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path: root/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
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Diffstat (limited to 'drivers/infiniband/hw/cxgb4/iw_cxgb4.h')
-rw-r--r--drivers/infiniband/hw/cxgb4/iw_cxgb4.h83
1 files changed, 69 insertions, 14 deletions
diff --git a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
index 819a30635d53..d730bb735d74 100644
--- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
+++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
@@ -202,18 +202,50 @@ static inline int c4iw_num_stags(struct c4iw_rdev *rdev)
struct c4iw_wr_wait {
struct completion completion;
int ret;
+ struct kref kref;
};
+void _c4iw_free_wr_wait(struct kref *kref);
+
+static inline void c4iw_put_wr_wait(struct c4iw_wr_wait *wr_waitp)
+{
+ pr_debug("wr_wait %p ref before put %u\n", wr_waitp,
+ kref_read(&wr_waitp->kref));
+ WARN_ON(kref_read(&wr_waitp->kref) == 0);
+ kref_put(&wr_waitp->kref, _c4iw_free_wr_wait);
+}
+
+static inline void c4iw_get_wr_wait(struct c4iw_wr_wait *wr_waitp)
+{
+ pr_debug("wr_wait %p ref before get %u\n", wr_waitp,
+ kref_read(&wr_waitp->kref));
+ WARN_ON(kref_read(&wr_waitp->kref) == 0);
+ kref_get(&wr_waitp->kref);
+}
+
static inline void c4iw_init_wr_wait(struct c4iw_wr_wait *wr_waitp)
{
wr_waitp->ret = 0;
init_completion(&wr_waitp->completion);
}
-static inline void c4iw_wake_up(struct c4iw_wr_wait *wr_waitp, int ret)
+static inline void _c4iw_wake_up(struct c4iw_wr_wait *wr_waitp, int ret,
+ bool deref)
{
wr_waitp->ret = ret;
complete(&wr_waitp->completion);
+ if (deref)
+ c4iw_put_wr_wait(wr_waitp);
+}
+
+static inline void c4iw_wake_up_noref(struct c4iw_wr_wait *wr_waitp, int ret)
+{
+ _c4iw_wake_up(wr_waitp, ret, false);
+}
+
+static inline void c4iw_wake_up_deref(struct c4iw_wr_wait *wr_waitp, int ret)
+{
+ _c4iw_wake_up(wr_waitp, ret, true);
}
static inline int c4iw_wait_for_reply(struct c4iw_rdev *rdev,
@@ -230,18 +262,40 @@ static inline int c4iw_wait_for_reply(struct c4iw_rdev *rdev,
ret = wait_for_completion_timeout(&wr_waitp->completion, C4IW_WR_TO);
if (!ret) {
- pr_debug("%s - Device %s not responding (disabling device) - tid %u qpid %u\n",
- func, pci_name(rdev->lldi.pdev), hwtid, qpid);
+ pr_err("%s - Device %s not responding (disabling device) - tid %u qpid %u\n",
+ func, pci_name(rdev->lldi.pdev), hwtid, qpid);
rdev->flags |= T4_FATAL_ERROR;
wr_waitp->ret = -EIO;
+ goto out;
}
-out:
if (wr_waitp->ret)
pr_debug("%s: FW reply %d tid %u qpid %u\n",
pci_name(rdev->lldi.pdev), wr_waitp->ret, hwtid, qpid);
+out:
return wr_waitp->ret;
}
+int c4iw_ofld_send(struct c4iw_rdev *rdev, struct sk_buff *skb);
+
+static inline int c4iw_ref_send_wait(struct c4iw_rdev *rdev,
+ struct sk_buff *skb,
+ struct c4iw_wr_wait *wr_waitp,
+ u32 hwtid, u32 qpid,
+ const char *func)
+{
+ int ret;
+
+ pr_debug("%s wr_wait %p hwtid %u qpid %u\n", func, wr_waitp, hwtid,
+ qpid);
+ c4iw_get_wr_wait(wr_waitp);
+ ret = c4iw_ofld_send(rdev, skb);
+ if (ret) {
+ c4iw_put_wr_wait(wr_waitp);
+ return ret;
+ }
+ return c4iw_wait_for_reply(rdev, wr_waitp, hwtid, qpid, func);
+}
+
enum db_state {
NORMAL = 0,
FLOW_CONTROL = 1,
@@ -394,6 +448,7 @@ struct c4iw_mr {
dma_addr_t mpl_addr;
u32 max_mpl_len;
u32 mpl_len;
+ struct c4iw_wr_wait *wr_waitp;
};
static inline struct c4iw_mr *to_c4iw_mr(struct ib_mr *ibmr)
@@ -407,6 +462,7 @@ struct c4iw_mw {
struct sk_buff *dereg_skb;
u64 kva;
struct tpt_attributes attr;
+ struct c4iw_wr_wait *wr_waitp;
};
static inline struct c4iw_mw *to_c4iw_mw(struct ib_mw *ibmw)
@@ -423,6 +479,7 @@ struct c4iw_cq {
spinlock_t comp_handler_lock;
atomic_t refcnt;
wait_queue_head_t wait;
+ struct c4iw_wr_wait *wr_waitp;
};
static inline struct c4iw_cq *to_c4iw_cq(struct ib_cq *ibcq)
@@ -484,6 +541,7 @@ struct c4iw_qp {
int sq_sig_all;
struct work_struct free_work;
struct c4iw_ucontext *ucontext;
+ struct c4iw_wr_wait *wr_waitp;
};
static inline struct c4iw_qp *to_c4iw_qp(struct ib_qp *ibqp)
@@ -537,8 +595,7 @@ static inline struct c4iw_mm_entry *remove_mmap(struct c4iw_ucontext *ucontext,
if (mm->key == key && mm->len == len) {
list_del_init(&mm->entry);
spin_unlock(&ucontext->mmap_lock);
- pr_debug("%s key 0x%x addr 0x%llx len %d\n",
- __func__, key,
+ pr_debug("key 0x%x addr 0x%llx len %d\n", key,
(unsigned long long)mm->addr, mm->len);
return mm;
}
@@ -551,8 +608,8 @@ static inline void insert_mmap(struct c4iw_ucontext *ucontext,
struct c4iw_mm_entry *mm)
{
spin_lock(&ucontext->mmap_lock);
- pr_debug("%s key 0x%x addr 0x%llx len %d\n",
- __func__, mm->key, (unsigned long long)mm->addr, mm->len);
+ pr_debug("key 0x%x addr 0x%llx len %d\n",
+ mm->key, (unsigned long long)mm->addr, mm->len);
list_add_tail(&mm->entry, &ucontext->mmaps);
spin_unlock(&ucontext->mmap_lock);
}
@@ -671,16 +728,14 @@ enum c4iw_mmid_state {
#define MPA_V2_IRD_ORD_MASK 0x3FFF
#define c4iw_put_ep(ep) { \
- pr_debug("put_ep (via %s:%u) ep %p refcnt %d\n", \
- __func__, __LINE__, \
+ pr_debug("put_ep ep %p refcnt %d\n", \
ep, kref_read(&((ep)->kref))); \
WARN_ON(kref_read(&((ep)->kref)) < 1); \
kref_put(&((ep)->kref), _c4iw_free_ep); \
}
#define c4iw_get_ep(ep) { \
- pr_debug("get_ep (via %s:%u) ep %p, refcnt %d\n", \
- __func__, __LINE__, \
+ pr_debug("get_ep ep %p, refcnt %d\n", \
ep, kref_read(&((ep)->kref))); \
kref_get(&((ep)->kref)); \
}
@@ -841,7 +896,7 @@ struct c4iw_ep_common {
struct mutex mutex;
struct sockaddr_storage local_addr;
struct sockaddr_storage remote_addr;
- struct c4iw_wr_wait wr_wait;
+ struct c4iw_wr_wait *wr_waitp;
unsigned long flags;
unsigned long history;
};
@@ -990,7 +1045,6 @@ u32 c4iw_pblpool_alloc(struct c4iw_rdev *rdev, int size);
void c4iw_pblpool_free(struct c4iw_rdev *rdev, u32 addr, int size);
u32 c4iw_ocqp_pool_alloc(struct c4iw_rdev *rdev, int size);
void c4iw_ocqp_pool_free(struct c4iw_rdev *rdev, u32 addr, int size);
-int c4iw_ofld_send(struct c4iw_rdev *rdev, struct sk_buff *skb);
void c4iw_flush_hw_cq(struct c4iw_cq *chp);
void c4iw_count_rcqes(struct t4_cq *cq, struct t4_wq *wq, int *count);
int c4iw_ep_disconnect(struct c4iw_ep *ep, int abrupt, gfp_t gfp);
@@ -1018,5 +1072,6 @@ extern int db_fc_threshold;
extern int db_coalescing_threshold;
extern int use_dsgl;
void c4iw_invalidate_mr(struct c4iw_dev *rhp, u32 rkey);
+struct c4iw_wr_wait *c4iw_alloc_wr_wait(gfp_t gfp);
#endif
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