X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=drivers%2Finfiniband%2Fulp%2Fsrp%2Fib_srp.h;h=c21772317b86957796a1d0163f571c9716285af0;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hp=4e7727df32f12d9f17de6b1032851d600af91ef6;hpb=64ba3f394c830ec48a1c31b53dcae312c56f1604;p=linux-2.6.git

diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h
index 4e7727df3..c21772317 100644
--- a/drivers/infiniband/ulp/srp/ib_srp.h
+++ b/drivers/infiniband/ulp/srp/ib_srp.h
@@ -38,6 +38,7 @@
 #include <linux/types.h>
 #include <linux/list.h>
 #include <linux/mutex.h>
+#include <linux/scatterlist.h>
 
 #include <scsi/scsi_host.h>
 #include <scsi/scsi_cmnd.h>
@@ -45,6 +46,7 @@
 #include <rdma/ib_verbs.h>
 #include <rdma/ib_sa.h>
 #include <rdma/ib_cm.h>
+#include <rdma/ib_fmr_pool.h>
 
 enum {
 	SRP_PATH_REC_TIMEOUT_MS	= 1000,
@@ -54,20 +56,21 @@ enum {
 	SRP_DLID_REDIRECT	= 2,
 
 	SRP_MAX_LUN		= 512,
-	SRP_MAX_IU_LEN		= 256,
+	SRP_DEF_SG_TABLESIZE	= 12,
 
 	SRP_RQ_SHIFT    	= 6,
 	SRP_RQ_SIZE		= 1 << SRP_RQ_SHIFT,
 	SRP_SQ_SIZE		= SRP_RQ_SIZE - 1,
 	SRP_CQ_SIZE		= SRP_SQ_SIZE + SRP_RQ_SIZE,
 
-	SRP_TAG_TSK_MGMT	= 1 << (SRP_RQ_SHIFT + 1)
+	SRP_TAG_TSK_MGMT	= 1 << (SRP_RQ_SHIFT + 1),
+
+	SRP_FMR_SIZE		= 256,
+	SRP_FMR_POOL_SIZE	= 1024,
+	SRP_FMR_DIRTY_SIZE	= SRP_FMR_POOL_SIZE / 4
 };
 
 #define SRP_OP_RECV		(1 << 31)
-#define SRP_MAX_INDIRECT	((SRP_MAX_IU_LEN -			\
-				  sizeof (struct srp_cmd) -		\
-				  sizeof (struct srp_indirect_buf)) / 16)
 
 enum srp_target_state {
 	SRP_TARGET_LIVE,
@@ -76,15 +79,23 @@ enum srp_target_state {
 	SRP_TARGET_REMOVED
 };
 
-struct srp_host {
-	u8			initiator_port_id[16];
+struct srp_device {
+	struct list_head	dev_list;
 	struct ib_device       *dev;
-	u8                      port;
 	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;
+};
+
+struct srp_host {
+	struct srp_device      *dev;
+	u8			port;
 	struct class_device	class_dev;
 	struct list_head	target_list;
-	struct mutex            target_mutex;
+	spinlock_t		target_lock;
 	struct completion	released;
 	struct list_head	list;
 };
@@ -94,9 +105,14 @@ struct srp_request {
 	struct scsi_cmnd       *scmnd;
 	struct srp_iu	       *cmd;
 	struct srp_iu	       *tsk_mgmt;
-	DECLARE_PCI_UNMAP_ADDR(direct_mapping)
+	struct ib_pool_fmr     *fmr;
+	/*
+	 * Fake scatterlist used when scmnd->use_sg==0.  Can be killed
+	 * when the SCSI midlayer no longer generates non-SG commands.
+	 */
+	struct scatterlist	fake_sg;
 	struct completion	done;
-	short			next;
+	short			index;
 	u8			cmd_done;
 	u8			tsk_status;
 };
@@ -105,6 +121,8 @@ struct srp_target_port {
 	__be64			id_ext;
 	__be64			ioc_guid;
 	__be64			service_id;
+	__be64			initiator_ext;
+	u16			io_class;
 	struct srp_host	       *srp_host;
 	struct Scsi_Host       *scsi_host;
 	char			target_name[32];
@@ -121,6 +139,8 @@ struct srp_target_port {
 	int			max_ti_iu_len;
 	s32			req_lim;
 
+	int			zero_req_lim;
+
 	unsigned		rx_head;
 	struct srp_iu	       *rx_ring[SRP_RQ_SIZE];
 
@@ -128,7 +148,7 @@ struct srp_target_port {
 	unsigned		tx_tail;
 	struct srp_iu	       *tx_ring[SRP_SQ_SIZE + 1];
 
-	int			req_head;
+	struct list_head	free_reqs;
 	struct list_head	req_queue;
 	struct srp_request	req_ring[SRP_SQ_SIZE];
 
@@ -141,7 +161,7 @@ struct srp_target_port {
 };
 
 struct srp_iu {
-	dma_addr_t		dma;
+	u64			dma;
 	void		       *buf;
 	size_t			size;
 	enum dma_data_direction	direction;