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

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  RDMA/nes: Fix CX4 link problem in back-to-back configuration
  RDMA/nes: Clear stall bit before destroying NIC QP
  RDMA/nes: Set assume_aligned_header bit
  RDMA/cxgb3: Wait at least one schedule cycle during device removal
  IB/mad: Ignore iWARP devices on device removal
  IPoIB: Include return code in trace message for ib_post_send() failures
  IPoIB: Fix TX queue lockup with mixed UD/CM traffic

5 files changed, 40 insertions, 2 deletions

diff --git a/drivers/infiniband/hw/cxgb3/iwch.c b/drivers/infiniband/hw/cxgb3/iwch.c
index ee1d8b4d4541..63f975f3e30f 100644
--- a/drivers/infiniband/hw/cxgb3/iwch.c
+++ b/drivers/infiniband/hw/cxgb3/iwch.c
@@ -189,6 +189,7 @@ static void close_rnic_dev(struct t3cdev *tdev)
 	list_for_each_entry_safe(dev, tmp, &dev_list, entry) {
 		if (dev->rdev.t3cdev_p == tdev) {
 			dev->rdev.flags = CXIO_ERROR_FATAL;
+			synchronize_net();
 			cancel_delayed_work_sync(&dev->db_drop_task);
 			list_del(&dev->entry);
 			iwch_unregister_device(dev);
@@ -217,6 +218,7 @@ static void iwch_event_handler(struct t3cdev *tdev, u32 evt, u32 port_id)
 	switch (evt) {
 	case OFFLOAD_STATUS_DOWN: {
 		rdev->flags = CXIO_ERROR_FATAL;
+		synchronize_net();
 		event.event  = IB_EVENT_DEVICE_FATAL;
 		dispatch = 1;
 		break;
diff --git a/drivers/infiniband/hw/nes/nes_hw.c b/drivers/infiniband/hw/nes/nes_hw.c
index ce7f53833577..925075557dc2 100644
--- a/drivers/infiniband/hw/nes/nes_hw.c
+++ b/drivers/infiniband/hw/nes/nes_hw.c
@@ -1899,9 +1899,14 @@ void nes_destroy_nic_qp(struct nes_vnic *nesvnic)
 	u16  wqe_fragment_index;
 	u64 wqe_frag;
 	u32 cqp_head;
+	u32 wqm_cfg0;
 	unsigned long flags;
 	int ret;
 
+	/* clear wqe stall before destroying NIC QP */
+	wqm_cfg0 = nes_read_indexed(nesdev, NES_IDX_WQM_CONFIG0);
+	nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG0, wqm_cfg0 & 0xFFFF7FFF);
+
 	/* Free remaining NIC receive buffers */
 	while (nesvnic->nic.rq_head != nesvnic->nic.rq_tail) {
 		nic_rqe   = &nesvnic->nic.rq_vbase[nesvnic->nic.rq_tail];
@@ -2020,6 +2025,9 @@ void nes_destroy_nic_qp(struct nes_vnic *nesvnic)
 
 	pci_free_consistent(nesdev->pcidev, nesvnic->nic_mem_size, nesvnic->nic_vbase,
 			nesvnic->nic_pbase);
+
+	/* restore old wqm_cfg0 value */
+	nes_write_indexed(nesdev, NES_IDX_WQM_CONFIG0, wqm_cfg0);
 }
 
 /**
diff --git a/drivers/infiniband/hw/nes/nes_hw.h b/drivers/infiniband/hw/nes/nes_hw.h
index 9b1e7f869d83..bbbfe9fc5a5a 100644
--- a/drivers/infiniband/hw/nes/nes_hw.h
+++ b/drivers/infiniband/hw/nes/nes_hw.h
@@ -160,6 +160,7 @@ enum indexed_regs {
 	NES_IDX_ENDNODE0_NSTAT_TX_OCTETS_HI = 0x7004,
 	NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_LO = 0x7008,
 	NES_IDX_ENDNODE0_NSTAT_TX_FRAMES_HI = 0x700c,
+	NES_IDX_WQM_CONFIG0 = 0x5000,
 	NES_IDX_WQM_CONFIG1 = 0x5004,
 	NES_IDX_CM_CONFIG = 0x5100,
 	NES_IDX_NIC_LOGPORT_TO_PHYPORT = 0x6000,
diff --git a/drivers/infiniband/hw/nes/nes_nic.c b/drivers/infiniband/hw/nes/nes_nic.c
index a1d79b6856ac..91fdde382e82 100644
--- a/drivers/infiniband/hw/nes/nes_nic.c
+++ b/drivers/infiniband/hw/nes/nes_nic.c
@@ -1595,7 +1595,6 @@ struct net_device *nes_netdev_init(struct nes_device *nesdev,
 	struct nes_vnic *nesvnic;
 	struct net_device *netdev;
 	struct nic_qp_map *curr_qp_map;
-	u32 u32temp;
 	u8 phy_type = nesdev->nesadapter->phy_type[nesdev->mac_index];
 
 	netdev = alloc_etherdev(sizeof(struct nes_vnic));
@@ -1707,6 +1706,10 @@ struct net_device *nes_netdev_init(struct nes_device *nesdev,
 	     ((phy_type == NES_PHY_TYPE_PUMA_1G) &&
 	      (((PCI_FUNC(nesdev->pcidev->devfn) == 1) && (nesdev->mac_index == 2)) ||
 	       ((PCI_FUNC(nesdev->pcidev->devfn) == 2) && (nesdev->mac_index == 1)))))) {
+		u32 u32temp;
+		u32 link_mask;
+		u32 link_val;
+
 		u32temp = nes_read_indexed(nesdev, NES_IDX_PHY_PCS_CONTROL_STATUS0 +
 				(0x200 * (nesdev->mac_index & 1)));
 		if (phy_type != NES_PHY_TYPE_PUMA_1G) {
@@ -1715,13 +1718,36 @@ struct net_device *nes_netdev_init(struct nes_device *nesdev,
 				(0x200 * (nesdev->mac_index & 1)), u32temp);
 		}
 
+		/* Check and set linkup here.  This is for back to back */
+		/* configuration where second port won't get link interrupt */
+		switch (phy_type) {
+		case NES_PHY_TYPE_PUMA_1G:
+			if (nesdev->mac_index < 2) {
+				link_mask = 0x01010000;
+				link_val = 0x01010000;
+			} else {
+				link_mask = 0x02020000;
+				link_val = 0x02020000;
+			}
+			break;
+		default:
+			link_mask = 0x0f1f0000;
+			link_val = 0x0f0f0000;
+			break;
+		}
+
+		u32temp = nes_read_indexed(nesdev,
+					   NES_IDX_PHY_PCS_CONTROL_STATUS0 +
+					   (0x200 * (nesdev->mac_index & 1)));
+		if ((u32temp & link_mask) == link_val)
+			nesvnic->linkup = 1;
+
 		/* clear the MAC interrupt status, assumes direct logical to physical mapping */
 		u32temp = nes_read_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (0x200 * nesdev->mac_index));
 		nes_debug(NES_DBG_INIT, "Phy interrupt status = 0x%X.\n", u32temp);
 		nes_write_indexed(nesdev, NES_IDX_MAC_INT_STATUS + (0x200 * nesdev->mac_index), u32temp);
 
 		nes_init_phy(nesdev);
-
 	}
 
 	return netdev;
diff --git a/drivers/infiniband/hw/nes/nes_verbs.c b/drivers/infiniband/hw/nes/nes_verbs.c
index 815725f886c4..69928296d74b 100644
--- a/drivers/infiniband/hw/nes/nes_verbs.c
+++ b/drivers/infiniband/hw/nes/nes_verbs.c
@@ -1323,6 +1323,7 @@ static struct ib_qp *nes_create_qp(struct ib_pd *ibpd,
 			nesqp->nesqp_context->aeq_token_low =  cpu_to_le32((u32)((unsigned long)(nesqp)));
 			nesqp->nesqp_context->aeq_token_high =  cpu_to_le32((u32)(upper_32_bits((unsigned long)(nesqp))));
 			nesqp->nesqp_context->ird_ord_sizes = cpu_to_le32(NES_QPCONTEXT_ORDIRD_ALSMM |
+					NES_QPCONTEXT_ORDIRD_AAH |
 					((((u32)nesadapter->max_irrq_wr) <<
 					NES_QPCONTEXT_ORDIRD_IRDSIZE_SHIFT) & NES_QPCONTEXT_ORDIRD_IRDSIZE_MASK));
 			if (disable_mpa_crc) {