Commit 071c7783 authored by Roland Dreier's avatar Roland Dreier
Browse files

Merge branch 'external-indirect' of... 

Merge branch 'external-indirect' of git://git.kernel.org/pub/scm/linux/kernel/git/dad/srp-initiator into srp
parents 7b7adc4a be8b9814

drivers/infiniband/ulp/srp/ib_srp.c

+481 −244

File changed.

Preview size limit exceeded, changes collapsed.

drivers/infiniband/ulp/srp/ib_srp.h

+33 −5
Original line number Diff line number Diff line
@@ -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 */