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Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband

Browse Source 
* 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband:
  IPoIB: Convert to NAPI
  IB: Return "maybe missed event" hint from ib_req_notify_cq()
  IB: Add CQ comp_vector support
  IB/ipath: Fix a race condition when generating ACKs
  IB/ipath: Fix two more spin lock problems
  IB/fmr_pool: Add prefix to all printks
  IB/srp: Set proc_name
  IB/srp: Add orig_dgid sysfs attribute to scsi_host
  IPoIB/cm: Don't crash if remote side uses one QP for both directions
  RDMA/cxgb3: Support for new abort logic
  RDMA/cxgb3: Initialize cpu_idx field in cpl_close_listserv_req message
  RDMA/cxgb3: Fail qp creation if the requested max_inline is too large
  RDMA/cxgb3: Fix TERM codes
  IPoIB/cm: Fix error handling in ipoib_cm_dev_open()
  IB/ipath: Don't corrupt pending mmap list when unmapped objects are freed
  IB/mthca: Work around kernel QP starvation
  IB/ipath: Don't put QP in timeout queue if waiting to send
  IB/ipath: Don't call spin_lock_irq() from interrupt context
This commit is contained in:
Linus Torvalds 2007-05-07 12:18:21 -07:00
commit 972d45fb43
40 changed files with 511 additions and 242 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
drivers/infiniband/core/fmr_pool.c
View File

@ -43,6 +43,8 @@
#include "core_priv.h"
#define PFX "fmr_pool: "
enum {
IB_FMR_MAX_REMAPS = 32,
@ -150,7 +152,7 @@ static void ib_fmr_batch_release(struct ib_fmr_pool *pool)
#ifdef DEBUG
if (fmr->ref_count !=0) {
printk(KERN_WARNING "Unmapping FMR 0x%08x with ref count %d",
printk(KERN_WARNING PFX "Unmapping FMR 0x%08x with ref count %d",
fmr, fmr->ref_count);
}
#endif
@ -168,7 +170,7 @@ static void ib_fmr_batch_release(struct ib_fmr_pool *pool)
ret = ib_unmap_fmr(&fmr_list);
if (ret)
printk(KERN_WARNING "ib_unmap_fmr returned %d", ret);
printk(KERN_WARNING PFX "ib_unmap_fmr returned %d", ret);
spin_lock_irq(&pool->pool_lock);
list_splice(&unmap_list, &pool->free_list);
@ -226,20 +228,20 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd *pd,
device = pd->device;
if (!device->alloc_fmr || !device->dealloc_fmr ||
!device->map_phys_fmr || !device->unmap_fmr) {
printk(KERN_WARNING "Device %s does not support fast memory regions",
printk(KERN_INFO PFX "Device %s does not support FMRs\n",
device->name);
return ERR_PTR(-ENOSYS);
}
attr = kmalloc(sizeof *attr, GFP_KERNEL);
if (!attr) {
printk(KERN_WARNING "couldn't allocate device attr struct");
printk(KERN_WARNING PFX "couldn't allocate device attr struct");
return ERR_PTR(-ENOMEM);
}
ret = ib_query_device(device, attr);
if (ret) {
printk(KERN_WARNING "couldn't query device");
printk(KERN_WARNING PFX "couldn't query device: %d", ret);
kfree(attr);
return ERR_PTR(ret);
}
@ -253,7 +255,7 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd *pd,
pool = kmalloc(sizeof *pool, GFP_KERNEL);
if (!pool) {
printk(KERN_WARNING "couldn't allocate pool struct");
printk(KERN_WARNING PFX "couldn't allocate pool struct");
return ERR_PTR(-ENOMEM);
}
@ -270,7 +272,7 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd *pd,
kmalloc(IB_FMR_HASH_SIZE * sizeof *pool->cache_bucket,
GFP_KERNEL);
if (!pool->cache_bucket) {
printk(KERN_WARNING "Failed to allocate cache in pool");
printk(KERN_WARNING PFX "Failed to allocate cache in pool");
ret = -ENOMEM;
goto out_free_pool;
}
@ -294,7 +296,7 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd *pd,
"ib_fmr(%s)",
device->name);
if (IS_ERR(pool->thread)) {
printk(KERN_WARNING "couldn't start cleanup thread");
printk(KERN_WARNING PFX "couldn't start cleanup thread");
ret = PTR_ERR(pool->thread);
goto out_free_pool;
}
@ -311,8 +313,8 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd *pd,
fmr = kmalloc(sizeof *fmr + params->max_pages_per_fmr * sizeof (u64),
GFP_KERNEL);
if (!fmr) {
printk(KERN_WARNING "failed to allocate fmr struct "
"for FMR %d", i);
printk(KERN_WARNING PFX "failed to allocate fmr "
"struct for FMR %d", i);
goto out_fail;
}
@ -323,7 +325,8 @@ struct ib_fmr_pool *ib_create_fmr_pool(struct ib_pd *pd,
fmr->fmr = ib_alloc_fmr(pd, params->access, &fmr_attr);
if (IS_ERR(fmr->fmr)) {
printk(KERN_WARNING "fmr_create failed for FMR %d", i);
printk(KERN_WARNING PFX "fmr_create failed "
"for FMR %d", i);
kfree(fmr);
goto out_fail;
}
@ -378,7 +381,7 @@ void ib_destroy_fmr_pool(struct ib_fmr_pool *pool)
}
if (i < pool->pool_size)
printk(KERN_WARNING "pool still has %d regions registered",
printk(KERN_WARNING PFX "pool still has %d regions registered",
pool->pool_size - i);
kfree(pool->cache_bucket);
@ -463,8 +466,7 @@ struct ib_pool_fmr *ib_fmr_pool_map_phys(struct ib_fmr_pool *pool_handle,
list_add(&fmr->list, &pool->free_list);
spin_unlock_irqrestore(&pool->pool_lock, flags);
printk(KERN_WARNING "fmr_map returns %d\n",
result);
printk(KERN_WARNING PFX "fmr_map returns %d\n", result);
return ERR_PTR(result);
}
@ -516,7 +518,7 @@ int ib_fmr_pool_unmap(struct ib_pool_fmr *fmr)
#ifdef DEBUG
if (fmr->ref_count < 0)
printk(KERN_WARNING "FMR %p has ref count %d < 0",
printk(KERN_WARNING PFX "FMR %p has ref count %d < 0",
fmr, fmr->ref_count);
#endif

2
drivers/infiniband/core/mad.c
View File

@ -2771,7 +2771,7 @@ static int ib_mad_port_open(struct ib_device *device,
cq_size = (IB_MAD_QP_SEND_SIZE + IB_MAD_QP_RECV_SIZE) * 2;
port_priv->cq = ib_create_cq(port_priv->device,
ib_mad_thread_completion_handler,
NULL, port_priv, cq_size);
NULL, port_priv, cq_size, 0);
if (IS_ERR(port_priv->cq)) {
printk(KERN_ERR PFX "Couldn't create ib_mad CQ\n");
ret = PTR_ERR(port_priv->cq);

1
drivers/infiniband/core/uverbs_cmd.c
View File

@ -802,6 +802,7 @@ ssize_t ib_uverbs_create_cq(struct ib_uverbs_file *file,
INIT_LIST_HEAD(&obj->async_list);
cq = file->device->ib_dev->create_cq(file->device->ib_dev, cmd.cqe,
cmd.comp_vector,
file->ucontext, &udata);
if (IS_ERR(cq)) {
ret = PTR_ERR(cq);

2
drivers/infiniband/core/uverbs_main.c
View File

@ -752,7 +752,7 @@ static void ib_uverbs_add_one(struct ib_device *device)
spin_unlock(&map_lock);
uverbs_dev->ib_dev = device;
uverbs_dev->num_comp_vectors = 1;
uverbs_dev->num_comp_vectors = device->num_comp_vectors;
uverbs_dev->dev = cdev_alloc();
if (!uverbs_dev->dev)

4
drivers/infiniband/core/verbs.c
View File

@ -609,11 +609,11 @@ EXPORT_SYMBOL(ib_destroy_qp);
struct ib_cq *ib_create_cq(struct ib_device *device,
ib_comp_handler comp_handler,
void (*event_handler)(struct ib_event *, void *),
void *cq_context, int cqe)
void *cq_context, int cqe, int comp_vector)
{
struct ib_cq *cq;
cq = device->create_cq(device, cqe, NULL, NULL);
cq = device->create_cq(device, cqe, comp_vector, NULL, NULL);
if (!IS_ERR(cq)) {
cq->device = device;

2
drivers/infiniband/hw/amso1100/c2.h
View File

@ -519,7 +519,7 @@ extern void c2_free_cq(struct c2_dev *c2dev, struct c2_cq *cq);
extern void c2_cq_event(struct c2_dev *c2dev, u32 mq_index);
extern void c2_cq_clean(struct c2_dev *c2dev, struct c2_qp *qp, u32 mq_index);
extern int c2_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry);
extern int c2_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify notify);
extern int c2_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags);
/* CM */
extern int c2_llp_connect(struct iw_cm_id *cm_id,

16
drivers/infiniband/hw/amso1100/c2_cq.c
View File

@ -217,17 +217,19 @@ int c2_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry)
return npolled;
}
int c2_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify notify)
int c2_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags notify_flags)
{
struct c2_mq_shared __iomem *shared;
struct c2_cq *cq;
unsigned long flags;
int ret = 0;
cq = to_c2cq(ibcq);
shared = cq->mq.peer;
if (notify == IB_CQ_NEXT_COMP)
if ((notify_flags & IB_CQ_SOLICITED_MASK) == IB_CQ_NEXT_COMP)
writeb(C2_CQ_NOTIFICATION_TYPE_NEXT, &shared->notification_type);
else if (notify == IB_CQ_SOLICITED)
else if ((notify_flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED)
writeb(C2_CQ_NOTIFICATION_TYPE_NEXT_SE, &shared->notification_type);
else
return -EINVAL;
@ -241,7 +243,13 @@ int c2_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify notify)
*/
readb(&shared->armed);
return 0;
if (notify_flags & IB_CQ_REPORT_MISSED_EVENTS) {
spin_lock_irqsave(&cq->lock, flags);
ret = !c2_mq_empty(&cq->mq);
spin_unlock_irqrestore(&cq->lock, flags);
}
return ret;
}
static void c2_free_cq_buf(struct c2_dev *c2dev, struct c2_mq *mq)

3
drivers/infiniband/hw/amso1100/c2_provider.c
View File

@ -290,7 +290,7 @@ static int c2_destroy_qp(struct ib_qp *ib_qp)
return 0;
}
static struct ib_cq *c2_create_cq(struct ib_device *ibdev, int entries,
static struct ib_cq *c2_create_cq(struct ib_device *ibdev, int entries, int vector,
struct ib_ucontext *context,
struct ib_udata *udata)
{
@ -795,6 +795,7 @@ int c2_register_device(struct c2_dev *dev)
memset(&dev->ibdev.node_guid, 0, sizeof(dev->ibdev.node_guid));
memcpy(&dev->ibdev.node_guid, dev->pseudo_netdev->dev_addr, 6);
dev->ibdev.phys_port_cnt = 1;
dev->ibdev.num_comp_vectors = 1;
dev->ibdev.dma_device = &dev->pcidev->dev;
dev->ibdev.query_device = c2_query_device;
dev->ibdev.query_port = c2_query_port;

3
drivers/infiniband/hw/cxgb3/cxio_hal.c
View File

@ -114,7 +114,10 @@ int cxio_hal_cq_op(struct cxio_rdev *rdev_p, struct t3_cq *cq,
return -EIO;
}
}
return 1;
}
return 0;
}

1
drivers/infiniband/hw/cxgb3/cxio_wr.h
View File

@ -38,6 +38,7 @@
#include "firmware_exports.h"
#define T3_MAX_SGE 4
#define T3_MAX_INLINE 64
#define Q_EMPTY(rptr,wptr) ((rptr)==(wptr))
#define Q_FULL(rptr,wptr,size_log2) ( (((wptr)-(rptr))>>(size_log2)) && \

19
drivers/infiniband/hw/cxgb3/iwch_cm.c
View File

@ -1109,6 +1109,15 @@ static int abort_rpl(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
PDBG("%s ep %p\n", __FUNCTION__, ep);
/*
* We get 2 abort replies from the HW. The first one must
* be ignored except for scribbling that we need one more.
*/
if (!(ep->flags & ABORT_REQ_IN_PROGRESS)) {
ep->flags |= ABORT_REQ_IN_PROGRESS;
return CPL_RET_BUF_DONE;
}
close_complete_upcall(ep);
state_set(&ep->com, DEAD);
release_ep_resources(ep);
@ -1189,6 +1198,7 @@ static int listen_stop(struct iwch_listen_ep *ep)
}
req = (struct cpl_close_listserv_req *) skb_put(skb, sizeof(*req));
req->wr.wr_hi = htonl(V_WR_OP(FW_WROPCODE_FORWARD));
req->cpu_idx = 0;
OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_CLOSE_LISTSRV_REQ, ep->stid));
skb->priority = 1;
ep->com.tdev->send(ep->com.tdev, skb);
@ -1475,6 +1485,15 @@ static int peer_abort(struct t3cdev *tdev, struct sk_buff *skb, void *ctx)
int ret;
int state;
/*
* We get 2 peer aborts from the HW. The first one must
* be ignored except for scribbling that we need one more.
*/
if (!(ep->flags & PEER_ABORT_IN_PROGRESS)) {
ep->flags |= PEER_ABORT_IN_PROGRESS;
return CPL_RET_BUF_DONE;
}
if (is_neg_adv_abort(req->status)) {
PDBG("%s neg_adv_abort ep %p tid %d\n", __FUNCTION__, ep,
ep->hwtid);

6
drivers/infiniband/hw/cxgb3/iwch_cm.h
View File

@ -143,6 +143,11 @@ enum iwch_ep_state {
DEAD,
};
enum iwch_ep_flags {
PEER_ABORT_IN_PROGRESS = (1 << 0),
ABORT_REQ_IN_PROGRESS = (1 << 1),
};
struct iwch_ep_common {
struct iw_cm_id *cm_id;
struct iwch_qp *qp;
@ -181,6 +186,7 @@ struct iwch_ep {
u16 plen;
u32 ird;
u32 ord;
u32 flags;
};
static inline struct iwch_ep *to_ep(struct iw_cm_id *cm_id)

14
drivers/infiniband/hw/cxgb3/iwch_provider.c
View File

@ -139,7 +139,7 @@ static int iwch_destroy_cq(struct ib_cq *ib_cq)
return 0;
}
static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries,
static struct ib_cq *iwch_create_cq(struct ib_device *ibdev, int entries, int vector,
struct ib_ucontext *ib_context,
struct ib_udata *udata)
{
@ -292,7 +292,7 @@ static int iwch_resize_cq(struct ib_cq *cq, int cqe, struct ib_udata *udata)
#endif
}
static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify notify)
static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
{
struct iwch_dev *rhp;
struct iwch_cq *chp;
@ -303,7 +303,7 @@ static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify notify)
chp = to_iwch_cq(ibcq);
rhp = chp->rhp;
if (notify == IB_CQ_SOLICITED)
if ((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED)
cq_op = CQ_ARM_SE;
else
cq_op = CQ_ARM_AN;
@ -317,9 +317,11 @@ static int iwch_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify notify)
PDBG("%s rptr 0x%x\n", __FUNCTION__, chp->cq.rptr);
err = cxio_hal_cq_op(&rhp->rdev, &chp->cq, cq_op, 0);
spin_unlock_irqrestore(&chp->lock, flag);
if (err)
if (err < 0)
printk(KERN_ERR MOD "Error %d rearming CQID 0x%x\n", err,
chp->cq.cqid);
if (err > 0 && !(flags & IB_CQ_REPORT_MISSED_EVENTS))
err = 0;
return err;
}
@ -780,6 +782,9 @@ static struct ib_qp *iwch_create_qp(struct ib_pd *pd,
if (rqsize > T3_MAX_RQ_SIZE)
return ERR_PTR(-EINVAL);
if (attrs->cap.max_inline_data > T3_MAX_INLINE)
return ERR_PTR(-EINVAL);
/*
* NOTE: The SQ and total WQ sizes don't need to be
* a power of two. However, all the code assumes
@ -1107,6 +1112,7 @@ int iwch_register_device(struct iwch_dev *dev)
dev->ibdev.node_type = RDMA_NODE_RNIC;
memcpy(dev->ibdev.node_desc, IWCH_NODE_DESC, sizeof(IWCH_NODE_DESC));
dev->ibdev.phys_port_cnt = dev->rdev.port_info.nports;
dev->ibdev.num_comp_vectors = 1;
dev->ibdev.dma_device = &(dev->rdev.rnic_info.pdev->dev);
dev->ibdev.query_device = iwch_query_device;
dev->ibdev.query_port = iwch_query_port;

71
drivers/infiniband/hw/cxgb3/iwch_qp.c
View File

@ -471,43 +471,62 @@ int iwch_bind_mw(struct ib_qp *qp,
return err;
}
static void build_term_codes(int t3err, u8 *layer_type, u8 *ecode, int tagged)
static inline void build_term_codes(struct respQ_msg_t *rsp_msg,
u8 *layer_type, u8 *ecode)
{
switch (t3err) {
int status = TPT_ERR_INTERNAL_ERR;
int tagged = 0;
int opcode = -1;
int rqtype = 0;
int send_inv = 0;
if (rsp_msg) {
status = CQE_STATUS(rsp_msg->cqe);
opcode = CQE_OPCODE(rsp_msg->cqe);
rqtype = RQ_TYPE(rsp_msg->cqe);
send_inv = (opcode == T3_SEND_WITH_INV) ||
(opcode == T3_SEND_WITH_SE_INV);
tagged = (opcode == T3_RDMA_WRITE) ||
(rqtype && (opcode == T3_READ_RESP));
}
switch (status) {
case TPT_ERR_STAG:
if (tagged == 1) {
*layer_type = LAYER_DDP|DDP_TAGGED_ERR;
*ecode = DDPT_INV_STAG;
} else if (tagged == 2) {
if (send_inv) {
*layer_type = LAYER_RDMAP|RDMAP_REMOTE_OP;
*ecode = RDMAP_CANT_INV_STAG;
} else {
*layer_type = LAYER_RDMAP|RDMAP_REMOTE_PROT;
*ecode = RDMAP_INV_STAG;
}
break;
case TPT_ERR_PDID:
case TPT_ERR_QPID:
case TPT_ERR_ACCESS:
if (tagged == 1) {
*layer_type = LAYER_DDP|DDP_TAGGED_ERR;
*ecode = DDPT_STAG_NOT_ASSOC;
} else if (tagged == 2) {
*layer_type = LAYER_RDMAP|RDMAP_REMOTE_PROT;
*layer_type = LAYER_RDMAP|RDMAP_REMOTE_PROT;
if ((opcode == T3_SEND_WITH_INV) ||
(opcode == T3_SEND_WITH_SE_INV))
*ecode = RDMAP_CANT_INV_STAG;
else
*ecode = RDMAP_STAG_NOT_ASSOC;
}
break;
case TPT_ERR_QPID:
*layer_type = LAYER_RDMAP|RDMAP_REMOTE_PROT;
*ecode = RDMAP_STAG_NOT_ASSOC;
break;
case TPT_ERR_ACCESS:
*layer_type = LAYER_RDMAP|RDMAP_REMOTE_PROT;
*ecode = RDMAP_ACC_VIOL;
break;
case TPT_ERR_WRAP:
*layer_type = LAYER_RDMAP|RDMAP_REMOTE_PROT;
*ecode = RDMAP_TO_WRAP;
break;
case TPT_ERR_BOUND:
if (tagged == 1) {
if (tagged) {
*layer_type = LAYER_DDP|DDP_TAGGED_ERR;
*ecode = DDPT_BASE_BOUNDS;
} else if (tagged == 2) {
} else {
*layer_type = LAYER_RDMAP|RDMAP_REMOTE_PROT;
*ecode = RDMAP_BASE_BOUNDS;
} else {
*layer_type = LAYER_DDP|DDP_UNTAGGED_ERR;
*ecode = DDPU_MSG_TOOBIG;
}
break;
case TPT_ERR_INVALIDATE_SHARED_MR:
@ -591,8 +610,6 @@ int iwch_post_terminate(struct iwch_qp *qhp, struct respQ_msg_t *rsp_msg)
{
union t3_wr *wqe;
struct terminate_message *term;
int status;
int tagged = 0;
struct sk_buff *skb;
PDBG("%s %d\n", __FUNCTION__, __LINE__);
@ -610,17 +627,7 @@ int iwch_post_terminate(struct iwch_qp *qhp, struct respQ_msg_t *rsp_msg)
/* immediate data starts here. */
term = (struct terminate_message *)wqe->send.sgl;
if (rsp_msg) {
status = CQE_STATUS(rsp_msg->cqe);
if (CQE_OPCODE(rsp_msg->cqe) == T3_RDMA_WRITE)
tagged = 1;
if ((CQE_OPCODE(rsp_msg->cqe) == T3_READ_REQ) ||
(CQE_OPCODE(rsp_msg->cqe) == T3_READ_RESP))
tagged = 2;
} else {
status = TPT_ERR_INTERNAL_ERR;
}
build_term_codes(status, &term->layer_etype, &term->ecode, tagged);
build_term_codes(rsp_msg, &term->layer_etype, &term->ecode);
build_fw_riwrh((void *)wqe, T3_WR_SEND,
T3_COMPLETION_FLAG | T3_NOTIFY_FLAG, 1,
qhp->ep->hwtid, 5);

2
drivers/infiniband/hw/ehca/ehca_cq.c
View File

@ -113,7 +113,7 @@ struct ehca_qp* ehca_cq_get_qp(struct ehca_cq *cq, int real_qp_num)
return ret;
}
struct ib_cq *ehca_create_cq(struct ib_device *device, int cqe,
struct ib_cq *ehca_create_cq(struct ib_device *device, int cqe, int comp_vector,
struct ib_ucontext *context,
struct ib_udata *udata)
{

4
drivers/infiniband/hw/ehca/ehca_iverbs.h
View File

@ -123,7 +123,7 @@ int ehca_destroy_eq(struct ehca_shca *shca, struct ehca_eq *eq);
void *ehca_poll_eq(struct ehca_shca *shca, struct ehca_eq *eq);
struct ib_cq *ehca_create_cq(struct ib_device *device, int cqe,
struct ib_cq *ehca_create_cq(struct ib_device *device, int cqe, int comp_vector,
struct ib_ucontext *context,
struct ib_udata *udata);
@ -135,7 +135,7 @@ int ehca_poll_cq(struct ib_cq *cq, int num_entries, struct ib_wc *wc);
int ehca_peek_cq(struct ib_cq *cq, int wc_cnt);
int ehca_req_notify_cq(struct ib_cq *cq, enum ib_cq_notify cq_notify);
int ehca_req_notify_cq(struct ib_cq *cq, enum ib_cq_notify_flags notify_flags);
struct ib_qp *ehca_create_qp(struct ib_pd *pd,
struct ib_qp_init_attr *init_attr,

3
drivers/infiniband/hw/ehca/ehca_main.c
View File

@ -313,6 +313,7 @@ int ehca_init_device(struct ehca_shca *shca)
shca->ib_device.node_type = RDMA_NODE_IB_CA;
shca->ib_device.phys_port_cnt = shca->num_ports;
shca->ib_device.num_comp_vectors = 1;
shca->ib_device.dma_device = &shca->ibmebus_dev->ofdev.dev;
shca->ib_device.query_device = ehca_query_device;
shca->ib_device.query_port = ehca_query_port;
@ -375,7 +376,7 @@ static int ehca_create_aqp1(struct ehca_shca *shca, u32 port)
return -EPERM;
}
ibcq = ib_create_cq(&shca->ib_device, NULL, NULL, (void*)(-1), 10);
ibcq = ib_create_cq(&shca->ib_device, NULL, NULL, (void*)(-1), 10, 0);
if (IS_ERR(ibcq)) {
ehca_err(&shca->ib_device, "Cannot create AQP1 CQ.");
return PTR_ERR(ibcq);

14
drivers/infiniband/hw/ehca/ehca_reqs.c
View File

@ -634,11 +634,13 @@ poll_cq_exit0:
return ret;
}
int ehca_req_notify_cq(struct ib_cq *cq, enum ib_cq_notify cq_notify)
int ehca_req_notify_cq(struct ib_cq *cq, enum ib_cq_notify_flags notify_flags)
{
struct ehca_cq *my_cq = container_of(cq, struct ehca_cq, ib_cq);
unsigned long spl_flags;
int ret = 0;
switch (cq_notify) {
switch (notify_flags & IB_CQ_SOLICITED_MASK) {
case IB_CQ_SOLICITED:
hipz_set_cqx_n0(my_cq, 1);
break;
@ -649,5 +651,11 @@ int ehca_req_notify_cq(struct ib_cq *cq, enum ib_cq_notify cq_notify)
return -EINVAL;
}
return 0;
if (notify_flags & IB_CQ_REPORT_MISSED_EVENTS) {
spin_lock_irqsave(&my_cq->spinlock, spl_flags);
ret = ipz_qeit_is_valid(&my_cq->ipz_queue);
spin_unlock_irqrestore(&my_cq->spinlock, spl_flags);
}
return ret;
}

8
drivers/infiniband/hw/ehca/ipz_pt_fn.h
View File

@ -140,6 +140,14 @@ static inline void *ipz_qeit_get_inc_valid(struct ipz_queue *queue)
return cqe;
}
static inline int ipz_qeit_is_valid(struct ipz_queue *queue)
{
struct ehca_cqe *cqe = ipz_qeit_get(queue);
u32 cqe_flags = cqe->cqe_flags;
return cqe_flags >> 7 == (queue->toggle_state & 1);
}
/*
* returns and resets Queue Entry iterator
* returns address (kv) of first Queue Entry

70
drivers/infiniband/hw/ipath/ipath_cq.c
View File

@ -204,7 +204,7 @@ static void send_complete(unsigned long data)
*
* Called by ib_create_cq() in the generic verbs code.
*/
struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries,
struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries, int comp_vector,
struct ib_ucontext *context,
struct ib_udata *udata)
{
@ -243,33 +243,21 @@ struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries,
* See ipath_mmap() for details.
*/
if (udata && udata->outlen >= sizeof(__u64)) {
struct ipath_mmap_info *ip;
__u64 offset = (__u64) wc;
int err;
u32 s = sizeof *wc + sizeof(struct ib_wc) * entries;
err = ib_copy_to_udata(udata, &offset, sizeof(offset));
if (err) {
ret = ERR_PTR(err);
goto bail_wc;
}
/* Allocate info for ipath_mmap(). */
ip = kmalloc(sizeof(*ip), GFP_KERNEL);
if (!ip) {
cq->ip = ipath_create_mmap_info(dev, s, context, wc);
if (!cq->ip) {
ret = ERR_PTR(-ENOMEM);
goto bail_wc;
}
cq->ip = ip;
ip->context = context;
ip->obj = wc;
kref_init(&ip->ref);
ip->mmap_cnt = 0;
ip->size = PAGE_ALIGN(sizeof(*wc) +
sizeof(struct ib_wc) * entries);
spin_lock_irq(&dev->pending_lock);
ip->next = dev->pending_mmaps;
dev->pending_mmaps = ip;
spin_unlock_irq(&dev->pending_lock);
err = ib_copy_to_udata(udata, &cq->ip->offset,
sizeof(cq->ip->offset));
if (err) {
ret = ERR_PTR(err);
goto bail_ip;
}
} else
cq->ip = NULL;
@ -277,12 +265,18 @@ struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries,
if (dev->n_cqs_allocated == ib_ipath_max_cqs) {
spin_unlock(&dev->n_cqs_lock);
ret = ERR_PTR(-ENOMEM);
goto bail_wc;
goto bail_ip;
}
dev->n_cqs_allocated++;
spin_unlock(&dev->n_cqs_lock);
if (cq->ip) {
spin_lock_irq(&dev->pending_lock);
list_add(&cq->ip->pending_mmaps, &dev->pending_mmaps);
spin_unlock_irq(&dev->pending_lock);
}
/*
* ib_create_cq() will initialize cq->ibcq except for cq->ibcq.cqe.
* The number of entries should be >= the number requested or return
@ -301,12 +295,12 @@ struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries,
goto done;
bail_ip:
kfree(cq->ip);
bail_wc:
vfree(wc);
bail_cq:
kfree(cq);
done:
return ret;
}
@ -340,17 +334,18 @@ int ipath_destroy_cq(struct ib_cq *ibcq)
/**
* ipath_req_notify_cq - change the notification type for a completion queue
* @ibcq: the completion queue
* @notify: the type of notification to request
* @notify_flags: the type of notification to request
*
* Returns 0 for success.
*
* This may be called from interrupt context. Also called by
* ib_req_notify_cq() in the generic verbs code.
*/
int ipath_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify notify)
int ipath_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags notify_flags)
{
struct ipath_cq *cq = to_icq(ibcq);
unsigned long flags;
int ret = 0;
spin_lock_irqsave(&cq->lock, flags);
/*
@ -358,9 +353,15 @@ int ipath_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify notify)
* any other transitions (see C11-31 and C11-32 in ch. 11.4.2.2).
*/
if (cq->notify != IB_CQ_NEXT_COMP)
cq->notify = notify;
cq->notify = notify_flags & IB_CQ_SOLICITED_MASK;
if ((notify_flags & IB_CQ_REPORT_MISSED_EVENTS) &&
cq->queue->head != cq->queue->tail)
ret = 1;
spin_unlock_irqrestore(&cq->lock, flags);
return 0;
return ret;
}
/**
@ -443,13 +444,12 @@ int ipath_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata)
if (cq->ip) {
struct ipath_ibdev *dev = to_idev(ibcq->device);
struct ipath_mmap_info *ip = cq->ip;
u32 s = sizeof *wc + sizeof(struct ib_wc) * cqe;
ip->obj = wc;
ip->size = PAGE_ALIGN(sizeof(*wc) +
sizeof(struct ib_wc) * cqe);
ipath_update_mmap_info(dev, ip, s, wc);
spin_lock_irq(&dev->pending_lock);
ip->next = dev->pending_mmaps;
dev->pending_mmaps = ip;
if (list_empty(&ip->pending_mmaps))
list_add(&ip->pending_mmaps, &dev->pending_mmaps);
spin_unlock_irq(&dev->pending_lock);
}

64
drivers/infiniband/hw/ipath/ipath_mmap.c
View File

@ -46,6 +46,11 @@ void ipath_release_mmap_info(struct kref *ref)
{
struct ipath_mmap_info *ip =
container_of(ref, struct ipath_mmap_info, ref);
struct ipath_ibdev *dev = to_idev(ip->context->device);
spin_lock_irq(&dev->pending_lock);
list_del(&ip->pending_mmaps);
spin_unlock_irq(&dev->pending_lock);
vfree(ip->obj);
kfree(ip);
@ -60,14 +65,12 @@ static void ipath_vma_open(struct vm_area_struct *vma)
struct ipath_mmap_info *ip = vma->vm_private_data;
kref_get(&ip->ref);
ip->mmap_cnt++;
}
static void ipath_vma_close(struct vm_area_struct *vma)
{
struct ipath_mmap_info *ip = vma->vm_private_data;
ip->mmap_cnt--;
kref_put(&ip->ref, ipath_release_mmap_info);
}
@ -87,7 +90,7 @@ int ipath_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
struct ipath_ibdev *dev = to_idev(context->device);
unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
unsigned long size = vma->vm_end - vma->vm_start;
struct ipath_mmap_info *ip, **pp;
struct ipath_mmap_info *ip, *pp;
int ret = -EINVAL;
/*
@ -96,15 +99,16 @@ int ipath_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
* CQ, QP, or SRQ is soon followed by a call to mmap().
*/
spin_lock_irq(&dev->pending_lock);
for (pp = &dev->pending_mmaps; (ip = *pp); pp = &ip->next) {
list_for_each_entry_safe(ip, pp, &dev->pending_mmaps,
pending_mmaps) {
/* Only the creator is allowed to mmap the object */
if (context != ip->context || (void *) offset != ip->obj)
if (context != ip->context || (__u64) offset != ip->offset)
continue;
/* Don't allow a mmap larger than the object. */
if (size > ip->size)
break;
*pp = ip->next;
list_del_init(&ip->pending_mmaps);
spin_unlock_irq(&dev->pending_lock);
ret = remap_vmalloc_range(vma, ip->obj, 0);
@ -119,3 +123,51 @@ int ipath_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
done:
return ret;
}
/*
* Allocate information for ipath_mmap
*/
struct ipath_mmap_info *ipath_create_mmap_info(struct ipath_ibdev *dev,
u32 size,
struct ib_ucontext *context,
void *obj) {
struct ipath_mmap_info *ip;
ip = kmalloc(sizeof *ip, GFP_KERNEL);
if (!ip)
goto bail;
size = PAGE_ALIGN(size);
spin_lock_irq(&dev->mmap_offset_lock);
if (dev->mmap_offset == 0)
dev->mmap_offset = PAGE_SIZE;
ip->offset = dev->mmap_offset;
dev->mmap_offset += size;
spin_unlock_irq(&dev->mmap_offset_lock);
INIT_LIST_HEAD(&ip->pending_mmaps);
ip->size = size;
ip->context = context;
ip->obj = obj;
kref_init(&ip->ref);
bail:
return ip;
}
void ipath_update_mmap_info(struct ipath_ibdev *dev,
struct ipath_mmap_info *ip,
u32 size, void *obj) {
size = PAGE_ALIGN(size);
spin_lock_irq(&dev->mmap_offset_lock);
if (dev->mmap_offset == 0)
dev->mmap_offset = PAGE_SIZE;
ip->offset = dev->mmap_offset;
dev->mmap_offset += size;
spin_unlock_irq(&dev->mmap_offset_lock);
ip->size = size;
ip->obj = obj;
}

52
drivers/infiniband/hw/ipath/ipath_qp.c
View File

@ -844,34 +844,36 @@ struct ib_qp *ipath_create_qp(struct ib_pd *ibpd,
* See ipath_mmap() for details.
*/
if (udata && udata->outlen >= sizeof(__u64)) {
struct ipath_mmap_info *ip;
__u64 offset = (__u64) qp->r_rq.wq;
int err;
err = ib_copy_to_udata(udata, &offset, sizeof(offset));
if (err) {
ret = ERR_PTR(err);
goto bail_rwq;
}
if (!qp->r_rq.wq) {
__u64 offset = 0;
if (qp->r_rq.wq) {
/* Allocate info for ipath_mmap(). */
ip = kmalloc(sizeof(*ip), GFP_KERNEL);
if (!ip) {
err = ib_copy_to_udata(udata, &offset,
sizeof(offset));
if (err) {
ret = ERR_PTR(err);
goto bail_rwq;
}
} else {
u32 s = sizeof(struct ipath_rwq) +
qp->r_rq.size * sz;
qp->ip =
ipath_create_mmap_info(dev, s,
ibpd->uobject->context,
qp->r_rq.wq);
if (!qp->ip) {
ret = ERR_PTR(-ENOMEM);
goto bail_rwq;
}
qp->ip = ip;
ip->context = ibpd->uobject->context;
ip->obj = qp->r_rq.wq;
kref_init(&ip->ref);
ip->mmap_cnt = 0;
ip->size = PAGE_ALIGN(sizeof(struct ipath_rwq) +
qp->r_rq.size * sz);
spin_lock_irq(&dev->pending_lock);
ip->next = dev->pending_mmaps;
dev->pending_mmaps = ip;
spin_unlock_irq(&dev->pending_lock);
err = ib_copy_to_udata(udata, &(qp->ip->offset),
sizeof(qp->ip->offset));
if (err) {
ret = ERR_PTR(err);
goto bail_ip;
}
}
}
@ -885,6 +887,12 @@ struct ib_qp *ipath_create_qp(struct ib_pd *ibpd,
dev->n_qps_allocated++;
spin_unlock(&dev->n_qps_lock);
if (qp->ip) {
spin_lock_irq(&dev->pending_lock);
list_add(&qp->ip->pending_mmaps, &dev->pending_mmaps);
spin_unlock_irq(&dev->pending_lock);
}
ret = &qp->ibqp;
goto bail;

55
drivers/infiniband/hw/ipath/ipath_rc.c
View File

@ -98,13 +98,21 @@ static int ipath_make_rc_ack(struct ipath_qp *qp,
case OP(RDMA_READ_RESPONSE_LAST):
case OP(RDMA_READ_RESPONSE_ONLY):
case OP(ATOMIC_ACKNOWLEDGE):
qp->s_ack_state = OP(ACKNOWLEDGE);
/*
* We can increment the tail pointer now that the last
* response has been sent instead of only being
* constructed.
*/
if (++qp->s_tail_ack_queue > IPATH_MAX_RDMA_ATOMIC)
qp->s_tail_ack_queue = 0;
/* FALLTHROUGH */
case OP(SEND_ONLY):
case OP(ACKNOWLEDGE):
/* Check for no next entry in the queue. */
if (qp->r_head_ack_queue == qp->s_tail_ack_queue) {
if (qp->s_flags & IPATH_S_ACK_PENDING)
goto normal;
qp->s_ack_state = OP(ACKNOWLEDGE);
goto bail;
}
@ -117,12 +125,8 @@ static int ipath_make_rc_ack(struct ipath_qp *qp,
if (len > pmtu) {
len = pmtu;
qp->s_ack_state = OP(RDMA_READ_RESPONSE_FIRST);
} else {
} else
qp->s_ack_state = OP(RDMA_READ_RESPONSE_ONLY);
if (++qp->s_tail_ack_queue >
IPATH_MAX_RDMA_ATOMIC)
qp->s_tail_ack_queue = 0;
}
ohdr->u.aeth = ipath_compute_aeth(qp);
hwords++;
qp->s_ack_rdma_psn = e->psn;
@ -139,8 +143,6 @@ static int ipath_make_rc_ack(struct ipath_qp *qp,
cpu_to_be32(e->atomic_data);
hwords += sizeof(ohdr->u.at) / sizeof(u32);
bth2 = e->psn;
if (++qp->s_tail_ack_queue > IPATH_MAX_RDMA_ATOMIC)
qp->s_tail_ack_queue = 0;
}
bth0 = qp->s_ack_state << 24;
break;
@ -156,8 +158,6 @@ static int ipath_make_rc_ack(struct ipath_qp *qp,
ohdr->u.aeth = ipath_compute_aeth(qp);
hwords++;
qp->s_ack_state = OP(RDMA_READ_RESPONSE_LAST);
if (++qp->s_tail_ack_queue > IPATH_MAX_RDMA_ATOMIC)
qp->s_tail_ack_queue = 0;
}
bth0 = qp->s_ack_state << 24;
bth2 = qp->s_ack_rdma_psn++ & IPATH_PSN_MASK;
@ -171,7 +171,7 @@ static int ipath_make_rc_ack(struct ipath_qp *qp,
* the ACK before setting s_ack_state to ACKNOWLEDGE
* (see above).
*/
qp->s_ack_state = OP(ATOMIC_ACKNOWLEDGE);
qp->s_ack_state = OP(SEND_ONLY);
qp->s_flags &= ~IPATH_S_ACK_PENDING;
qp->s_cur_sge = NULL;
if (qp->s_nak_state)
@ -223,23 +223,18 @@ int ipath_make_rc_req(struct ipath_qp *qp,
/* Sending responses has higher priority over sending requests. */
if ((qp->r_head_ack_queue != qp->s_tail_ack_queue ||
(qp->s_flags & IPATH_S_ACK_PENDING) ||
qp->s_ack_state != IB_OPCODE_RC_ACKNOWLEDGE) &&
qp->s_ack_state != OP(ACKNOWLEDGE)) &&
ipath_make_rc_ack(qp, ohdr, pmtu, bth0p, bth2p))
goto done;
if (!(ib_ipath_state_ops[qp->state] & IPATH_PROCESS_SEND_OK) ||
qp->s_rnr_timeout)
qp->s_rnr_timeout || qp->s_wait_credit)
goto bail;
/* Limit the number of packets sent without an ACK. */
if (ipath_cmp24(qp->s_psn, qp->s_last_psn + IPATH_PSN_CREDIT) > 0) {
qp->s_wait_credit = 1;
dev->n_rc_stalls++;
spin_lock(&dev->pending_lock);
if (list_empty(&qp->timerwait))
list_add_tail(&qp->timerwait,
&dev->pending[dev->pending_index]);
spin_unlock(&dev->pending_lock);
goto bail;
}
@ -587,9 +582,12 @@ static void send_rc_ack(struct ipath_qp *qp)
u32 hwords;
struct ipath_ib_header hdr;
struct ipath_other_headers *ohdr;
unsigned long flags;
/* Don't send ACK or NAK if a RDMA read or atomic is pending. */
if (qp->r_head_ack_queue != qp->s_tail_ack_queue)
if (qp->r_head_ack_queue != qp->s_tail_ack_queue ||
(qp->s_flags & IPATH_S_ACK_PENDING) ||
qp->s_ack_state != OP(ACKNOWLEDGE))
goto queue_ack;
/* Construct the header. */
@ -640,11 +638,11 @@ static void send_rc_ack(struct ipath_qp *qp)
dev->n_rc_qacks++;
queue_ack:
spin_lock_irq(&qp->s_lock);
spin_lock_irqsave(&qp->s_lock, flags);
qp->s_flags |= IPATH_S_ACK_PENDING;
qp->s_nak_state = qp->r_nak_state;
qp->s_ack_psn = qp->r_ack_psn;
spin_unlock_irq(&qp->s_lock);
spin_unlock_irqrestore(&qp->s_lock, flags);
/* Call ipath_do_rc_send() in another thread. */
tasklet_hi_schedule(&qp->s_task);
@ -1261,6 +1259,7 @@ ack_err:
wc.dlid_path_bits = 0;
wc.port_num = 0;
ipath_sqerror_qp(qp, &wc);
spin_unlock_irqrestore(&qp->s_lock, flags);
bail:
return;
}
@ -1294,6 +1293,7 @@ static inline int ipath_rc_rcv_error(struct ipath_ibdev *dev,
struct ipath_ack_entry *e;
u8 i, prev;
int old_req;
unsigned long flags;
if (diff > 0) {
/*
@ -1327,7 +1327,7 @@ static inline int ipath_rc_rcv_error(struct ipath_ibdev *dev,
psn &= IPATH_PSN_MASK;
e = NULL;
old_req = 1;
spin_lock_irq(&qp->s_lock);
spin_lock_irqsave(&qp->s_lock, flags);
for (i = qp->r_head_ack_queue; ; i = prev) {
if (i == qp->s_tail_ack_queue)
old_req = 0;
@ -1425,7 +1425,7 @@ static inline int ipath_rc_rcv_error(struct ipath_ibdev *dev,
* after all the previous RDMA reads and atomics.
*/
if (i == qp->r_head_ack_queue) {
spin_unlock_irq(&qp->s_lock);
spin_unlock_irqrestore(&qp->s_lock, flags);
qp->r_nak_state = 0;
qp->r_ack_psn = qp->r_psn - 1;
goto send_ack;
@ -1439,11 +1439,10 @@ static inline int ipath_rc_rcv_error(struct ipath_ibdev *dev,
break;
}
qp->r_nak_state = 0;
spin_unlock_irq(&qp->s_lock);
tasklet_hi_schedule(&qp->s_task);
unlock_done:
spin_unlock_irq(&qp->s_lock);
spin_unlock_irqrestore(&qp->s_lock, flags);
done:
return 1;
@ -1453,10 +1452,12 @@ send_ack:
static void ipath_rc_error(struct ipath_qp *qp, enum ib_wc_status err)
{
spin_lock_irq(&qp->s_lock);
unsigned long flags;
spin_lock_irqsave(&qp->s_lock, flags);
qp->state = IB_QPS_ERR;
ipath_error_qp(qp, err);
spin_unlock_irq(&qp->s_lock);
spin_unlock_irqrestore(&qp->s_lock, flags);
}
/**

57
drivers/infiniband/hw/ipath/ipath_srq.c
View File

@ -139,33 +139,24 @@ struct ib_srq *ipath_create_srq(struct ib_pd *ibpd,
* See ipath_mmap() for details.
*/
if (udata && udata->outlen >= sizeof(__u64)) {
struct ipath_mmap_info *ip;
__u64 offset = (__u64) srq->rq.wq;
int err;
u32 s = sizeof(struct ipath_rwq) + srq->rq.size * sz;
err = ib_copy_to_udata(udata, &offset, sizeof(offset));
if (err) {
ret = ERR_PTR(err);
goto bail_wq;
}
/* Allocate info for ipath_mmap(). */
ip = kmalloc(sizeof(*ip), GFP_KERNEL);
if (!ip) {
srq->ip =
ipath_create_mmap_info(dev, s,
ibpd->uobject->context,
srq->rq.wq);
if (!srq->ip) {
ret = ERR_PTR(-ENOMEM);
goto bail_wq;
}
srq->ip = ip;
ip->context = ibpd->uobject->context;
ip->obj = srq->rq.wq;
kref_init(&ip->ref);
ip->mmap_cnt = 0;
ip->size = PAGE_ALIGN(sizeof(struct ipath_rwq) +
srq->rq.size * sz);
spin_lock_irq(&dev->pending_lock);
ip->next = dev->pending_mmaps;
dev->pending_mmaps = ip;
spin_unlock_irq(&dev->pending_lock);
err = ib_copy_to_udata(udata, &srq->ip->offset,
sizeof(srq->ip->offset));
if (err) {
ret = ERR_PTR(err);
goto bail_ip;
}
} else
srq->ip = NULL;
@ -181,21 +172,27 @@ struct ib_srq *ipath_create_srq(struct ib_pd *ibpd,
if (dev->n_srqs_allocated == ib_ipath_max_srqs) {
spin_unlock(&dev->n_srqs_lock);
ret = ERR_PTR(-ENOMEM);
goto bail_wq;
goto bail_ip;
}
dev->n_srqs_allocated++;
spin_unlock(&dev->n_srqs_lock);
if (srq->ip) {
spin_lock_irq(&dev->pending_lock);
list_add(&srq->ip->pending_mmaps, &dev->pending_mmaps);
spin_unlock_irq(&dev->pending_lock);
}
ret = &srq->ibsrq;
goto done;
bail_ip:
kfree(srq->ip);
bail_wq:
vfree(srq->rq.wq);
bail_srq:
kfree(srq);
done:
return ret;
}
@ -312,13 +309,13 @@ int ipath_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
if (srq->ip) {
struct ipath_mmap_info *ip = srq->ip;
struct ipath_ibdev *dev = to_idev(srq->ibsrq.device);
u32 s = sizeof(struct ipath_rwq) + size * sz;
ip->obj = wq;
ip->size = PAGE_ALIGN(sizeof(struct ipath_rwq) +
size * sz);
ipath_update_mmap_info(dev, ip, s, wq);
spin_lock_irq(&dev->pending_lock);
ip->next = dev->pending_mmaps;
dev->pending_mmaps = ip;
if (list_empty(&ip->pending_mmaps))
list_add(&ip->pending_mmaps,
&dev->pending_mmaps);
spin_unlock_irq(&dev->pending_lock);
}
} else if (attr_mask & IB_SRQ_LIMIT) {

4
drivers/infiniband/hw/ipath/ipath_verbs.c
View File

@ -1476,7 +1476,10 @@ int ipath_register_ib_device(struct ipath_devdata *dd)
ret = -ENOMEM;
goto err_lk;
}
INIT_LIST_HEAD(&idev->pending_mmaps);
spin_lock_init(&idev->pending_lock);
idev->mmap_offset = PAGE_SIZE;
spin_lock_init(&idev->mmap_offset_lock);
INIT_LIST_HEAD(&idev->pending[0]);
INIT_LIST_HEAD(&idev->pending[1]);
INIT_LIST_HEAD(&idev->pending[2]);
@ -1558,6 +1561,7 @@ int ipath_register_ib_device(struct ipath_devdata *dd)
(1ull << IB_USER_VERBS_CMD_POST_SRQ_RECV);
dev->node_type = RDMA_NODE_IB_CA;
dev->phys_port_cnt = 1;
dev->num_comp_vectors = 1;
dev->dma_device = &dd->pcidev->dev;
dev->query_device = ipath_query_device;
dev->modify_device = ipath_modify_device;

24
drivers/infiniband/hw/ipath/ipath_verbs.h
View File

@ -173,12 +173,12 @@ struct ipath_ah {
* this as its vm_private_data.
*/
struct ipath_mmap_info {
struct ipath_mmap_info *next;
struct list_head pending_mmaps;
struct ib_ucontext *context;
void *obj;
__u64 offset;
struct kref ref;
unsigned size;
unsigned mmap_cnt;
};
/*
@ -422,7 +422,7 @@ struct ipath_qp {
#define IPATH_S_RDMAR_PENDING 0x04
#define IPATH_S_ACK_PENDING 0x08
#define IPATH_PSN_CREDIT 2048
#define IPATH_PSN_CREDIT 512
/*
* Since struct ipath_swqe is not a fixed size, we can't simply index into
@ -485,9 +485,10 @@ struct ipath_opcode_stats {
struct ipath_ibdev {
struct ib_device ibdev;
struct list_head dev_list;
struct ipath_devdata *dd;
struct ipath_mmap_info *pending_mmaps;
struct list_head pending_mmaps;
spinlock_t mmap_offset_lock;
u32 mmap_offset;
int ib_unit; /* This is the device number */
u16 sm_lid; /* in host order */
u8 sm_sl;
@ -734,13 +735,13 @@ int ipath_destroy_srq(struct ib_srq *ibsrq);
int ipath_poll_cq(struct ib_cq *ibcq, int num_entries, struct ib_wc *entry);
struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries,
struct ib_cq *ipath_create_cq(struct ib_device *ibdev, int entries, int comp_vector,
struct ib_ucontext *context,
struct ib_udata *udata);
int ipath_destroy_cq(struct ib_cq *ibcq);
int ipath_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify notify);
int ipath_req_notify_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags notify_flags);
int ipath_resize_cq(struct ib_cq *ibcq, int cqe, struct ib_udata *udata);
@ -768,6 +769,15 @@ int ipath_dealloc_fmr(struct ib_fmr *ibfmr);
void ipath_release_mmap_info(struct kref *ref);
struct ipath_mmap_info *ipath_create_mmap_info(struct ipath_ibdev *dev,
u32 size,
struct ib_ucontext *context,
void *obj);
void ipath_update_mmap_info(struct ipath_ibdev *dev,
struct ipath_mmap_info *ip,
u32 size, void *obj);
int ipath_mmap(struct ib_ucontext *context, struct vm_area_struct *vma);
void ipath_no_bufs_available(struct ipath_qp *qp, struct ipath_ibdev *dev);

12
drivers/infiniband/hw/mthca/mthca_cq.c
View File

@ -726,11 +726,12 @@ repoll:
return err == 0 || err == -EAGAIN ? npolled : err;
}
int mthca_tavor_arm_cq(struct ib_cq *cq, enum ib_cq_notify notify)
int mthca_tavor_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags)
{
__be32 doorbell[2];
doorbell[0] = cpu_to_be32((notify == IB_CQ_SOLICITED ?
doorbell[0] = cpu_to_be32(((flags & IB_CQ_SOLICITED_MASK) ==
IB_CQ_SOLICITED ?
MTHCA_TAVOR_CQ_DB_REQ_NOT_SOL :
MTHCA_TAVOR_CQ_DB_REQ_NOT) |
to_mcq(cq)->cqn);
@ -743,7 +744,7 @@ int mthca_tavor_arm_cq(struct ib_cq *cq, enum ib_cq_notify notify)
return 0;
}
int mthca_arbel_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify notify)
int mthca_arbel_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify_flags flags)
{
struct mthca_cq *cq = to_mcq(ibcq);
__be32 doorbell[2];
@ -755,7 +756,8 @@ int mthca_arbel_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify notify)
doorbell[0] = ci;
doorbell[1] = cpu_to_be32((cq->cqn << 8) | (2 << 5) | (sn << 3) |
(notify == IB_CQ_SOLICITED ? 1 : 2));
((flags & IB_CQ_SOLICITED_MASK) ==
IB_CQ_SOLICITED ? 1 : 2));
mthca_write_db_rec(doorbell, cq->arm_db);
@ -766,7 +768,7 @@ int mthca_arbel_arm_cq(struct ib_cq *ibcq, enum ib_cq_notify notify)
wmb();
doorbell[0] = cpu_to_be32((sn << 28) |
(notify == IB_CQ_SOLICITED ?
((flags & IB_CQ_SOLICITED_MASK) == IB_CQ_SOLICITED ?
MTHCA_ARBEL_CQ_DB_REQ_NOT_SOL :
MTHCA_ARBEL_CQ_DB_REQ_NOT) |
cq->cqn);

4
drivers/infiniband/hw/mthca/mthca_dev.h
View File

@ -495,8 +495,8 @@ void mthca_unmap_eq_icm(struct mthca_dev *dev);
int mthca_poll_cq(struct ib_cq *ibcq, int num_entries,
struct ib_wc *entry);
int mthca_tavor_arm_cq(struct ib_cq *cq, enum ib_cq_notify notify);
int mthca_arbel_arm_cq(struct ib_cq *cq, enum ib_cq_notify notify);
int mthca_tavor_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
int mthca_arbel_arm_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
int mthca_init_cq(struct mthca_dev *dev, int nent,
struct mthca_ucontext *ctx, u32 pdn,
struct mthca_cq *cq);

2
drivers/infiniband/hw/mthca/mthca_provider.c
View File

@ -663,6 +663,7 @@ static int mthca_destroy_qp(struct ib_qp *qp)
}
static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries,
int comp_vector,
struct ib_ucontext *context,
struct ib_udata *udata)
{
@ -1292,6 +1293,7 @@ int mthca_register_device(struct mthca_dev *dev)
(1ull << IB_USER_VERBS_CMD_DETACH_MCAST);
dev->ib_dev.node_type = RDMA_NODE_IB_CA;
dev->ib_dev.phys_port_cnt = dev->limits.num_ports;
dev->ib_dev.num_comp_vectors = 1;
dev->ib_dev.dma_device = &dev->pdev->dev;
dev->ib_dev.query_device = mthca_query_device;
dev->ib_dev.query_port = mthca_query_port;

13
drivers/infiniband/hw/mthca/mthca_qp.c
View File

@ -701,6 +701,19 @@ int mthca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_PRIMARY_ADDR_PATH);
}
if (ibqp->qp_type == IB_QPT_RC &&
cur_state == IB_QPS_INIT && new_state == IB_QPS_RTR) {
u8 sched_queue = ibqp->uobject ? 0x2 : 0x1;
if (mthca_is_memfree(dev))
qp_context->rlkey_arbel_sched_queue |= sched_queue;
else
qp_context->tavor_sched_queue |= cpu_to_be32(sched_queue);
qp_param->opt_param_mask |=
cpu_to_be32(MTHCA_QP_OPTPAR_SCHED_QUEUE);
}
if (attr_mask & IB_QP_TIMEOUT) {
qp_context->pri_path.ackto = attr->timeout << 3;
qp_param->opt_param_mask |= cpu_to_be32(MTHCA_QP_OPTPAR_ACK_TIMEOUT);

1
drivers/infiniband/ulp/ipoib/ipoib.h
View File

@ -310,6 +310,7 @@ extern struct workqueue_struct *ipoib_workqueue;
/* functions */
int ipoib_poll(struct net_device *dev, int *budget);
void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr);
struct ipoib_ah *ipoib_create_ah(struct net_device *dev,

14
drivers/infiniband/ulp/ipoib/ipoib_cm.c
View File

@ -370,7 +370,7 @@ void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
if (!likely(wr_id & IPOIB_CM_RX_UPDATE_MASK)) {
p = wc->qp->qp_context;
if (time_after_eq(jiffies, p->jiffies + IPOIB_CM_RX_UPDATE_TIME)) {
if (p && time_after_eq(jiffies, p->jiffies + IPOIB_CM_RX_UPDATE_TIME)) {
spin_lock_irqsave(&priv->lock, flags);
p->jiffies = jiffies;
/* Move this entry to list head, but do
@ -416,7 +416,7 @@ void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
skb->dev = dev;
/* XXX get correct PACKET_ type here */
skb->pkt_type = PACKET_HOST;
netif_rx_ni(skb);
netif_receive_skb(skb);
repost:
if (unlikely(ipoib_cm_post_receive(dev, wr_id)))
@ -592,7 +592,9 @@ int ipoib_cm_dev_open(struct net_device *dev)
priv->cm.id = ib_create_cm_id(priv->ca, ipoib_cm_rx_handler, dev);
if (IS_ERR(priv->cm.id)) {
printk(KERN_WARNING "%s: failed to create CM ID\n", priv->ca->name);
return IS_ERR(priv->cm.id);
ret = PTR_ERR(priv->cm.id);
priv->cm.id = NULL;
return ret;
}
ret = ib_cm_listen(priv->cm.id, cpu_to_be64(IPOIB_CM_IETF_ID | priv->qp->qp_num),
@ -601,6 +603,7 @@ int ipoib_cm_dev_open(struct net_device *dev)
printk(KERN_WARNING "%s: failed to listen on ID 0x%llx\n", priv->ca->name,
IPOIB_CM_IETF_ID | priv->qp->qp_num);
ib_destroy_cm_id(priv->cm.id);
priv->cm.id = NULL;
return ret;
}
return 0;
@ -611,10 +614,11 @@ void ipoib_cm_dev_stop(struct net_device *dev)
struct ipoib_dev_priv *priv = netdev_priv(dev);
struct ipoib_cm_rx *p;
if (!IPOIB_CM_SUPPORTED(dev->dev_addr))
if (!IPOIB_CM_SUPPORTED(dev->dev_addr) || !priv->cm.id)
return;
ib_destroy_cm_id(priv->cm.id);
priv->cm.id = NULL;
spin_lock_irq(&priv->lock);
while (!list_empty(&priv->cm.passive_ids)) {
p = list_entry(priv->cm.passive_ids.next, typeof(*p), list);
@ -789,7 +793,7 @@ static int ipoib_cm_tx_init(struct ipoib_cm_tx *p, u32 qpn,
}
p->cq = ib_create_cq(priv->ca, ipoib_cm_tx_completion, NULL, p,
ipoib_sendq_size + 1);
ipoib_sendq_size + 1, 0);
if (IS_ERR(p->cq)) {
ret = PTR_ERR(p->cq);
ipoib_warn(priv, "failed to allocate tx cq: %d\n", ret);

89
drivers/infiniband/ulp/ipoib/ipoib_ib.c
View File

@ -226,7 +226,7 @@ static void ipoib_ib_handle_rx_wc(struct net_device *dev, struct ib_wc *wc)
skb->dev = dev;
/* XXX get correct PACKET_ type here */
skb->pkt_type = PACKET_HOST;
netif_rx_ni(skb);
netif_receive_skb(skb);
} else {
ipoib_dbg_data(priv, "dropping loopback packet\n");
dev_kfree_skb_any(skb);
@ -280,28 +280,63 @@ static void ipoib_ib_handle_tx_wc(struct net_device *dev, struct ib_wc *wc)
wc->status, wr_id, wc->vendor_err);
}
static void ipoib_ib_handle_wc(struct net_device *dev, struct ib_wc *wc)
int ipoib_poll(struct net_device *dev, int *budget)
{
if (wc->wr_id & IPOIB_CM_OP_SRQ)
ipoib_cm_handle_rx_wc(dev, wc);
else if (wc->wr_id & IPOIB_OP_RECV)
ipoib_ib_handle_rx_wc(dev, wc);
else
ipoib_ib_handle_tx_wc(dev, wc);
struct ipoib_dev_priv *priv = netdev_priv(dev);
int max = min(*budget, dev->quota);
int done;
int t;
int empty;
int n, i;
done = 0;
empty = 0;
while (max) {
t = min(IPOIB_NUM_WC, max);
n = ib_poll_cq(priv->cq, t, priv->ibwc);
for (i = 0; i < n; ++i) {
struct ib_wc *wc = priv->ibwc + i;
if (wc->wr_id & IPOIB_CM_OP_SRQ) {
++done;
--max;
ipoib_cm_handle_rx_wc(dev, wc);
} else if (wc->wr_id & IPOIB_OP_RECV) {
++done;
--max;
ipoib_ib_handle_rx_wc(dev, wc);
} else
ipoib_ib_handle_tx_wc(dev, wc);
}
if (n != t) {
empty = 1;
break;
}
}
dev->quota -= done;
*budget -= done;
if (empty) {
netif_rx_complete(dev);
if (unlikely(ib_req_notify_cq(priv->cq,
IB_CQ_NEXT_COMP |
IB_CQ_REPORT_MISSED_EVENTS)) &&
netif_rx_reschedule(dev, 0))
return 1;
return 0;
}
return 1;
}
void ipoib_ib_completion(struct ib_cq *cq, void *dev_ptr)
{
struct net_device *dev = (struct net_device *) dev_ptr;
struct ipoib_dev_priv *priv = netdev_priv(dev);
int n, i;
ib_req_notify_cq(cq, IB_CQ_NEXT_COMP);
do {
n = ib_poll_cq(cq, IPOIB_NUM_WC, priv->ibwc);
for (i = 0; i < n; ++i)
ipoib_ib_handle_wc(dev, priv->ibwc + i);
} while (n == IPOIB_NUM_WC);
netif_rx_schedule(dev_ptr);
}
static inline int post_send(struct ipoib_dev_priv *priv,
@ -514,9 +549,10 @@ int ipoib_ib_dev_stop(struct net_device *dev)
struct ib_qp_attr qp_attr;
unsigned long begin;
struct ipoib_tx_buf *tx_req;
int i;
int i, n;
clear_bit(IPOIB_FLAG_INITIALIZED, &priv->flags);
netif_poll_disable(dev);
ipoib_cm_dev_stop(dev);
@ -568,6 +604,18 @@ int ipoib_ib_dev_stop(struct net_device *dev)
goto timeout;
}
do {
n = ib_poll_cq(priv->cq, IPOIB_NUM_WC, priv->ibwc);
for (i = 0; i < n; ++i) {
if (priv->ibwc[i].wr_id & IPOIB_CM_OP_SRQ)
ipoib_cm_handle_rx_wc(dev, priv->ibwc + i);
else if (priv->ibwc[i].wr_id & IPOIB_OP_RECV)
ipoib_ib_handle_rx_wc(dev, priv->ibwc + i);
else
ipoib_ib_handle_tx_wc(dev, priv->ibwc + i);
}
} while (n == IPOIB_NUM_WC);
msleep(1);
}
@ -596,6 +644,9 @@ timeout:
msleep(1);
}
netif_poll_enable(dev);
ib_req_notify_cq(priv->cq, IB_CQ_NEXT_COMP);
return 0;
}

2
drivers/infiniband/ulp/ipoib/ipoib_main.c
View File

@ -948,6 +948,8 @@ static void ipoib_setup(struct net_device *dev)
dev->hard_header = ipoib_hard_header;
dev->set_multicast_list = ipoib_set_mcast_list;
dev->neigh_setup = ipoib_neigh_setup_dev;
dev->poll = ipoib_poll;
dev->weight = 100;
dev->watchdog_timeo = HZ;

2
drivers/infiniband/ulp/ipoib/ipoib_verbs.c
View File

@ -187,7 +187,7 @@ int ipoib_transport_dev_init(struct net_device *dev, struct ib_device *ca)
if (!ret)
size += ipoib_recvq_size;
priv->cq = ib_create_cq(priv->ca, ipoib_ib_completion, NULL, dev, size);
priv->cq = ib_create_cq(priv->ca, ipoib_ib_completion, NULL, dev, size, 0);
if (IS_ERR(priv->cq)) {
printk(KERN_WARNING "%s: failed to create CQ\n", ca->name);
goto out_free_mr;

2
drivers/infiniband/ulp/iser/iser_verbs.c
View File

@ -76,7 +76,7 @@ static int iser_create_device_ib_res(struct iser_device *device)
iser_cq_callback,
iser_cq_event_callback,
(void *)device,
ISER_MAX_CQ_LEN);
ISER_MAX_CQ_LEN, 0);
if (IS_ERR(device->cq))
goto cq_err;

27
drivers/infiniband/ulp/srp/ib_srp.c
View File

@ -197,7 +197,7 @@ static int srp_create_target_ib(struct srp_target_port *target)
return -ENOMEM;
target->cq = ib_create_cq(target->srp_host->dev->dev, srp_completion,
NULL, target, SRP_CQ_SIZE);
NULL, target, SRP_CQ_SIZE, 0);
if (IS_ERR(target->cq)) {
ret = PTR_ERR(target->cq);
goto out;
@ -1468,6 +1468,25 @@ static ssize_t show_dgid(struct class_device *cdev, char *buf)
be16_to_cpu(((__be16 *) target->path.dgid.raw)[7]));
}
static ssize_t show_orig_dgid(struct class_device *cdev, char *buf)
{
struct srp_target_port *target = host_to_target(class_to_shost(cdev));
if (target->state == SRP_TARGET_DEAD ||
target->state == SRP_TARGET_REMOVED)
return -ENODEV;
return sprintf(buf, "%04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n",
be16_to_cpu(target->orig_dgid[0]),
be16_to_cpu(target->orig_dgid[1]),
be16_to_cpu(target->orig_dgid[2]),
be16_to_cpu(target->orig_dgid[3]),
be16_to_cpu(target->orig_dgid[4]),
be16_to_cpu(target->orig_dgid[5]),
be16_to_cpu(target->orig_dgid[6]),
be16_to_cpu(target->orig_dgid[7]));
}
static ssize_t show_zero_req_lim(struct class_device *cdev, char *buf)
{
struct srp_target_port *target = host_to_target(class_to_shost(cdev));
@ -1498,6 +1517,7 @@ static CLASS_DEVICE_ATTR(ioc_guid, S_IRUGO, show_ioc_guid, NULL);
static CLASS_DEVICE_ATTR(service_id, S_IRUGO, show_service_id, NULL);
static CLASS_DEVICE_ATTR(pkey, S_IRUGO, show_pkey, NULL);
static CLASS_DEVICE_ATTR(dgid, S_IRUGO, show_dgid, NULL);
static CLASS_DEVICE_ATTR(orig_dgid, S_IRUGO, show_orig_dgid, NULL);
static CLASS_DEVICE_ATTR(zero_req_lim, S_IRUGO, show_zero_req_lim, NULL);
static CLASS_DEVICE_ATTR(local_ib_port, S_IRUGO, show_local_ib_port, NULL);
static CLASS_DEVICE_ATTR(local_ib_device, S_IRUGO, show_local_ib_device, NULL);
@ -1508,6 +1528,7 @@ static struct class_device_attribute *srp_host_attrs[] = {
&class_device_attr_service_id,
&class_device_attr_pkey,
&class_device_attr_dgid,
&class_device_attr_orig_dgid,
&class_device_attr_zero_req_lim,
&class_device_attr_local_ib_port,
&class_device_attr_local_ib_device,
@ -1516,7 +1537,8 @@ static struct class_device_attribute *srp_host_attrs[] = {
static struct scsi_host_template srp_template = {
.module = THIS_MODULE,
.name = DRV_NAME,
.name = "InfiniBand SRP initiator",
.proc_name = DRV_NAME,
.info = srp_target_info,
.queuecommand = srp_queuecommand,
.eh_abort_handler = srp_abort,
@ -1662,6 +1684,7 @@ static int srp_parse_options(const char *buf, struct srp_target_port *target)
target->path.dgid.raw[i] = simple_strtoul(dgid, NULL, 16);
}
kfree(p);
memcpy(target->orig_dgid, target->path.dgid.raw, 16);
break;
case SRP_OPT_PKEY:

1
drivers/infiniband/ulp/srp/ib_srp.h
View File

@ -129,6 +129,7 @@ struct srp_target_port {
unsigned int scsi_id;
struct ib_sa_path_rec path;
__be16 orig_dgid[8];
struct ib_sa_query *path_query;
int path_query_id;

4
drivers/net/cxgb3/version.h
View File

@ -38,7 +38,7 @@
#define DRV_VERSION "1.0-ko"
/* Firmware version */
#define FW_VERSION_MAJOR 3
#define FW_VERSION_MINOR 3
#define FW_VERSION_MAJOR 4
#define FW_VERSION_MINOR 0
#define FW_VERSION_MICRO 0
#endif /* __CHELSIO_VERSION_H */

47
include/rdma/ib_verbs.h
View File

@ -431,9 +431,11 @@ struct ib_wc {
u8 port_num; /* valid only for DR SMPs on switches */
};
enum ib_cq_notify {
IB_CQ_SOLICITED,
IB_CQ_NEXT_COMP
enum ib_cq_notify_flags {
IB_CQ_SOLICITED = 1 << 0,
IB_CQ_NEXT_COMP = 1 << 1,
IB_CQ_SOLICITED_MASK = IB_CQ_SOLICITED | IB_CQ_NEXT_COMP,
IB_CQ_REPORT_MISSED_EVENTS = 1 << 2,
};
enum ib_srq_attr_mask {
@ -912,6 +914,8 @@ struct ib_device {
u32 flags;
int num_comp_vectors;
struct iw_cm_verbs *iwcm;
int (*query_device)(struct ib_device *device,
@ -978,6 +982,7 @@ struct ib_device {
struct ib_recv_wr *recv_wr,
struct ib_recv_wr **bad_recv_wr);
struct ib_cq * (*create_cq)(struct ib_device *device, int cqe,
int comp_vector,
struct ib_ucontext *context,
struct ib_udata *udata);
int (*destroy_cq)(struct ib_cq *cq);
@ -987,7 +992,7 @@ struct ib_device {
struct ib_wc *wc);
int (*peek_cq)(struct ib_cq *cq, int wc_cnt);
int (*req_notify_cq)(struct ib_cq *cq,
enum ib_cq_notify cq_notify);
enum ib_cq_notify_flags flags);
int (*req_ncomp_notif)(struct ib_cq *cq,
int wc_cnt);
struct ib_mr * (*get_dma_mr)(struct ib_pd *pd,
@ -1358,13 +1363,15 @@ static inline int ib_post_recv(struct ib_qp *qp,
* @cq_context: Context associated with the CQ returned to the user via
* the associated completion and event handlers.
* @cqe: The minimum size of the CQ.
* @comp_vector - Completion vector used to signal completion events.
* Must be >= 0 and < context->num_comp_vectors.
*
* Users can examine the cq structure to determine the actual CQ size.
*/
struct ib_cq *ib_create_cq(struct ib_device *device,
ib_comp_handler comp_handler,
void (*event_handler)(struct ib_event *, void *),
void *cq_context, int cqe);
void *cq_context, int cqe, int comp_vector);
/**
* ib_resize_cq - Modifies the capacity of the CQ.
@ -1414,14 +1421,34 @@ int ib_peek_cq(struct ib_cq *cq, int wc_cnt);
/**
* ib_req_notify_cq - Request completion notification on a CQ.
* @cq: The CQ to generate an event for.
* @cq_notify: If set to %IB_CQ_SOLICITED, completion notification will
* occur on the next solicited event. If set to %IB_CQ_NEXT_COMP,
* notification will occur on the next completion.
* @flags:
* Must contain exactly one of %IB_CQ_SOLICITED or %IB_CQ_NEXT_COMP
* to request an event on the next solicited event or next work
* completion at any type, respectively. %IB_CQ_REPORT_MISSED_EVENTS
* may also be |ed in to request a hint about missed events, as
* described below.
*
* Return Value:
* < 0 means an error occurred while requesting notification
* == 0 means notification was requested successfully, and if
* IB_CQ_REPORT_MISSED_EVENTS was passed in, then no events
* were missed and it is safe to wait for another event. In
* this case is it guaranteed that any work completions added
* to the CQ since the last CQ poll will trigger a completion
* notification event.
* > 0 is only returned if IB_CQ_REPORT_MISSED_EVENTS was passed
* in. It means that the consumer must poll the CQ again to
* make sure it is empty to avoid missing an event because of a
* race between requesting notification and an entry being
* added to the CQ. This return value means it is possible
* (but not guaranteed) that a work completion has been added
* to the CQ since the last poll without triggering a
* completion notification event.
*/
static inline int ib_req_notify_cq(struct ib_cq *cq,
enum ib_cq_notify cq_notify)
enum ib_cq_notify_flags flags)
{
return cq->device->req_notify_cq(cq, cq_notify);
return cq->device->req_notify_cq(cq, flags);
}
/**