Sumit,
@@ -1239,7 +1239,9 @@ union megasas_sgl_frame {
typedef union _MFI_CAPABILITIES {
struct {
#if defined(__BIG_ENDIAN_BITFIELD)
- u32 reserved:25;
+ u32 reserved:23;
+ u32 support_ext_io_size:1;
+ u32 support_ext_queue_depth:1;
u32 security_protocol_cmds_fw:1;
u32 support_core_affinity:1;
u32 support_ndrive_r1_lb:1;
@@ -1255,7 +1257,9 @@ typedef union _MFI_CAPABILITIES {
u32 support_ndrive_r1_lb:1;
u32 support_core_affinity:1;
u32 security_protocol_cmds_fw:1;
- u32 reserved:25;
+ u32 support_ext_queue_depth:1;
+ u32 support_ext_io_size:1;
+ u32 reserved:23;
#endif
} mfi_capabilities;
__le32 reg;
Mystery field: support_ext_queue_depth.
- fusion->sg_dma_pool = pci_pool_create("megasas sg pool fusion",
- instance->pdev,
- total_sz_chain_frame, 4,
- 0);
+ fusion->sg_dma_pool = pci_pool_create("sg_pool_fusion", instance->pdev,
+ instance->max_chain_frame_sz,
+ 4, 0);
+
Why rename the pools? I don't particularly mind but megasas is probably
more descriptive for most users than fusion is.
@@ -1096,15 +1093,40 @@ megasas_init_adapter_fusion(struct megasas_instance *instance)
(MEGA_MPI2_RAID_DEFAULT_IO_FRAME_SIZE *
(max_cmd + 1)); /* Extra 1 for SMID 0 */
+ scratch_pad_2 = readl(&instance->reg_set->outbound_scratch_pad_2);
scratch_pad_2 sounds like a pretty temporary thing rather than an
officially exported interface. But I guess that's what it's called.
+ /* If scratch_pad_2 & MEGASAS_MAX_CHAIN_SIZE_UNITS_MASK is set,
+ * Firmware support extended IO chain frame which is 4 time more
Nitpick: s/time/times/
+ if (scratch_pad_2 & MEGASAS_MAX_CHAIN_SIZE_UNITS_MASK)
+ instance->max_chain_frame_sz =
+ ((scratch_pad_2 & MEGASAS_MAX_CHAIN_SIZE_MASK) >> 5)
+ * MEGASAS_1MB_IO;
Magic number 5. Please define MEGASAS_MAX_CHAIN_SHIFT and use that.
@@ -117,7 +121,9 @@ struct RAID_CONTEXT {
u8 numSGE;
__le16 configSeqNum;
u8 spanArm;
- u8 resvd2[3];
+ u8 priority;
+ u8 numSGEExt; /* 0x1E 1M IO support */
+ u8 resvd2; /* 0x1F */
};
Mystery priority addition.
--
Martin K. Petersen Oracle Linux Engineering
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