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Message-Id: <1448742045-22732-3-git-send-email-kys@microsoft.com>
Date: Sat, 28 Nov 2015 12:20:31 -0800
From: "K. Y. Srinivasan" <kys@...rosoft.com>
To: davem@...emloft.net, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org, devel@...uxdriverproject.org,
olaf@...fle.de, apw@...onical.com, jasowang@...hat.com
Cc: "K. Y. Srinivasan" <kys@...rosoft.com>
Subject: [PATCH net-next V2 03/17] hv_netvsc: Eliminate the channel field in hv_netvsc_packet structure
Eliminate the channel field in hv_netvsc_packet structure.
Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@...rosoft.com>
---
drivers/net/hyperv/hyperv_net.h | 22 ++++++++++++++++++----
drivers/net/hyperv/netvsc.c | 19 ++++++++-----------
drivers/net/hyperv/netvsc_drv.c | 5 +++--
drivers/net/hyperv/rndis_filter.c | 10 ++++++----
4 files changed, 35 insertions(+), 21 deletions(-)
diff --git a/drivers/net/hyperv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index 7435673..ac24091 100644
--- a/drivers/net/hyperv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -144,7 +144,6 @@ struct hv_netvsc_packet {
u32 total_data_buflen;
u32 pad1;
- struct vmbus_channel *channel;
u64 send_completion_tid;
void *send_completion_ctx;
@@ -199,7 +198,8 @@ void netvsc_linkstatus_callback(struct hv_device *device_obj,
void netvsc_xmit_completion(void *context);
int netvsc_recv_callback(struct hv_device *device_obj,
struct hv_netvsc_packet *packet,
- struct ndis_tcp_ip_checksum_info *csum_info);
+ struct ndis_tcp_ip_checksum_info *csum_info,
+ struct vmbus_channel *channel);
void netvsc_channel_cb(void *context);
int rndis_filter_open(struct hv_device *dev);
int rndis_filter_close(struct hv_device *dev);
@@ -207,12 +207,12 @@ int rndis_filter_device_add(struct hv_device *dev,
void *additional_info);
void rndis_filter_device_remove(struct hv_device *dev);
int rndis_filter_receive(struct hv_device *dev,
- struct hv_netvsc_packet *pkt);
+ struct hv_netvsc_packet *pkt,
+ struct vmbus_channel *channel);
int rndis_filter_set_packet_filter(struct rndis_device *dev, u32 new_filter);
int rndis_filter_set_device_mac(struct hv_device *hdev, char *mac);
-
#define NVSP_INVALID_PROTOCOL_VERSION ((u32)0xFFFFFFFF)
#define NVSP_PROTOCOL_VERSION_1 2
@@ -1262,5 +1262,19 @@ struct rndis_message {
#define TRANSPORT_INFO_IPV6_TCP ((INFO_IPV6 << 16) | INFO_TCP)
#define TRANSPORT_INFO_IPV6_UDP ((INFO_IPV6 << 16) | INFO_UDP)
+static inline struct vmbus_channel *get_channel(struct hv_netvsc_packet *packet,
+ struct netvsc_device *net_device)
+
+{
+ struct vmbus_channel *out_channel;
+
+ out_channel = net_device->chn_table[packet->q_idx];
+ if (!out_channel) {
+ out_channel = net_device->dev->channel;
+ packet->q_idx = 0;
+ }
+ return out_channel;
+}
+
#endif /* _HYPERV_NET_H */
diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
index 51e4c0f..52533ed 100644
--- a/drivers/net/hyperv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -610,6 +610,7 @@ static inline void netvsc_free_send_slot(struct netvsc_device *net_device,
}
static void netvsc_send_completion(struct netvsc_device *net_device,
+ struct vmbus_channel *incoming_channel,
struct hv_device *device,
struct vmpacket_descriptor *packet)
{
@@ -651,7 +652,7 @@ static void netvsc_send_completion(struct netvsc_device *net_device,
if (send_index != NETVSC_INVALID_INDEX)
netvsc_free_send_slot(net_device, send_index);
q_idx = nvsc_packet->q_idx;
- channel = nvsc_packet->channel;
+ channel = incoming_channel;
nvsc_packet->send_completion(nvsc_packet->
send_completion_ctx);
}
@@ -748,7 +749,7 @@ static inline int netvsc_send_pkt(
struct netvsc_device *net_device)
{
struct nvsp_message nvmsg;
- struct vmbus_channel *out_channel = packet->channel;
+ struct vmbus_channel *out_channel = get_channel(packet, net_device);
u16 q_idx = packet->q_idx;
struct net_device *ndev = net_device->ndev;
u64 req_id;
@@ -857,13 +858,9 @@ int netvsc_send(struct hv_device *device,
if (!net_device)
return -ENODEV;
- out_channel = net_device->chn_table[q_idx];
- if (!out_channel) {
- out_channel = device->channel;
- q_idx = 0;
- packet->q_idx = 0;
- }
- packet->channel = out_channel;
+ out_channel = get_channel(packet, net_device);
+ q_idx = packet->q_idx;
+
packet->send_buf_index = NETVSC_INVALID_INDEX;
packet->cp_partial = false;
@@ -1043,7 +1040,6 @@ static void netvsc_receive(struct netvsc_device *net_device,
}
count = vmxferpage_packet->range_cnt;
- netvsc_packet->channel = channel;
/* Each range represents 1 RNDIS pkt that contains 1 ethernet frame */
for (i = 0; i < count; i++) {
@@ -1055,7 +1051,7 @@ static void netvsc_receive(struct netvsc_device *net_device,
vmxferpage_packet->ranges[i].byte_count;
/* Pass it to the upper layer */
- rndis_filter_receive(device, netvsc_packet);
+ rndis_filter_receive(device, netvsc_packet, channel);
if (netvsc_packet->status != NVSP_STAT_SUCCESS)
status = NVSP_STAT_FAIL;
@@ -1150,6 +1146,7 @@ void netvsc_channel_cb(void *context)
switch (desc->type) {
case VM_PKT_COMP:
netvsc_send_completion(net_device,
+ channel,
device, desc);
break;
diff --git a/drivers/net/hyperv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 409b48e..e5f4eec 100644
--- a/drivers/net/hyperv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -686,7 +686,8 @@ void netvsc_linkstatus_callback(struct hv_device *device_obj,
*/
int netvsc_recv_callback(struct hv_device *device_obj,
struct hv_netvsc_packet *packet,
- struct ndis_tcp_ip_checksum_info *csum_info)
+ struct ndis_tcp_ip_checksum_info *csum_info,
+ struct vmbus_channel *channel)
{
struct net_device *net;
struct net_device_context *net_device_ctx;
@@ -732,7 +733,7 @@ int netvsc_recv_callback(struct hv_device *device_obj,
__vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q),
packet->vlan_tci);
- skb_record_rx_queue(skb, packet->channel->
+ skb_record_rx_queue(skb, channel->
offermsg.offer.sub_channel_index);
u64_stats_update_begin(&rx_stats->syncp);
diff --git a/drivers/net/hyperv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index 5931a79..1b04d78 100644
--- a/drivers/net/hyperv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -350,7 +350,8 @@ static inline void *rndis_get_ppi(struct rndis_packet *rpkt, u32 type)
static void rndis_filter_receive_data(struct rndis_device *dev,
struct rndis_message *msg,
- struct hv_netvsc_packet *pkt)
+ struct hv_netvsc_packet *pkt,
+ struct vmbus_channel *channel)
{
struct rndis_packet *rndis_pkt;
u32 data_offset;
@@ -393,11 +394,12 @@ static void rndis_filter_receive_data(struct rndis_device *dev,
}
csum_info = rndis_get_ppi(rndis_pkt, TCPIP_CHKSUM_PKTINFO);
- netvsc_recv_callback(dev->net_dev->dev, pkt, csum_info);
+ netvsc_recv_callback(dev->net_dev->dev, pkt, csum_info, channel);
}
int rndis_filter_receive(struct hv_device *dev,
- struct hv_netvsc_packet *pkt)
+ struct hv_netvsc_packet *pkt,
+ struct vmbus_channel *channel)
{
struct netvsc_device *net_dev = hv_get_drvdata(dev);
struct rndis_device *rndis_dev;
@@ -436,7 +438,7 @@ int rndis_filter_receive(struct hv_device *dev,
switch (rndis_msg->ndis_msg_type) {
case RNDIS_MSG_PACKET:
/* data msg */
- rndis_filter_receive_data(rndis_dev, rndis_msg, pkt);
+ rndis_filter_receive_data(rndis_dev, rndis_msg, pkt, channel);
break;
case RNDIS_MSG_INIT_C:
--
1.7.4.1
--
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