From 70cb92539cd1b8e1dec935a68fc154ea0db3a177 Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Fri, 9 Jan 2009 13:14:07 -0800 Subject: mlx4_core: Fix warning from min() Recent cpumask changes changed num_possible_cpus() from returning an int to returning an unsigned int. This means that doing min(num_possible_cpus(), ) now produces a warning like drivers/net/mlx4/main.c: In function 'mlx4_enable_msi_x': drivers/net/mlx4/main.c:915: warning: comparison of distinct pointer types lacks a cast Fix this by using min_t(int, ...). Signed-off-by: Roland Dreier --- drivers/net/mlx4/main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c index 710c79e7a2d..6ef2490d5c3 100644 --- a/drivers/net/mlx4/main.c +++ b/drivers/net/mlx4/main.c @@ -912,8 +912,8 @@ static void mlx4_enable_msi_x(struct mlx4_dev *dev) int i; if (msi_x) { - nreq = min(dev->caps.num_eqs - dev->caps.reserved_eqs, - num_possible_cpus() + 1); + nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs, + num_possible_cpus() + 1); entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL); if (!entries) goto no_msi; -- cgit v1.2.3-70-g09d2 From 22e7ef9c089305111661b01e425cd0b974231e2e Mon Sep 17 00:00:00 2001 From: Roland Dreier Date: Fri, 9 Jan 2009 13:22:29 -0800 Subject: IB/mlx4: Don't register IB device for adapters with no IB ports If the mlx4_ib driver finds an adapter that has only ethernet ports, the current code will register an IB device with 0 ports. Nothing useful or sensible can be done with such a device, so just skip registering it. Signed-off-by: Roland Dreier --- drivers/infiniband/hw/mlx4/main.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index dcefe1fceb5..61588bd273b 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -543,14 +543,21 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) { static int mlx4_ib_version_printed; struct mlx4_ib_dev *ibdev; + int num_ports = 0; int i; - if (!mlx4_ib_version_printed) { printk(KERN_INFO "%s", mlx4_ib_version); ++mlx4_ib_version_printed; } + mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) + num_ports++; + + /* No point in registering a device with no ports... */ + if (num_ports == 0) + return NULL; + ibdev = (struct mlx4_ib_dev *) ib_alloc_device(sizeof *ibdev); if (!ibdev) { dev_err(&dev->pdev->dev, "Device struct alloc failed\n"); @@ -574,9 +581,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev) ibdev->ib_dev.owner = THIS_MODULE; ibdev->ib_dev.node_type = RDMA_NODE_IB_CA; ibdev->ib_dev.local_dma_lkey = dev->caps.reserved_lkey; - ibdev->num_ports = 0; - mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) - ibdev->num_ports++; + ibdev->num_ports = num_ports; ibdev->ib_dev.phys_port_cnt = ibdev->num_ports; ibdev->ib_dev.num_comp_vectors = dev->caps.num_comp_vectors; ibdev->ib_dev.dma_device = &dev->pdev->dev; -- cgit v1.2.3-70-g09d2 From a50df398cddf6b757bdbf30f5f0875982ef5c660 Mon Sep 17 00:00:00 2001 From: Yossi Etigin Date: Fri, 9 Jan 2009 14:05:11 -0800 Subject: IPoIB: Fix loss of connectivity after bonding failover on both sides Fix bonding failover in the case both peers failover and the gratuitous ARP is lost. In that case, the sender side will create an ipoib_neigh and issue a path request with the old GID first. When skb->dst->neighbour->ha changes due to ARP refresh, this ipoib_neigh will not be added to the path->list of the path of the new GID, because the ipoib_neigh already exists. It will not have an AH either, because of sender-side failover. Therefore, it will not get an AH when the path is resolved. The solution here is to compare GIDs in ipoib_start_xmit() even if neigh->ah is invalid. Comparing with an uninitialized value of neigh->dgid should be fine, since a spurious match is harmless (and astronomically unlikely too). Signed-off-by: Moni Shoua Signed-off-by: Yossi Etigin Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib_main.c | 38 +++++++++++++++---------------- 1 file changed, 19 insertions(+), 19 deletions(-) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c index 19e06bc38b3..dce0443f9d6 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_main.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c @@ -711,26 +711,26 @@ static int ipoib_start_xmit(struct sk_buff *skb, struct net_device *dev) neigh = *to_ipoib_neigh(skb->dst->neighbour); - if (neigh->ah) - if (unlikely((memcmp(&neigh->dgid.raw, - skb->dst->neighbour->ha + 4, - sizeof(union ib_gid))) || - (neigh->dev != dev))) { - spin_lock_irqsave(&priv->lock, flags); - /* - * It's safe to call ipoib_put_ah() inside - * priv->lock here, because we know that - * path->ah will always hold one more reference, - * so ipoib_put_ah() will never do more than - * decrement the ref count. - */ + if (unlikely((memcmp(&neigh->dgid.raw, + skb->dst->neighbour->ha + 4, + sizeof(union ib_gid))) || + (neigh->dev != dev))) { + spin_lock_irqsave(&priv->lock, flags); + /* + * It's safe to call ipoib_put_ah() inside + * priv->lock here, because we know that + * path->ah will always hold one more reference, + * so ipoib_put_ah() will never do more than + * decrement the ref count. + */ + if (neigh->ah) ipoib_put_ah(neigh->ah); - list_del(&neigh->list); - ipoib_neigh_free(dev, neigh); - spin_unlock_irqrestore(&priv->lock, flags); - ipoib_path_lookup(skb, dev); - return NETDEV_TX_OK; - } + list_del(&neigh->list); + ipoib_neigh_free(dev, neigh); + spin_unlock_irqrestore(&priv->lock, flags); + ipoib_path_lookup(skb, dev); + return NETDEV_TX_OK; + } if (ipoib_cm_get(neigh)) { if (ipoib_cm_up(neigh)) { -- cgit v1.2.3-70-g09d2 From 03080e5cbe0222744173d3e726f6ba5d13b7f04e Mon Sep 17 00:00:00 2001 From: Harvey Harrison Date: Sat, 10 Jan 2009 21:45:42 -0800 Subject: RDMA/nes: Fix for NIPQUAD removal Commit 63779436 ("drivers: replace NIPQUAD()") accidentally replaced some HIPQUAD()s, causing IP addresses to be printed in reverse order. Add temporary local vars until the byteswapping can be pushed further up the stack. Signed-off-by: Harvey Harrison Signed-off-by: Roland Dreier --- drivers/infiniband/hw/nes/nes_cm.c | 12 +++++++++--- drivers/infiniband/hw/nes/nes_utils.c | 4 +++- 2 files changed, 12 insertions(+), 4 deletions(-) diff --git a/drivers/infiniband/hw/nes/nes_cm.c b/drivers/infiniband/hw/nes/nes_cm.c index a812db24347..ca9ef3fbd33 100644 --- a/drivers/infiniband/hw/nes/nes_cm.c +++ b/drivers/infiniband/hw/nes/nes_cm.c @@ -778,12 +778,13 @@ static struct nes_cm_node *find_node(struct nes_cm_core *cm_core, unsigned long flags; struct list_head *hte; struct nes_cm_node *cm_node; + __be32 tmp_addr = cpu_to_be32(loc_addr); /* get a handle on the hte */ hte = &cm_core->connected_nodes; nes_debug(NES_DBG_CM, "Searching for an owner node: %pI4:%x from core %p->%p\n", - &loc_addr, loc_port, cm_core, hte); + &tmp_addr, loc_port, cm_core, hte); /* walk list and find cm_node associated with this session ID */ spin_lock_irqsave(&cm_core->ht_lock, flags); @@ -816,6 +817,7 @@ static struct nes_cm_listener *find_listener(struct nes_cm_core *cm_core, { unsigned long flags; struct nes_cm_listener *listen_node; + __be32 tmp_addr = cpu_to_be32(dst_addr); /* walk list and find cm_node associated with this session ID */ spin_lock_irqsave(&cm_core->listen_list_lock, flags); @@ -833,7 +835,7 @@ static struct nes_cm_listener *find_listener(struct nes_cm_core *cm_core, spin_unlock_irqrestore(&cm_core->listen_list_lock, flags); nes_debug(NES_DBG_CM, "Unable to find listener for %pI4:%x\n", - &dst_addr, dst_port); + &tmp_addr, dst_port); /* no listener */ return NULL; @@ -2059,6 +2061,7 @@ static int mini_cm_recv_pkt(struct nes_cm_core *cm_core, struct tcphdr *tcph; struct nes_cm_info nfo; int skb_handled = 1; + __be32 tmp_daddr, tmp_saddr; if (!skb) return 0; @@ -2074,8 +2077,11 @@ static int mini_cm_recv_pkt(struct nes_cm_core *cm_core, nfo.rem_addr = ntohl(iph->saddr); nfo.rem_port = ntohs(tcph->source); + tmp_daddr = cpu_to_be32(iph->daddr); + tmp_saddr = cpu_to_be32(iph->saddr); + nes_debug(NES_DBG_CM, "Received packet: dest=%pI4:0x%04X src=%pI4:0x%04X\n", - &iph->daddr, tcph->dest, &iph->saddr, tcph->source); + &tmp_daddr, tcph->dest, &tmp_saddr, tcph->source); do { cm_node = find_node(cm_core, diff --git a/drivers/infiniband/hw/nes/nes_utils.c b/drivers/infiniband/hw/nes/nes_utils.c index aa9b7348c72..6f3bc1b6bf2 100644 --- a/drivers/infiniband/hw/nes/nes_utils.c +++ b/drivers/infiniband/hw/nes/nes_utils.c @@ -655,6 +655,7 @@ int nes_arp_table(struct nes_device *nesdev, u32 ip_addr, u8 *mac_addr, u32 acti struct nes_adapter *nesadapter = nesdev->nesadapter; int arp_index; int err = 0; + __be32 tmp_addr; for (arp_index = 0; (u32) arp_index < nesadapter->arp_table_size; arp_index++) { if (nesadapter->arp_table[arp_index].ip_addr == ip_addr) @@ -682,8 +683,9 @@ int nes_arp_table(struct nes_device *nesdev, u32 ip_addr, u8 *mac_addr, u32 acti /* DELETE or RESOLVE */ if (arp_index == nesadapter->arp_table_size) { + tmp_addr = cpu_to_be32(ip_addr); nes_debug(NES_DBG_NETDEV, "MAC for %pI4 not in ARP table - cannot %s\n", - &ip_addr, action == NES_ARP_RESOLVE ? "resolve" : "delete"); + &tmp_addr, action == NES_ARP_RESOLVE ? "resolve" : "delete"); return -1; } -- cgit v1.2.3-70-g09d2 From 50df48f59d656d58a1734df5cfe00cdc9a74e8b5 Mon Sep 17 00:00:00 2001 From: Yossi Etigin Date: Mon, 12 Jan 2009 19:28:42 -0800 Subject: IPoIB: Do not join broadcast group if interface is brought down Because the ipoib_workqueue is not flushed when ipoib interface is brought down, ipoib_mcast_join() may trigger a join to the broadcast group after priv->broadcast was set to NULL (during cleanup). This will cause the system to be a member of the broadcast group when interface is down. As a side effect, this breaks the optimization of setting the Q_key only when joining the broadcast group. Signed-off-by: Yossi Etigin Signed-off-by: Roland Dreier --- drivers/infiniband/ulp/ipoib/ipoib_multicast.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c index a2eb3b9789e..59d02e0b8df 100644 --- a/drivers/infiniband/ulp/ipoib/ipoib_multicast.c +++ b/drivers/infiniband/ulp/ipoib/ipoib_multicast.c @@ -529,6 +529,9 @@ void ipoib_mcast_join_task(struct work_struct *work) if (!priv->broadcast) { struct ipoib_mcast *broadcast; + if (!test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags)) + return; + broadcast = ipoib_mcast_alloc(dev, 1); if (!broadcast) { ipoib_warn(priv, "failed to allocate broadcast group\n"); -- cgit v1.2.3-70-g09d2 From f5eb3b76003cc36f3f66514eef05779e7559c6a3 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 12 Jan 2009 19:30:41 -0800 Subject: IB/iser: Add dependency on INFINIBAND_ADDR_TRANS Fix ib_iser build to depend on INFINIBAND_ADDR_TRANS; if INET=y but IPV6=n, then the RDMA CM is not built but INFINIBAND_ISER can be enabled, leading to: ERROR: "rdma_destroy_id" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined! ERROR: "rdma_connect" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined! ERROR: "rdma_destroy_qp" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined! ERROR: "rdma_create_id" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined! ERROR: "rdma_create_qp" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined! ERROR: "rdma_resolve_route" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined! ERROR: "rdma_disconnect" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined! ERROR: "rdma_resolve_addr" [drivers/infiniband/ulp/iser/ib_iser.ko] undefined! Signed-off-by: Randy Dunlap --- drivers/infiniband/ulp/iser/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/ulp/iser/Kconfig b/drivers/infiniband/ulp/iser/Kconfig index 77dedba829e..b411c51842d 100644 --- a/drivers/infiniband/ulp/iser/Kconfig +++ b/drivers/infiniband/ulp/iser/Kconfig @@ -1,6 +1,6 @@ config INFINIBAND_ISER tristate "iSCSI Extensions for RDMA (iSER)" - depends on SCSI && INET + depends on SCSI && INET && INFINIBAND_ADDR_TRANS select SCSI_ISCSI_ATTRS ---help--- Support for the iSCSI Extensions for RDMA (iSER) Protocol -- cgit v1.2.3-70-g09d2