Commit Graph

48 Commits

Author SHA1 Message Date
Jerin Jacob
9c99878aa1 log: introduce logtype register macro
Introduce the RTE_LOG_REGISTER macro to avoid the code duplication
in the logtype registration process.

It is a wrapper macro for declaring the logtype, registering it and
setting its level in the constructor context.

Signed-off-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Adam Dybkowski <adamx.dybkowski@intel.com>
Acked-by: Sachin Saxena <sachin.saxena@nxp.com>
Acked-by: Akhil Goyal <akhil.goyal@nxp.com>
2020-07-03 15:52:51 +02:00
Stephen Hemminger
a4f53bec7c net/netvsc: do not query VF link state
When the primary device link state is queried, there is no
need to query the VF state as well. The application only sees
the state of the synthetic device.

Fixes: dc7680e859 ("net/netvsc: support integrated VF")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-05-28 17:57:07 +02:00
Stephen Hemminger
b757deb8e3 net/netvsc: change datapath logging
The PMD_TX_LOG and PMD_RX_LOG can hide errors since this
debug log is typically disabled. Change the code to use
PMD_DRV_LOG for errors.

Under load, the ring buffer to the host can fill.
Add some statistics to estimate the impact and see other errors.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-05-28 17:57:07 +02:00
Stephen Hemminger
a41ef8eefe net/netvsc: implement descriptor status
These functions are useful for applications and debugging.
The netvsc PMD also transparently handles the rx/tx descriptor
functions for underlying VF device.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-05-28 17:57:07 +02:00
Stephen Hemminger
c7b82b14e3 net/netvsc: support per-queue info requests
There is not a lot of info here from this driver.
But worth supporting these additional info queries.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-05-28 17:57:07 +02:00
Stephen Hemminger
c6611b77d0 net/netvsc: do not configure RSS if disabled
This fixes the problem where driver would not start if only
have a single Rx queue and multiple Txq. In that case, RSS
should stay disabled.

Fixes: 92d23a57ca ("net/netvsc: support configuring RSS parameters")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-05-11 22:27:39 +02:00
Stephen Hemminger
019a28912b net/netvsc: do RSS across Rx queue only
If number of tx queues is greater than the number of rx queues;
the driver ends up allocating more channels than rx queues.
The problem is that the RSS indirection table is programmed such
that some packets will end up on a channel that would never be
polled. The fix is to limit the RSS indirection table by number
of rx queues not channels.

Fixes: 92d23a57ca ("net/netvsc: support configuring RSS parameters")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-05-11 22:27:39 +02:00
Stephen Hemminger
81938ebb54 net/netvsc: manage VF port under read/write lock
With multiple channels, the primary channel may receive notification
that VF has been added or removed while secondary channel is in
process of doing receive or transmit.  Resolve this race by converting
existing vf_lock to a reader/writer lock.

Users of lock (tx/rx/stats) acquire for read, and actions like
add/remove acquire it for write.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-05-11 22:27:39 +02:00
Stephen Hemminger
672f4d127b net/netvsc: fix comment spelling
No code change here.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-05-11 22:27:39 +02:00
Stephen Hemminger
30408aab2d net/netvsc: fix memory free on device close
The netvsc PMD was putting the mac address in private data but the
core rte_ethdev doesn't allow that it. It has to be in rte_malloc'd
memory or a message will be printed on shutdown/close.
 EAL: Invalid memory

Fixes: f8279f47dd ("net/netvsc: fix crash in secondary process")
Cc: stable@dpdk.org
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-04-21 13:57:06 +02:00
Stephen Hemminger
cc02518132 net/netvsc: split send buffers from Tx descriptors
The VMBus has reserved transmit area (per device) and transmit
descriptors (per queue). The previous code was always having a 1:1
mapping between send buffers and descriptors.
This can lead to one queue starving another and also buffer bloat.

Change to working more like FreeBSD where there is a pool of transmit
descriptors per queue. If send buffer is not available then no
aggregation happens but the queue can still drain.

Fixes: 4e9c73e96e ("net/netvsc: add Hyper-V network device")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-04-21 13:57:06 +02:00
Stephen Hemminger
047ad3787a net/netvsc: initialize link state
If application is using link state interrupt, the correct link state
needs to be filled in when device is started. This is similar to
how virtio updates link information.

Fixes: 4e9c73e96e ("net/netvsc: add Hyper-V network device")
Cc: stable@dpdk.org

Reported-by: Mohammed Gamal <mgamal@redhat.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Tested-by: Mohammed Gamal <mgamal@redhat.com>
2020-02-14 12:42:12 +01:00
Stephen Hemminger
f8279f47dd net/netvsc: fix crash in secondary process
The secondary process would crash trying to get the offload
capability of the device. Since the device capabilities were
already set by the primary process this was unnecessary.

Fixes: 4e9c73e96e ("net/netvsc: add Hyper-V network device")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-01-17 19:46:26 +01:00
Stephen Hemminger
b604e80632 net/netvsc: disable before changing RSS parameters
In order to change RSS parameters, the host requires that RSS
is disable first.

Fixes: 92d23a57ca ("net/netvsc: support configuring RSS parameters")
Cc: stable@dpdk.org

Signed-off-by: Donald Lee <donald_lee@trendmicro.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Tested-by: Dexuan Cui <decui@microsoft.com>
Tested-by: Abhishek Marathe <abmarath@microsoft.com>
2020-01-17 19:45:23 +01:00
Stephen Hemminger
b1cf08ae09 net/netvsc: fix RSS offload flag
The change to add OFFLOAD_RSS_HASH broke use of netvsc PMD
with testpmd. The netvsc driver fails during configure step:

	Configuring Port 1 (socket 0)
	hn_dev_configure(): unsupported RX offload: 0x80000

Fixes: 5d30897295 ("ethdev: add mbuf RSS update as an offload")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2020-01-17 19:45:23 +01:00
Andrew Rybchenko
73fb89dd6a drivers/net: fix RSS hash offload flag if no RSS
By default RSS hash delivery (offload) is bound to RSS mode and
it is incorrect to advertise it as enabled if Rx multi-queue mode
has no RSS.

Fixes: 8b945a7f7d ("drivers/net: update Rx RSS hash offload capabilities")

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-11-20 17:36:06 +01:00
Pavan Nikhilesh
8b945a7f7d drivers/net: update Rx RSS hash offload capabilities
Add DEV_RX_OFFLOAD_RSS_HASH flag for all PMDs that support RSS hash
delivery.

Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Reviewed-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Hemant Agrawal <hemant.agrawal@nxp.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-11-11 16:15:37 +01:00
Ivan Ilchenko
ca041cd44f ethdev: change allmulticast callbacks to return status
Enabling/disabling of allmulticast mode is not always successful and
it should be taken into account to be able to handle it properly.

When correct return status is unclear from driver code, -EAGAIN is used.

Signed-off-by: Ivan Ilchenko <ivan.ilchenko@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Hyong Youb Kim <hyonkim@cisco.com>
2019-10-07 15:00:55 +02:00
Igor Romanov
fd2d28fcb5 ethdev: change owner delete function to return int
Change rte_eth_dev_owner_delete() return value from void to int
and return negative errno values in case of error conditions.

Right now there is only one error case for rte_eth_dev_owner_delete() -
invalid owner, but it still makes sense to return error to catch bugs
in the code which uses the function.

Also update the usage of the function in drivers/netvsc
according to the new return type.

Signed-off-by: Igor Romanov <igor.romanov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
2019-10-07 15:00:55 +02:00
Igor Romanov
9970a9ad07 ethdev: make stats and xstats reset callbacks return int
Change return value of the callbacks from void to int. Make
implementations across all drivers return negative errno
values in case of error conditions.

Both callbacks are updated together because a large number of
drivers assign the same function to both callbacks.

Signed-off-by: Igor Romanov <igor.romanov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-07 15:00:54 +02:00
Andrew Rybchenko
9039c81257 ethdev: change promiscuous callbacks to return status
Enabling/disabling of promiscuous mode is not always successful and
it should be taken into account to be able to handle it properly.

When correct return status is unclear from driver code, -EAGAIN is used.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Acked-by: Matan Azrad <matan@mellanox.com>
Acked-by: Hyong Youb Kim <hyonkim@cisco.com>
2019-10-07 15:00:54 +02:00
Ivan Ilchenko
bdad90d12e ethdev: change device info get callback to return int
Change eth_dev_infos_get_t return value from void to int.
Make eth_dev_infos_get_t implementations across all drivers to return
negative errno values if case of error conditions.

Signed-off-by: Ivan Ilchenko <ivan.ilchenko@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-10-07 14:45:35 +02:00
Stephen Hemminger
cc9271f9e7 net/netvsc: fix xstats for VF device
The id values for VF stats were not being offset correctly.
And getting xstats for VF device only worked if VF device supported
it; it did not support the generic stats.

Fixes: dc7680e859 ("net/netvsc: support integrated VF")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2019-06-28 20:32:18 +02:00
Mohsin Mazhar Shaikh
b21ad01a82 net/netvsc: fix xstats id
The xstats_get was not setting id correctly for each entry.

Fixes: 4e9c73e96e ("net/netvsc: add Hyper-V network device")
Cc: stable@dpdk.org

Signed-off-by: Mohsin Mazhar Shaikh <mohsinmazhar_shaikh@trendmicro.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
2019-06-28 20:32:18 +02:00
Stephen Hemminger
92d23a57ca net/netvsc: support configuring RSS parameters
Add RSS hash key and reta update and query functions.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2019-06-28 20:32:18 +02:00
Stephen Hemminger
3a899f8afc net/netvsc: fix RSS offload settings
Use the result from querying host to show the RSS info.

Fixes: 4e9c73e96e ("net/netvsc: add Hyper-V network device")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2019-06-28 20:32:18 +02:00
Stephen Hemminger
5e811a1a39 net/netvsc: initialize VF spinlock
The VF spinlock was never initialized. It works because it is
in zmalloc'd memory and an unlocked lock on x86 is 0.
But for good practice, all spinlock's should be initialized.

Fixes: dc7680e859 ("net/netvsc: support integrated VF")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2019-06-20 23:42:04 +02:00
Olivier Matz
35b2d13fd6 net: add rte prefix to ether defines
Add 'RTE_' prefix to defines:
- rename ETHER_ADDR_LEN as RTE_ETHER_ADDR_LEN.
- rename ETHER_TYPE_LEN as RTE_ETHER_TYPE_LEN.
- rename ETHER_CRC_LEN as RTE_ETHER_CRC_LEN.
- rename ETHER_HDR_LEN as RTE_ETHER_HDR_LEN.
- rename ETHER_MIN_LEN as RTE_ETHER_MIN_LEN.
- rename ETHER_MAX_LEN as RTE_ETHER_MAX_LEN.
- rename ETHER_MTU as RTE_ETHER_MTU.
- rename ETHER_MAX_VLAN_FRAME_LEN as RTE_ETHER_MAX_VLAN_FRAME_LEN.
- rename ETHER_MAX_VLAN_ID as RTE_ETHER_MAX_VLAN_ID.
- rename ETHER_MAX_JUMBO_FRAME_LEN as RTE_ETHER_MAX_JUMBO_FRAME_LEN.
- rename ETHER_MIN_MTU as RTE_ETHER_MIN_MTU.
- rename ETHER_LOCAL_ADMIN_ADDR as RTE_ETHER_LOCAL_ADMIN_ADDR.
- rename ETHER_GROUP_ADDR as RTE_ETHER_GROUP_ADDR.
- rename ETHER_TYPE_IPv4 as RTE_ETHER_TYPE_IPv4.
- rename ETHER_TYPE_IPv6 as RTE_ETHER_TYPE_IPv6.
- rename ETHER_TYPE_ARP as RTE_ETHER_TYPE_ARP.
- rename ETHER_TYPE_VLAN as RTE_ETHER_TYPE_VLAN.
- rename ETHER_TYPE_RARP as RTE_ETHER_TYPE_RARP.
- rename ETHER_TYPE_QINQ as RTE_ETHER_TYPE_QINQ.
- rename ETHER_TYPE_ETAG as RTE_ETHER_TYPE_ETAG.
- rename ETHER_TYPE_1588 as RTE_ETHER_TYPE_1588.
- rename ETHER_TYPE_SLOW as RTE_ETHER_TYPE_SLOW.
- rename ETHER_TYPE_TEB as RTE_ETHER_TYPE_TEB.
- rename ETHER_TYPE_LLDP as RTE_ETHER_TYPE_LLDP.
- rename ETHER_TYPE_MPLS as RTE_ETHER_TYPE_MPLS.
- rename ETHER_TYPE_MPLSM as RTE_ETHER_TYPE_MPLSM.
- rename ETHER_VXLAN_HLEN as RTE_ETHER_VXLAN_HLEN.
- rename ETHER_ADDR_FMT_SIZE as RTE_ETHER_ADDR_FMT_SIZE.
- rename VXLAN_GPE_TYPE_IPV4 as RTE_VXLAN_GPE_TYPE_IPV4.
- rename VXLAN_GPE_TYPE_IPV6 as RTE_VXLAN_GPE_TYPE_IPV6.
- rename VXLAN_GPE_TYPE_ETH as RTE_VXLAN_GPE_TYPE_ETH.
- rename VXLAN_GPE_TYPE_NSH as RTE_VXLAN_GPE_TYPE_NSH.
- rename VXLAN_GPE_TYPE_MPLS as RTE_VXLAN_GPE_TYPE_MPLS.
- rename VXLAN_GPE_TYPE_GBP as RTE_VXLAN_GPE_TYPE_GBP.
- rename VXLAN_GPE_TYPE_VBNG as RTE_VXLAN_GPE_TYPE_VBNG.
- rename ETHER_VXLAN_GPE_HLEN as RTE_ETHER_VXLAN_GPE_HLEN.

Do not update the command line library to avoid adding a dependency to
librte_net.

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-05-24 13:34:45 +02:00
Olivier Matz
6d13ea8e8e net: add rte prefix to ether structures
Add 'rte_' prefix to structures:
- rename struct ether_addr as struct rte_ether_addr.
- rename struct ether_hdr as struct rte_ether_hdr.
- rename struct vlan_hdr as struct rte_vlan_hdr.
- rename struct vxlan_hdr as struct rte_vxlan_hdr.
- rename struct vxlan_gpe_hdr as struct rte_vxlan_gpe_hdr.

Do not update the command line library to avoid adding a dependency to
librte_net.

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
2019-05-24 13:34:45 +02:00
Stephen Hemminger
8428da7285 net/netvsc: free all queues on close
When dev_close is called, the netvsc driver will clean up all
queues including the primary ring buffer.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2019-05-03 18:45:23 +02:00
Stephen Hemminger
4a9efcddad net/netvsc: fix VF support with secondary process
The VF device management in netvsc was using a pointer to the
rte_eth_devices. But the actual rte_eth_devices array is likely to
be place in the secondary process; which causes a crash.

The solution is to record the port of the VF (instead of a pointer)
and find the device in the per process array as needed.

Fixes: dc7680e859 ("net/netvsc: support integrated VF")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2019-03-29 13:43:55 +01:00
Stephen Hemminger
f2b76d22f8 net/netvsc: fix probe when VF not found
It is possible that the VF device exists but DPDK doesn't know
about it. This could happen if device was blacklisted or more
likely the necessary device (Mellanox) was not part of the DPDK
configuration.

In either case, the right thing to do is just keep working
but only with the slower para-virtual device.

Fixes: dc7680e859 ("net/netvsc: support integrated VF")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2018-12-21 16:22:40 +01:00
Stephen Hemminger
c578d8507b net/netvsc: fix transmit descriptor pool cleanup
On device close or startup errors, the transmit descriptor pool
was being left behind.

Fixes: 4e9c73e96e ("net/netvsc: add Hyper-V network device")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2018-12-21 16:22:40 +01:00
Stephen Hemminger
3c32fdf432 net/netvsc: support receive without VLAN strip
In some cases, VLAN stripping is not desireable. If necessary
re-insert stripped VLAN tag.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2018-12-21 16:22:40 +01:00
Stephen Hemminger
afbc22bf51 net/netvsc: disable multi-queue on older servers
NDIS multi-queue support is only in WS2012 or later. Check the NDIS
version to limit to single queue on older versions. Similar code
exists in Linux driver.

Fixes: 4e9c73e96e ("net/netvsc: add Hyper-V network device")
Cc: stable@dpdk.org

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2018-12-19 03:02:13 +01:00
Thomas Monjalon
df285f0e65 drivers: remove useless constructor headers
A constructor is usually declared with RTE_INIT* macros.
As it is a static function, no need to declare before its definition.
The macro is used directly in the function definition.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
2018-11-01 22:38:00 +01:00
Thomas Monjalon
e16adf08e5 ethdev: free all common data when releasing port
This is a clean-up of common ethdev data freeing.
All data freeing are moved to rte_eth_dev_release_port()
and done only in case of primary process.

It is probably fixing some memory leaks for PMDs which were
not freeing all data.

Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
2018-10-26 22:14:05 +02:00
Stephen Hemminger
9ba102f6b0 net/netvsc: check return from kvargs process
Should check return value from processing latency value.

Coverity issue: 322104
Fixes: a25d39a3eb ("net/netvsc: allow tuning latency with devargs")

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2018-10-11 18:53:48 +02:00
Stephen Hemminger
7d146e1769 net/netvsc: support multicast/promiscuous settings on VF
Provide API's to enable allmulticast and promiscuous in Netvsc PMD
with VF. This keeps the VF and PV path in sync.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2018-10-11 18:53:48 +02:00
Stephen Hemminger
dc7680e859 net/netvsc: support integrated VF
Integrate accelerated networking support into netvsc PMD.
This allows netvsc to manage VF without using failsafe or vdev_netvsc.
For the exception vswitch path some tests like transmit
get a 22% increase in packets/sec.
For the VF path, the code is slightly shorter but has no
real change in performance.

Pro:
   * using netvsc is more like other DPDK NIC's
   * the exception packet uses less CPU
   * much smaller code size
   * no locking required on VF transmit/receive path
   * no legacy Linux network device to get mangled by userspace
   * much simpler (1K vs 9K) LOC
   * unified extended statistics

Con:
   * using netvsc has more complex startup model
   * no bifurcated driver support
   * no flow support (since host does not have flow API).
   * no tunnel offload support
   * no receive interrupt support

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2018-09-14 20:08:41 +02:00
Stephen Hemminger
f6ddcf80ad net/netvsc: implement link state change callback
Implement callback functionality on link state changes.
This is not really driven off of interrupt file descriptor like most other
PMD's. Instead, it happens when a link state change message arrives
in the common ring buffer.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2018-09-14 20:08:41 +02:00
Stephen Hemminger
85c4209189 net/netvsc: exhausting Tx descriptors is not an error
If application sends faster than vswitch can keep up, then the
transmit descriptor pool will be exhausted. This is not a failure
so change the name statistic and don't include it in oerrors.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2018-09-14 20:08:41 +02:00
Stephen Hemminger
a25d39a3eb net/netvsc: allow tuning latency with devargs
Allow overriding default guest to host latency on per device basis
with devargs.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2018-09-14 20:08:41 +02:00
Ferruh Yigit
323e7b667f ethdev: make default behavior CRC strip on Rx
Removed DEV_RX_OFFLOAD_CRC_STRIP offload flag.
Without any specific Rx offload flag, default behavior by PMDs is to
strip CRC.

PMDs that support keeping CRC should advertise DEV_RX_OFFLOAD_KEEP_CRC
Rx offload capability.

Applications that require keeping CRC should check PMD capability first
and if it is supported can enable this feature by setting
DEV_RX_OFFLOAD_KEEP_CRC in Rx offload flag in rte_eth_dev_configure()

Signed-off-by: Ferruh Yigit <ferruh.yigit@intel.com>
Acked-by: Tomasz Duszynski <tdu@semihalf.com>
Acked-by: Shahaf Shuler <shahafs@mellanox.com>
Reviewed-by: Maxime Coquelin <maxime.coquelin@redhat.com>
Acked-by: Jan Remes <remes@netcope.com>
Acked-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Acked-by: Hyong Youb Kim <hyonkim@cisco.com>
2018-09-14 20:08:41 +02:00
Stephen Hemminger
7a866f0d1b net/netvsc: implement free Tx mbuf on demand
Add tx_done_cleanup ethdev hook to allow application to
control if/when it wants completions to be handled.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2018-08-28 15:27:39 +02:00
Stephen Hemminger
0312753ef2 net/netvsc: set lower host latency
Tune the vmbus connection so the host scans faster. This improves
transmit performance. The host default value is 100us but setting
to 50us reduces packet loss significantly.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2018-08-28 15:27:39 +02:00
Stephen Hemminger
2d2c4991b4 net/netvsc: add queue info
This helps when diagnosing ring issues in testpmd.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2018-08-05 11:03:15 +02:00
Stephen Hemminger
4e9c73e96e net/netvsc: add Hyper-V network device
The driver supports Hyper-V networking directly like
virtio for KVM or vmxnet3 for VMware.

This code is based off of the FreeBSD driver. The file and variable
names are kept the same to help with understanding (with most of the
BSD style warts removed).

This version supports the latest NetVSP 6.1 version and
older versions.

Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
2018-07-13 23:48:07 +02:00