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path: root/drivers/infiniband/ulp/srp/ib_srp.h
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Diffstat (limited to 'drivers/infiniband/ulp/srp/ib_srp.h')
-rw-r--r--drivers/infiniband/ulp/srp/ib_srp.h38
1 files changed, 33 insertions, 5 deletions
diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h
index 9dc6fc3fd894..020caf0c3789 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.h
+++ b/drivers/infiniband/ulp/srp/ib_srp.h
@@ -69,9 +69,13 @@ enum {
SRP_TAG_NO_REQ = ~0U,
SRP_TAG_TSK_MGMT = 1U << 31,
- SRP_FMR_SIZE = 256,
+ SRP_FMR_SIZE = 512,
+ SRP_FMR_MIN_SIZE = 128,
SRP_FMR_POOL_SIZE = 1024,
- SRP_FMR_DIRTY_SIZE = SRP_FMR_POOL_SIZE / 4
+ SRP_FMR_DIRTY_SIZE = SRP_FMR_POOL_SIZE / 4,
+
+ SRP_MAP_ALLOW_FMR = 0,
+ SRP_MAP_NO_FMR = 1,
};
enum srp_target_state {
@@ -93,9 +97,9 @@ struct srp_device {
struct ib_pd *pd;
struct ib_mr *mr;
struct ib_fmr_pool *fmr_pool;
- int fmr_page_shift;
- int fmr_page_size;
u64 fmr_page_mask;
+ int fmr_page_size;
+ int fmr_max_size;
};
struct srp_host {
@@ -112,7 +116,11 @@ struct srp_request {
struct list_head list;
struct scsi_cmnd *scmnd;
struct srp_iu *cmd;
- struct ib_pool_fmr *fmr;
+ struct ib_pool_fmr **fmr_list;
+ u64 *map_page;
+ struct srp_direct_buf *indirect_desc;
+ dma_addr_t indirect_dma_addr;
+ short nfmr;
short index;
};
@@ -130,6 +138,10 @@ struct srp_target_port {
u32 lkey;
u32 rkey;
enum srp_target_state state;
+ unsigned int max_iu_len;
+ unsigned int cmd_sg_cnt;
+ unsigned int indirect_size;
+ bool allow_ext_sg;
/* Everything above this point is used in the hot path of
* command processing. Try to keep them packed into cachelines.
@@ -144,6 +156,7 @@ struct srp_target_port {
struct Scsi_Host *scsi_host;
char target_name[32];
unsigned int scsi_id;
+ unsigned int sg_tablesize;
struct ib_sa_path_rec path;
__be16 orig_dgid[8];
@@ -179,4 +192,19 @@ struct srp_iu {
enum dma_data_direction direction;
};
+struct srp_map_state {
+ struct ib_pool_fmr **next_fmr;
+ struct srp_direct_buf *desc;
+ u64 *pages;
+ dma_addr_t base_dma_addr;
+ u32 fmr_len;
+ u32 total_len;
+ unsigned int npages;
+ unsigned int nfmr;
+ unsigned int ndesc;
+ struct scatterlist *unmapped_sg;
+ int unmapped_index;
+ dma_addr_t unmapped_addr;
+};
+
#endif /* IB_SRP_H */