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scsi: aacraid: Implement DropIO sync command

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IOP_RESET takes a long time to complete. If controller is in a state
where we can bring it back with init struct, send a DropIO sync command
instead.

 - If controller is faulted perform standard IOP_RESET in aac_srcv_init.

 - If controller is not faulted get adapter properties and extended
   properties.

 - Update the sa_firmware variable and determine if DropIO request is
   supported.

 - Issue DropIO request, and get the number of outstanding commands.

 - If all commands are complete with success (CT_OK), consider IOP_RESET
   is complete.

 - If any commands timeout, Perform the IOP_RESET.

Signed-off-by: Prasad B Munirathnam <prasad.munirathnam@microsemi.com>
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Raghava Aditya Renukunta 2018-02-07 08:40:56 -08:00 • committed by Martin K. Petersen
parent a8db6140d7
commit 44f1ce7d2f
2 changed files with 159 additions and 6 deletions
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4
drivers/scsi/aacraid/aacraid.h
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@ -1528,6 +1528,7 @@ struct aac_bus_info_response {
#define AAC_COMM_MESSAGE_TYPE3 5
#define AAC_EXTOPT_SA_FIRMWARE cpu_to_le32(1<<1)
#define AAC_EXTOPT_SOFT_RESET cpu_to_le32(1<<16)
/* MSIX context */
struct aac_msix_ctx {
@ -1662,6 +1663,7 @@ struct aac_dev
u8 raw_io_64;
u8 printf_enabled;
u8 in_reset;
u8 in_soft_reset;
u8 msi;
u8 sa_firmware;
int management_fib_count;
@ -2504,6 +2506,7 @@ struct aac_hba_info {
#define RCV_TEMP_READINGS 0x00000025
#define GET_COMM_PREFERRED_SETTINGS 0x00000026
#define IOP_RESET_FW_FIB_DUMP 0x00000034
#define DROP_IO 0x00000035
#define IOP_RESET 0x00001000
#define IOP_RESET_ALWAYS 0x00001001
#define RE_INIT_ADAPTER 0x000000ee
@ -2539,6 +2542,7 @@ struct aac_hba_info {
#define FLASH_UPD_PENDING 0x00002000
#define FLASH_UPD_SUCCESS 0x00004000
#define FLASH_UPD_FAILED 0x00008000
#define INVALID_OMR 0xffffffff
#define FWUPD_TIMEOUT (5 * 60)
/*