Update Linux to v5.10.157
Sourced from [1]
[1] https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.10.157.tar.xz
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
Change-Id: I7b30d9e98d8c465d6b44de8e7433b4a40b3289ba
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index a0f338c..3678784 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -977,7 +977,8 @@
u32 vf_alloc;
/* Serial number of the VF to team with */
u32 vf_serial;
-
+ /* completion variable to confirm vf association */
+ struct completion vf_add;
/* Is the current data path through the VF NIC? */
bool data_path_is_vf;
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 6a7ab93..d15da82 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -1327,6 +1327,10 @@
net_device_ctx->vf_alloc = nvmsg->msg.v4_msg.vf_assoc.allocated;
net_device_ctx->vf_serial = nvmsg->msg.v4_msg.vf_assoc.serial;
+
+ if (net_device_ctx->vf_alloc)
+ complete(&net_device_ctx->vf_add);
+
netdev_info(ndev, "VF slot %u %s\n",
net_device_ctx->vf_serial,
net_device_ctx->vf_alloc ? "added" : "removed");
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index e367638..f2020be 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -2290,6 +2290,7 @@
{
struct device *parent = vf_netdev->dev.parent;
struct net_device_context *ndev_ctx;
+ struct net_device *ndev;
struct pci_dev *pdev;
u32 serial;
@@ -2316,6 +2317,18 @@
return hv_get_drvdata(ndev_ctx->device_ctx);
}
+ /* Fallback path to check synthetic vf with
+ * help of mac addr
+ */
+ list_for_each_entry(ndev_ctx, &netvsc_dev_list, list) {
+ ndev = hv_get_drvdata(ndev_ctx->device_ctx);
+ if (ether_addr_equal(vf_netdev->perm_addr, ndev->perm_addr)) {
+ netdev_notice(vf_netdev,
+ "falling back to mac addr based matching\n");
+ return ndev;
+ }
+ }
+
netdev_notice(vf_netdev,
"no netdev found for vf serial:%u\n", serial);
return NULL;
@@ -2406,6 +2419,11 @@
return NOTIFY_OK;
net_device_ctx->data_path_is_vf = vf_is_up;
+ if (vf_is_up && !net_device_ctx->vf_alloc) {
+ netdev_info(ndev, "Waiting for the VF association from host\n");
+ wait_for_completion(&net_device_ctx->vf_add);
+ }
+
netvsc_switch_datapath(ndev, vf_is_up);
netdev_info(ndev, "Data path switched %s VF: %s\n",
vf_is_up ? "to" : "from", vf_netdev->name);
@@ -2429,6 +2447,7 @@
netvsc_vf_setxdp(vf_netdev, NULL);
+ reinit_completion(&net_device_ctx->vf_add);
netdev_rx_handler_unregister(vf_netdev);
netdev_upper_dev_unlink(vf_netdev, ndev);
RCU_INIT_POINTER(net_device_ctx->vf_netdev, NULL);
@@ -2466,6 +2485,7 @@
INIT_DELAYED_WORK(&net_device_ctx->dwork, netvsc_link_change);
+ init_completion(&net_device_ctx->vf_add);
spin_lock_init(&net_device_ctx->lock);
INIT_LIST_HEAD(&net_device_ctx->reconfig_events);
INIT_DELAYED_WORK(&net_device_ctx->vf_takeover, netvsc_vf_setup);
@@ -2629,7 +2649,10 @@
/* Save the current config info */
ndev_ctx->saved_netvsc_dev_info = netvsc_devinfo_get(nvdev);
-
+ if (!ndev_ctx->saved_netvsc_dev_info) {
+ ret = -ENOMEM;
+ goto out;
+ }
ret = netvsc_detach(net, nvdev);
out:
rtnl_unlock();