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IB/iser: Centralize iser completion contexts

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Introduce iser_comp which centralizes all iser completion related
items and is referenced by iser_device and each ib_conn.

Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
This commit is contained in:
Sagi Grimberg
2014-10-01 14:02:07 +03:00
committed by Roland Dreier
parent aea8f4df6d
commit bf17554035
2 changed files with 83 additions and 86 deletions
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35
drivers/infiniband/ulp/iser/iscsi_iser.h
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@@ -213,7 +213,6 @@ struct iser_data_buf {
/* fwd declarations */
struct iser_device;
struct iser_cq_desc;
struct iscsi_iser_task;
struct iscsi_endpoint;
@@ -268,20 +267,34 @@ struct iser_conn;
struct ib_conn;
struct iscsi_iser_task;
/**
* struct iser_comp - iSER completion context
*
* @device: pointer to device handle
* @rx_cq: RX completion queue
* @tx_cq: TX completion queue
* @tasklet: Tasklet handle
* @active_qps: Number of active QPs attached
* to completion context
*/
struct iser_comp {
struct iser_device *device;
struct ib_cq *rx_cq;
struct ib_cq *tx_cq;
struct tasklet_struct tasklet;
int active_qps;
};
struct iser_device {
struct ib_device *ib_device;
struct ib_pd *pd;
struct ib_device_attr dev_attr;
struct ib_cq *rx_cq[ISER_MAX_CQ];
struct ib_cq *tx_cq[ISER_MAX_CQ];
struct ib_mr *mr;
struct tasklet_struct cq_tasklet[ISER_MAX_CQ];
struct ib_event_handler event_handler;
struct list_head ig_list; /* entry in ig devices list */
int refcount;
int cq_active_qps[ISER_MAX_CQ];
int cqs_used;
struct iser_cq_desc *cq_desc;
int comps_used;
struct iser_comp comps[ISER_MAX_CQ];
int (*iser_alloc_rdma_reg_res)(struct ib_conn *ib_conn,
unsigned cmds_max);
void (*iser_free_rdma_reg_res)(struct ib_conn *ib_conn);
@@ -327,6 +340,7 @@ struct fast_reg_descriptor {
* @post_send_buf_count: post send counter
* @rx_wr: receive work request for batch posts
* @device: reference to iser device
* @comp: iser completion context
* @pi_support: Indicate device T10-PI support
* @lock: protects fmr/fastreg pool
* @union.fmr:
@@ -345,7 +359,7 @@ struct ib_conn {
atomic_t post_send_buf_count;
struct ib_recv_wr rx_wr[ISER_MIN_POSTED_RX];
struct iser_device *device;
int cq_index;
struct iser_comp *comp;
bool pi_support;
spinlock_t lock;
union {
@@ -404,11 +418,6 @@ struct iser_page_vec {
int data_size;
};
struct iser_cq_desc {
struct iser_device *device;
int cq_index;
};
struct iser_global {
struct mutex device_list_mutex;/* */
struct list_head device_list; /* all iSER devices */