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| author |   Xiang Chen <chenxiang66@hisilicon.com> | 2018-09-24 23:06:33 +0800 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2018-10-16 00:27:04 -0400 |
| commit | 784b46b7cba0ae914dd293f23848c5057c6ba017 (patch) | |
| tree | 77b1c0c19b37fcbd15754210f22111d7d21f314d /drivers/scsi/hisi_sas/hisi_sas.h | |
| parent | scsi: hisi_sas: unmask interrupts ent72 and ent74 (diff) | |
| download | linux-dev-784b46b7cba0ae914dd293f23848c5057c6ba017.tar.xz linux-dev-784b46b7cba0ae914dd293f23848c5057c6ba017.zip | |
scsi: hisi_sas: Use block layer tag instead for IPTT
Currently we use the IPTT defined in LLDD to identify IOs. Actually for
IOs which are from the block layer, they have tags to identify them. So
for those IOs, use tag of the block layer directly, and for IOs which is
not from the block layer (such as internal IOs from libsas/LLDD), reserve
96 IPTTs for them.
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/hisi_sas/hisi_sas.h')
| -rw-r--r-- | drivers/scsi/hisi_sas/hisi_sas.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h index 6c7d2e201abe..0ddb53c8a2e2 100644 --- a/drivers/scsi/hisi_sas/hisi_sas.h +++ b/drivers/scsi/hisi_sas/hisi_sas.h @@ -34,6 +34,7 @@ #define HISI_SAS_MAX_DEVICES HISI_SAS_MAX_ITCT_ENTRIES #define HISI_SAS_RESET_BIT 0 #define HISI_SAS_REJECT_CMD_BIT 1 +#define HISI_SAS_RESERVED_IPTT_CNT 96 #define HISI_SAS_STATUS_BUF_SZ (sizeof(struct hisi_sas_status_buffer)) #define HISI_SAS_COMMAND_TABLE_SZ (sizeof(union hisi_sas_command_table)) @@ -217,7 +218,7 @@ struct hisi_sas_hw { int (*hw_init)(struct hisi_hba *hisi_hba); void (*setup_itct)(struct hisi_hba *hisi_hba, struct hisi_sas_device *device); - int (*slot_index_alloc)(struct hisi_hba *hisi_hba, int *slot_idx, + int (*slot_index_alloc)(struct hisi_hba *hisi_hba, struct domain_device *device); struct hisi_sas_device *(*alloc_dev)(struct domain_device *device); void (*sl_notify)(struct hisi_hba *hisi_hba, int phy_no); |