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[SCSI] qla2xxx: T10 DIF support added.

Browse source 
Signed-off-by: Duane Grigsby <duane.grigsby@qlogic.com>
Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Arun Easi 2010-05-04 15:01:30 -07:00 committed by James Bottomley
parent 3822263eb1
commit bad7500289
10 changed files with 1053 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
drivers/scsi/qla2xxx/qla_attr.c
View file

@ -1726,6 +1726,22 @@ qla24xx_vport_create(struct fc_vport *fc_vport, bool disable)
fc_vport_set_state(fc_vport, FC_VPORT_LINKDOWN);
}
if (IS_QLA25XX(ha) && ql2xenabledif) {
if (ha->fw_attributes & BIT_4) {
vha->flags.difdix_supported = 1;
DEBUG18(qla_printk(KERN_INFO, ha,
"Registering for DIF/DIX type 1 and 3"
" protection.\n"));
scsi_host_set_prot(vha->host,
SHOST_DIF_TYPE1_PROTECTION
| SHOST_DIF_TYPE3_PROTECTION
| SHOST_DIX_TYPE1_PROTECTION
| SHOST_DIX_TYPE3_PROTECTION);
scsi_host_set_guard(vha->host, SHOST_DIX_GUARD_CRC);
} else
vha->flags.difdix_supported = 0;
}
if (scsi_add_host_with_dma(vha->host, &fc_vport->dev,
&ha->pdev->dev)) {
DEBUG15(printk("scsi(%ld): scsi_add_host failure for VP[%d].\n",

58
drivers/scsi/qla2xxx/qla_dbg.c
View file

@ -1663,4 +1663,62 @@ qla2x00_dump_buffer(uint8_t * b, uint32_t size)
printk("\n");
}
void
qla2x00_dump_buffer_zipped(uint8_t *b, uint32_t size)
{
uint32_t cnt;
uint8_t c;
uint8_t last16[16], cur16[16];
uint32_t lc = 0, num_same16 = 0, j;
printk(KERN_DEBUG " 0 1 2 3 4 5 6 7 8 9 "
"Ah Bh Ch Dh Eh Fh\n");
printk(KERN_DEBUG "----------------------------------------"
"----------------------\n");
for (cnt = 0; cnt < size;) {
c = *b++;
cur16[lc++] = c;
cnt++;
if (cnt % 16)
continue;
/* We have 16 now */
lc = 0;
if (num_same16 == 0) {
memcpy(last16, cur16, 16);
num_same16++;
continue;
}
if (memcmp(cur16, last16, 16) == 0) {
num_same16++;
continue;
}
for (j = 0; j < 16; j++)
printk(KERN_DEBUG "%02x ", (uint32_t)last16[j]);
printk(KERN_DEBUG "\n");
if (num_same16 > 1)
printk(KERN_DEBUG "> prev pattern repeats (%u)"
"more times\n", num_same16-1);
memcpy(last16, cur16, 16);
num_same16 = 1;
}
if (num_same16) {
for (j = 0; j < 16; j++)
printk(KERN_DEBUG "%02x ", (uint32_t)last16[j]);
printk(KERN_DEBUG "\n");
if (num_same16 > 1)
printk(KERN_DEBUG "> prev pattern repeats (%u)"
"more times\n", num_same16-1);
}
if (lc) {
for (j = 0; j < lc; j++)
printk(KERN_DEBUG "%02x ", (uint32_t)cur16[j]);
printk(KERN_DEBUG "\n");
}
}

10
drivers/scsi/qla2xxx/qla_dbg.h
View file

@ -27,6 +27,9 @@
/* #define QL_DEBUG_LEVEL_15 */ /* Output NPIV trace msgs */
/* #define QL_DEBUG_LEVEL_16 */ /* Output ISP84XX trace msgs */
/* #define QL_DEBUG_LEVEL_17 */ /* Output EEH trace messages */
/* #define QL_DEBUG_LEVEL_18 */ /* Output T10 CRC trace messages */
/* #define QL_PRINTK_BUF */ /* Captures printk to buffer */
/*
* Macros use for debugging the driver.
@ -139,6 +142,13 @@
#define DEBUG17(x) do {} while (0)
#endif
#if defined(QL_DEBUG_LEVEL_18)
#define DEBUG18(x) do {if (ql2xextended_error_logging) x; } while (0)
#else
#define DEBUG18(x) do {} while (0)
#endif
/*
* Firmware Dump structure definition
*/

84
drivers/scsi/qla2xxx/qla_def.h
View file

@ -188,6 +188,16 @@
struct req_que;
/*
* (sd.h is not exported, hence local inclusion)
* Data Integrity Field tuple.
*/
struct sd_dif_tuple {
__be16 guard_tag; /* Checksum */
__be16 app_tag; /* Opaque storage */
__be32 ref_tag; /* Target LBA or indirect LBA */
};
/*
* SCSI Request Block
*/
@ -208,8 +218,14 @@ typedef struct srb {
/*
* SRB flag definitions
*/
#define SRB_DMA_VALID BIT_0 /* Command sent to ISP */
#define SRB_FCP_CMND_DMA_VALID BIT_12 /* FCP command in IOCB */
#define SRB_DMA_VALID BIT_0 /* Command sent to ISP */
#define SRB_FCP_CMND_DMA_VALID BIT_12 /* DIF: DSD List valid */
#define SRB_CRC_CTX_DMA_VALID BIT_2 /* DIF: context DMA valid */
#define SRB_CRC_PROT_DMA_VALID BIT_4 /* DIF: prot DMA valid */
#define SRB_CRC_CTX_DSD_VALID BIT_5 /* DIF: dsd_list valid */
/* To identify if a srb is of T10-CRC type. @sp => srb_t pointer */
#define IS_PROT_IO(sp) (sp->flags & SRB_CRC_CTX_DSD_VALID)
/*
* SRB extensions.
@ -1330,6 +1346,66 @@ typedef struct {
uint32_t dseg_4_length; /* Data segment 4 length. */
} cont_a64_entry_t;
#define PO_MODE_DIF_INSERT 0
#define PO_MODE_DIF_REMOVE BIT_0
#define PO_MODE_DIF_PASS BIT_1
#define PO_MODE_DIF_REPLACE (BIT_0 + BIT_1)
#define PO_ENABLE_DIF_BUNDLING BIT_8
#define PO_ENABLE_INCR_GUARD_SEED BIT_3
#define PO_DISABLE_INCR_REF_TAG BIT_5
#define PO_DISABLE_GUARD_CHECK BIT_4
/*
* ISP queue - 64-Bit addressing, continuation crc entry structure definition.
*/
struct crc_context {
uint32_t handle; /* System handle. */
uint32_t ref_tag;
uint16_t app_tag;
uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/
uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/
uint16_t guard_seed; /* Initial Guard Seed */
uint16_t prot_opts; /* Requested Data Protection Mode */
uint16_t blk_size; /* Data size in bytes */
uint16_t runt_blk_guard; /* Guard value for runt block (tape
* only) */
uint32_t byte_count; /* Total byte count/ total data
* transfer count */
union {
struct {
uint32_t reserved_1;
uint16_t reserved_2;
uint16_t reserved_3;
uint32_t reserved_4;
uint32_t data_address[2];
uint32_t data_length;
uint32_t reserved_5[2];
uint32_t reserved_6;
} nobundling;
struct {
uint32_t dif_byte_count; /* Total DIF byte
* count */
uint16_t reserved_1;
uint16_t dseg_count; /* Data segment count */
uint32_t reserved_2;
uint32_t data_address[2];
uint32_t data_length;
uint32_t dif_address[2];
uint32_t dif_length; /* Data segment 0
* length */
} bundling;
} u;
struct fcp_cmnd fcp_cmnd;
dma_addr_t crc_ctx_dma;
/* List of DMA context transfers */
struct list_head dsd_list;
/* This structure should not exceed 512 bytes */
};
#define CRC_CONTEXT_LEN_FW (offsetof(struct crc_context, fcp_cmnd.lun))
#define CRC_CONTEXT_FCPCMND_OFF (offsetof(struct crc_context, fcp_cmnd.lun))
/*
* ISP queue - status entry structure definition.
*/
@ -1390,6 +1466,7 @@ typedef struct {
#define CS_ABORTED 0x5 /* System aborted command. */
#define CS_TIMEOUT 0x6 /* Timeout error. */
#define CS_DATA_OVERRUN 0x7 /* Data overrun. */
#define CS_DIF_ERROR 0xC /* DIF error detected */
#define CS_DATA_UNDERRUN 0x15 /* Data Underrun. */
#define CS_QUEUE_FULL 0x1C /* Queue Full. */
@ -2732,6 +2809,7 @@ typedef struct scsi_qla_host {
uint32_t management_server_logged_in :1;
uint32_t process_response_queue :1;
uint32_t difdix_supported:1;
} flags;
atomic_t loop_state;
@ -2883,6 +2961,8 @@ typedef struct scsi_qla_host {
#define OPTROM_BURST_SIZE 0x1000
#define OPTROM_BURST_DWORDS (OPTROM_BURST_SIZE / 4)
#define QLA_DSDS_PER_IOCB 37
#include "qla_gbl.h"
#include "qla_dbg.h"
#include "qla_inline.h"

47
drivers/scsi/qla2xxx/qla_fw.h
View file

@ -400,6 +400,7 @@ struct cmd_type_6 {
struct scsi_lun lun; /* FCP LUN (BE). */
uint16_t control_flags; /* Control flags. */
#define CF_DIF_SEG_DESCR_ENABLE BIT_3
#define CF_DATA_SEG_DESCR_ENABLE BIT_2
#define CF_READ_DATA BIT_1
#define CF_WRITE_DATA BIT_0
@ -466,6 +467,43 @@ struct cmd_type_7 {
uint32_t dseg_0_len; /* Data segment 0 length. */
};
#define COMMAND_TYPE_CRC_2 0x6A /* Command Type CRC_2 (Type 6)
* (T10-DIF) */
struct cmd_type_crc_2 {
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 handle. */
uint16_t nport_handle; /* N_PORT handle. */
uint16_t timeout; /* Command timeout. */
uint16_t dseg_count; /* Data segment count. */
uint16_t fcp_rsp_dseg_len; /* FCP_RSP DSD length. */
struct scsi_lun lun; /* FCP LUN (BE). */
uint16_t control_flags; /* Control flags. */
uint16_t fcp_cmnd_dseg_len; /* Data segment length. */
uint32_t fcp_cmnd_dseg_address[2]; /* Data segment address. */
uint32_t fcp_rsp_dseg_address[2]; /* Data segment address. */
uint32_t byte_count; /* Total byte count. */
uint8_t port_id[3]; /* PortID of destination port. */
uint8_t vp_index;
uint32_t crc_context_address[2]; /* Data segment address. */
uint16_t crc_context_len; /* Data segment length. */
uint16_t reserved_1; /* MUST be set to 0. */
};
/*
* ISP queue - status entry structure definition.
*/
@ -496,10 +534,17 @@ struct sts_entry_24xx {
uint32_t sense_len; /* FCP SENSE length. */
uint32_t rsp_data_len; /* FCP response data length. */
uint8_t data[28]; /* FCP response/sense information. */
/*
* If DIF Error is set in comp_status, these additional fields are
* defined:
* &data[10] : uint8_t report_runt_bg[2]; - computed guard
* &data[12] : uint8_t actual_dif[8]; - DIF Data recieved
* &data[20] : uint8_t expected_dif[8]; - DIF Data computed
*/
};
/*
* Status entry completion status
*/

4
drivers/scsi/qla2xxx/qla_gbl.h
View file

@ -94,6 +94,8 @@ extern int ql2xshiftctondsd;
extern int ql2xdbwr;
extern int ql2xdontresethba;
extern int ql2xasynctmfenable;
extern int ql2xenabledif;
extern int ql2xenablehba_err_chk;
extern int qla2x00_loop_reset(scsi_qla_host_t *);
extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int);
@ -179,6 +181,7 @@ extern int qla2x00_start_sp(srb_t *);
extern void qla2x00_ctx_sp_free(srb_t *);
extern uint16_t qla24xx_calc_iocbs(uint16_t);
extern void qla24xx_build_scsi_iocbs(srb_t *, struct cmd_type_7 *, uint16_t);
extern int qla24xx_dif_start_scsi(srb_t *);
/*
@ -423,6 +426,7 @@ extern void qla25xx_fw_dump(scsi_qla_host_t *, int);
extern void qla81xx_fw_dump(scsi_qla_host_t *, int);
extern void qla2x00_dump_regs(scsi_qla_host_t *);
extern void qla2x00_dump_buffer(uint8_t *, uint32_t);
extern void qla2x00_dump_buffer_zipped(uint8_t *, uint32_t);
/*
* Global Function Prototypes in qla_gs.c source file.

16
drivers/scsi/qla2xxx/qla_inline.h
View file

@ -67,3 +67,19 @@ qla2x00_is_reserved_id(scsi_qla_host_t *vha, uint16_t loop_id)
return ((loop_id > ha->max_loop_id && loop_id < SNS_FIRST_LOOP_ID) ||
loop_id == MANAGEMENT_SERVER || loop_id == BROADCAST);
}
static inline void
qla2x00_clean_dsd_pool(struct qla_hw_data *ha, srb_t *sp)
{
struct dsd_dma *dsd_ptr, *tdsd_ptr;
/* clean up allocated prev pool */
list_for_each_entry_safe(dsd_ptr, tdsd_ptr,
&((struct crc_context *)sp->ctx)->dsd_list, list) {
dma_pool_free(ha->dl_dma_pool, dsd_ptr->dsd_addr,
dsd_ptr->dsd_list_dma);
list_del(&dsd_ptr->list);
kfree(dsd_ptr);
}
INIT_LIST_HEAD(&((struct crc_context *)sp->ctx)->dsd_list);
}

678
drivers/scsi/qla2xxx/qla_iocb.c
View file

@ -145,7 +145,49 @@ qla2x00_prep_cont_type1_iocb(scsi_qla_host_t *vha)
return (cont_pkt);
}
/**
static inline int
qla24xx_configure_prot_mode(srb_t *sp, uint16_t *fw_prot_opts)
{
uint8_t guard = scsi_host_get_guard(sp->cmd->device->host);
/* We only support T10 DIF right now */
if (guard != SHOST_DIX_GUARD_CRC) {
DEBUG2(printk(KERN_ERR "Unsupported guard: %d\n", guard));
return 0;
}
/* We always use DIFF Bundling for best performance */
*fw_prot_opts = 0;
/* Translate SCSI opcode to a protection opcode */
switch (scsi_get_prot_op(sp->cmd)) {
case SCSI_PROT_READ_STRIP:
*fw_prot_opts |= PO_MODE_DIF_REMOVE;
break;
case SCSI_PROT_WRITE_INSERT:
*fw_prot_opts |= PO_MODE_DIF_INSERT;
break;
case SCSI_PROT_READ_INSERT:
*fw_prot_opts |= PO_MODE_DIF_INSERT;
break;
case SCSI_PROT_WRITE_STRIP:
*fw_prot_opts |= PO_MODE_DIF_REMOVE;
break;
case SCSI_PROT_READ_PASS:
*fw_prot_opts |= PO_MODE_DIF_PASS;
break;
case SCSI_PROT_WRITE_PASS:
*fw_prot_opts |= PO_MODE_DIF_PASS;
break;
default: /* Normal Request */
*fw_prot_opts |= PO_MODE_DIF_PASS;
break;
}
return scsi_prot_sg_count(sp->cmd);
}
/*
* qla2x00_build_scsi_iocbs_32() - Build IOCB command utilizing 32bit
* capable IOCB types.
*
@ -636,6 +678,8 @@ qla24xx_calc_iocbs(uint16_t dsds)
if ((dsds - 1) % 5)
iocbs++;
}
DEBUG3(printk(KERN_DEBUG "%s(): Required PKT(s) = %d\n",
__func__, iocbs));
return iocbs;
}
@ -716,6 +760,453 @@ qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt,
}
}
struct fw_dif_context {
uint32_t ref_tag;
uint16_t app_tag;
uint8_t ref_tag_mask[4]; /* Validation/Replacement Mask*/
uint8_t app_tag_mask[2]; /* Validation/Replacement Mask*/
};
/*
* qla24xx_set_t10dif_tags_from_cmd - Extract Ref and App tags from SCSI command
*
*/
static inline void
qla24xx_set_t10dif_tags(struct scsi_cmnd *cmd, struct fw_dif_context *pkt,
unsigned int protcnt)
{
struct sd_dif_tuple *spt;
unsigned char op = scsi_get_prot_op(cmd);
switch (scsi_get_prot_type(cmd)) {
/* For TYPE 0 protection: no checking */
case SCSI_PROT_DIF_TYPE0:
pkt->ref_tag_mask[0] = 0x00;
pkt->ref_tag_mask[1] = 0x00;
pkt->ref_tag_mask[2] = 0x00;
pkt->ref_tag_mask[3] = 0x00;
break;
/*
* For TYPE 2 protection: 16 bit GUARD + 32 bit REF tag has to
* match LBA in CDB + N
*/
case SCSI_PROT_DIF_TYPE2:
break;
/* For Type 3 protection: 16 bit GUARD only */
case SCSI_PROT_DIF_TYPE3:
pkt->ref_tag_mask[0] = pkt->ref_tag_mask[1] =
pkt->ref_tag_mask[2] = pkt->ref_tag_mask[3] =
0x00;
break;
/*
* For TYpe 1 protection: 16 bit GUARD tag, 32 bit REF tag, and
* 16 bit app tag.
*/
case SCSI_PROT_DIF_TYPE1:
if (!ql2xenablehba_err_chk)
break;
if (protcnt && (op == SCSI_PROT_WRITE_STRIP ||
op == SCSI_PROT_WRITE_PASS)) {
spt = page_address(sg_page(scsi_prot_sglist(cmd))) +
scsi_prot_sglist(cmd)[0].offset;
DEBUG18(printk(KERN_DEBUG
"%s(): LBA from user %p, lba = 0x%x\n",
__func__, spt, (int)spt->ref_tag));
pkt->ref_tag = swab32(spt->ref_tag);
pkt->app_tag_mask[0] = 0x0;
pkt->app_tag_mask[1] = 0x0;
} else {
pkt->ref_tag = cpu_to_le32((uint32_t)
(0xffffffff & scsi_get_lba(cmd)));
pkt->app_tag = __constant_cpu_to_le16(0);
pkt->app_tag_mask[0] = 0x0;
pkt->app_tag_mask[1] = 0x0;
}
/* enable ALL bytes of the ref tag */
pkt->ref_tag_mask[0] = 0xff;
pkt->ref_tag_mask[1] = 0xff;
pkt->ref_tag_mask[2] = 0xff;
pkt->ref_tag_mask[3] = 0xff;
break;
}
DEBUG18(printk(KERN_DEBUG
"%s(): Setting protection Tags: (BIG) ref tag = 0x%x,"
" app tag = 0x%x, prot SG count %d , cmd lba 0x%x,"
" prot_type=%u\n", __func__, pkt->ref_tag, pkt->app_tag, protcnt,
(int)scsi_get_lba(cmd), scsi_get_prot_type(cmd)));
}
static int
qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd,
uint16_t tot_dsds)
{
void *next_dsd;
uint8_t avail_dsds = 0;
uint32_t dsd_list_len;
struct dsd_dma *dsd_ptr;
struct scatterlist *sg;
uint32_t *cur_dsd = dsd;
int i;
uint16_t used_dsds = tot_dsds;
uint8_t *cp;
scsi_for_each_sg(sp->cmd, sg, tot_dsds, i) {
dma_addr_t sle_dma;
/* Allocate additional continuation packets? */
if (avail_dsds == 0) {
avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
QLA_DSDS_PER_IOCB : used_dsds;
dsd_list_len = (avail_dsds + 1) * 12;
used_dsds -= avail_dsds;
/* allocate tracking DS */
dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
if (!dsd_ptr)
return 1;
/* allocate new list */
dsd_ptr->dsd_addr = next_dsd =
dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
&dsd_ptr->dsd_list_dma);
if (!next_dsd) {
/*
* Need to cleanup only this dsd_ptr, rest
* will be done by sp_free_dma()
*/
kfree(dsd_ptr);
return 1;
}
list_add_tail(&dsd_ptr->list,
&((struct crc_context *)sp->ctx)->dsd_list);
sp->flags |= SRB_CRC_CTX_DSD_VALID;
/* add new list to cmd iocb or last list */
*cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
*cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
*cur_dsd++ = dsd_list_len;
cur_dsd = (uint32_t *)next_dsd;
}
sle_dma = sg_dma_address(sg);
DEBUG18(printk("%s(): %p, sg entry %d - addr =0x%x 0x%x,"
" len =%d\n", __func__ , cur_dsd, i, LSD(sle_dma),
MSD(sle_dma), sg_dma_len(sg)));
*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
*cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
avail_dsds--;
if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) {
cp = page_address(sg_page(sg)) + sg->offset;
DEBUG18(printk("%s(): User Data buffer= %p:\n",
__func__ , cp));
}
}
/* Null termination */
*cur_dsd++ = 0;
*cur_dsd++ = 0;
*cur_dsd++ = 0;
return 0;
}
static int
qla24xx_walk_and_build_prot_sglist(struct qla_hw_data *ha, srb_t *sp,
uint32_t *dsd,
uint16_t tot_dsds)
{
void *next_dsd;
uint8_t avail_dsds = 0;
uint32_t dsd_list_len;
struct dsd_dma *dsd_ptr;
struct scatterlist *sg;
int i;
struct scsi_cmnd *cmd;
uint32_t *cur_dsd = dsd;
uint16_t used_dsds = tot_dsds;
uint8_t *cp;
cmd = sp->cmd;
scsi_for_each_prot_sg(cmd, sg, tot_dsds, i) {
dma_addr_t sle_dma;
/* Allocate additional continuation packets? */
if (avail_dsds == 0) {
avail_dsds = (used_dsds > QLA_DSDS_PER_IOCB) ?
QLA_DSDS_PER_IOCB : used_dsds;
dsd_list_len = (avail_dsds + 1) * 12;
used_dsds -= avail_dsds;
/* allocate tracking DS */
dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
if (!dsd_ptr)
return 1;
/* allocate new list */
dsd_ptr->dsd_addr = next_dsd =
dma_pool_alloc(ha->dl_dma_pool, GFP_ATOMIC,
&dsd_ptr->dsd_list_dma);
if (!next_dsd) {
/*
* Need to cleanup only this dsd_ptr, rest
* will be done by sp_free_dma()
*/
kfree(dsd_ptr);
return 1;
}
list_add_tail(&dsd_ptr->list,
&((struct crc_context *)sp->ctx)->dsd_list);
sp->flags |= SRB_CRC_CTX_DSD_VALID;
/* add new list to cmd iocb or last list */
*cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
*cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
*cur_dsd++ = dsd_list_len;
cur_dsd = (uint32_t *)next_dsd;
}
sle_dma = sg_dma_address(sg);
if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) {
DEBUG18(printk(KERN_DEBUG
"%s(): %p, sg entry %d - addr =0x%x"
"0x%x, len =%d\n", __func__ , cur_dsd, i,
LSD(sle_dma), MSD(sle_dma), sg_dma_len(sg)));
}
*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
*cur_dsd++ = cpu_to_le32(sg_dma_len(sg));
if (scsi_get_prot_op(sp->cmd) == SCSI_PROT_WRITE_PASS) {
cp = page_address(sg_page(sg)) + sg->offset;
DEBUG18(printk("%s(): Protection Data buffer = %p:\n",
__func__ , cp));
}
avail_dsds--;
}
/* Null termination */
*cur_dsd++ = 0;
*cur_dsd++ = 0;
*cur_dsd++ = 0;
return 0;
}
/**
* qla24xx_build_scsi_crc_2_iocbs() - Build IOCB command utilizing Command
* Type 6 IOCB types.
*
* @sp: SRB command to process
* @cmd_pkt: Command type 3 IOCB
* @tot_dsds: Total number of segments to transfer
*/
static inline int
qla24xx_build_scsi_crc_2_iocbs(srb_t *sp, struct cmd_type_crc_2 *cmd_pkt,
uint16_t tot_dsds, uint16_t tot_prot_dsds, uint16_t fw_prot_opts)
{
uint32_t *cur_dsd, *fcp_dl;
scsi_qla_host_t *vha;
struct scsi_cmnd *cmd;
struct scatterlist *cur_seg;
int sgc;
uint32_t total_bytes;
uint32_t data_bytes;
uint32_t dif_bytes;
uint8_t bundling = 1;
uint16_t blk_size;
uint8_t *clr_ptr;
struct crc_context *crc_ctx_pkt = NULL;
struct qla_hw_data *ha;
uint8_t additional_fcpcdb_len;
uint16_t fcp_cmnd_len;
struct fcp_cmnd *fcp_cmnd;
dma_addr_t crc_ctx_dma;
cmd = sp->cmd;
sgc = 0;
/* Update entry type to indicate Command Type CRC_2 IOCB */
*((uint32_t *)(&cmd_pkt->entry_type)) =
__constant_cpu_to_le32(COMMAND_TYPE_CRC_2);
/* No data transfer */
data_bytes = scsi_bufflen(cmd);
if (!data_bytes || cmd->sc_data_direction == DMA_NONE) {
DEBUG18(printk(KERN_INFO "%s: Zero data bytes or DMA-NONE %d\n",
__func__, data_bytes));
cmd_pkt->byte_count = __constant_cpu_to_le32(0);
return QLA_SUCCESS;
}
vha = sp->fcport->vha;
ha = vha->hw;
DEBUG18(printk(KERN_DEBUG
"%s(%ld): Executing cmd sp %p, pid=%ld, prot_op=%u.\n", __func__,
vha->host_no, sp, cmd->serial_number, scsi_get_prot_op(sp->cmd)));
cmd_pkt->vp_index = sp->fcport->vp_idx;
/* Set transfer direction */
if (cmd->sc_data_direction == DMA_TO_DEVICE) {
cmd_pkt->control_flags =
__constant_cpu_to_le16(CF_WRITE_DATA);
} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
cmd_pkt->control_flags =
__constant_cpu_to_le16(CF_READ_DATA);
}
tot_prot_dsds = scsi_prot_sg_count(cmd);
if (!tot_prot_dsds)
bundling = 0;
/* Allocate CRC context from global pool */
crc_ctx_pkt = sp->ctx = dma_pool_alloc(ha->dl_dma_pool,
GFP_ATOMIC, &crc_ctx_dma);
if (!crc_ctx_pkt)
goto crc_queuing_error;
/* Zero out CTX area. */
clr_ptr = (uint8_t *)crc_ctx_pkt;
memset(clr_ptr, 0, sizeof(*crc_ctx_pkt));
crc_ctx_pkt->crc_ctx_dma = crc_ctx_dma;
sp->flags |= SRB_CRC_CTX_DMA_VALID;
/* Set handle */
crc_ctx_pkt->handle = cmd_pkt->handle;
INIT_LIST_HEAD(&crc_ctx_pkt->dsd_list);
qla24xx_set_t10dif_tags(cmd, (struct fw_dif_context *)
&crc_ctx_pkt->ref_tag, tot_prot_dsds);
cmd_pkt->crc_context_address[0] = cpu_to_le32(LSD(crc_ctx_dma));
cmd_pkt->crc_context_address[1] = cpu_to_le32(MSD(crc_ctx_dma));
cmd_pkt->crc_context_len = CRC_CONTEXT_LEN_FW;
/* Determine SCSI command length -- align to 4 byte boundary */
if (cmd->cmd_len > 16) {
DEBUG18(printk(KERN_INFO "%s(): **** SCSI CMD > 16\n",
__func__));
additional_fcpcdb_len = cmd->cmd_len - 16;
if ((cmd->cmd_len % 4) != 0) {
/* SCSI cmd > 16 bytes must be multiple of 4 */
goto crc_queuing_error;
}
fcp_cmnd_len = 12 + cmd->cmd_len + 4;
} else {
additional_fcpcdb_len = 0;
fcp_cmnd_len = 12 + 16 + 4;
}
fcp_cmnd = &crc_ctx_pkt->fcp_cmnd;
fcp_cmnd->additional_cdb_len = additional_fcpcdb_len;
if (cmd->sc_data_direction == DMA_TO_DEVICE)
fcp_cmnd->additional_cdb_len |= 1;
else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
fcp_cmnd->additional_cdb_len |= 2;
int_to_scsilun(sp->cmd->device->lun, &fcp_cmnd->lun);
memcpy(fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(fcp_cmnd_len);
cmd_pkt->fcp_cmnd_dseg_address[0] = cpu_to_le32(
LSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF));
cmd_pkt->fcp_cmnd_dseg_address[1] = cpu_to_le32(
MSD(crc_ctx_dma + CRC_CONTEXT_FCPCMND_OFF));
fcp_cmnd->task_attribute = 0;
fcp_cmnd->task_managment = 0;
cmd_pkt->fcp_rsp_dseg_len = 0; /* Let response come in status iocb */
DEBUG18(printk(KERN_INFO "%s(%ld): Total SG(s) Entries %d, Data"
"entries %d, data bytes %d, Protection entries %d\n",
__func__, vha->host_no, tot_dsds, (tot_dsds-tot_prot_dsds),
data_bytes, tot_prot_dsds));
/* Compute dif len and adjust data len to incude protection */
total_bytes = data_bytes;
dif_bytes = 0;
blk_size = cmd->device->sector_size;
if (scsi_get_prot_type(cmd) == SCSI_PROT_DIF_TYPE1) {
dif_bytes = (data_bytes / blk_size) * 8;
total_bytes += dif_bytes;
}
if (!ql2xenablehba_err_chk)
fw_prot_opts |= 0x10; /* Disable Guard tag checking */
if (!bundling) {
cur_dsd = (uint32_t *) &crc_ctx_pkt->u.nobundling.data_address;
} else {
/*
* Configure Bundling if we need to fetch interlaving
* protection PCI accesses
*/
fw_prot_opts |= PO_ENABLE_DIF_BUNDLING;
crc_ctx_pkt->u.bundling.dif_byte_count = cpu_to_le32(dif_bytes);
crc_ctx_pkt->u.bundling.dseg_count = cpu_to_le16(tot_dsds -
tot_prot_dsds);
cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.data_address;
}
/* Finish the common fields of CRC pkt */
crc_ctx_pkt->blk_size = cpu_to_le16(blk_size);
crc_ctx_pkt->prot_opts = cpu_to_le16(fw_prot_opts);
crc_ctx_pkt->byte_count = cpu_to_le32(data_bytes);
crc_ctx_pkt->guard_seed = __constant_cpu_to_le16(0);
/* Fibre channel byte count */
cmd_pkt->byte_count = cpu_to_le32(total_bytes);
fcp_dl = (uint32_t *)(crc_ctx_pkt->fcp_cmnd.cdb + 16 +
additional_fcpcdb_len);
*fcp_dl = htonl(total_bytes);
DEBUG18(printk(KERN_INFO "%s(%ld): dif bytes = 0x%x (%d), total bytes"
" = 0x%x (%d), dat block size =0x%x (%d)\n", __func__,
vha->host_no, dif_bytes, dif_bytes, total_bytes, total_bytes,
crc_ctx_pkt->blk_size, crc_ctx_pkt->blk_size));
/* Walks data segments */
cmd_pkt->control_flags |=
__constant_cpu_to_le16(CF_DATA_SEG_DESCR_ENABLE);
if (qla24xx_walk_and_build_sglist(ha, sp, cur_dsd,
(tot_dsds - tot_prot_dsds)))
goto crc_queuing_error;
if (bundling && tot_prot_dsds) {
/* Walks dif segments */
cur_seg = scsi_prot_sglist(cmd);
cmd_pkt->control_flags |=
__constant_cpu_to_le16(CF_DIF_SEG_DESCR_ENABLE);
cur_dsd = (uint32_t *) &crc_ctx_pkt->u.bundling.dif_address;
if (qla24xx_walk_and_build_prot_sglist(ha, sp, cur_dsd,
tot_prot_dsds))
goto crc_queuing_error;
}
return QLA_SUCCESS;
crc_queuing_error:
DEBUG18(qla_printk(KERN_INFO, ha,
"CMD sent FAILED crc_q error:sp = %p\n", sp));
/* Cleanup will be performed by the caller */
return QLA_FUNCTION_FAILED;
}
/**
* qla24xx_start_scsi() - Send a SCSI command to the ISP
@ -869,6 +1360,191 @@ qla24xx_start_scsi(srb_t *sp)
return QLA_FUNCTION_FAILED;
}
/**
* qla24xx_dif_start_scsi() - Send a SCSI command to the ISP
* @sp: command to send to the ISP
*
* Returns non-zero if a failure occurred, else zero.
*/
int
qla24xx_dif_start_scsi(srb_t *sp)
{
int nseg;
unsigned long flags;
uint32_t *clr_ptr;
uint32_t index;
uint32_t handle;
uint16_t cnt;
uint16_t req_cnt = 0;
uint16_t tot_dsds;
uint16_t tot_prot_dsds;
uint16_t fw_prot_opts = 0;
struct req_que *req = NULL;
struct rsp_que *rsp = NULL;
struct scsi_cmnd *cmd = sp->cmd;
struct scsi_qla_host *vha = sp->fcport->vha;
struct qla_hw_data *ha = vha->hw;
struct cmd_type_crc_2 *cmd_pkt;
uint32_t status = 0;
#define QDSS_GOT_Q_SPACE BIT_0
/* Only process protection in this routine */
if (scsi_get_prot_op(cmd) == SCSI_PROT_NORMAL)
return qla24xx_start_scsi(sp);
/* Setup device pointers. */
qla25xx_set_que(sp, &rsp);
req = vha->req;
/* So we know we haven't pci_map'ed anything yet */
tot_dsds = 0;
/* Send marker if required */
if (vha->marker_needed != 0) {
if (qla2x00_marker(vha, req, rsp, 0, 0, MK_SYNC_ALL) !=
QLA_SUCCESS)
return QLA_FUNCTION_FAILED;
vha->marker_needed = 0;
}
/* Acquire ring specific lock */
spin_lock_irqsave(&ha->hardware_lock, flags);
/* Check for room in outstanding command list. */
handle = req->current_outstanding_cmd;
for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
handle++;
if (handle == MAX_OUTSTANDING_COMMANDS)
handle = 1;
if (!req->outstanding_cmds[handle])
break;
}
if (index == MAX_OUTSTANDING_COMMANDS)
goto queuing_error;
/* Compute number of required data segments */
/* Map the sg table so we have an accurate count of sg entries needed */
if (scsi_sg_count(cmd)) {
nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
scsi_sg_count(cmd), cmd->sc_data_direction);
if (unlikely(!nseg))
goto queuing_error;
else
sp->flags |= SRB_DMA_VALID;
} else
nseg = 0;
/* number of required data segments */
tot_dsds = nseg;
/* Compute number of required protection segments */
if (qla24xx_configure_prot_mode(sp, &fw_prot_opts)) {
nseg = dma_map_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
scsi_prot_sg_count(cmd), cmd->sc_data_direction);
if (unlikely(!nseg))
goto queuing_error;
else
sp->flags |= SRB_CRC_PROT_DMA_VALID;
} else {
nseg = 0;
}
req_cnt = 1;
/* Total Data and protection sg segment(s) */
tot_prot_dsds = nseg;
tot_dsds += nseg;
if (req->cnt < (req_cnt + 2)) {
cnt = RD_REG_DWORD_RELAXED(req->req_q_out);
if (req->ring_index < cnt)
req->cnt = cnt - req->ring_index;
else
req->cnt = req->length -
(req->ring_index - cnt);
}
if (req->cnt < (req_cnt + 2))
goto queuing_error;
status |= QDSS_GOT_Q_SPACE;
/* Build header part of command packet (excluding the OPCODE). */
req->current_outstanding_cmd = handle;
req->outstanding_cmds[handle] = sp;
sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle;
req->cnt -= req_cnt;
/* Fill-in common area */
cmd_pkt = (struct cmd_type_crc_2 *)req->ring_ptr;
cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
clr_ptr = (uint32_t *)cmd_pkt + 2;
memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
/* Set NPORT-ID and LUN number*/
cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
/* Total Data and protection segment(s) */
cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
/* Build IOCB segments and adjust for data protection segments */
if (qla24xx_build_scsi_crc_2_iocbs(sp, (struct cmd_type_crc_2 *)
req->ring_ptr, tot_dsds, tot_prot_dsds, fw_prot_opts) !=
QLA_SUCCESS)
goto queuing_error;
cmd_pkt->entry_count = (uint8_t)req_cnt;
/* Specify response queue number where completion should happen */
cmd_pkt->entry_status = (uint8_t) rsp->id;
cmd_pkt->timeout = __constant_cpu_to_le16(0);
wmb();
/* Adjust ring index. */
req->ring_index++;
if (req->ring_index == req->length) {
req->ring_index = 0;
req->ring_ptr = req->ring;
} else
req->ring_ptr++;
/* Set chip new ring index. */
WRT_REG_DWORD(req->req_q_in, req->ring_index);
RD_REG_DWORD_RELAXED(&ha->iobase->isp24.hccr);
/* Manage unprocessed RIO/ZIO commands in response queue. */
if (vha->flags.process_response_queue &&
rsp->ring_ptr->signature != RESPONSE_PROCESSED)
qla24xx_process_response_queue(vha, rsp);
spin_unlock_irqrestore(&ha->hardware_lock, flags);
return QLA_SUCCESS;
queuing_error:
if (status & QDSS_GOT_Q_SPACE) {
req->outstanding_cmds[handle] = NULL;
req->cnt += req_cnt;
}
/* Cleanup will be performed by the caller (queuecommand) */
spin_unlock_irqrestore(&ha->hardware_lock, flags);
DEBUG18(qla_printk(KERN_INFO, ha,
"CMD sent FAILED SCSI prot_op:%02x\n", scsi_get_prot_op(cmd)));
return QLA_FUNCTION_FAILED;
}
static void qla25xx_set_que(srb_t *sp, struct rsp_que **rsp)
{
struct scsi_cmnd *cmd = sp->cmd;

77
drivers/scsi/qla2xxx/qla_isr.c
View file

@ -10,6 +10,7 @@
#include <linux/slab.h>
#include <scsi/scsi_tcq.h>
#include <scsi/scsi_bsg_fc.h>
#include <scsi/scsi_eh.h>
static void qla2x00_mbx_completion(scsi_qla_host_t *, uint16_t);
static void qla2x00_process_completed_request(struct scsi_qla_host *,
@ -1364,6 +1365,78 @@ qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t sense_len,
DEBUG5(qla2x00_dump_buffer(cp->sense_buffer, sense_len));
}
struct scsi_dif_tuple {
__be16 guard; /* Checksum */
__be16 app_tag; /* APPL identifer */
__be32 ref_tag; /* Target LBA or indirect LBA */
};
/*
* Checks the guard or meta-data for the type of error
* detected by the HBA. In case of errors, we set the
* ASC/ASCQ fields in the sense buffer with ILLEGAL_REQUEST
* to indicate to the kernel that the HBA detected error.
*/
static inline void
qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
{
struct scsi_cmnd *cmd = sp->cmd;
struct scsi_dif_tuple *ep =
(struct scsi_dif_tuple *)&sts24->data[20];
struct scsi_dif_tuple *ap =
(struct scsi_dif_tuple *)&sts24->data[12];
uint32_t e_ref_tag, a_ref_tag;
uint16_t e_app_tag, a_app_tag;
uint16_t e_guard, a_guard;
e_ref_tag = be32_to_cpu(ep->ref_tag);
a_ref_tag = be32_to_cpu(ap->ref_tag);
e_app_tag = be16_to_cpu(ep->app_tag);
a_app_tag = be16_to_cpu(ap->app_tag);
e_guard = be16_to_cpu(ep->guard);
a_guard = be16_to_cpu(ap->guard);
DEBUG18(printk(KERN_DEBUG
"%s(): iocb(s) %p Returned STATUS\n", __func__, sts24));
DEBUG18(printk(KERN_ERR "DIF ERROR in cmd 0x%x lba 0x%llx act ref"
" tag=0x%x, exp ref_tag=0x%x, act app tag=0x%x, exp app"
" tag=0x%x, act guard=0x%x, exp guard=0x%x\n",
cmd->cmnd[0], (u64)scsi_get_lba(cmd), a_ref_tag, e_ref_tag,
a_app_tag, e_app_tag, a_guard, e_guard));
/* check guard */
if (e_guard != a_guard) {
scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
0x10, 0x1);
set_driver_byte(cmd, DRIVER_SENSE);
set_host_byte(cmd, DID_ABORT);
cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
return;
}
/* check appl tag */
if (e_app_tag != a_app_tag) {
scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
0x10, 0x2);
set_driver_byte(cmd, DRIVER_SENSE);
set_host_byte(cmd, DID_ABORT);
cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
return;
}
/* check ref tag */
if (e_ref_tag != a_ref_tag) {
scsi_build_sense_buffer(1, cmd->sense_buffer, ILLEGAL_REQUEST,
0x10, 0x3);
set_driver_byte(cmd, DRIVER_SENSE);
set_host_byte(cmd, DID_ABORT);
cmd->result |= SAM_STAT_CHECK_CONDITION << 1;
return;
}
}
/**
* qla2x00_status_entry() - Process a Status IOCB entry.
* @ha: SCSI driver HA context
@ -1630,6 +1703,10 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
case CS_ABORTED:
cp->result = DID_RESET << 16;
break;
case CS_DIF_ERROR:
qla2x00_handle_dif_error(sp, sts24);
break;
default:
cp->result = DID_ERROR << 16;
break;

75
drivers/scsi/qla2xxx/qla_os.c
View file

@ -92,6 +92,19 @@ module_param(ql2xmaxqdepth, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xmaxqdepth,
"Maximum queue depth to report for target devices.");
/* Do not change the value of this after module load */
int ql2xenabledif = 1;
module_param(ql2xenabledif, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xenabledif,
" Enable T10-CRC-DIF "
" Default is 0 - No DIF Support. 1 - Enable it");
int ql2xenablehba_err_chk;
module_param(ql2xenablehba_err_chk, int, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(ql2xenablehba_err_chk,
" Enable T10-CRC-DIF Error isolation by HBA"
" Default is 0 - Error isolation disabled, 1 - Enable it");
int ql2xiidmaenable=1;
module_param(ql2xiidmaenable, int, S_IRUGO|S_IRUSR);
MODULE_PARM_DESC(ql2xiidmaenable,
@ -537,6 +550,14 @@ qla2xxx_queuecommand(struct scsi_cmnd *cmd, void (*done)(struct scsi_cmnd *))
if (fcport->drport)
goto qc24_target_busy;
if (!vha->flags.difdix_supported &&
scsi_get_prot_op(cmd) != SCSI_PROT_NORMAL) {
DEBUG2(qla_printk(KERN_ERR, ha,
"DIF Cap Not Reg, fail DIF capable cmd's:%x\n",
cmd->cmnd[0]));
cmd->result = DID_NO_CONNECT << 16;
goto qc24_fail_command;
}
if (atomic_read(&fcport->state) != FCS_ONLINE) {
if (atomic_read(&fcport->state) == FCS_DEVICE_DEAD ||
atomic_read(&base_vha->loop_state) == LOOP_DEAD) {
@ -776,7 +797,8 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
if (sp == NULL)
continue;
if ((sp->ctx) && !(sp->flags & SRB_FCP_CMND_DMA_VALID))
if ((sp->ctx) && !(sp->flags & SRB_FCP_CMND_DMA_VALID) &&
!IS_PROT_IO(sp))
continue;
if (sp->cmd != cmd)
continue;
@ -842,7 +864,7 @@ qla2x00_eh_wait_for_pending_commands(scsi_qla_host_t *vha, unsigned int t,
sp = req->outstanding_cmds[cnt];
if (!sp)
continue;
if (sp->ctx)
if ((sp->ctx) && !IS_PROT_IO(sp))
continue;
if (vha->vp_idx != sp->fcport->vha->vp_idx)
continue;
@ -1189,7 +1211,8 @@ qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
if (sp) {
req->outstanding_cmds[cnt] = NULL;
if (!sp->ctx ||
(sp->flags & SRB_FCP_CMND_DMA_VALID)) {
(sp->flags & SRB_FCP_CMND_DMA_VALID) ||
IS_PROT_IO(sp)) {
sp->cmd->result = res;
qla2x00_sp_compl(ha, sp);
} else {
@ -1553,7 +1576,7 @@ static struct isp_operations qla25xx_isp_ops = {
.read_optrom = qla25xx_read_optrom_data,
.write_optrom = qla24xx_write_optrom_data,
.get_flash_version = qla24xx_get_flash_version,
.start_scsi = qla24xx_start_scsi,
.start_scsi = qla24xx_dif_start_scsi,
.abort_isp = qla2x00_abort_isp,
};
@ -2185,6 +2208,22 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
DEBUG2(printk("DEBUG: detect hba %ld at address = %p\n",
base_vha->host_no, ha));
if (IS_QLA25XX(ha) && ql2xenabledif) {
if (ha->fw_attributes & BIT_4) {
base_vha->flags.difdix_supported = 1;
DEBUG18(qla_printk(KERN_INFO, ha,
"Registering for DIF/DIX type 1 and 3"
" protection.\n"));
scsi_host_set_prot(host,
SHOST_DIF_TYPE1_PROTECTION
| SHOST_DIF_TYPE3_PROTECTION
| SHOST_DIX_TYPE1_PROTECTION
| SHOST_DIX_TYPE3_PROTECTION);
scsi_host_set_guard(host, SHOST_DIX_GUARD_CRC);
} else
base_vha->flags.difdix_supported = 0;
}
ha->isp_ops->enable_intrs(ha);
ret = scsi_add_host(host, &pdev->dev);
@ -2546,7 +2585,7 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
if (!ha->s_dma_pool)
goto fail_free_nvram;
if (IS_QLA82XX(ha)) {
if (IS_QLA82XX(ha) || ql2xenabledif) {
ha->dl_dma_pool = dma_pool_create(name, &ha->pdev->dev,
DSD_LIST_DMA_POOL_SIZE, 8, 0);
if (!ha->dl_dma_pool) {
@ -2678,12 +2717,12 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
ha->ms_iocb = NULL;
ha->ms_iocb_dma = 0;
fail_dma_pool:
if (IS_QLA82XX(ha)) {
if (IS_QLA82XX(ha) || ql2xenabledif) {
dma_pool_destroy(ha->fcp_cmnd_dma_pool);
ha->fcp_cmnd_dma_pool = NULL;
}
fail_dl_dma_pool:
if (IS_QLA82XX(ha)) {
if (IS_QLA82XX(ha) || ql2xenabledif) {
dma_pool_destroy(ha->dl_dma_pool);
ha->dl_dma_pool = NULL;
}
@ -3346,11 +3385,31 @@ static void
qla2x00_sp_free_dma(srb_t *sp)
{
struct scsi_cmnd *cmd = sp->cmd;
struct qla_hw_data *ha = sp->fcport->vha->hw;
if (sp->flags & SRB_DMA_VALID) {
scsi_dma_unmap(cmd);
sp->flags &= ~SRB_DMA_VALID;
}
if (sp->flags & SRB_CRC_PROT_DMA_VALID) {
dma_unmap_sg(&ha->pdev->dev, scsi_prot_sglist(cmd),
scsi_prot_sg_count(cmd), cmd->sc_data_direction);
sp->flags &= ~SRB_CRC_PROT_DMA_VALID;
}
if (sp->flags & SRB_CRC_CTX_DSD_VALID) {
/* List assured to be having elements */
qla2x00_clean_dsd_pool(ha, sp);
sp->flags &= ~SRB_CRC_CTX_DSD_VALID;
}
if (sp->flags & SRB_CRC_CTX_DMA_VALID) {
dma_pool_free(ha->dl_dma_pool, sp->ctx,
((struct crc_context *)sp->ctx)->crc_ctx_dma);
sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
}
CMD_SP(cmd) = NULL;
}
@ -3464,7 +3523,7 @@ qla2x00_timer(scsi_qla_host_t *vha)
sp = req->outstanding_cmds[index];
if (!sp)
continue;
if (sp->ctx)
if (sp->ctx && !IS_PROT_IO(sp))
continue;
sfcp = sp->fcport;
if (!(sfcp->flags & FCF_FCP2_DEVICE))