diff options
Diffstat (limited to 'drivers/infiniband/ulp/ipoib/ipoib_cm.c')
| -rw-r--r-- | drivers/infiniband/ulp/ipoib/ipoib_cm.c | 376 |
1 files changed, 274 insertions, 102 deletions
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_cm.c b/drivers/infiniband/ulp/ipoib/ipoib_cm.c index 059cf92b60a5..1818f958c250 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_cm.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_cm.c @@ -39,6 +39,15 @@ #include <linux/icmpv6.h> #include <linux/delay.h> +#include "ipoib.h" + +int ipoib_max_conn_qp = 128; + +module_param_named(max_nonsrq_conn_qp, ipoib_max_conn_qp, int, 0444); +MODULE_PARM_DESC(max_nonsrq_conn_qp, + "Max number of connected-mode QPs per interface " + "(applied only if shared receive queue is not available)"); + #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG_DATA static int data_debug_level; @@ -47,8 +56,6 @@ MODULE_PARM_DESC(cm_data_debug_level, "Enable data path debug tracing for connected mode if > 0"); #endif -#include "ipoib.h" - #define IPOIB_CM_IETF_ID 0x1000000000000000ULL #define IPOIB_CM_RX_UPDATE_TIME (256 * HZ) @@ -81,7 +88,7 @@ static void ipoib_cm_dma_unmap_rx(struct ipoib_dev_priv *priv, int frags, ib_dma_unmap_single(priv->ca, mapping[i + 1], PAGE_SIZE, DMA_FROM_DEVICE); } -static int ipoib_cm_post_receive(struct net_device *dev, int id) +static int ipoib_cm_post_receive_srq(struct net_device *dev, int id) { struct ipoib_dev_priv *priv = netdev_priv(dev); struct ib_recv_wr *bad_wr; @@ -89,13 +96,13 @@ static int ipoib_cm_post_receive(struct net_device *dev, int id) priv->cm.rx_wr.wr_id = id | IPOIB_OP_CM | IPOIB_OP_RECV; - for (i = 0; i < IPOIB_CM_RX_SG; ++i) + for (i = 0; i < priv->cm.num_frags; ++i) priv->cm.rx_sge[i].addr = priv->cm.srq_ring[id].mapping[i]; ret = ib_post_srq_recv(priv->cm.srq, &priv->cm.rx_wr, &bad_wr); if (unlikely(ret)) { ipoib_warn(priv, "post srq failed for buf %d (%d)\n", id, ret); - ipoib_cm_dma_unmap_rx(priv, IPOIB_CM_RX_SG - 1, + ipoib_cm_dma_unmap_rx(priv, priv->cm.num_frags - 1, priv->cm.srq_ring[id].mapping); dev_kfree_skb_any(priv->cm.srq_ring[id].skb); priv->cm.srq_ring[id].skb = NULL; @@ -104,7 +111,33 @@ static int ipoib_cm_post_receive(struct net_device *dev, int id) return ret; } -static struct sk_buff *ipoib_cm_alloc_rx_skb(struct net_device *dev, int id, int frags, +static int ipoib_cm_post_receive_nonsrq(struct net_device *dev, + struct ipoib_cm_rx *rx, int id) +{ + struct ipoib_dev_priv *priv = netdev_priv(dev); + struct ib_recv_wr *bad_wr; + int i, ret; + + priv->cm.rx_wr.wr_id = id | IPOIB_OP_CM | IPOIB_OP_RECV; + + for (i = 0; i < IPOIB_CM_RX_SG; ++i) + priv->cm.rx_sge[i].addr = rx->rx_ring[id].mapping[i]; + + ret = ib_post_recv(rx->qp, &priv->cm.rx_wr, &bad_wr); + if (unlikely(ret)) { + ipoib_warn(priv, "post recv failed for buf %d (%d)\n", id, ret); + ipoib_cm_dma_unmap_rx(priv, IPOIB_CM_RX_SG - 1, + rx->rx_ring[id].mapping); + dev_kfree_skb_any(rx->rx_ring[id].skb); + rx->rx_ring[id].skb = NULL; + } + + return ret; +} + +static struct sk_buff *ipoib_cm_alloc_rx_skb(struct net_device *dev, + struct ipoib_cm_rx_buf *rx_ring, + int id, int frags, u64 mapping[IPOIB_CM_RX_SG]) { struct ipoib_dev_priv *priv = netdev_priv(dev); @@ -141,7 +174,7 @@ static struct sk_buff *ipoib_cm_alloc_rx_skb(struct net_device *dev, int id, int goto partial_error; } - priv->cm.srq_ring[id].skb = skb; + rx_ring[id].skb = skb; return skb; partial_error: @@ -155,7 +188,23 @@ partial_error: return NULL; } -static void ipoib_cm_start_rx_drain(struct ipoib_dev_priv* priv) +static void ipoib_cm_free_rx_ring(struct net_device *dev, + struct ipoib_cm_rx_buf *rx_ring) +{ + struct ipoib_dev_priv *priv = netdev_priv(dev); + int i; + + for (i = 0; i < ipoib_recvq_size; ++i) + if (rx_ring[i].skb) { + ipoib_cm_dma_unmap_rx(priv, IPOIB_CM_RX_SG - 1, + rx_ring[i].mapping); + dev_kfree_skb_any(rx_ring[i].skb); + } + + kfree(rx_ring); +} + +static void ipoib_cm_start_rx_drain(struct ipoib_dev_priv *priv) { struct ib_send_wr *bad_wr; struct ipoib_cm_rx *p; @@ -208,12 +257,18 @@ static struct ib_qp *ipoib_cm_create_rx_qp(struct net_device *dev, .qp_type = IB_QPT_RC, .qp_context = p, }; + + if (!ipoib_cm_has_srq(dev)) { + attr.cap.max_recv_wr = ipoib_recvq_size; + attr.cap.max_recv_sge = IPOIB_CM_RX_SG; + } + return ib_create_qp(priv->pd, &attr); } static int ipoib_cm_modify_rx_qp(struct net_device *dev, - struct ib_cm_id *cm_id, struct ib_qp *qp, - unsigned psn) + struct ib_cm_id *cm_id, struct ib_qp *qp, + unsigned psn) { struct ipoib_dev_priv *priv = netdev_priv(dev); struct ib_qp_attr qp_attr; @@ -266,6 +321,60 @@ static int ipoib_cm_modify_rx_qp(struct net_device *dev, return 0; } +static int ipoib_cm_nonsrq_init_rx(struct net_device *dev, struct ib_cm_id *cm_id, + struct ipoib_cm_rx *rx) +{ + struct ipoib_dev_priv *priv = netdev_priv(dev); + int ret; + int i; + + rx->rx_ring = kcalloc(ipoib_recvq_size, sizeof *rx->rx_ring, GFP_KERNEL); + if (!rx->rx_ring) + return -ENOMEM; + + spin_lock_irq(&priv->lock); + + if (priv->cm.nonsrq_conn_qp >= ipoib_max_conn_qp) { + spin_unlock_irq(&priv->lock); + ib_send_cm_rej(cm_id, IB_CM_REJ_NO_QP, NULL, 0, NULL, 0); + ret = -EINVAL; + goto err_free; + } else + ++priv->cm.nonsrq_conn_qp; + + spin_unlock_irq(&priv->lock); + + for (i = 0; i < ipoib_recvq_size; ++i) { + if (!ipoib_cm_alloc_rx_skb(dev, rx->rx_ring, i, IPOIB_CM_RX_SG - 1, + rx->rx_ring[i].mapping)) { + ipoib_warn(priv, "failed to allocate receive buffer %d\n", i); + ret = -ENOMEM; + goto err_count; + } + ret = ipoib_cm_post_receive_nonsrq(dev, rx, i); + if (ret) { + ipoib_warn(priv, "ipoib_cm_post_receive_nonsrq " + "failed for buf %d\n", i); + ret = -EIO; + goto err_count; + } + } + + rx->recv_count = ipoib_recvq_size; + + return 0; + +err_count: + spin_lock_irq(&priv->lock); + --priv->cm.nonsrq_conn_qp; + spin_unlock_irq(&priv->lock); + +err_free: + ipoib_cm_free_rx_ring(dev, rx->rx_ring); + + return ret; +} + static int ipoib_cm_send_rep(struct net_device *dev, struct ib_cm_id *cm_id, struct ib_qp *qp, struct ib_cm_req_event_param *req, unsigned psn) @@ -281,7 +390,7 @@ static int ipoib_cm_send_rep(struct net_device *dev, struct ib_cm_id *cm_id, rep.private_data_len = sizeof data; rep.flow_control = 0; rep.rnr_retry_count = req->rnr_retry_count; - rep.srq = 1; + rep.srq = ipoib_cm_has_srq(dev); rep.qp_num = qp->qp_num; rep.starting_psn = psn; return ib_send_cm_rep(cm_id, &rep); @@ -317,6 +426,12 @@ static int ipoib_cm_req_handler(struct ib_cm_id *cm_id, struct ib_cm_event *even if (ret) goto err_modify; + if (!ipoib_cm_has_srq(dev)) { + ret = ipoib_cm_nonsrq_init_rx(dev, cm_id, p); + if (ret) + goto err_modify; + } + spin_lock_irq(&priv->lock); queue_delayed_work(ipoib_workqueue, &priv->cm.stale_task, IPOIB_CM_RX_DELAY); @@ -401,12 +516,14 @@ static void skb_put_frags(struct sk_buff *skb, unsigned int hdr_space, void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) { struct ipoib_dev_priv *priv = netdev_priv(dev); + struct ipoib_cm_rx_buf *rx_ring; unsigned int wr_id = wc->wr_id & ~(IPOIB_OP_CM | IPOIB_OP_RECV); struct sk_buff *skb, *newskb; struct ipoib_cm_rx *p; unsigned long flags; u64 mapping[IPOIB_CM_RX_SG]; int frags; + int has_srq; ipoib_dbg_data(priv, "cm recv completion: id %d, status: %d\n", wr_id, wc->status); @@ -424,18 +541,32 @@ void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) return; } - skb = priv->cm.srq_ring[wr_id].skb; + p = wc->qp->qp_context; + + has_srq = ipoib_cm_has_srq(dev); + rx_ring = has_srq ? priv->cm.srq_ring : p->rx_ring; + + skb = rx_ring[wr_id].skb; if (unlikely(wc->status != IB_WC_SUCCESS)) { ipoib_dbg(priv, "cm recv error " "(status=%d, wrid=%d vend_err %x)\n", wc->status, wr_id, wc->vendor_err); ++dev->stats.rx_dropped; - goto repost; + if (has_srq) + goto repost; + else { + if (!--p->recv_count) { + spin_lock_irqsave(&priv->lock, flags); + list_move(&p->list, &priv->cm.rx_reap_list); + spin_unlock_irqrestore(&priv->lock, flags); + queue_work(ipoib_workqueue, &priv->cm.rx_reap_task); + } + return; + } } if (unlikely(!(wr_id & IPOIB_CM_RX_UPDATE_MASK))) { - p = wc->qp->qp_context; if (p && time_after_eq(jiffies, p->jiffies + IPOIB_CM_RX_UPDATE_TIME)) { spin_lock_irqsave(&priv->lock, flags); p->jiffies = jiffies; @@ -450,7 +581,7 @@ void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) frags = PAGE_ALIGN(wc->byte_len - min(wc->byte_len, (unsigned)IPOIB_CM_HEAD_SIZE)) / PAGE_SIZE; - newskb = ipoib_cm_alloc_rx_skb(dev, wr_id, frags, mapping); + newskb = ipoib_cm_alloc_rx_skb(dev, rx_ring, wr_id, frags, mapping); if (unlikely(!newskb)) { /* * If we can't allocate a new RX buffer, dump @@ -461,8 +592,8 @@ void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) goto repost; } - ipoib_cm_dma_unmap_rx(priv, frags, priv->cm.srq_ring[wr_id].mapping); - memcpy(priv->cm.srq_ring[wr_id].mapping, mapping, (frags + 1) * sizeof *mapping); + ipoib_cm_dma_unmap_rx(priv, frags, rx_ring[wr_id].mapping); + memcpy(rx_ring[wr_id].mapping, mapping, (frags + 1) * sizeof *mapping); ipoib_dbg_data(priv, "received %d bytes, SLID 0x%04x\n", wc->byte_len, wc->slid); @@ -483,9 +614,17 @@ void ipoib_cm_handle_rx_wc(struct net_device *dev, struct ib_wc *wc) netif_receive_skb(skb); repost: - if (unlikely(ipoib_cm_post_receive(dev, wr_id))) - ipoib_warn(priv, "ipoib_cm_post_receive failed " - "for buf %d\n", wr_id); + if (has_srq) { + if (unlikely(ipoib_cm_post_receive_srq(dev, wr_id))) + ipoib_warn(priv, "ipoib_cm_post_receive_srq failed " + "for buf %d\n", wr_id); + } else { + if (unlikely(ipoib_cm_post_receive_nonsrq(dev, p, wr_id))) { + --p->recv_count; + ipoib_warn(priv, "ipoib_cm_post_receive_nonsrq failed " + "for buf %d\n", wr_id); + } + } } static inline int post_send(struct ipoib_dev_priv *priv, @@ -495,10 +634,10 @@ static inline int post_send(struct ipoib_dev_priv *priv, { struct ib_send_wr *bad_wr; - priv->tx_sge.addr = addr; - priv->tx_sge.length = len; + priv->tx_sge.addr = addr; + priv->tx_sge.length = len; - priv->tx_wr.wr_id = wr_id | IPOIB_OP_CM; + priv->tx_wr.wr_id = wr_id | IPOIB_OP_CM; return ib_post_send(tx->qp, &priv->tx_wr, &bad_wr); } @@ -540,7 +679,7 @@ void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_ tx_req->mapping = addr; if (unlikely(post_send(priv, tx, tx->tx_head & (ipoib_sendq_size - 1), - addr, skb->len))) { + addr, skb->len))) { ipoib_warn(priv, "post_send failed\n"); ++dev->stats.tx_errors; ib_dma_unmap_single(priv->ca, addr, skb->len, DMA_TO_DEVICE); @@ -657,10 +796,33 @@ err_cm: return ret; } +static void ipoib_cm_free_rx_reap_list(struct net_device *dev) +{ + struct ipoib_dev_priv *priv = netdev_priv(dev); + struct ipoib_cm_rx *rx, *n; + LIST_HEAD(list); + + spin_lock_irq(&priv->lock); + list_splice_init(&priv->cm.rx_reap_list, &list); + spin_unlock_irq(&priv->lock); + + list_for_each_entry_safe(rx, n, &list, list) { + ib_destroy_cm_id(rx->id); + ib_destroy_qp(rx->qp); + if (!ipoib_cm_has_srq(dev)) { + ipoib_cm_free_rx_ring(priv->dev, rx->rx_ring); + spin_lock_irq(&priv->lock); + --priv->cm.nonsrq_conn_qp; + spin_unlock_irq(&priv->lock); + } + kfree(rx); + } +} + void ipoib_cm_dev_stop(struct net_device *dev) { struct ipoib_dev_priv *priv = netdev_priv(dev); - struct ipoib_cm_rx *p, *n; + struct ipoib_cm_rx *p; unsigned long begin; LIST_HEAD(list); int ret; @@ -706,15 +868,9 @@ void ipoib_cm_dev_stop(struct net_device *dev) spin_lock_irq(&priv->lock); } - list_splice_init(&priv->cm.rx_reap_list, &list); - spin_unlock_irq(&priv->lock); - list_for_each_entry_safe(p, n, &list, list) { - ib_destroy_cm_id(p->id); - ib_destroy_qp(p->qp); - kfree(p); - } + ipoib_cm_free_rx_reap_list(dev); cancel_delayed_work(&priv->cm.stale_task); } @@ -799,7 +955,7 @@ static struct ib_qp *ipoib_cm_create_tx_qp(struct net_device *dev, struct ipoib_ .sq_sig_type = IB_SIGNAL_ALL_WR, .qp_type = IB_QPT_RC, .qp_context = tx - }; + }; return ib_create_qp(priv->pd, &attr); } @@ -816,28 +972,28 @@ static int ipoib_cm_send_req(struct net_device *dev, data.qpn = cpu_to_be32(priv->qp->qp_num); data.mtu = cpu_to_be32(IPOIB_CM_BUF_SIZE); - req.primary_path = pathrec; - req.alternate_path = NULL; - req.service_id = cpu_to_be64(IPOIB_CM_IETF_ID | qpn); - req.qp_num = qp->qp_num; - req.qp_type = qp->qp_type; - req.private_data = &data; - req.private_data_len = sizeof data; - req.flow_control = 0; + req.primary_path = pathrec; + req.alternate_path = NULL; + req.service_id = cpu_to_be64(IPOIB_CM_IETF_ID | qpn); + req.qp_num = qp->qp_num; + req.qp_type = qp->qp_type; + req.private_data = &data; + req.private_data_len = sizeof data; + req.flow_control = 0; - req.starting_psn = 0; /* FIXME */ + req.starting_psn = 0; /* FIXME */ /* * Pick some arbitrary defaults here; we could make these * module parameters if anyone cared about setting them. */ - req.responder_resources = 4; - req.remote_cm_response_timeout = 20; - req.local_cm_response_timeout = 20; - req.retry_count = 0; /* RFC draft warns against retries */ - req.rnr_retry_count = 0; /* RFC draft warns against retries */ - req.max_cm_retries = 15; - req.srq = 1; + req.responder_resources = 4; + req.remote_cm_response_timeout = 20; + req.local_cm_response_timeout = 20; + req.retry_count = 0; /* RFC draft warns against retries */ + req.rnr_retry_count = 0; /* RFC draft warns against retries */ + req.max_cm_retries = 15; + req.srq = ipoib_cm_has_srq(dev); return ib_send_cm_req(id, &req); } @@ -1150,7 +1306,7 @@ static void ipoib_cm_skb_reap(struct work_struct *work) spin_unlock_irq(&priv->tx_lock); } -void ipoib_cm_skb_too_long(struct net_device* dev, struct sk_buff *skb, +void ipoib_cm_skb_too_long(struct net_device *dev, struct sk_buff *skb, unsigned int mtu) { struct ipoib_dev_priv *priv = netdev_priv(dev); @@ -1166,20 +1322,8 @@ void ipoib_cm_skb_too_long(struct net_device* dev, struct sk_buff *skb, static void ipoib_cm_rx_reap(struct work_struct *work) { - struct ipoib_dev_priv *priv = container_of(work, struct ipoib_dev_priv, - cm.rx_reap_task); - struct ipoib_cm_rx *p, *n; - LIST_HEAD(list); - - spin_lock_irq(&priv->lock); - list_splice_init(&priv->cm.rx_reap_list, &list); - spin_unlock_irq(&priv->lock); - - list_for_each_entry_safe(p, n, &list, list) { - ib_destroy_cm_id(p->id); - ib_destroy_qp(p->qp); - kfree(p); - } + ipoib_cm_free_rx_reap_list(container_of(work, struct ipoib_dev_priv, + cm.rx_reap_task)->dev); } static void ipoib_cm_stale_task(struct work_struct *work) @@ -1212,7 +1356,7 @@ static void ipoib_cm_stale_task(struct work_struct *work) } -static ssize_t show_mode(struct device *d, struct device_attribute *attr, +static ssize_t show_mode(struct device *d, struct device_attribute *attr, char *buf) { struct ipoib_dev_priv *priv = netdev_priv(to_net_dev(d)); @@ -1255,16 +1399,40 @@ int ipoib_cm_add_mode_attr(struct net_device *dev) return device_create_file(&dev->dev, &dev_attr_mode); } -int ipoib_cm_dev_init(struct net_device *dev) +static void ipoib_cm_create_srq(struct net_device *dev, int max_sge) { struct ipoib_dev_priv *priv = netdev_priv(dev); struct ib_srq_init_attr srq_init_attr = { .attr = { .max_wr = ipoib_recvq_size, - .max_sge = IPOIB_CM_RX_SG + .max_sge = max_sge } }; - int ret, i; + + priv->cm.srq = ib_create_srq(priv->pd, &srq_init_attr); + if (IS_ERR(priv->cm.srq)) { + if (PTR_ERR(priv->cm.srq) != -ENOSYS) + printk(KERN_WARNING "%s: failed to allocate SRQ, error %ld\n", + priv->ca->name, PTR_ERR(priv->cm.srq)); + priv->cm.srq = NULL; + return; + } + + priv->cm.srq_ring = kzalloc(ipoib_recvq_size * sizeof *priv->cm.srq_ring, + GFP_KERNEL); + if (!priv->cm.srq_ring) { + printk(KERN_WARNING "%s: failed to allocate CM SRQ ring (%d entries)\n", + priv->ca->name, ipoib_recvq_size); + ib_destroy_srq(priv->cm.srq); + priv->cm.srq = NULL; + } +} + +int ipoib_cm_dev_init(struct net_device *dev) +{ + struct ipoib_dev_priv *priv = netdev_priv(dev); + int i, ret; + struct ib_device_attr attr; INIT_LIST_HEAD(&priv->cm.passive_ids); INIT_LIST_HEAD(&priv->cm.reap_list); @@ -1281,43 +1449,53 @@ int ipoib_cm_dev_init(struct net_device *dev) skb_queue_head_init(&priv->cm.skb_queue); - priv->cm.srq = ib_create_srq(priv->pd, &srq_init_attr); - if (IS_ERR(priv->cm.srq)) { - ret = PTR_ERR(priv->cm.srq); - priv->cm.srq = NULL; + ret = ib_query_device(priv->ca, &attr); + if (ret) { + printk(KERN_WARNING "ib_query_device() failed with %d\n", ret); return ret; } - priv->cm.srq_ring = kzalloc(ipoib_recvq_size * sizeof *priv->cm.srq_ring, - GFP_KERNEL); - if (!priv->cm.srq_ring) { - printk(KERN_WARNING "%s: failed to allocate CM ring (%d entries)\n", - priv->ca->name, ipoib_recvq_size); - ipoib_cm_dev_cleanup(dev); - return -ENOMEM; + ipoib_dbg(priv, "max_srq_sge=%d\n", attr.max_srq_sge); + + attr.max_srq_sge = min_t(int, IPOIB_CM_RX_SG, attr.max_srq_sge); + ipoib_cm_create_srq(dev, attr.max_srq_sge); + if (ipoib_cm_has_srq(dev)) { + priv->cm.max_cm_mtu = attr.max_srq_sge * PAGE_SIZE - 0x10; + priv->cm.num_frags = attr.max_srq_sge; + ipoib_dbg(priv, "max_cm_mtu = 0x%x, num_frags=%d\n", + priv->cm.max_cm_mtu, priv->cm.num_frags); + } else { + priv->cm.max_cm_mtu = IPOIB_CM_MTU; + priv->cm.num_frags = IPOIB_CM_RX_SG; } - for (i = 0; i < IPOIB_CM_RX_SG; ++i) + for (i = 0; i < priv->cm.num_frags; ++i) priv->cm.rx_sge[i].lkey = priv->mr->lkey; priv->cm.rx_sge[0].length = IPOIB_CM_HEAD_SIZE; - for (i = 1; i < IPOIB_CM_RX_SG; ++i) + for (i = 1; i < priv->cm.num_frags; ++i) priv->cm.rx_sge[i].length = PAGE_SIZE; priv->cm.rx_wr.next = NULL; priv->cm.rx_wr.sg_list = priv->cm.rx_sge; - priv->cm.rx_wr.num_sge = IPOIB_CM_RX_SG; + priv->cm.rx_wr.num_sge = priv->cm.num_frags; + + if (ipoib_cm_has_srq(dev)) { + for (i = 0; i < ipoib_recvq_size; ++i) { + if (!ipoib_cm_alloc_rx_skb(dev, priv->cm.srq_ring, i, + priv->cm.num_frags - 1, + priv->cm.srq_ring[i].mapping)) { + ipoib_warn(priv, "failed to allocate " + "receive buffer %d\n", i); + ipoib_cm_dev_cleanup(dev); + return -ENOMEM; + } - for (i = 0; i < ipoib_recvq_size; ++i) { - if (!ipoib_cm_alloc_rx_skb(dev, i, IPOIB_CM_RX_SG - 1, - priv->cm.srq_ring[i].mapping)) { - ipoib_warn(priv, "failed to allocate receive buffer %d\n", i); - ipoib_cm_dev_cleanup(dev); - return -ENOMEM; - } - if (ipoib_cm_post_receive(dev, i)) { - ipoib_warn(priv, "ipoib_ib_post_receive failed for buf %d\n", i); - ipoib_cm_dev_cleanup(dev); - return -EIO; + if (ipoib_cm_post_receive_srq(dev, i)) { + ipoib_warn(priv, "ipoib_cm_post_receive_srq " + "failed for buf %d\n", i); + ipoib_cm_dev_cleanup(dev); + return -EIO; + } } } @@ -1328,7 +1506,7 @@ int ipoib_cm_dev_init(struct net_device *dev) void ipoib_cm_dev_cleanup(struct net_device *dev) { struct ipoib_dev_priv *priv = netdev_priv(dev); - int i, ret; + int ret; if (!priv->cm.srq) return; @@ -1342,13 +1520,7 @@ void ipoib_cm_dev_cleanup(struct net_device *dev) priv->cm.srq = NULL; if (!priv->cm.srq_ring) return; - for (i = 0; i < ipoib_recvq_size; ++i) - if (priv->cm.srq_ring[i].skb) { - ipoib_cm_dma_unmap_rx(priv, IPOIB_CM_RX_SG - 1, - priv->cm.srq_ring[i].mapping); - dev_kfree_skb_any(priv->cm.srq_ring[i].skb); - priv->cm.srq_ring[i].skb = NULL; - } - kfree(priv->cm.srq_ring); + + ipoib_cm_free_rx_ring(dev, priv->cm.srq_ring); priv->cm.srq_ring = NULL; } |