Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

c18bb396 · Linus Torvalds <[email protected]> · 2018-04-09 17:04:10 -07:00

Pull networking fixes from David Miller:

 1) The sockmap code has to free socket memory on close if there is
    corked data, from John Fastabend.

 2) Tunnel names coming from userspace need to be length validated. From
    Eric Dumazet.

 3) arp_filter() has to take VRFs properly into account, from Miguel
    Fadon Perlines.

 4) Fix oops in error path of tcf_bpf_init(), from Davide Caratti.

 5) Missing idr_remove() in u32_delete_key(), from Cong Wang.

 6) More syzbot stuff. Several use of uninitialized value fixes all
    over, from Eric Dumazet.

 7) Do not leak kernel memory to userspace in sctp, also from Eric
    Dumazet.

 8) Discard frames from unused ports in DSA, from Andrew Lunn.

 9) Fix DMA mapping and reset/failover problems in ibmvnic, from Thomas
    Falcon.

10) Do not access dp83640 PHY registers prematurely after reset, from
    Esben Haabendal.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (46 commits)
  vhost-net: set packet weight of tx polling to 2 * vq size
  net: thunderx: rework mac addresses list to u64 array
  inetpeer: fix uninit-value in inet_getpeer
  dp83640: Ensure against premature access to PHY registers after reset
  devlink: convert occ_get op to separate registration
  ARM: dts: ls1021a: Specify TBIPA register address
  net/fsl_pq_mdio: Allow explicit speficition of TBIPA address
  ibmvnic: Do not reset CRQ for Mobility driver resets
  ibmvnic: Fix failover case for non-redundant configuration
  ibmvnic: Fix reset scheduler error handling
  ibmvnic: Zero used TX descriptor counter on reset
  ibmvnic: Fix DMA mapping mistakes
  tipc: use the right skb in tipc_sk_fill_sock_diag()
  sctp: sctp_sockaddr_af must check minimal addr length for AF_INET6
  net: dsa: Discard frames from unused ports
  sctp: do not leak kernel memory to user space
  soreuseport: initialise timewait reuseport field
  ipv4: fix uninit-value in ip_route_output_key_hash_rcu()
  dccp: initialize ireq->ir_mark
  net: fix uninit-value in __hw_addr_add_ex()
  ...

Commit: c18bb396d3d261ebbb4efbc05129c5d354c541e4
Parents: fd3b36d2 · a2ac9990

Merge commit. Changes below are compared with the first parent: fd3b36d2.

Changes

53 files changed · +553 −298

File	Status	Add	Del	Content
Documentation/devicetree/bindings/net/fsl-tsec-phy.txt	modified	+5	−1	View file
arch/arm/boot/dts/ls1021a.dtsi	modified	+2	−1	View file
crypto/af_alg.c	modified	+4	−4	View file
drivers/net/ethernet/cavium/thunder/nic.h	modified	+1	−6	View file
drivers/net/ethernet/cavium/thunder/nicvf_main.c	modified	+10	−18	View file
drivers/net/ethernet/freescale/fsl_pq_mdio.c	modified	+34	−16	View file
drivers/net/ethernet/ibm/ibmvnic.c	modified	+97	−49	View file
drivers/net/ethernet/ibm/ibmvnic.h	modified	+1	−0	View file
drivers/net/ethernet/intel/ice/ice_common.c	modified	+3	−1	View file
drivers/net/ethernet/intel/ice/ice_ethtool.c	modified	+2	−2	View file
drivers/net/ethernet/marvell/mvpp2.c	modified	+1	−1	View file
drivers/net/ethernet/mellanox/mlxsw/spectrum.c	modified	+4	−20	View file
drivers/net/ethernet/mellanox/mlxsw/spectrum.h	modified	+0	−1	View file
drivers/net/ethernet/mellanox/mlxsw/spectrum_kvdl.c	modified	+39	−28	View file
drivers/net/hyperv/netvsc.c	modified	+44	−16	View file
drivers/net/netdevsim/devlink.c	modified	+31	−34	View file
drivers/net/phy/dp83640.c	modified	+18	−0	View file
drivers/net/phy/marvell.c	modified	+18	−2	View file
drivers/vhost/net.c	modified	+7	−1	View file
include/net/bluetooth/hci_core.h	modified	+1	−1	View file
include/net/devlink.h	modified	+26	−14	View file
include/net/inet_timewait_sock.h	modified	+1	−0	View file
include/net/nexthop.h	modified	+1	−1	View file
kernel/bpf/sockmap.c	modified	+10	−2	View file
kernel/bpf/syscall.c	modified	+12	−12	View file
net/bluetooth/hci_conn.c	modified	+21	−8	View file
net/bluetooth/hci_event.c	modified	+11	−4	View file
net/bluetooth/l2cap_core.c	modified	+1	−1	View file
net/core/dev.c	modified	+1	−1	View file
net/core/dev_addr_lists.c	modified	+2	−2	View file
net/core/devlink.c	modified	+65	−9	View file
net/core/skbuff.c	modified	+1	−0	View file
net/dccp/ipv4.c	modified	+1	−0	View file
net/dccp/ipv6.c	modified	+1	−0	View file
net/dsa/dsa_priv.h	modified	+7	−1	View file
net/ipv4/arp.c	modified	+1	−1	View file
net/ipv4/inet_timewait_sock.c	modified	+1	−0	View file
net/ipv4/inetpeer.c	modified	+1	−0	View file
net/ipv4/ip_tunnel.c	modified	+6	−5	View file
net/ipv4/route.c	modified	+6	−5	View file
net/ipv6/ip6_gre.c	modified	+5	−3	View file
net/ipv6/ip6_output.c	modified	+5	−2	View file
net/ipv6/ip6_tunnel.c	modified	+7	−4	View file
net/ipv6/ip6_vti.c	modified	+5	−2	View file
net/ipv6/sit.c	modified	+5	−3	View file
net/netlink/af_netlink.c	modified	+2	−0	View file
net/sched/act_bpf.c	modified	+8	−4	View file
net/sched/cls_u32.c	modified	+1	−0	View file
net/sctp/ipv6.c	modified	+3	−1	View file
net/sctp/socket.c	modified	+8	−5	View file
net/tipc/diag.c	modified	+1	−1	View file
net/tipc/socket.c	modified	+3	−3	View file
net/tipc/socket.h	modified	+2	−2	View file

Only the first 600 diff lines are shown. Download the complete patch.

Documentation/devicetree/bindings/net/fsl-tsec-phy.txt

View file

diff --git a/Documentation/devicetree/bindings/net/fsl-tsec-phy.txt b/Documentation/devicetree/bindings/net/fsl-tsec-phy.txt
index 594982c..79bf352 100644
--- a/Documentation/devicetree/bindings/net/fsl-tsec-phy.txt
+++ b/Documentation/devicetree/bindings/net/fsl-tsec-phy.txt
@@ -6,7 +6,11 @@ the definition of the PHY node in booting-without-of.txt for an example
 of how to define a PHY.
 
 Required properties:
-  - reg : Offset and length of the register set for the device
+  - reg : Offset and length of the register set for the device, and optionally
+          the offset and length of the TBIPA register (TBI PHY address
+	  register).  If TBIPA register is not specified, the driver will
+	  attempt to infer it from the register set specified (your mileage may
+	  vary).
   - compatible : Should define the compatible device type for the
     mdio. Currently supported strings/devices are:
 	- "fsl,gianfar-tbi"

arch/arm/boot/dts/ls1021a.dtsi

View file

diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi
index fbd2897..c55d479 100644
--- a/arch/arm/boot/dts/ls1021a.dtsi
+++ b/arch/arm/boot/dts/ls1021a.dtsi
@@ -587,7 +587,8 @@
 			device_type = "mdio";
 			#address-cells = <1>;
 			#size-cells = <0>;
-			reg = <0x0 0x2d24000 0x0 0x4000>;
+			reg = <0x0 0x2d24000 0x0 0x4000>,
+			      <0x0 0x2d10030 0x0 0x4>;
 		};
 
 		ptp_clock@2d10e00 {

crypto/af_alg.c

View file

diff --git a/crypto/af_alg.c b/crypto/af_alg.c
index c49766b..7846c0c 100644
--- a/crypto/af_alg.c
+++ b/crypto/af_alg.c
@@ -158,16 +158,16 @@ static int alg_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 	void *private;
 	int err;
 
-	/* If caller uses non-allowed flag, return error. */
-	if ((sa->salg_feat & ~allowed) || (sa->salg_mask & ~allowed))
-		return -EINVAL;
-
 	if (sock->state == SS_CONNECTED)
 		return -EINVAL;
 
 	if (addr_len < sizeof(*sa))
 		return -EINVAL;
 
+	/* If caller uses non-allowed flag, return error. */
+	if ((sa->salg_feat & ~allowed) || (sa->salg_mask & ~allowed))
+		return -EINVAL;
+
 	sa->salg_type[sizeof(sa->salg_type) - 1] = 0;
 	sa->salg_name[sizeof(sa->salg_name) + addr_len - sizeof(*sa) - 1] = 0;
 

drivers/net/ethernet/cavium/thunder/nic.h

View file

diff --git a/drivers/net/ethernet/cavium/thunder/nic.h b/drivers/net/ethernet/cavium/thunder/nic.h
index 5fc46c5..448d1fa 100644
--- a/drivers/net/ethernet/cavium/thunder/nic.h
+++ b/drivers/net/ethernet/cavium/thunder/nic.h
@@ -265,14 +265,9 @@ struct nicvf_drv_stats {
 
 struct cavium_ptp;
 
-struct xcast_addr {
-	struct list_head list;
-	u64              addr;
-};
-
 struct xcast_addr_list {
-	struct list_head list;
 	int              count;
+	u64              mc[];
 };
 
 struct nicvf_work {

drivers/net/ethernet/cavium/thunder/nicvf_main.c

View file

diff --git a/drivers/net/ethernet/cavium/thunder/nicvf_main.c b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
index 1e9a31f..707db33 100644
--- a/drivers/net/ethernet/cavium/thunder/nicvf_main.c
+++ b/drivers/net/ethernet/cavium/thunder/nicvf_main.c
@@ -1929,7 +1929,7 @@ static void nicvf_set_rx_mode_task(struct work_struct *work_arg)
 						  work.work);
 	struct nicvf *nic = container_of(vf_work, struct nicvf, rx_mode_work);
 	union nic_mbx mbx = {};
-	struct xcast_addr *xaddr, *next;
+	int idx;
 
 	if (!vf_work)
 		return;
@@ -1956,16 +1956,10 @@ static void nicvf_set_rx_mode_task(struct work_struct *work_arg)
 	/* check if we have any specific MACs to be added to PF DMAC filter */
 	if (vf_work->mc) {
 		/* now go through kernel list of MACs and add them one by one */
-		list_for_each_entry_safe(xaddr, next,
-					 &vf_work->mc->list, list) {
+		for (idx = 0; idx < vf_work->mc->count; idx++) {
 			mbx.xcast.msg = NIC_MBOX_MSG_ADD_MCAST;
-			mbx.xcast.data.mac = xaddr->addr;
+			mbx.xcast.data.mac = vf_work->mc->mc[idx];
 			nicvf_send_msg_to_pf(nic, &mbx);
-
-			/* after receiving ACK from PF release memory */
-			list_del(&xaddr->list);
-			kfree(xaddr);
-			vf_work->mc->count--;
 		}
 		kfree(vf_work->mc);
 	}
@@ -1996,17 +1990,15 @@ static void nicvf_set_rx_mode(struct net_device *netdev)
 			mode |= BGX_XCAST_MCAST_FILTER;
 			/* here we need to copy mc addrs */
 			if (netdev_mc_count(netdev)) {
-				struct xcast_addr *xaddr;
-
-				mc_list = kmalloc(sizeof(*mc_list), GFP_ATOMIC);
-				INIT_LIST_HEAD(&mc_list->list);
+				mc_list = kmalloc(offsetof(typeof(*mc_list),
+							   mc[netdev_mc_count(netdev)]),
+						  GFP_ATOMIC);
+				if (unlikely(!mc_list))
+					return;
+				mc_list->count = 0;
 				netdev_hw_addr_list_for_each(ha, &netdev->mc) {
-					xaddr = kmalloc(sizeof(*xaddr),
-							GFP_ATOMIC);
-					xaddr->addr =
+					mc_list->mc[mc_list->count] =
 						ether_addr_to_u64(ha->addr);
-					list_add_tail(&xaddr->list,
-						      &mc_list->list);
 					mc_list->count++;
 				}
 			}

drivers/net/ethernet/freescale/fsl_pq_mdio.c

View file

diff --git a/drivers/net/ethernet/freescale/fsl_pq_mdio.c b/drivers/net/ethernet/freescale/fsl_pq_mdio.c
index 80ad16a..ac2c3f6 100644
--- a/drivers/net/ethernet/freescale/fsl_pq_mdio.c
+++ b/drivers/net/ethernet/freescale/fsl_pq_mdio.c
@@ -377,6 +377,38 @@ static const struct of_device_id fsl_pq_mdio_match[] = {
 };
 MODULE_DEVICE_TABLE(of, fsl_pq_mdio_match);
 
+static void set_tbipa(const u32 tbipa_val, struct platform_device *pdev,
+		      uint32_t __iomem * (*get_tbipa)(void __iomem *),
+		      void __iomem *reg_map, struct resource *reg_res)
+{
+	struct device_node *np = pdev->dev.of_node;
+	uint32_t __iomem *tbipa;
+	bool tbipa_mapped;
+
+	tbipa = of_iomap(np, 1);
+	if (tbipa) {
+		tbipa_mapped = true;
+	} else {
+		tbipa_mapped = false;
+		tbipa = (*get_tbipa)(reg_map);
+
+		/*
+		 * Add consistency check to make sure TBI is contained within
+		 * the mapped range (not because we would get a segfault,
+		 * rather to catch bugs in computing TBI address). Print error
+		 * message but continue anyway.
+		 */
+		if ((void *)tbipa > reg_map + resource_size(reg_res) - 4)
+			dev_err(&pdev->dev, "invalid register map (should be at least 0x%04zx to contain TBI address)\n",
+				((void *)tbipa - reg_map) + 4);
+	}
+
+	iowrite32be(be32_to_cpu(tbipa_val), tbipa);
+
+	if (tbipa_mapped)
+		iounmap(tbipa);
+}
+
 static int fsl_pq_mdio_probe(struct platform_device *pdev)
 {
 	const struct of_device_id *id =
@@ -450,8 +482,6 @@ static int fsl_pq_mdio_probe(struct platform_device *pdev)
 
 		if (tbi) {
 			const u32 *prop = of_get_property(tbi, "reg", NULL);
-			uint32_t __iomem *tbipa;
-
 			if (!prop) {
 				dev_err(&pdev->dev,
 					"missing 'reg' property in node %pOF\n",
@@ -459,20 +489,8 @@ static int fsl_pq_mdio_probe(struct platform_device *pdev)
 				err = -EBUSY;
 				goto error;
 			}
-
-			tbipa = data->get_tbipa(priv->map);
-
-			/*
-			 * Add consistency check to make sure TBI is contained
-			 * within the mapped range (not because we would get a
-			 * segfault, rather to catch bugs in computing TBI
-			 * address). Print error message but continue anyway.
-			 */
-			if ((void *)tbipa > priv->map + resource_size(&res) - 4)
-				dev_err(&pdev->dev, "invalid register map (should be at least 0x%04zx to contain TBI address)\n",
-					((void *)tbipa - priv->map) + 4);
-
-			iowrite32be(be32_to_cpup(prop), tbipa);
+			set_tbipa(*prop, pdev,
+				  data->get_tbipa, priv->map, &res);
 		}
 	}
 

drivers/net/ethernet/ibm/ibmvnic.c

View file

diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c
index b492af6..aad5658 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.c
+++ b/drivers/net/ethernet/ibm/ibmvnic.c
@@ -118,6 +118,7 @@ static int init_sub_crq_irqs(struct ibmvnic_adapter *adapter);
 static int ibmvnic_init(struct ibmvnic_adapter *);
 static void release_crq_queue(struct ibmvnic_adapter *);
 static int __ibmvnic_set_mac(struct net_device *netdev, struct sockaddr *p);
+static int init_crq_queue(struct ibmvnic_adapter *adapter);
 
 struct ibmvnic_stat {
 	char name[ETH_GSTRING_LEN];
@@ -320,18 +321,16 @@ failure:
 	dev_info(dev, "replenish pools failure\n");
 	pool->free_map[pool->next_free] = index;
 	pool->rx_buff[index].skb = NULL;
-	if (!dma_mapping_error(dev, dma_addr))
-		dma_unmap_single(dev, dma_addr, pool->buff_size,
-				 DMA_FROM_DEVICE);
 
 	dev_kfree_skb_any(skb);
 	adapter->replenish_add_buff_failure++;
 	atomic_add(buffers_added, &pool->available);
 
-	if (lpar_rc == H_CLOSED) {
+	if (lpar_rc == H_CLOSED || adapter->failover_pending) {
 		/* Disable buffer pool replenishment and report carrier off if
-		 * queue is closed. Firmware guarantees that a signal will
-		 * be sent to the driver, triggering a reset.
+		 * queue is closed or pending failover.
+		 * Firmware guarantees that a signal will be sent to the
+		 * driver, triggering a reset.
 		 */
 		deactivate_rx_pools(adapter);
 		netif_carrier_off(adapter->netdev);
@@ -1071,6 +1070,14 @@ static int ibmvnic_open(struct net_device *netdev)
 	struct ibmvnic_adapter *adapter = netdev_priv(netdev);
 	int rc;
 
+	/* If device failover is pending, just set device state and return.
+	 * Device operation will be handled by reset routine.
+	 */
+	if (adapter->failover_pending) {
+		adapter->state = VNIC_OPEN;
+		return 0;
+	}
+
 	mutex_lock(&adapter->reset_lock);
 
 	if (adapter->state != VNIC_CLOSED) {
@@ -1218,7 +1225,6 @@ static int __ibmvnic_close(struct net_device *netdev)
 	rc = set_link_state(adapter, IBMVNIC_LOGICAL_LNK_DN);
 	if (rc)
 		return rc;
-	ibmvnic_cleanup(netdev);
 	adapter->state = VNIC_CLOSED;
 	return 0;
 }
@@ -1228,8 +1234,17 @@ static int ibmvnic_close(struct net_device *netdev)
 	struct ibmvnic_adapter *adapter = netdev_priv(netdev);
 	int rc;
 
+	/* If device failover is pending, just set device state and return.
+	 * Device operation will be handled by reset routine.
+	 */
+	if (adapter->failover_pending) {
+		adapter->state = VNIC_CLOSED;
+		return 0;
+	}
+
 	mutex_lock(&adapter->reset_lock);
 	rc = __ibmvnic_close(netdev);
+	ibmvnic_cleanup(netdev);
 	mutex_unlock(&adapter->reset_lock);
 
 	return rc;
@@ -1562,8 +1577,9 @@ static int ibmvnic_xmit(struct sk_buff *skb, struct net_device *netdev)
 		dev_kfree_skb_any(skb);
 		tx_buff->skb = NULL;
 
-		if (lpar_rc == H_CLOSED) {
-			/* Disable TX and report carrier off if queue is closed.
+		if (lpar_rc == H_CLOSED || adapter->failover_pending) {
+			/* Disable TX and report carrier off if queue is closed
+			 * or pending failover.
 			 * Firmware guarantees that a signal will be sent to the
 			 * driver, triggering a reset or some other action.
 			 */
@@ -1711,14 +1727,10 @@ static int do_reset(struct ibmvnic_adapter *adapter,
 	old_num_rx_queues = adapter->req_rx_queues;
 	old_num_tx_queues = adapter->req_tx_queues;
 
-	if (rwi->reset_reason == VNIC_RESET_MOBILITY) {
-		rc = ibmvnic_reenable_crq_queue(adapter);
-		if (rc)
-			return 0;
-		ibmvnic_cleanup(netdev);
-	} else if (rwi->reset_reason == VNIC_RESET_FAILOVER) {
-		ibmvnic_cleanup(netdev);
-	} else {
+	ibmvnic_cleanup(netdev);
+
+	if (adapter->reset_reason != VNIC_RESET_MOBILITY &&
+	    adapter->reset_reason != VNIC_RESET_FAILOVER) {
 		rc = __ibmvnic_close(netdev);
 		if (rc)
 			return rc;
@@ -1737,6 +1749,23 @@ static int do_reset(struct ibmvnic_adapter *adapter,
 		 */
 		adapter->state = VNIC_PROBED;
 
+		if (adapter->wait_for_reset) {
+			rc = init_crq_queue(adapter);
+		} else if (adapter->reset_reason == VNIC_RESET_MOBILITY) {
+			rc = ibmvnic_reenable_crq_queue(adapter);
+			release_sub_crqs(adapter, 1);
+		} else {
+			rc = ibmvnic_reset_crq(adapter);
+			if (!rc)
+				rc = vio_enable_interrupts(adapter->vdev);
+		}
+
+		if (rc) {
+			netdev_err(adapter->netdev,
+				   "Couldn't initialize crq. rc=%d\n", rc);
+			return rc;
+		}
+
 		rc = ibmvnic_init(adapter);
 		if (rc)
 			return IBMVNIC_INIT_FAILED;
@@ -1878,23 +1907,26 @@ static void __ibmvnic_reset(struct work_struct *work)
 	mutex_unlock(&adapter->reset_lock);
 }
 
-static void ibmvnic_reset(struct ibmvnic_adapter *adapter,
-			  enum ibmvnic_reset_reason reason)
+static int ibmvnic_reset(struct ibmvnic_adapter *adapter,
+			 enum ibmvnic_reset_reason reason)
 {
 	struct ibmvnic_rwi *rwi, *tmp;
 	struct net_device *netdev = adapter->netdev;
 	struct list_head *entry;
+	int ret;
 
 	if (adapter->state == VNIC_REMOVING ||
-	    adapter->state == VNIC_REMOVED) {
-		netdev_dbg(netdev, "Adapter removing, skipping reset\n");
-		return;
+	    adapter->state == VNIC_REMOVED ||
+	    adapter->failover_pending) {
+		ret = EBUSY;
+		netdev_dbg(netdev, "Adapter removing or pending failover, skipping reset\n");
+		goto err;
 	}
 
 	if (adapter->state == VNIC_PROBING) {
 		netdev_warn(netdev, "Adapter reset during probe\n");
-		adapter->init_done_rc = EAGAIN;
-		return;
+		ret = adapter->init_done_rc = EAGAIN;
+		goto err;
 	}
 
 	mutex_lock(&adapter->rwi_lock);
@@ -1904,7 +1936,8 @@ static void ibmvnic_reset(struct ibmvnic_adapter *adapter,
 		if (tmp->reset_reason == reason) {
 			netdev_dbg(netdev, "Skipping matching reset\n");
 			mutex_unlock(&adapter->rwi_lock);
-			return;
+			ret = EBUSY;
+			goto err;
 		}
 	}
 
@@ -1912,7 +1945,8 @@ static void ibmvnic_reset(struct ibmvnic_adapter *adapter,
 	if (!rwi) {
 		mutex_unlock(&adapter->rwi_lock);
 		ibmvnic_close(netdev);
-		return;
+		ret = ENOMEM;
+		goto err;
 	}
 
 	rwi->reset_reason = reason;
@@ -1921,6 +1955,12 @@ static void ibmvnic_reset(struct ibmvnic_adapter *adapter,
 
 	netdev_dbg(adapter->netdev, "Scheduling reset (reason %d)\n", reason);
 	schedule_work(&adapter->ibmvnic_reset);
+
+	return 0;
+err:
+	if (adapter->wait_for_reset)
+		adapter->wait_for_reset = false;
+	return -ret;
 }
 
 static void ibmvnic_tx_timeout(struct net_device *dev)
@@ -2055,6 +2095,8 @@ static void ibmvnic_netpoll_controller(struct net_device *dev)
 
 static int wait_for_reset(struct ibmvnic_adapter *adapter)
 {
+	int rc, ret;
+
 	adapter->fallback.mtu = adapter->req_mtu;
 	adapter->fallback.rx_queues = adapter->req_rx_queues;
 	adapter->fallback.tx_queues = adapter->req_tx_queues;
@@ -2062,11 +2104,15 @@ static int wait_for_reset(struct ibmvnic_adapter *adapter)
 	adapter->fallback.tx_entries = adapter->req_tx_entries_per_subcrq;
 
 	init_completion(&adapter->reset_done);
-	ibmvnic_reset(adapter, VNIC_RESET_CHANGE_PARAM);
 	adapter->wait_for_reset = true;
+	rc = ibmvnic_reset(adapter, VNIC_RESET_CHANGE_PARAM);
+	if (rc)
+		return rc;
 	wait_for_completion(&adapter->reset_done);
 
+	ret = 0;
 	if (adapter->reset_done_rc) {
+		ret = -EIO;
 		adapter->desired.mtu = adapter->fallback.mtu;
 		adapter->desired.rx_queues = adapter->fallback.rx_queues;
 		adapter->desired.tx_queues = adapter->fallback.tx_queues;
@@ -2074,12 +2120,15 @@ static int wait_for_reset(struct ibmvnic_adapter *adapter)
 		adapter->desired.tx_entries = adapter->fallback.tx_entries;
 
 		init_completion(&adapter->reset_done);
-		ibmvnic_reset(adapter, VNIC_RESET_CHANGE_PARAM);
+		adapter->wait_for_reset = true;
+		rc = ibmvnic_reset(adapter, VNIC_RESET_CHANGE_PARAM);
+		if (rc)
+			return ret;
 		wait_for_completion(&adapter->reset_done);
 	}
 	adapter->wait_for_reset = false;
 
-	return adapter->reset_done_rc;
+	return ret;
 }
 
 static int ibmvnic_change_mtu(struct net_device *netdev, int new_mtu)
@@ -2364,6 +2413,7 @@ static int reset_one_sub_crq_queue(struct ibmvnic_adapter *adapter,
 	}
 
 	memset(scrq->msgs, 0, 4 * PAGE_SIZE);
+	atomic_set(&scrq->used, 0);
 	scrq->cur = 0;
 
 	rc = h_reg_sub_crq(adapter->vdev->unit_address, scrq->msg_token,
@@ -2574,7 +2624,7 @@ static int ibmvnic_complete_tx(struct ibmvnic_adapter *adapter,
 	union sub_crq *next;
 	int index;
 	int i, j;
-	u8 first;
+	u8 *first;
 
 restart_loop:
 	while (pending_scrq(adapter, scrq)) {
@@ -2605,11 +2655,12 @@ restart_loop:
 				txbuff->data_dma[j] = 0;
 			}
 			/* if sub_crq was sent indirectly */
-			first = txbuff->indir_arr[0].generic.first;
-			if (first == IBMVNIC_CRQ_CMD) {
+			first = &txbuff->indir_arr[0].generic.first;
+			if (*first == IBMVNIC_CRQ_CMD) {
 				dma_unmap_single(dev, txbuff->indir_dma,
 						 sizeof(txbuff->indir_arr),
 						 DMA_TO_DEVICE);
+				*first = 0;
 			}
 
 			if (txbuff->last_frag) {
@@ -3882,9 +3933,9 @@ static int handle_login_rsp(union ibmvnic_crq *login_rsp_crq,
 	int i;
 
 	dma_unmap_single(dev, adapter->login_buf_token, adapter->login_buf_sz,
-			 DMA_BIDIRECTIONAL);
+			 DMA_TO_DEVICE);
 	dma_unmap_single(dev, adapter->login_rsp_buf_token,
-			 adapter->login_rsp_buf_sz, DMA_BIDIRECTIONAL);
+			 adapter->login_rsp_buf_sz, DMA_FROM_DEVICE);
 
 	/* If the number of queues requested can't be allocated by the
 	 * server, the login response will return with code 1. We will need
@@ -4144,7 +4195,9 @@ static void ibmvnic_handle_crq(union ibmvnic_crq *crq,
 		case IBMVNIC_CRQ_INIT:
 			dev_info(dev, "Partner initialized\n");
 			adapter->from_passive_init = true;
+			adapter->failover_pending = false;
 			complete(&adapter->init_done);
+			ibmvnic_reset(adapter, VNIC_RESET_FAILOVER);
 			break;
 		case IBMVNIC_CRQ_INIT_COMPLETE:
 			dev_info(dev, "Partner initialization complete\n");
@@ -4161,7 +4214,7 @@ static void ibmvnic_handle_crq(union ibmvnic_crq *crq,
 			ibmvnic_reset(adapter, VNIC_RESET_MOBILITY);
 		} else if (gen_crq->cmd == IBMVNIC_DEVICE_FAILOVER) {
 			dev_info(dev, "Backing device failover detected\n");
-			ibmvnic_reset(adapter, VNIC_RESET_FAILOVER);
+			adapter->failover_pending = true;
 		} else {
 			/* The adapter lost the connection */
 			dev_err(dev, "Virtual Adapter failed (rc=%d)\n",
@@ -4461,19 +4514,6 @@ static int ibmvnic_init(struct ibmvnic_adapter *adapter)
 	u64 old_num_rx_queues, old_num_tx_queues;
 	int rc;
 
-	if (adapter->resetting && !adapter->wait_for_reset) {
-		rc = ibmvnic_reset_crq(adapter);
-		if (!rc)
-			rc = vio_enable_interrupts(adapter->vdev);
-	} else {
-		rc = init_crq_queue(adapter);
-	}
-
-	if (rc) {
-		dev_err(dev, "Couldn't initialize crq. rc=%d\n", rc);
-		return rc;
-	}
-
 	adapter->from_passive_init = false;
 
 	old_num_rx_queues = adapter->req_rx_queues;
@@ -4498,7 +4538,8 @@ static int ibmvnic_init(struct ibmvnic_adapter *adapter)
 		return -1;
 	}
 
-	if (adapter->resetting && !adapter->wait_for_reset) {
+	if (adapter->resetting && !adapter->wait_for_reset &&
+	    adapter->reset_reason != VNIC_RESET_MOBILITY) {
 		if (adapter->req_rx_queues != old_num_rx_queues ||
 		    adapter->req_tx_queues != old_num_tx_queues) {
 			release_sub_crqs(adapter, 0);
@@ -4586,6 +4627,13 @@ static int ibmvnic_probe(struct vio_dev *dev, const struct vio_device_id *id)
 	adapter->mac_change_pending = false;
 
 	do {
+		rc = init_crq_queue(adapter);
+		if (rc) {
+			dev_err(&dev->dev, "Couldn't initialize crq. rc=%d\n",
+				rc);
+			goto ibmvnic_init_fail;
+		}
+
 		rc = ibmvnic_init(adapter);
 		if (rc && rc != EAGAIN)
 			goto ibmvnic_init_fail;

drivers/net/ethernet/ibm/ibmvnic.h

View file

diff --git a/drivers/net/ethernet/ibm/ibmvnic.h b/drivers/net/ethernet/ibm/ibmvnic.h
index 89efe70..99c0b58 100644
--- a/drivers/net/ethernet/ibm/ibmvnic.h
+++ b/drivers/net/ethernet/ibm/ibmvnic.h
@@ -1108,6 +1108,7 @@ struct ibmvnic_adapter {
 	bool napi_enabled, from_passive_init;
 
 	bool mac_change_pending;
+	bool failover_pending;
 
 	struct ibmvnic_tunables desired;
 	struct ibmvnic_tunables fallback;

drivers/net/ethernet/intel/ice/ice_common.c

View file

diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index 385f5d4..21977ec 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -468,8 +468,10 @@ enum ice_status ice_init_hw(struct ice_hw *hw)
 	mac_buf_len = sizeof(struct ice_aqc_manage_mac_read_resp);
 	mac_buf = devm_kzalloc(ice_hw_to_dev(hw), mac_buf_len, GFP_KERNEL);
 
-	if (!mac_buf)
+	if (!mac_buf) {
+		status = ICE_ERR_NO_MEMORY;
 		goto err_unroll_fltr_mgmt_struct;
+	}
 
 	status = ice_aq_manage_mac_read(hw, mac_buf, mac_buf_len, NULL);
 	devm_kfree(ice_hw_to_dev(hw), mac_buf);

drivers/net/ethernet/intel/ice/ice_ethtool.c

View file

diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c
index 186764a..1db304c 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -156,7 +156,7 @@ ice_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
 
 static int ice_get_regs_len(struct net_device __always_unused *netdev)
 {
-	return ARRAY_SIZE(ice_regs_dump_list);
+	return sizeof(ice_regs_dump_list);
 }
 
 static void
@@ -170,7 +170,7 @@ ice_get_regs(struct net_device *netdev, struct ethtool_regs *regs, void *p)
 

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