n");
+ qla_tgt_exit();
return -ENODEV;
}

@@ -4329,6 +4425,7 @@ qla2x00_module_init(void)
fc_attach_transport(&qla2xxx_transport_vport_functions);
if (!qla2xxx_transport_vport_template) {
kmem_cache_destroy(srb_cachep);
+ qla_tgt_exit();
fc_release_transport(qla2xxx_transport_template);
ql_log(ql_log_fatal, NULL, 0x0004,
"fc_attach_transport vport failed...Failing load!.\n");
@@ -4340,6 +4437,7 @@ qla2x00_module_init(void)
ret = pci_register_driver(&qla2xxx_pci_driver);
if (ret) {
kmem_cache_destroy(srb_cachep);
+ qla_tgt_exit();
fc_release_transport(qla2xxx_transport_template);
fc_release_transport(qla2xxx_transport_vport_template);
ql_log(ql_log_fatal, NULL, 0x0006,
@@ -4359,6 +4457,7 @@ qla2x00_module_exit(void)
pci_unregister_driver(&qla2xxx_pci_driver);
qla2x00_release_firmware();
kmem_cache_destroy(srb_cachep);
+ qla_tgt_exit();
if (ctx_cachep)
kmem_cache_destroy(ctx_cachep);
fc_release_transport(qla2xxx_transport_template);
--
1.7.2.5

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