Merge tag 'net-next-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev...

[linux-2.6-microblaze.git] / drivers / net / hyperv / hyperv_net.h

diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 9e5eee4..bc48855 100644 (file)
--- 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 */