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path: root/drivers/net/hyperv/netvsc_drv.c
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2013-08-02Drivers: hv: remove HV_DRV_VERSIONOlaf Hering1-2/+0
Remove HV_DRV_VERSION, it has no meaning for upstream drivers. Initially it was supposed to show the "Linux Integration Services" version, now it is not in sync anymore with the out-of-tree drivers available from the MSFT website. The only place where a version string is still required is the KVP command "IntegrationServicesVersion" which is handled by tools/hv/hv_kvp_daemon.c. To satisfy such KVP request from the host pass the current string to the daemon during KVP userland registration. Signed-off-by: Olaf Hering <[email protected]> Acked-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-07-16hyperv: Fix the NETIF_F_SG flag setting in netvscHaiyang Zhang1-2/+2
SG mode is not currently supported by netvsc, so remove this flag for now. Otherwise, it will be unconditionally enabled by commit ec5f0615642 "Kill link between CSUM and SG features" Previously, the SG feature is disabled because CSUM is not set here. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-06-17Fix the VLAN_TAG_PRESENT in netvsc_recv_callback()Haiyang Zhang1-1/+3
We should call __vlan_hwaccel_put_tag() only if the packet comes from vlan, otherwise VLAN_TAG_PRESENT will always be added. Reported-by: Olaf Hering <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-05-31hyperv: Fix vlan_proto setting in netvsc_recv_callback()Haiyang Zhang1-1/+2
Since the recent addition of 8021AD, we need to set the new field vlan_proto in sk_buff. Otherwise, it will trigger BUG() call in vlan_proto_idx(). This patch fixes the problem. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-04-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-2/+0
Conflicts: drivers/net/ethernet/emulex/benet/be_main.c drivers/net/ethernet/intel/igb/igb_main.c drivers/net/wireless/brcm80211/brcmsmac/mac80211_if.c include/net/scm.h net/batman-adv/routing.c net/ipv4/tcp_input.c The e{uid,gid} --> {uid,gid} credentials fix conflicted with the cleanup in net-next to now pass cred structs around. The be2net driver had a bug fix in 'net' that overlapped with the VLAN interface changes by Patrick McHardy in net-next. An IGB conflict existed because in 'net' the build_skb() support was reverted, and in 'net-next' there was a comment style fix within that code. Several batman-adv conflicts were resolved by making sure that all calls to batadv_is_my_mac() are changed to have a new bat_priv first argument. Eric Dumazet's TS ECR fix in TCP in 'net' conflicted with the F-RTO rewrite in 'net-next', mostly overlapping changes. Thanks to Stephen Rothwell and Antonio Quartulli for help with several of these merge resolutions. Signed-off-by: David S. Miller <[email protected]>
2013-04-19net: vlan: rename NETIF_F_HW_VLAN_* feature flags to NETIF_F_HW_VLAN_CTAG_*Patrick McHardy1-1/+1
Rename the hardware VLAN acceleration features to include "CTAG" to indicate that they only support CTAGs. Follow up patches will introduce 802.1ad server provider tagging (STAGs) and require the distinction for hardware not supporting acclerating both. Signed-off-by: Patrick McHardy <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-04-08hyperv: Fix a kernel warning from netvsc_linkstatus_callback()Haiyang Zhang1-2/+0
The warning about local_bh_enable inside IRQ happens when disconnecting a virtual NIC. The reason for the warning is -- netif_tx_disable() is called when the NIC is disconnected. And it's called within irq context. netif_tx_disable() calls local_bh_enable() which displays warning if in irq. The fix is to remove the unnecessary netif_tx_disable & wake_queue() in the netvsc_linkstatus_callback(). Reported-by: Richard Genoud <[email protected]> Tested-by: Long Li <[email protected]> Tested-by: Richard Genoud <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-02-21Merge tag 'char-misc-3.9-rc1' of ↵Linus Torvalds1-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver patches from Greg Kroah-Hartman: "Here's the big char/misc driver patches for 3.9-rc1. Nothing major here, just lots of different driver updates (mei, hyperv, ipack, extcon, vmci, etc.). All of these have been in the linux-next tree for a while." * tag 'char-misc-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (209 commits) w1: w1_therm: Add force-pullup option for "broken" sensors w1: ds2482: Added 1-Wire pull-up support to the driver vme: add missing put_device() after device_register() fails extcon: max8997: Use workqueue to check cable state after completing boot of platform extcon: max8997: Set default UART/USB path on probe extcon: max8997: Consolidate duplicate code for checking ADC/CHG cable type extcon: max8997: Set default of ADC debounce time during initialization extcon: max8997: Remove duplicate code related to set H/W line path extcon: max8997: Move defined constant to header file extcon: max77693: Make max77693_extcon_cable static extcon: max8997: Remove unreachable code extcon: max8997: Make max8997_extcon_cable static extcon: max77693: Remove unnecessary goto statement to improve readability extcon: max77693: Convert to devm_input_allocate_device() extcon: gpio: Rename filename of extcon-gpio.c according to kernel naming style CREDITS: update email and address of Harald Hoyer extcon: arizona: Use MICDET for final microphone identification extcon: arizona: Always take the first HPDET reading as the final one extcon: arizona: Clear _trig_sts bits after jack detection extcon: arizona: Don't HPDET magic when headphones are enabled ...
2013-01-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-1/+1
Bring in the 'net' tree so that we can get some ipv4/ipv6 bug fixes that some net-next work will build upon. Signed-off-by: David S. Miller <[email protected]>
2013-01-25Drivers: net: hyperv: Use the consolidated GUID definitionK. Y. Srinivasan1-2/+1
Use the consolidated GUID definitions in the Hyper-V network driver. Signed-off-by: K. Y. Srinivasan <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2013-01-19net/hyperv: fix wrong length of mac addressJianjun Kong1-1/+1
This patch fixed wrong mac length, it should be ETH_ALEN, also replaced the hardcode 6 in hyperv_net.h Signed-off-by: Amos Kong <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2013-01-06ethtool: fix drvinfo strings set in driversJiri Pirko1-3/+3
Use strlcpy where possible to ensure the string is \0 terminated. Use always sizeof(string) instead of 32, ETHTOOL_BUSINFO_LEN and custom defines. Use snprintf instead of sprint. Remove unnecessary inits of ->fw_version Remove unnecessary inits of drvinfo struct. Signed-off-by: Jiri Pirko <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-10-02hyperv: Report actual status in receive completion packetHaiyang Zhang1-0/+2
The existing code always reports NVSP_STAT_SUCCESS. This patch adds the mechanism to report failure when it happens. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-08-14net: move and rename netif_notify_peers()Amerigo Wang1-1/+1
I believe net/core/dev.c is a better place for netif_notify_peers(), because other net event notify functions also stay in this file. And rename it to netdev_notify_peers(). Cc: David S. Miller <[email protected]> Cc: Ian Campbell <[email protected]> Signed-off-by: Cong Wang <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-07-25hyperv: Add a check for ring_size valueHaiyang Zhang1-1/+6
It prevents ring_size being set to a too small value. Reported-by: Jason Wang <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-07-16hyperv: Add support for setting MAC from within guestsHaiyang Zhang1-1/+29
This adds support for setting synthetic NIC MAC address from within Linux guests. Before using this feature, the option "spoofing of MAC address" should be enabled at the Hyper-V manager / Settings of the synthetic NIC. Thanks to Kin Cho <[email protected]> for the initial implementation and tests. And, thanks to Long Li <[email protected]> for the debugging works. Reported-and-tested-by: Kin Cho <[email protected]> Reported-by: Long Li <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-04-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-24/+14
Fix merge between commit 3adadc08cc1e ("net ax25: Reorder ax25_exit to remove races") and commit 0ca7a4c87d27 ("net ax25: Simplify and cleanup the ax25 sysctl handling") The former moved around the sysctl register/unregister calls, the later simply removed them. With help from Stephen Rothwell. Signed-off-by: David S. Miller <[email protected]>
2012-04-21net/hyperv: Adding cancellation to ensure rndis filter is closedWenqi Ma1-24/+14
Although the network interface is down, the RX packets number which could be observed by ifconfig may keep on increasing. This is because the WORK scheduled in netvsc_set_multicast_list() may be executed after netvsc_close(). That means the rndis filter may be re-enabled by do_set_multicast() even if it was closed by netvsc_close(). By canceling possible WORK before close the rndis filter, the issue could be never happened. Signed-off-by: Wenqi Ma <[email protected]> Reviewed-by: Wei Yongjun <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-04-03net/hyperv: Add flow control based on hi/low watermarkHaiyang Zhang1-1/+5
In the existing code, we only stop queue when the ringbuffer is full, so the current packet has to be dropped or retried from upper layer. This patch stops the tx queue when available ringbuffer is below the low watermark. So the ringbuffer still has small amount of space available for the current packet. This will reduce the overhead of retries on sending. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-03-19net/hyperv: Fix the code handling tx busyHaiyang Zhang1-4/+1
Instead of dropping the packet, we keep the skb buffer, and return NETDEV_TX_BUSY to let upper layer retry send. This will not cause endless loop, because the host is taking data away from ring buffer, and we have called the stop_queue before returning NETDEV_TX_BUSY. The stop_queue was called in the function netvsc_send() in file netvsc.c, then it returns to rndis_filter_send(), which returns to netvsc_start_xmit() in file netvsc_drv.c. So the NETDEV_TX_BUSY is indeed returned AFTER queue is stopped. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Acked-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-03-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-2/+2
2012-03-16net/hyperv: fix erroneous NETDEV_TX_BUSY useEric Dumazet1-2/+2
A driver start_xmit() method cannot free skb and return NETDEV_TX_BUSY, since caller is going to reuse freed skb. This is mostly a revert of commit bf769375c (staging: hv: fix the return status of netvsc_start_xmit()) In fact netif_tx_stop_queue() / netif_stop_queue() is needed before returning NETDEV_TX_BUSY or you can trigger a ksoftirqd fatal loop. In case of memory allocation error, only safe way is to drop the packet and return NETDEV_TX_OK Signed-off-by: Eric Dumazet <[email protected]> Cc: "K. Y. Srinivasan" <[email protected]> Cc: Haiyang Zhang <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Reviewed-by: Haiyang Zhang <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-03-12net/hyperv: Add support for vlan trunking from guestsHaiyang Zhang1-2/+6
With this feature, a Linux guest can now configure multiple vlans through a single synthetic NIC on Win8 Hyper-V host. Signed-off-by: Haiyang Zhang <[email protected]> Reviewed-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-03-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller1-2/+2
2012-03-08net/hyperv: Use the built-in macro KBUILD_MODNAME for this driverHaiyang Zhang1-2/+2
Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Cc: Olaf Hering <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-02-05net/hyperv: Correct the assignment in netvsc_recv_callback()Haiyang Zhang1-5/+2
The first assignment to variable "net" is wrong, but overridden by the latter assignments. So the bug isn't manifested. Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-02-02net/hyperv: Fix the page buffer when an RNDIS message goes beyond page boundaryHaiyang Zhang1-4/+4
There is a possible data corruption if an RNDIS message goes beyond page boundary in the sending code path. This patch fixes the problem. Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-02-02net/hyperv: Use netif_tx_disable() instead of netif_stop_queue() when necessaryHaiyang Zhang1-4/+4
For code path not on the xmit, use netif_tx_disable() instead of netif_stop_queue() to ensure other CPUs are not doing xmit. Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-02-01net/hyperv: rx_bytes should account the ether header sizeWei Yongjun1-1/+1
skb->len after call eth_type_trans() does not include the ether header size, but rx_bytes should account it. Signed-off-by: Wei Yongjun <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-01-24net/hyperv: fix possible memory leak in do_set_multicast()Wei Yongjun1-2/+3
do_set_multicast() may not free the memory malloc in netvsc_set_multicast_list(). Signed-off-by: Wei Yongjun <[email protected]> Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2012-01-04net/hyperv: Add support for jumbo frame up to 64KBHaiyang Zhang1-9/+61
Allow the user set the MTU up to 65536 for Linux guests running on Hyper-V 2008 R2 or later. Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2012-01-04net/hyperv: Remove unnecessary kmap_atomic in netvsc driverHaiyang Zhang1-20/+2
__get_free_pages() doesn't return HI memory, so the memory is always mapped. kmap_atomic() is not necessary here. This patch removes the kmap_atomic() calls and related code for locking and page manipulation. Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-12-09net/hyperv: Fix the stop/wake queue mechanismHaiyang Zhang1-23/+1
The ring buffer is only used to pass meta data for outbound packets. The actual payload is accessed by DMA from the host. So the stop/wake queue mechanism based on counting and comparing number of pages sent v.s. number of pages in the ring buffer is wrong. Also, there is a race condition in the stop/wake queue calls, which can stop xmit queue forever. The new stop/wake queue mechanism is based on the actual bytes used by outbound packets in the ring buffer. The check for number of outstanding sends after stop queue prevents the race condition that can cause wake queue happening earlier than stop queue. Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Reported-by: Long Li <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-12-01net/hyperv: Add support for promiscuous mode settingHaiyang Zhang1-3/+43
Add code to accept promiscuous mode setting, and pass it to RNDIS filter. Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: K. Y. Srinivasan <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
2011-11-29staging: hv: move hv_netvsc out of staging areaHaiyang Zhang1-0/+456
hv_netvsc has been reviewed on netdev mailing list on 6/09/2011. All recommended changes have been made. We are requesting to move it out of staging area. Signed-off-by: Haiyang Zhang <[email protected]> Signed-off-by: KY Srinivasan <[email protected]> Signed-off-by: Mike Sterling <[email protected]> Acked-by: Stephen Hemminger <[email protected]> Acked-by: David S. Miller <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
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