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scsi: megaraid_sas: big endian support changes

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Fix endiannes fixes for Ventura specific.

Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Shivasharan S 2017-02-10 00:59:21 -08:00 committed by Martin K. Petersen
parent ff96f92517
commit a174118b7a
3 changed files with 122 additions and 78 deletions
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15
drivers/scsi/megaraid/megaraid_sas_fp.c
View File

@ -210,7 +210,7 @@ void MR_PopulateDrvRaidMap(struct megasas_instance *instance)
le32_to_cpu(fw_map_dyn->desc_table_size),
le32_to_cpu(fw_map_dyn->desc_table_num_elements));
dev_dbg(&instance->pdev->dev, "drv map %p ldCount %d\n",
drv_map, fw_map_dyn->ld_count);
drv_map, le16_to_cpu(fw_map_dyn->ld_count));
#endif
desc_table =
(struct MR_RAID_MAP_DESC_TABLE *)((void *)fw_map_dyn + le32_to_cpu(fw_map_dyn->desc_table_offset));
@ -222,7 +222,8 @@ void MR_PopulateDrvRaidMap(struct megasas_instance *instance)
pDrvRaidMap->ldCount = (__le16)cpu_to_le16(ld_count);
pDrvRaidMap->fpPdIoTimeoutSec =
fw_map_dyn->fp_pd_io_timeout_sec;
pDrvRaidMap->totalSize = sizeof(struct MR_DRV_RAID_MAP_ALL);
pDrvRaidMap->totalSize =
cpu_to_le32(sizeof(struct MR_DRV_RAID_MAP_ALL));
/* point to actual data starting point*/
raid_map_data = (void *)fw_map_dyn +
le32_to_cpu(fw_map_dyn->desc_table_offset) +
@ -234,11 +235,11 @@ void MR_PopulateDrvRaidMap(struct megasas_instance *instance)
dev_dbg(&instance->pdev->dev, "desc table %p\n",
desc_table);
dev_dbg(&instance->pdev->dev, "raidmap type %d, raidmapOffset 0x%x\n",
desc_table->raid_map_desc_type,
desc_table->raid_map_desc_offset);
le32_to_cpu(desc_table->raid_map_desc_type),
le32_to_cpu(desc_table->raid_map_desc_offset));
dev_dbg(&instance->pdev->dev, "raid map number of elements 0%x, raidmapsize 0x%x\n",
desc_table->raid_map_desc_elements,
desc_table->raid_map_desc_buffer_size);
le32_to_cpu(desc_table->raid_map_desc_elements),
le32_to_cpu(desc_table->raid_map_desc_buffer_size));
#endif
switch (le32_to_cpu(desc_table->raid_map_desc_type)) {
case RAID_MAP_DESC_TYPE_DEVHDL_INFO:
@ -263,7 +264,7 @@ void MR_PopulateDrvRaidMap(struct megasas_instance *instance)
#endif
for (j = 0; j < le32_to_cpu(desc_table->raid_map_desc_elements); j++) {
pDrvRaidMap->ldTgtIdToLd[j] =
fw_map_dyn->ld_tgt_id_to_ld[j];
le16_to_cpu(fw_map_dyn->ld_tgt_id_to_ld[j]);
#if VD_EXT_DEBUG
dev_dbg(&instance->pdev->dev, " %d drv ldTgtIdToLd %d\n",
j, pDrvRaidMap->ldTgtIdToLd[j]);

60
drivers/scsi/megaraid/megaraid_sas_fusion.c
View File

@ -2080,7 +2080,7 @@ static void megasas_stream_detect(struct megasas_instance *instance,
*/
continue;
cmd->io_request->RaidContext.raid_context_g35.stream_detected = true;
SET_STREAM_DETECTED(cmd->io_request->RaidContext.raid_context_g35);
current_sd->next_seq_lba =
io_info->ldStartBlock + io_info->numBlocks;
/*
@ -2154,7 +2154,8 @@ megasas_set_raidflag_cpu_affinity(union RAID_CONTEXT_UNION *praid_context,
/* Fast path cache by pass capable R0/R1 VD */
if ((raid->level <= 1) &&
(raid->capability.fp_cache_bypass_capable)) {
rctx_g35->routing_flags.bits.sld = 1;
rctx_g35->routing_flags |=
(1 << MR_RAID_CTX_ROUTINGFLAGS_SLD_SHIFT);
rctx_g35->raid_flags =
(MR_RAID_FLAGS_IO_SUB_TYPE_CACHE_BYPASS
<< MR_RAID_CTX_RAID_FLAGS_IO_SUB_TYPE_SHIFT);
@ -2174,7 +2175,7 @@ megasas_set_raidflag_cpu_affinity(union RAID_CONTEXT_UNION *praid_context,
else if (raid->cpuAffinity.ldWrite.cpu1)
cpu_sel = MR_RAID_CTX_CPUSEL_1;
if (rctx_g35->stream_detected &&
if (is_stream_detected(rctx_g35) &&
(raid->level == 5) &&
(raid->writeMode == MR_RL_WRITE_THROUGH_MODE) &&
(cpu_sel == MR_RAID_CTX_CPUSEL_FCFS))
@ -2182,7 +2183,8 @@ megasas_set_raidflag_cpu_affinity(union RAID_CONTEXT_UNION *praid_context,
}
}
rctx_g35->routing_flags.bits.cpu_sel = cpu_sel;
rctx_g35->routing_flags |=
(cpu_sel << MR_RAID_CTX_ROUTINGFLAGS_CPUSEL_SHIFT);
/* Always give priority to MR_RAID_FLAGS_IO_SUB_TYPE_LDIO_BW_LIMIT
* vs MR_RAID_FLAGS_IO_SUB_TYPE_CACHE_BYPASS.
@ -2333,7 +2335,7 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,
/* In ventura if stream detected for a read and it is read ahead
* capable make this IO as LDIO
*/
if (praid_context->raid_context_g35.stream_detected &&
if (is_stream_detected(&io_request->RaidContext.raid_context_g35) &&
io_info.isRead && io_info.ra_capable)
fp_possible = false;
@ -2368,8 +2370,8 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,
raid, fp_possible, io_info.isRead,
scsi_buff_len);
else
praid_context->raid_context_g35.routing_flags.bits.cpu_sel =
MR_RAID_CTX_CPUSEL_0;
praid_context->raid_context_g35.routing_flags |=
(MR_RAID_CTX_CPUSEL_0 << MR_RAID_CTX_ROUTINGFLAGS_CPUSEL_SHIFT);
}
if (fp_possible) {
@ -2393,10 +2395,12 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,
(MR_RL_FLAGS_GRANT_DESTINATION_CUDA |
MR_RL_FLAGS_SEQ_NUM_ENABLE);
} else if (instance->is_ventura) {
io_request->RaidContext.raid_context_g35.type
= MPI2_TYPE_CUDA;
io_request->RaidContext.raid_context_g35.nseg = 0x1;
io_request->RaidContext.raid_context_g35.routing_flags.bits.sqn = 1;
io_request->RaidContext.raid_context_g35.nseg_type |=
(1 << RAID_CONTEXT_NSEG_SHIFT);
io_request->RaidContext.raid_context_g35.nseg_type |=
(MPI2_TYPE_CUDA << RAID_CONTEXT_TYPE_SHIFT);
io_request->RaidContext.raid_context_g35.routing_flags |=
(1 << MR_RAID_CTX_ROUTINGFLAGS_SQN_SHIFT);
io_request->IoFlags |=
cpu_to_le16(MPI25_SAS_DEVICE0_FLAGS_ENABLED_FAST_PATH);
}
@ -2456,10 +2460,12 @@ megasas_build_ldio_fusion(struct megasas_instance *instance,
MR_RL_FLAGS_SEQ_NUM_ENABLE);
io_request->RaidContext.raid_context.nseg = 0x1;
} else if (instance->is_ventura) {
io_request->RaidContext.raid_context_g35.type
= MPI2_TYPE_CUDA;
io_request->RaidContext.raid_context_g35.routing_flags.bits.sqn = 1;
io_request->RaidContext.raid_context_g35.nseg = 0x1;
io_request->RaidContext.raid_context_g35.routing_flags |=
(1 << MR_RAID_CTX_ROUTINGFLAGS_SQN_SHIFT);
io_request->RaidContext.raid_context_g35.nseg_type |=
(1 << RAID_CONTEXT_NSEG_SHIFT);
io_request->RaidContext.raid_context_g35.nseg_type |=
(MPI2_TYPE_CUDA << RAID_CONTEXT_TYPE_SHIFT);
}
io_request->Function = MEGASAS_MPI2_FUNCTION_LD_IO_REQUEST;
io_request->DevHandle = cpu_to_le16(device_id);
@ -2613,13 +2619,19 @@ megasas_build_syspd_fusion(struct megasas_instance *instance,
cpu_to_le16(device_id + (MAX_PHYSICAL_DEVICES - 1));
pRAID_Context->config_seq_num = pd_sync->seq[pd_index].seqNum;
io_request->DevHandle = pd_sync->seq[pd_index].devHandle;
if (instance->is_ventura)
io_request->RaidContext.raid_context_g35.routing_flags.bits.sqn = 1;
else
pRAID_Context->reg_lock_flags |=
(MR_RL_FLAGS_SEQ_NUM_ENABLE|MR_RL_FLAGS_GRANT_DESTINATION_CUDA);
if (instance->is_ventura) {
io_request->RaidContext.raid_context_g35.routing_flags |=
(1 << MR_RAID_CTX_ROUTINGFLAGS_SQN_SHIFT);
io_request->RaidContext.raid_context_g35.nseg_type |=
(1 << RAID_CONTEXT_NSEG_SHIFT);
io_request->RaidContext.raid_context_g35.nseg_type |=
(MPI2_TYPE_CUDA << RAID_CONTEXT_TYPE_SHIFT);
} else {
pRAID_Context->type = MPI2_TYPE_CUDA;
pRAID_Context->nseg = 0x1;
pRAID_Context->reg_lock_flags |=
(MR_RL_FLAGS_SEQ_NUM_ENABLE|MR_RL_FLAGS_GRANT_DESTINATION_CUDA);
}
} else if (fusion->fast_path_io) {
pRAID_Context->virtual_disk_tgt_id = cpu_to_le16(device_id);
pRAID_Context->config_seq_num = 0;
@ -2734,9 +2746,11 @@ megasas_build_io_fusion(struct megasas_instance *instance,
return 1;
}
if (instance->is_ventura)
io_request->RaidContext.raid_context_g35.num_sge = sge_count;
else {
if (instance->is_ventura) {
set_num_sge(&io_request->RaidContext.raid_context_g35, sge_count);
cpu_to_le16s(&io_request->RaidContext.raid_context_g35.routing_flags);
cpu_to_le16s(&io_request->RaidContext.raid_context_g35.nseg_type);
} else {
/* numSGE store lower 8 bit of sge_count.
* numSGEExt store higher 8 bit of sge_count
*/

103
drivers/scsi/megaraid/megaraid_sas_fusion.h
View File

@ -148,44 +148,13 @@ struct RAID_CONTEXT {
* starts in MPT IO Frames
*/
struct RAID_CONTEXT_G35 {
#if defined(__BIG_ENDIAN_BITFIELD)
u16 resvd0:8;
u16 nseg:4;
u16 type:4;
#else
u16 type:4; /* 0x00 */
u16 nseg:4; /* 0x00 */
u16 resvd0:8;
#endif
#define RAID_CONTEXT_NSEG_MASK 0x00F0
#define RAID_CONTEXT_NSEG_SHIFT 4
#define RAID_CONTEXT_TYPE_MASK 0x000F
#define RAID_CONTEXT_TYPE_SHIFT 0
u16 nseg_type;
u16 timeout_value; /* 0x02 -0x03 */
union {
struct {
#if defined(__BIG_ENDIAN_BITFIELD)
u16 set_divert:4;
u16 cpu_sel:4;
u16 log:1;
u16 rw:1;
u16 sbs:1;
u16 sqn:1;
u16 fwn:1;
u16 c2f:1;
u16 sld:1;
u16 reserved:1;
#else
u16 reserved:1;
u16 sld:1;
u16 c2f:1;
u16 fwn:1;
u16 sqn:1;
u16 sbs:1;
u16 rw:1;
u16 log:1;
u16 cpu_sel:4;
u16 set_divert:4;
#endif
} bits;
u16 s;
} routing_flags; /* 0x04 -0x05 routing flags */
u16 routing_flags; // 0x04 -0x05 routing flags
u16 virtual_disk_tgt_id; /* 0x06 -0x07 */
u64 reg_lock_row_lba; /* 0x08 - 0x0F */
u32 reg_lock_length; /* 0x10 - 0x13 */
@ -200,6 +169,23 @@ struct RAID_CONTEXT_G35 {
*/
u8 span_arm; /* 0x1C span[7:5], arm[4:0] */
u16 config_seq_num; /* 0x1A -0x1B */
union {
/*
* Bit format:
* ---------------------------------
* | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
* ---------------------------------
* Byte0 | numSGE[7]- numSGE[0] |
* ---------------------------------
* Byte1 |SD | resvd | numSGE 8-11 |
* --------------------------------
*/
#define NUM_SGE_MASK_LOWER 0xFF
#define NUM_SGE_MASK_UPPER 0x0F
#define NUM_SGE_SHIFT_UPPER 8
#define STREAM_DETECT_SHIFT 7
#define STREAM_DETECT_MASK 0x80
struct {
#if defined(__BIG_ENDIAN_BITFIELD) /* 0x1C - 0x1D */
u16 stream_detected:1;
u16 reserved:3;
@ -209,9 +195,52 @@ struct RAID_CONTEXT_G35 {
u16 reserved:3;
u16 stream_detected:1;
#endif
} bits;
u8 bytes[2];
} u;
u8 resvd2[2]; /* 0x1E-0x1F */
};
#define MR_RAID_CTX_ROUTINGFLAGS_SLD_SHIFT 1
#define MR_RAID_CTX_ROUTINGFLAGS_C2D_SHIFT 2
#define MR_RAID_CTX_ROUTINGFLAGS_FWD_SHIFT 3
#define MR_RAID_CTX_ROUTINGFLAGS_SQN_SHIFT 4
#define MR_RAID_CTX_ROUTINGFLAGS_SBS_SHIFT 5
#define MR_RAID_CTX_ROUTINGFLAGS_RW_SHIFT 6
#define MR_RAID_CTX_ROUTINGFLAGS_LOG_SHIFT 7
#define MR_RAID_CTX_ROUTINGFLAGS_CPUSEL_SHIFT 8
#define MR_RAID_CTX_ROUTINGFLAGS_CPUSEL_MASK 0x0F00
#define MR_RAID_CTX_ROUTINGFLAGS_SETDIVERT_SHIFT 12
#define MR_RAID_CTX_ROUTINGFLAGS_SETDIVERT_MASK 0xF000
static inline void set_num_sge(struct RAID_CONTEXT_G35 *rctx_g35,
u16 sge_count)
{
rctx_g35->u.bytes[0] = (u8)(sge_count & NUM_SGE_MASK_LOWER);
rctx_g35->u.bytes[1] |= (u8)((sge_count >> NUM_SGE_SHIFT_UPPER)
& NUM_SGE_MASK_UPPER);
}
static inline u16 get_num_sge(struct RAID_CONTEXT_G35 *rctx_g35)
{
u16 sge_count;
sge_count = (u16)(((rctx_g35->u.bytes[1] & NUM_SGE_MASK_UPPER)
<< NUM_SGE_SHIFT_UPPER) | (rctx_g35->u.bytes[0]));
return sge_count;
}
#define SET_STREAM_DETECTED(rctx_g35) \
(rctx_g35.u.bytes[1] |= STREAM_DETECT_MASK)
#define CLEAR_STREAM_DETECTED(rctx_g35) \
(rctx_g35.u.bytes[1] &= ~(STREAM_DETECT_MASK))
static inline bool is_stream_detected(struct RAID_CONTEXT_G35 *rctx_g35)
{
return ((rctx_g35->u.bytes[1] & STREAM_DETECT_MASK));
}
union RAID_CONTEXT_UNION {
struct RAID_CONTEXT raid_context;
struct RAID_CONTEXT_G35 raid_context_g35;