#include "core_priv.h"
+#define PFX "fmr_pool: "
+
enum {
IB_FMR_MAX_REMAPS = 32,
#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
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);
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);
}
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);
}
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;
}
"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;
}
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;
}
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;
}
}
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);
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);
}
#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
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);
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);
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)
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;
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,
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;
*/
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)
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)
{
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;
return -EIO;
}
}
+
+ return 1;
}
+
return 0;
}
#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)) && \
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);
}
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);
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);
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;
u16 plen;
u32 ird;
u32 ord;
+ u32 flags;
};
static inline struct iwch_ep *to_ep(struct iw_cm_id *cm_id)
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)
{
#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;
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;
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;
}
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
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;
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:
+ *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:
- 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;
- *ecode = RDMAP_STAG_NOT_ASSOC;
- }
+ *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:
{
union t3_wr *wqe;
struct terminate_message *term;
- int status;
- int tagged = 0;
struct sk_buff *skb;
PDBG("%s %d\n", __FUNCTION__, __LINE__);
/* 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);
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)
{
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);
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,
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;
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);
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;
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;
}
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
*
* 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)
{
* 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);
+ cq->ip = ipath_create_mmap_info(dev, s, context, wc);
+ if (!cq->ip) {
+ ret = ERR_PTR(-ENOMEM);
goto bail_wc;
}
- /* Allocate info for ipath_mmap(). */
- ip = kmalloc(sizeof(*ip), GFP_KERNEL);
- if (!ip) {
- ret = ERR_PTR(-ENOMEM);
- goto bail_wc;
+ err = ib_copy_to_udata(udata, &cq->ip->offset,
+ sizeof(cq->ip->offset));
+ if (err) {
+ ret = ERR_PTR(err);
+ goto bail_ip;
}
- 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);
} else
cq->ip = NULL;
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
goto done;
+bail_ip:
+ kfree(cq->ip);
bail_wc:
vfree(wc);
-
bail_cq:
kfree(cq);
-
done:
return ret;
}
/**
* 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);
/*
* 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;
}
/**
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);
}
{
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);
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);
}
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;
/*
* 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);
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;
+}
* 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;
+ }
}
}
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;
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;
}
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;
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;
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;
* 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)
/* 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;
}
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. */
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);
wc.dlid_path_bits = 0;
wc.port_num = 0;
ipath_sqerror_qp(qp, &wc);
+ spin_unlock_irqrestore(&qp->s_lock, flags);
bail:
return;
}
struct ipath_ack_entry *e;
u8 i, prev;
int old_req;
+ unsigned long flags;
if (diff > 0) {
/*
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;
* 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;
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;
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);
}
/**
* 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);
+ srq->ip =
+ ipath_create_mmap_info(dev, s,
+ ibpd->uobject->context,
+ srq->rq.wq);
+ if (!srq->ip) {
+ ret = ERR_PTR(-ENOMEM);
goto bail_wq;
}
- /* Allocate info for ipath_mmap(). */
- ip = kmalloc(sizeof(*ip), GFP_KERNEL);
- if (!ip) {
- ret = ERR_PTR(-ENOMEM);
- goto bail_wq;
+ err = ib_copy_to_udata(udata, &srq->ip->offset,
+ sizeof(srq->ip->offset));
+ if (err) {
+ ret = ERR_PTR(err);
+ goto bail_ip;
}
- 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);
} else
srq->ip = NULL;
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;
}
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) {
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]);
(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;
* 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;
};
/*
#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
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;
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);
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);
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);
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];
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);
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);
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);
}
static struct ib_cq *mthca_create_cq(struct ib_device *ibdev, int entries,
+ int comp_vector,
struct ib_ucontext *context,
struct ib_udata *udata)
{
(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;
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);
/* 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,
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
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)))
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),
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;
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);
}
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);
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);
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,
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);
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);
}
msleep(1);
}
+ netif_poll_enable(dev);
+ ib_req_notify_cq(priv->cq, IB_CQ_NEXT_COMP);
+
return 0;
}
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;
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;
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;
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;
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));
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);
&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,
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,
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:
unsigned int scsi_id;
struct ib_sa_path_rec path;
+ __be16 orig_dgid[8];
struct ib_sa_query *path_query;
int path_query_id;
#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 */
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 {
u32 flags;
+ int num_comp_vectors;
+
struct iw_cm_verbs *iwcm;
int (*query_device)(struct ib_device *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);
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,
* @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.
/**
* 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);
}
/**
projects / linux-drm-fsl-dcu.git / commitdiff