Fixed a set of bugs in netvsc module, and cleaned up some coding style issues.
Haiyang Zhang (9):
staging: hv: remove unnecessary includes in netvsc
staging: hv: add newline to log messages in netvsc
staging: hv: convert dev_<loglevel> to netdev_<loglevel> in netvsc
staging: hv: fix a kernel warning in netvsc_linkstatus_callback()
staging: hv: re-order the code in netvsc_probe()
staging: hv: fix counting of #outstanding-sends in failed sends
staging: hv: fix counting of available buffer slots when send fails
staging: hv: fix the return status of netvsc_start_xmit()
staging: hv: fix the page buffer when rndis data go across page
boundary
drivers/staging/hv/netvsc.c | 124 ++++++++++++++++++++-----------------
drivers/staging/hv/netvsc_drv.c | 46 +++++++-------
drivers/staging/hv/rndis_filter.c | 28 ++++++---
3 files changed, 111 insertions(+), 87 deletions(-)
Haiyang Zhang
2011-Jul-21 17:14 UTC
[PATCH 1/9] staging: hv: remove unnecessary includes in netvsc
hyperv.h is included by hyperv_net.h already, so no need to include it again in these C files. Signed-off-by: Haiyang Zhang <haiyangz at microsoft.com> Signed-off-by: K. Y. Srinivasan <kys at microsoft.com> --- drivers/staging/hv/netvsc.c | 1 - drivers/staging/hv/netvsc_drv.c | 1 - drivers/staging/hv/rndis_filter.c | 1 - 3 files changed, 0 insertions(+), 3 deletions(-) diff --git a/drivers/staging/hv/netvsc.c b/drivers/staging/hv/netvsc.c index 16a80b1..c3cc880 100644 --- a/drivers/staging/hv/netvsc.c +++ b/drivers/staging/hv/netvsc.c @@ -29,7 +29,6 @@ #include <linux/io.h> #include <linux/slab.h> -#include "hyperv.h" #include "hyperv_net.h" diff --git a/drivers/staging/hv/netvsc_drv.c b/drivers/staging/hv/netvsc_drv.c index 474c5f0..1325de4 100644 --- a/drivers/staging/hv/netvsc_drv.c +++ b/drivers/staging/hv/netvsc_drv.c @@ -38,7 +38,6 @@ #include <net/sock.h> #include <net/pkt_sched.h> -#include "hyperv.h" #include "hyperv_net.h" static const char *driver_name = "netvsc"; diff --git a/drivers/staging/hv/rndis_filter.c b/drivers/staging/hv/rndis_filter.c index 6db48b9..8416bf2 100644 --- a/drivers/staging/hv/rndis_filter.c +++ b/drivers/staging/hv/rndis_filter.c @@ -27,7 +27,6 @@ #include <linux/if_ether.h> #include <linux/netdevice.h> -#include "hyperv.h" #include "hyperv_net.h" -- 1.6.3.2
Haiyang Zhang
2011-Jul-21 17:14 UTC
[PATCH 2/9] staging: hv: add newline to log messages in netvsc
Signed-off-by: Haiyang Zhang <haiyangz at microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys at microsoft.com>
---
drivers/staging/hv/netvsc.c | 58 +++++++++++++++++++-------------------
drivers/staging/hv/netvsc_drv.c | 2 +-
2 files changed, 30 insertions(+), 30 deletions(-)
diff --git a/drivers/staging/hv/netvsc.c b/drivers/staging/hv/netvsc.c
index c3cc880..0eda326 100644
--- a/drivers/staging/hv/netvsc.c
+++ b/drivers/staging/hv/netvsc.c
@@ -139,7 +139,7 @@ static int netvsc_destroy_recv_buf(struct netvsc_device
*net_device)
*/
if (ret != 0) {
dev_err(&net_device->dev->device, "unable to send "
- "revoke receive buffer to netvsp");
+ "revoke receive buffer to netvsp\n");
return ret;
}
}
@@ -154,7 +154,7 @@ static int netvsc_destroy_recv_buf(struct netvsc_device
*net_device)
*/
if (ret != 0) {
dev_err(&net_device->dev->device,
- "unable to teardown receive buffer's gpadl");
+ "unable to teardown receive buffer's gpadl\n");
return -ret;
}
net_device->recv_buf_gpadl_handle = 0;
@@ -186,7 +186,7 @@ static int netvsc_init_recv_buf(struct hv_device *device)
net_device = get_outbound_net_device(device);
if (!net_device) {
dev_err(&device->device, "unable to get net device..."
- "device being destroyed?");
+ "device being destroyed?\n");
return -ENODEV;
}
@@ -195,7 +195,7 @@ static int netvsc_init_recv_buf(struct hv_device *device)
get_order(net_device->recv_buf_size));
if (!net_device->recv_buf) {
dev_err(&device->device, "unable to allocate receive "
- "buffer of size %d", net_device->recv_buf_size);
+ "buffer of size %d\n", net_device->recv_buf_size);
ret = -ENOMEM;
goto cleanup;
}
@@ -210,7 +210,7 @@ static int netvsc_init_recv_buf(struct hv_device *device)
&net_device->recv_buf_gpadl_handle);
if (ret != 0) {
dev_err(&device->device,
- "unable to establish receive buffer's gpadl");
+ "unable to establish receive buffer's gpadl\n");
goto cleanup;
}
@@ -234,7 +234,7 @@ static int netvsc_init_recv_buf(struct hv_device *device)
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
if (ret != 0) {
dev_err(&device->device,
- "unable to send receive buffer's gpadl to netvsp");
+ "unable to send receive buffer's gpadl to netvsp\n");
goto cleanup;
}
@@ -246,7 +246,7 @@ static int netvsc_init_recv_buf(struct hv_device *device)
if (init_packet->msg.v1_msg.
send_recv_buf_complete.status != NVSP_STAT_SUCCESS) {
dev_err(&device->device, "Unable to complete receive buffer
"
- "initialzation with NetVsp - status %d",
+ "initialzation with NetVsp - status %d\n",
init_packet->msg.v1_msg.
send_recv_buf_complete.status);
ret = -EINVAL;
@@ -302,7 +302,7 @@ static int netvsc_connect_vsp(struct hv_device *device)
net_device = get_outbound_net_device(device);
if (!net_device) {
dev_err(&device->device, "unable to get net device..."
- "device being destroyed?");
+ "device being destroyed?\n");
return -ENODEV;
}
@@ -401,7 +401,7 @@ int netvsc_device_remove(struct hv_device *device)
/* Wait for all send completions */
while (atomic_read(&net_device->num_outstanding_sends)) {
dev_err(&device->device,
- "waiting for %d requests to complete...",
+ "waiting for %d requests to complete...\n",
atomic_read(&net_device->num_outstanding_sends));
udelay(100);
}
@@ -425,7 +425,7 @@ int netvsc_device_remove(struct hv_device *device)
udelay(100);
/* At this point, no one should be accessing netDevice except in here */
- dev_notice(&device->device, "net device safe to remove");
+ dev_notice(&device->device, "net device safe to remove\n");
/* Now, we can close the channel safely */
vmbus_close(device->channel);
@@ -451,7 +451,7 @@ static void netvsc_send_completion(struct hv_device *device,
net_device = get_inbound_net_device(device);
if (!net_device) {
dev_err(&device->device, "unable to get net device..."
- "device being destroyed?");
+ "device being destroyed?\n");
return;
}
@@ -480,7 +480,7 @@ static void netvsc_send_completion(struct hv_device *device,
atomic_dec(&net_device->num_outstanding_sends);
} else {
dev_err(&device->device, "Unknown send completion packet type-
"
- "%d received!!", nvsp_packet->hdr.msg_type);
+ "%d received!!\n", nvsp_packet->hdr.msg_type);
}
put_net_device(device);
@@ -497,7 +497,7 @@ int netvsc_send(struct hv_device *device,
net_device = get_outbound_net_device(device);
if (!net_device) {
dev_err(&device->device, "net device (%p) shutting down..."
- "ignoring outbound packets", net_device);
+ "ignoring outbound packets\n", net_device);
return -ENODEV;
}
@@ -532,7 +532,7 @@ int netvsc_send(struct hv_device *device,
}
if (ret != 0)
- dev_err(&device->device, "Unable to send packet %p ret %d",
+ dev_err(&device->device, "Unable to send packet %p ret
%d\n",
packet, ret);
atomic_inc(&net_device->num_outstanding_sends);
@@ -566,19 +566,19 @@ retry_send_cmplt:
/* no more room...wait a bit and attempt to retry 3 times */
retries++;
dev_err(&device->device, "unable to send receive completion
pkt"
- " (tid %llx)...retrying %d", transaction_id, retries);
+ " (tid %llx)...retrying %d\n", transaction_id, retries);
if (retries < 4) {
udelay(100);
goto retry_send_cmplt;
} else {
dev_err(&device->device, "unable to send receive "
- "completion pkt (tid %llx)...give up retrying",
+ "completion pkt (tid %llx)...give up retrying\n",
transaction_id);
}
} else {
dev_err(&device->device, "unable to send receive "
- "completion pkt - %llx", transaction_id);
+ "completion pkt - %llx\n", transaction_id);
}
}
@@ -600,7 +600,7 @@ static void netvsc_receive_completion(void *context)
net_device = get_inbound_net_device(device);
if (!net_device) {
dev_err(&device->device, "unable to get net device..."
- "device being destroyed?");
+ "device being destroyed?\n");
return;
}
@@ -652,7 +652,7 @@ static void netvsc_receive(struct hv_device *device,
net_device = get_inbound_net_device(device);
if (!net_device) {
dev_err(&device->device, "unable to get net device..."
- "device being destroyed?");
+ "device being destroyed?\n");
return;
}
@@ -661,7 +661,7 @@ static void netvsc_receive(struct hv_device *device,
* packet
*/
if (packet->type != VM_PKT_DATA_USING_XFER_PAGES) {
- dev_err(&device->device, "Unknown packet type received -
%d",
+ dev_err(&device->device, "Unknown packet type received -
%d\n",
packet->type);
put_net_device(device);
return;
@@ -674,7 +674,7 @@ static void netvsc_receive(struct hv_device *device,
if (nvsp_packet->hdr.msg_type ! NVSP_MSG1_TYPE_SEND_RNDIS_PKT) {
dev_err(&device->device, "Unknown nvsp packet type
received-"
- " %d", nvsp_packet->hdr.msg_type);
+ " %d\n", nvsp_packet->hdr.msg_type);
put_net_device(device);
return;
}
@@ -683,7 +683,7 @@ static void netvsc_receive(struct hv_device *device,
if (vmxferpage_packet->xfer_pageset_id != NETVSC_RECEIVE_BUFFER_ID) {
dev_err(&device->device, "Invalid xfer page set id - "
- "expecting %x got %x", NETVSC_RECEIVE_BUFFER_ID,
+ "expecting %x got %x\n", NETVSC_RECEIVE_BUFFER_ID,
vmxferpage_packet->xfer_pageset_id);
put_net_device(device);
return;
@@ -710,7 +710,7 @@ static void netvsc_receive(struct hv_device *device,
*/
if (count < 2) {
dev_err(&device->device, "Got only %d netvsc pkt...needed "
- "%d pkts. Dropping this xfer page packet completely!",
+ "%d pkts. Dropping this xfer page packet completely!\n",
count, vmxferpage_packet->range_cnt + 1);
/* Return it to the freelist */
@@ -738,7 +738,7 @@ static void netvsc_receive(struct hv_device *device,
if (xferpage_packet->count != vmxferpage_packet->range_cnt) {
dev_err(&device->device, "Needed %d netvsc pkts to satisy "
- "this xfer page...got %d",
+ "this xfer page...got %d\n",
vmxferpage_packet->range_cnt, xferpage_packet->count);
}
@@ -837,7 +837,7 @@ static void netvsc_channel_cb(void *context)
net_device = get_inbound_net_device(device);
if (!net_device) {
dev_err(&device->device, "net device (%p) shutting down..."
- "ignoring inbound packets", net_device);
+ "ignoring inbound packets\n", net_device);
goto out;
}
@@ -888,7 +888,7 @@ static void netvsc_channel_cb(void *context)
/* Try again next time around */
dev_err(&device->device,
"unable to allocate buffer of size "
- "(%d)!!", bytes_recvd);
+ "(%d)!!\n", bytes_recvd);
break;
}
@@ -945,18 +945,18 @@ int netvsc_device_add(struct hv_device *device, void
*additional_info)
netvsc_channel_cb, device);
if (ret != 0) {
- dev_err(&device->device, "unable to open channel: %d", ret);
+ dev_err(&device->device, "unable to open channel: %d\n",
ret);
goto cleanup;
}
/* Channel is opened */
- pr_info("hv_netvsc channel opened successfully");
+ pr_info("hv_netvsc channel opened successfully\n");
/* Connect with the NetVsp */
ret = netvsc_connect_vsp(device);
if (ret != 0) {
dev_err(&device->device,
- "unable to connect to NetVSP - %d", ret);
+ "unable to connect to NetVSP - %d\n", ret);
goto close;
}
diff --git a/drivers/staging/hv/netvsc_drv.c b/drivers/staging/hv/netvsc_drv.c
index 1325de4..7b9d9ca 100644
--- a/drivers/staging/hv/netvsc_drv.c
+++ b/drivers/staging/hv/netvsc_drv.c
@@ -446,7 +446,7 @@ static int __init netvsc_drv_init(void)
struct hv_driver *drv = &netvsc_drv;
int ret;
- pr_info("initializing....");
+ pr_info("initializing....\n");
drv->driver.name = driver_name;
--
1.6.3.2
Haiyang Zhang
2011-Jul-21 17:14 UTC
[PATCH 3/9] staging: hv: convert dev_<loglevel> to netdev_<loglevel> in netvsc
Signed-off-by: Haiyang Zhang <haiyangz at microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys at microsoft.com>
---
drivers/staging/hv/netvsc.c | 68 +++++++++++++++++++++----------------
drivers/staging/hv/rndis_filter.c | 17 +++++----
2 files changed, 49 insertions(+), 36 deletions(-)
diff --git a/drivers/staging/hv/netvsc.c b/drivers/staging/hv/netvsc.c
index 0eda326..159c490 100644
--- a/drivers/staging/hv/netvsc.c
+++ b/drivers/staging/hv/netvsc.c
@@ -28,6 +28,7 @@
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/slab.h>
+#include <linux/netdevice.h>
#include "hyperv_net.h"
@@ -111,6 +112,7 @@ static int netvsc_destroy_recv_buf(struct netvsc_device
*net_device)
{
struct nvsp_message *revoke_packet;
int ret = 0;
+ struct net_device *ndev = dev_get_drvdata(&net_device->dev->device);
/*
* If we got a section count, it means we received a
@@ -138,7 +140,7 @@ static int netvsc_destroy_recv_buf(struct netvsc_device
*net_device)
* have a leak rather than continue and a bugchk
*/
if (ret != 0) {
- dev_err(&net_device->dev->device, "unable to send "
+ netdev_err(ndev, "unable to send "
"revoke receive buffer to netvsp\n");
return ret;
}
@@ -153,7 +155,7 @@ static int netvsc_destroy_recv_buf(struct netvsc_device
*net_device)
* rather than continue and a bugchk
*/
if (ret != 0) {
- dev_err(&net_device->dev->device,
+ netdev_err(ndev,
"unable to teardown receive buffer's gpadl\n");
return -ret;
}
@@ -182,10 +184,11 @@ static int netvsc_init_recv_buf(struct hv_device *device)
int t;
struct netvsc_device *net_device;
struct nvsp_message *init_packet;
+ struct net_device *ndev = dev_get_drvdata(&device->device);
net_device = get_outbound_net_device(device);
if (!net_device) {
- dev_err(&device->device, "unable to get net device..."
+ netdev_err(ndev, "unable to get net device..."
"device being destroyed?\n");
return -ENODEV;
}
@@ -194,7 +197,7 @@ static int netvsc_init_recv_buf(struct hv_device *device)
(void *)__get_free_pages(GFP_KERNEL|__GFP_ZERO,
get_order(net_device->recv_buf_size));
if (!net_device->recv_buf) {
- dev_err(&device->device, "unable to allocate receive "
+ netdev_err(ndev, "unable to allocate receive "
"buffer of size %d\n", net_device->recv_buf_size);
ret = -ENOMEM;
goto cleanup;
@@ -209,7 +212,7 @@ static int netvsc_init_recv_buf(struct hv_device *device)
net_device->recv_buf_size,
&net_device->recv_buf_gpadl_handle);
if (ret != 0) {
- dev_err(&device->device,
+ netdev_err(ndev,
"unable to establish receive buffer's gpadl\n");
goto cleanup;
}
@@ -233,7 +236,7 @@ static int netvsc_init_recv_buf(struct hv_device *device)
VM_PKT_DATA_INBAND,
VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
if (ret != 0) {
- dev_err(&device->device,
+ netdev_err(ndev,
"unable to send receive buffer's gpadl to netvsp\n");
goto cleanup;
}
@@ -245,7 +248,7 @@ static int netvsc_init_recv_buf(struct hv_device *device)
/* Check the response */
if (init_packet->msg.v1_msg.
send_recv_buf_complete.status != NVSP_STAT_SUCCESS) {
- dev_err(&device->device, "Unable to complete receive buffer
"
+ netdev_err(ndev, "Unable to complete receive buffer "
"initialzation with NetVsp - status %d\n",
init_packet->msg.v1_msg.
send_recv_buf_complete.status);
@@ -298,10 +301,11 @@ static int netvsc_connect_vsp(struct hv_device *device)
struct netvsc_device *net_device;
struct nvsp_message *init_packet;
int ndis_version;
+ struct net_device *ndev = dev_get_drvdata(&device->device);
net_device = get_outbound_net_device(device);
if (!net_device) {
- dev_err(&device->device, "unable to get net device..."
+ netdev_err(ndev, "unable to get net device..."
"device being destroyed?\n");
return -ENODEV;
}
@@ -400,7 +404,7 @@ int netvsc_device_remove(struct hv_device *device)
/* Wait for all send completions */
while (atomic_read(&net_device->num_outstanding_sends)) {
- dev_err(&device->device,
+ dev_info(&device->device,
"waiting for %d requests to complete...\n",
atomic_read(&net_device->num_outstanding_sends));
udelay(100);
@@ -447,10 +451,11 @@ static void netvsc_send_completion(struct hv_device
*device,
struct netvsc_device *net_device;
struct nvsp_message *nvsp_packet;
struct hv_netvsc_packet *nvsc_packet;
+ struct net_device *ndev = dev_get_drvdata(&device->device);
net_device = get_inbound_net_device(device);
if (!net_device) {
- dev_err(&device->device, "unable to get net device..."
+ netdev_err(ndev, "unable to get net device..."
"device being destroyed?\n");
return;
}
@@ -479,7 +484,7 @@ static void netvsc_send_completion(struct hv_device *device,
atomic_dec(&net_device->num_outstanding_sends);
} else {
- dev_err(&device->device, "Unknown send completion packet type-
"
+ netdev_err(ndev, "Unknown send completion packet type- "
"%d received!!\n", nvsp_packet->hdr.msg_type);
}
@@ -491,12 +496,12 @@ int netvsc_send(struct hv_device *device,
{
struct netvsc_device *net_device;
int ret = 0;
-
struct nvsp_message sendMessage;
+ struct net_device *ndev = dev_get_drvdata(&device->device);
net_device = get_outbound_net_device(device);
if (!net_device) {
- dev_err(&device->device, "net device (%p) shutting down..."
+ netdev_err(ndev, "net device (%p) shutting down..."
"ignoring outbound packets\n", net_device);
return -ENODEV;
}
@@ -532,7 +537,7 @@ int netvsc_send(struct hv_device *device,
}
if (ret != 0)
- dev_err(&device->device, "Unable to send packet %p ret
%d\n",
+ netdev_err(ndev, "Unable to send packet %p ret %d\n",
packet, ret);
atomic_inc(&net_device->num_outstanding_sends);
@@ -546,6 +551,7 @@ static void netvsc_send_recv_completion(struct hv_device
*device,
struct nvsp_message recvcompMessage;
int retries = 0;
int ret;
+ struct net_device *ndev = dev_get_drvdata(&device->device);
recvcompMessage.hdr.msg_type NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE;
@@ -565,19 +571,19 @@ retry_send_cmplt:
} else if (ret == -EAGAIN) {
/* no more room...wait a bit and attempt to retry 3 times */
retries++;
- dev_err(&device->device, "unable to send receive completion
pkt"
+ netdev_err(ndev, "unable to send receive completion pkt"
" (tid %llx)...retrying %d\n", transaction_id, retries);
if (retries < 4) {
udelay(100);
goto retry_send_cmplt;
} else {
- dev_err(&device->device, "unable to send receive "
+ netdev_err(ndev, "unable to send receive "
"completion pkt (tid %llx)...give up retrying\n",
transaction_id);
}
} else {
- dev_err(&device->device, "unable to send receive "
+ netdev_err(ndev, "unable to send receive "
"completion pkt - %llx\n", transaction_id);
}
}
@@ -591,6 +597,7 @@ static void netvsc_receive_completion(void *context)
u64 transaction_id = 0;
bool fsend_receive_comp = false;
unsigned long flags;
+ struct net_device *ndev = dev_get_drvdata(&device->device);
/*
* Even though it seems logical to do a GetOutboundNetDevice() here to
@@ -599,7 +606,7 @@ static void netvsc_receive_completion(void *context)
*/
net_device = get_inbound_net_device(device);
if (!net_device) {
- dev_err(&device->device, "unable to get net device..."
+ netdev_err(ndev, "unable to get net device..."
"device being destroyed?\n");
return;
}
@@ -646,12 +653,13 @@ static void netvsc_receive(struct hv_device *device,
int i, j;
int count = 0, bytes_remain = 0;
unsigned long flags;
+ struct net_device *ndev = dev_get_drvdata(&device->device);
LIST_HEAD(listHead);
net_device = get_inbound_net_device(device);
if (!net_device) {
- dev_err(&device->device, "unable to get net device..."
+ netdev_err(ndev, "unable to get net device..."
"device being destroyed?\n");
return;
}
@@ -661,7 +669,7 @@ static void netvsc_receive(struct hv_device *device,
* packet
*/
if (packet->type != VM_PKT_DATA_USING_XFER_PAGES) {
- dev_err(&device->device, "Unknown packet type received -
%d\n",
+ netdev_err(ndev, "Unknown packet type received - %d\n",
packet->type);
put_net_device(device);
return;
@@ -673,7 +681,7 @@ static void netvsc_receive(struct hv_device *device,
/* Make sure this is a valid nvsp packet */
if (nvsp_packet->hdr.msg_type ! NVSP_MSG1_TYPE_SEND_RNDIS_PKT) {
- dev_err(&device->device, "Unknown nvsp packet type
received-"
+ netdev_err(ndev, "Unknown nvsp packet type received-"
" %d\n", nvsp_packet->hdr.msg_type);
put_net_device(device);
return;
@@ -682,7 +690,7 @@ static void netvsc_receive(struct hv_device *device,
vmxferpage_packet = (struct vmtransfer_page_packet_header *)packet;
if (vmxferpage_packet->xfer_pageset_id != NETVSC_RECEIVE_BUFFER_ID) {
- dev_err(&device->device, "Invalid xfer page set id - "
+ netdev_err(ndev, "Invalid xfer page set id - "
"expecting %x got %x\n", NETVSC_RECEIVE_BUFFER_ID,
vmxferpage_packet->xfer_pageset_id);
put_net_device(device);
@@ -709,7 +717,7 @@ static void netvsc_receive(struct hv_device *device,
* some of the xfer page packet ranges...
*/
if (count < 2) {
- dev_err(&device->device, "Got only %d netvsc pkt...needed "
+ netdev_err(ndev, "Got only %d netvsc pkt...needed "
"%d pkts. Dropping this xfer page packet completely!\n",
count, vmxferpage_packet->range_cnt + 1);
@@ -737,7 +745,7 @@ static void netvsc_receive(struct hv_device *device,
xferpage_packet->count = count - 1;
if (xferpage_packet->count != vmxferpage_packet->range_cnt) {
- dev_err(&device->device, "Needed %d netvsc pkts to satisy "
+ netdev_err(ndev, "Needed %d netvsc pkts to satisy "
"this xfer page...got %d\n",
vmxferpage_packet->range_cnt, xferpage_packet->count);
}
@@ -827,6 +835,7 @@ static void netvsc_channel_cb(void *context)
struct vmpacket_descriptor *desc;
unsigned char *buffer;
int bufferlen = NETVSC_PACKET_SIZE;
+ struct net_device *ndev = dev_get_drvdata(&device->device);
packet = kzalloc(NETVSC_PACKET_SIZE * sizeof(unsigned char),
GFP_ATOMIC);
@@ -836,7 +845,7 @@ static void netvsc_channel_cb(void *context)
net_device = get_inbound_net_device(device);
if (!net_device) {
- dev_err(&device->device, "net device (%p) shutting down..."
+ netdev_err(ndev, "net device (%p) shutting down..."
"ignoring inbound packets\n", net_device);
goto out;
}
@@ -857,7 +866,7 @@ static void netvsc_channel_cb(void *context)
break;
default:
- dev_err(&device->device,
+ netdev_err(ndev,
"unhandled packet type %d, "
"tid %llx len %d\n",
desc->type, request_id,
@@ -886,7 +895,7 @@ static void netvsc_channel_cb(void *context)
buffer = kmalloc(bytes_recvd, GFP_ATOMIC);
if (buffer == NULL) {
/* Try again next time around */
- dev_err(&device->device,
+ netdev_err(ndev,
"unable to allocate buffer of size "
"(%d)!!\n", bytes_recvd);
break;
@@ -914,6 +923,7 @@ int netvsc_device_add(struct hv_device *device, void
*additional_info)
((struct netvsc_device_info *)additional_info)->ring_size;
struct netvsc_device *net_device;
struct hv_netvsc_packet *packet, *pos;
+ struct net_device *ndev = dev_get_drvdata(&device->device);
net_device = alloc_net_device(device);
if (!net_device) {
@@ -945,7 +955,7 @@ int netvsc_device_add(struct hv_device *device, void
*additional_info)
netvsc_channel_cb, device);
if (ret != 0) {
- dev_err(&device->device, "unable to open channel: %d\n",
ret);
+ netdev_err(ndev, "unable to open channel: %d\n", ret);
goto cleanup;
}
@@ -955,7 +965,7 @@ int netvsc_device_add(struct hv_device *device, void
*additional_info)
/* Connect with the NetVsp */
ret = netvsc_connect_vsp(device);
if (ret != 0) {
- dev_err(&device->device,
+ netdev_err(ndev,
"unable to connect to NetVSP - %d\n", ret);
goto close;
}
diff --git a/drivers/staging/hv/rndis_filter.c
b/drivers/staging/hv/rndis_filter.c
index 8416bf2..20e673d 100644
--- a/drivers/staging/hv/rndis_filter.c
+++ b/drivers/staging/hv/rndis_filter.c
@@ -249,6 +249,7 @@ static void rndis_filter_receive_response(struct
rndis_device *dev,
struct rndis_request *request = NULL;
bool found = false;
unsigned long flags;
+ struct net_device *ndev =
dev_get_drvdata(&dev->net_dev->dev->device);
spin_lock_irqsave(&dev->request_lock, flags);
list_for_each_entry(request, &dev->req_list, list_ent) {
@@ -269,7 +270,7 @@ static void rndis_filter_receive_response(struct
rndis_device *dev,
memcpy(&request->response_msg, resp,
resp->msg_len);
} else {
- dev_err(&dev->net_dev->dev->device,
+ netdev_err(ndev,
"rndis response buffer overflow "
"detected (size %u max %zu)\n",
resp->msg_len,
@@ -289,7 +290,7 @@ static void rndis_filter_receive_response(struct
rndis_device *dev,
complete(&request->wait_event);
} else {
- dev_err(&dev->net_dev->dev->device,
+ netdev_err(ndev,
"no rndis request found for this response "
"(id 0x%x res type 0x%x)\n",
resp->msg.init_complete.req_id,
@@ -349,20 +350,21 @@ int rndis_filter_receive(struct hv_device *dev,
struct rndis_device *rndis_dev;
struct rndis_message rndis_msg;
struct rndis_message *rndis_hdr;
+ struct net_device *ndev = dev_get_drvdata(&dev->device);
if (!net_dev)
return -EINVAL;
/* Make sure the rndis device state is initialized */
if (!net_dev->extension) {
- dev_err(&dev->device, "got rndis message but no rndis device -
"
+ netdev_err(ndev, "got rndis message but no rndis device - "
"dropping this message!\n");
return -ENODEV;
}
rndis_dev = (struct rndis_device *)net_dev->extension;
if (rndis_dev->state == RNDIS_DEV_UNINITIALIZED) {
- dev_err(&dev->device, "got rndis message but rndis device "
+ netdev_err(ndev, "got rndis message but rndis device "
"uninitialized...dropping this message!\n");
return -ENODEV;
}
@@ -376,7 +378,7 @@ int rndis_filter_receive(struct hv_device *dev,
/* Make sure we got a valid rndis message */
if ((rndis_hdr->ndis_msg_type != REMOTE_NDIS_PACKET_MSG) &&
(rndis_hdr->msg_len > sizeof(struct rndis_message))) {
- dev_err(&dev->device, "incoming rndis message buffer overflow
"
+ netdev_err(ndev, "incoming rndis message buffer overflow "
"detected (got %u, max %zu)..marking it an error!\n",
rndis_hdr->msg_len,
sizeof(struct rndis_message));
@@ -409,7 +411,7 @@ int rndis_filter_receive(struct hv_device *dev,
rndis_filter_receive_indicate_status(rndis_dev, &rndis_msg);
break;
default:
- dev_err(&dev->device,
+ netdev_err(ndev,
"unhandled rndis message (type %u len %u)\n",
rndis_msg.ndis_msg_type,
rndis_msg.msg_len);
@@ -505,6 +507,7 @@ static int rndis_filter_set_packet_filter(struct
rndis_device *dev,
struct rndis_set_complete *set_complete;
u32 status;
int ret, t;
+ struct net_device *ndev =
dev_get_drvdata(&dev->net_dev->dev->device);
request = get_rndis_request(dev, REMOTE_NDIS_SET_MSG,
RNDIS_MESSAGE_SIZE(struct rndis_set_request) +
@@ -530,7 +533,7 @@ static int rndis_filter_set_packet_filter(struct
rndis_device *dev,
t = wait_for_completion_timeout(&request->wait_event, 5*HZ);
if (t == 0) {
- dev_err(&dev->net_dev->dev->device,
+ netdev_err(ndev,
"timeout before we got a set response...\n");
/*
* We can't deallocate the request since we may still receive a
--
1.6.3.2
Haiyang Zhang
2011-Jul-21 17:14 UTC
[PATCH 4/9] staging: hv: fix a kernel warning in netvsc_linkstatus_callback()
netif_notify_peers() caused a kernel warning in netvsc_linkstatus_callback(),
because netvsc_linkstatus_callback() is within IRQ context. So we move
the first call to netif_notify_peers() into queued work as well, but with
zero delay.
In addition to "staging-next", this should also be back-ported to
stable
kernels 2.6.32 and later.
Signed-off-by: Haiyang Zhang <haiyangz at microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys at microsoft.com>
Cc: stable <stable at kernel.org>
---
drivers/staging/hv/netvsc_drv.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/staging/hv/netvsc_drv.c b/drivers/staging/hv/netvsc_drv.c
index 7b9d9ca..c8e2f24 100644
--- a/drivers/staging/hv/netvsc_drv.c
+++ b/drivers/staging/hv/netvsc_drv.c
@@ -216,8 +216,8 @@ void netvsc_linkstatus_callback(struct hv_device
*device_obj,
if (status == 1) {
netif_carrier_on(net);
netif_wake_queue(net);
- netif_notify_peers(net);
ndev_ctx = netdev_priv(net);
+ schedule_delayed_work(&ndev_ctx->dwork, 0);
schedule_delayed_work(&ndev_ctx->dwork, msecs_to_jiffies(20));
} else {
netif_carrier_off(net);
--
1.6.3.2
Haiyang Zhang
2011-Jul-21 17:14 UTC
[PATCH 5/9] staging: hv: re-order the code in netvsc_probe()
Re-order the code in netvsc_probe() to prevent a guest crash caused by
packets possibly received from NetVSP before call to register_netdev().
Signed-off-by: Haiyang Zhang <haiyangz at microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys at microsoft.com>
---
drivers/staging/hv/netvsc_drv.c | 32 +++++++++++++++++---------------
1 files changed, 17 insertions(+), 15 deletions(-)
diff --git a/drivers/staging/hv/netvsc_drv.c b/drivers/staging/hv/netvsc_drv.c
index c8e2f24..816e382 100644
--- a/drivers/staging/hv/netvsc_drv.c
+++ b/drivers/staging/hv/netvsc_drv.c
@@ -350,19 +350,6 @@ static int netvsc_probe(struct hv_device *dev)
dev_set_drvdata(&dev->device, net);
INIT_DELAYED_WORK(&net_device_ctx->dwork, netvsc_send_garp);
- /* Notify the netvsc driver of the new device */
- device_info.ring_size = ring_size;
- ret = rndis_filter_device_add(dev, &device_info);
- if (ret != 0) {
- free_netdev(net);
- dev_set_drvdata(&dev->device, NULL);
- return ret;
- }
-
- netif_carrier_on(net);
-
- memcpy(net->dev_addr, device_info.mac_adr, ETH_ALEN);
-
net->netdev_ops = &device_ops;
/* TODO: Add GSO and Checksum offload */
@@ -374,11 +361,26 @@ static int netvsc_probe(struct hv_device *dev)
ret = register_netdev(net);
if (ret != 0) {
- /* Remove the device and release the resource */
- rndis_filter_device_remove(dev);
+ pr_err("Unable to register netdev.\n");
free_netdev(net);
+ goto out;
}
+ /* Notify the netvsc driver of the new device */
+ device_info.ring_size = ring_size;
+ ret = rndis_filter_device_add(dev, &device_info);
+ if (ret != 0) {
+ netdev_err(net, "unable to add netvsc device (ret %d)\n", ret);
+ unregister_netdev(net);
+ free_netdev(net);
+ dev_set_drvdata(&dev->device, NULL);
+ return ret;
+ }
+ memcpy(net->dev_addr, device_info.mac_adr, ETH_ALEN);
+
+ netif_carrier_on(net);
+
+out:
return ret;
}
--
1.6.3.2
Haiyang Zhang
2011-Jul-21 17:14 UTC
[PATCH 6/9] staging: hv: fix counting of #outstanding-sends in failed sends
If the packet failed to be sent, we shouldn't count it as the number of outstanding sends. Signed-off-by: Haiyang Zhang <haiyangz at microsoft.com> Signed-off-by: K. Y. Srinivasan <kys at microsoft.com> --- drivers/staging/hv/netvsc.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/staging/hv/netvsc.c b/drivers/staging/hv/netvsc.c index 159c490..2b33e13 100644 --- a/drivers/staging/hv/netvsc.c +++ b/drivers/staging/hv/netvsc.c @@ -539,8 +539,9 @@ int netvsc_send(struct hv_device *device, if (ret != 0) netdev_err(ndev, "Unable to send packet %p ret %d\n", packet, ret); + else + atomic_inc(&net_device->num_outstanding_sends); - atomic_inc(&net_device->num_outstanding_sends); put_net_device(device); return ret; } -- 1.6.3.2
Haiyang Zhang
2011-Jul-21 17:14 UTC
[PATCH 7/9] staging: hv: fix counting of available buffer slots when send fails
Because the number of available buffer slots doesn't decrease for failed
sends, we should not call netvsc_xmit_completion(), which increase the
count of available slots. In this failed case, just free the memory is
enough.
Signed-off-by: Haiyang Zhang <haiyangz at microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys at microsoft.com>
---
drivers/staging/hv/netvsc_drv.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/staging/hv/netvsc_drv.c b/drivers/staging/hv/netvsc_drv.c
index 816e382..a15165e 100644
--- a/drivers/staging/hv/netvsc_drv.c
+++ b/drivers/staging/hv/netvsc_drv.c
@@ -192,7 +192,8 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct
net_device *net)
} else {
/* we are shutting down or bus overloaded, just drop packet */
net->stats.tx_dropped++;
- netvsc_xmit_completion(packet);
+ kfree(packet);
+ dev_kfree_skb_any(skb);
}
return NETDEV_TX_OK;
--
1.6.3.2
Haiyang Zhang
2011-Jul-21 17:14 UTC
[PATCH 8/9] staging: hv: fix the return status of netvsc_start_xmit()
Fix the return status, so the upper layer will retry if transmission
fails.
Signed-off-by: Haiyang Zhang <haiyangz at microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys at microsoft.com>
---
drivers/staging/hv/netvsc_drv.c | 6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/hv/netvsc_drv.c b/drivers/staging/hv/netvsc_drv.c
index a15165e..818ddf8 100644
--- a/drivers/staging/hv/netvsc_drv.c
+++ b/drivers/staging/hv/netvsc_drv.c
@@ -142,12 +142,12 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct
net_device *net)
(num_pages * sizeof(struct hv_page_buffer)) +
sizeof(struct rndis_filter_packet), GFP_ATOMIC);
if (!packet) {
- /* out of memory, silently drop packet */
+ /* out of memory, drop packet */
netdev_err(net, "unable to allocate hv_netvsc_packet\n");
dev_kfree_skb(skb);
net->stats.tx_dropped++;
- return NETDEV_TX_OK;
+ return NETDEV_TX_BUSY;
}
packet->extension = (void *)(unsigned long)packet +
@@ -196,7 +196,7 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct
net_device *net)
dev_kfree_skb_any(skb);
}
- return NETDEV_TX_OK;
+ return ret ? NETDEV_TX_BUSY : NETDEV_TX_OK;
}
/*
--
1.6.3.2
Haiyang Zhang
2011-Jul-21 17:14 UTC
[PATCH 9/9] staging: hv: fix the page buffer when rndis data go across page boundary
In rndis_filter_receive_data(), we need to drop the 0th page and move the
rest of pages forward if the rndis data go across page boundary, otherwise
the page offset will overflow.
Signed-off-by: Haiyang Zhang <haiyangz at microsoft.com>
Signed-off-by: K. Y. Srinivasan <kys at microsoft.com>
---
drivers/staging/hv/rndis_filter.c | 10 ++++++++++
1 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/drivers/staging/hv/rndis_filter.c
b/drivers/staging/hv/rndis_filter.c
index 20e673d..b325345 100644
--- a/drivers/staging/hv/rndis_filter.c
+++ b/drivers/staging/hv/rndis_filter.c
@@ -323,6 +323,7 @@ static void rndis_filter_receive_data(struct rndis_device
*dev,
{
struct rndis_packet *rndis_pkt;
u32 data_offset;
+ int i;
rndis_pkt = &msg->msg.pkt;
@@ -338,6 +339,15 @@ static void rndis_filter_receive_data(struct rndis_device
*dev,
pkt->page_buf[0].offset += data_offset;
pkt->page_buf[0].len -= data_offset;
+ /* Drop the 0th page, if rndis data go beyond page boundary */
+ if (pkt->page_buf[0].offset >= PAGE_SIZE) {
+ pkt->page_buf[1].offset = pkt->page_buf[0].offset - PAGE_SIZE;
+ pkt->page_buf[1].len -= pkt->page_buf[1].offset;
+ pkt->page_buf_cnt--;
+ for (i = 0; i < pkt->page_buf_cnt; i++)
+ pkt->page_buf[i] = pkt->page_buf[i+1];
+ }
+
pkt->is_data_pkt = true;
netvsc_recv_callback(dev->net_dev->dev, pkt);
--
1.6.3.2
Joe Perches
2011-Jul-22 01:35 UTC
[PATCH 2/9] staging: hv: add newline to log messages in netvsc
On Thu, 2011-07-21 at 10:14 -0700, Haiyang Zhang wrote:> Signed-off-by: Haiyang Zhang <haiyangz at microsoft.com> > Signed-off-by: K. Y. Srinivasan <kys at microsoft.com>Just noticing some trivial typos...> diff --git a/drivers/staging/hv/netvsc.c b/drivers/staging/hv/netvsc.c[]> @@ -246,7 +246,7 @@ static int netvsc_init_recv_buf(struct hv_device *device) > if (init_packet->msg.v1_msg. > send_recv_buf_complete.status != NVSP_STAT_SUCCESS) { > dev_err(&device->device, "Unable to complete receive buffer " > - "initialzation with NetVsp - status %d", > + "initialzation with NetVsp - status %d\n",initialization []> @@ -738,7 +738,7 @@ static void netvsc_receive(struct hv_device *device, > > if (xferpage_packet->count != vmxferpage_packet->range_cnt) { > dev_err(&device->device, "Needed %d netvsc pkts to satisy " > - "this xfer page...got %d", > + "this xfer page...got %d\n",satisfy
Haiyang Zhang
2011-Jul-22 14:22 UTC
[PATCH 2/9] staging: hv: add newline to log messages in netvsc
> -----Original Message----- > From: Joe Perches [mailto:joe at perches.com] > Sent: Thursday, July 21, 2011 9:36 PM > Just noticing some trivial typos... > > > diff --git a/drivers/staging/hv/netvsc.c > b/drivers/staging/hv/netvsc.c > [] > > @@ -246,7 +246,7 @@ static int netvsc_init_recv_buf(struct hv_device > *device) > > if (init_packet->msg.v1_msg. > > send_recv_buf_complete.status != NVSP_STAT_SUCCESS) { > > dev_err(&device->device, "Unable to complete receive buffer > " > > - "initialzation with NetVsp - status %d", > > + "initialzation with NetVsp - status %d\n", > > initialization > > [] > > @@ -738,7 +738,7 @@ static void netvsc_receive(struct hv_device > *device, > > > > if (xferpage_packet->count != vmxferpage_packet->range_cnt) { > > dev_err(&device->device, "Needed %d netvsc pkts to satisy " > > - "this xfer page...got %d", > > + "this xfer page...got %d\n", > > satisfyGood catch! I will make a new patch to correct them. Thanks, - Haiyang
Possibly Parallel Threads
- [PATCH 0/9] netvsc bug fixes and cleanups
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- [PATCH 00/10] netvsc bug fixes and cleanups
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- [PATCH 1/5] staging: hv: fix some white spaces in netvsc driver