Merge tag 'hyperv-next-signed-20210629' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

Pull hyperv updates from Wei Liu:
 "Just a few minor enhancement patches and bug fixes"

* tag 'hyperv-next-signed-20210629' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux:
  PCI: hv: Add check for hyperv_initialized in init_hv_pci_drv()
  Drivers: hv: Move Hyper-V extended capability check to arch neutral code
  drivers: hv: Fix missing error code in vmbus_connect()
  x86/hyperv: fix logical processor creation
  hv_utils: Fix passing zero to 'PTR_ERR' warning
  scsi: storvsc: Use blk_mq_unique_tag() to generate requestIDs
  Drivers: hv: vmbus: Copy packets sent by Hyper-V out of the ring buffer
  hv_balloon: Remove redundant assignment to region_start

3 files changed, 18 insertions, 3 deletions

diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 442c520ab8f3..b11aa68b44ec 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -895,9 +895,16 @@ static inline u32 netvsc_rqstor_size(unsigned long ringbytes)
 		ringbytes / NETVSC_MIN_IN_MSG_SIZE;
 }
 
+/* XFER PAGE packets can specify a maximum of 375 ranges for NDIS >= 6.0
+ * and a maximum of 64 ranges for NDIS < 6.0 with no RSC; with RSC, this
+ * limit is raised to 562 (= NVSP_RSC_MAX).
+ */
+#define NETVSC_MAX_XFER_PAGE_RANGES NVSP_RSC_MAX
 #define NETVSC_XFER_HEADER_SIZE(rng_cnt) \
 		(offsetof(struct vmtransfer_page_packet_header, ranges) + \
 		(rng_cnt) * sizeof(struct vmtransfer_page_range))
+#define NETVSC_MAX_PKT_SIZE (NETVSC_XFER_HEADER_SIZE(NETVSC_MAX_XFER_PAGE_RANGES) + \
+		sizeof(struct nvsp_message) + (sizeof(u32) * VRSS_SEND_TAB_SIZE))
 
 struct multi_send_data {
 	struct sk_buff *skb; /* skb containing the pkt */
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 9d07c9ce4be2..7bd935412853 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -757,7 +757,7 @@ static void netvsc_send_tx_complete(struct net_device *ndev,
 	int queue_sends;
 	u64 cmd_rqst;
 
-	cmd_rqst = vmbus_request_addr(&channel->requestor, (u64)desc->trans_id);
+	cmd_rqst = channel->request_addr_callback(channel, (u64)desc->trans_id);
 	if (cmd_rqst == VMBUS_RQST_ERROR) {
 		netdev_err(ndev, "Incorrect transaction id\n");
 		return;
@@ -817,8 +817,8 @@ static void netvsc_send_completion(struct net_device *ndev,
 
 	/* First check if this is a VMBUS completion without data payload */
 	if (!msglen) {
-		cmd_rqst = vmbus_request_addr(&incoming_channel->requestor,
-					      (u64)desc->trans_id);
+		cmd_rqst = incoming_channel->request_addr_callback(incoming_channel,
+								   (u64)desc->trans_id);
 		if (cmd_rqst == VMBUS_RQST_ERROR) {
 			netdev_err(ndev, "Invalid transaction id\n");
 			return;
@@ -1649,7 +1649,11 @@ struct netvsc_device *netvsc_device_add(struct hv_device *device,
 		       netvsc_poll, NAPI_POLL_WEIGHT);
 
 	/* Open the channel */
+	device->channel->next_request_id_callback = vmbus_next_request_id;
+	device->channel->request_addr_callback = vmbus_request_addr;
 	device->channel->rqstor_size = netvsc_rqstor_size(netvsc_ring_bytes);
+	device->channel->max_pkt_size = NETVSC_MAX_PKT_SIZE;
+
 	ret = vmbus_open(device->channel, netvsc_ring_bytes,
 			 netvsc_ring_bytes,  NULL, 0,
 			 netvsc_channel_cb, net_device->chan_table);
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index c0e89e107d57..983bf362466a 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -1259,7 +1259,11 @@ static void netvsc_sc_open(struct vmbus_channel *new_sc)
 	/* Set the channel before opening.*/
 	nvchan->channel = new_sc;
 
+	new_sc->next_request_id_callback = vmbus_next_request_id;
+	new_sc->request_addr_callback = vmbus_request_addr;
 	new_sc->rqstor_size = netvsc_rqstor_size(netvsc_ring_bytes);
+	new_sc->max_pkt_size = NETVSC_MAX_PKT_SIZE;
+
 	ret = vmbus_open(new_sc, netvsc_ring_bytes,
 			 netvsc_ring_bytes, NULL, 0,
 			 netvsc_channel_cb, nvchan);