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path: root/drivers/net/ethernet
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2020-09-15net/mlx5: E-Switch, Dedicated metadata for uplink vportVu Pham1-4/+1
Uplink vport must have a dedicated metadata with vhca_id being part of the metadata. Fixes: 133dcfc577ea ("net/mlx5: E-Switch, Alloc and free unique metadata for match") Signed-off-by: Vu Pham <[email protected]> Reviewed-by: Mark Bloch <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]>
2020-09-15net/mlx5: E-Switch, Check and enable metadata support flag before usingVu Pham1-9/+6
Check E-Switch capabilities and enable metadata support flag before using it to setup other features that need metadata. Signed-off-by: Vu Pham <[email protected]> Reviewed-by: Mark Bloch <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]>
2020-09-15net/mlx5e: Add LAG warning if bond slave is not lag masterJianbo Liu3-11/+41
LAG offload can't be enabled if the enslaved PF is not lag master, which is indicated by HCA capabilities bit. It is cleared if more than 64 VFs are configured for this PF. Previously, a data structure is created to store lag info, including PFs to be enslaved, then a handler is registered for netdev notifier. However, this initialization is skipped if PF is not lag master. So PF can't handle CHANGEUPPER event from upper bond device. Even worse, PF is enslaved silently, and LAG offload is not activated. Fix this by registering netdev notifier for PFs which are not lag masters. When CHANGEUPPER event is received, and both physical ports (and only them) on the same NIC are about to be enslaved, a warning is returned for user to know it. Signed-off-by: Jianbo Liu <[email protected]> Reviewed-by: Raed Salem <[email protected]> Reviewed-by: Roi Dayan <[email protected]> Reviewed-by: Jiri Pirko <[email protected]> Reviewed-by: Raed Salem <[email protected]> Reviewed-by: Roi Dayan <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]>
2020-09-15net/mlx5e: Add LAG warning for unsupported tx typeJianbo Liu1-6/+11
If bond tx type is not active-backup or hash, LAG offload can't be enabled. When CHANGEUPPER event is received, and both PFs (and only them) under the same lag master are about to be enslaved, a warning is returned for user to know the offload failure, otherwise PFs are enslaved silently without LAG offload activated. Signed-off-by: Jianbo Liu <[email protected]> Reviewed-by: Raed Salem <[email protected]> Reviewed-by: Roi Dayan <[email protected]> Reviewed-by: Jiri Pirko <[email protected]> Reviewed-by: Raed Salem <[email protected]> Reviewed-by: Roi Dayan <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]>
2020-09-15net/mlx5e: Return a valid errno if can't get lag device indexJianbo Liu2-4/+9
Change the return value to -ENOENT, to make it more meaningful. Signed-off-by: Jianbo Liu <[email protected]> Reviewed-by: Jiri Pirko <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]>
2020-09-15net/mlx5: Don't call timecounter cyc2time directly from 1PPS flowEran Ben Elisha1-2/+3
Before calling timecounter_cyc2time(), clock->lock must be taken. Use mlx5_timecounter_cyc2time instead which guarantees a safe access. Fixes: afc98a0b46d8 ("net/mlx5: Update ptp_clock_event foreach PPS event") Signed-off-by: Eran Ben Elisha <[email protected]>
2020-09-15net/mlx5: Release clock lock before scheduling a PPS workEran Ben Elisha1-1/+1
Holding the clock lock is not required when scheduling a PPS work. Signed-off-by: Eran Ben Elisha <[email protected]> Reviewed-by: Moshe Shemesh <[email protected]>
2020-09-15net/mlx5: Rename ptp clock infoEran Ben Elisha1-1/+1
Fix a typo in ptp_clock_info naming: mlx5_p2p -> mlx5_ptp. Signed-off-by: Eran Ben Elisha <[email protected]>
2020-09-15net/mlx5: Always use container_of to find mdev pointer from clock structEran Ben Elisha1-23/+29
Clock struct is part of struct mlx5_core_dev. Code was inconsistent, on some cases used container_of and on another used clock->mdev. Align code to use container_of amd remove clock->mdev pointer. While here, fix reverse xmas tree coding style. Signed-off-by: Eran Ben Elisha <[email protected]> Reviewed-by: Moshe Shemesh <[email protected]>
2020-09-15net/mlx5: remove erroneous fallthroughDan Carpenter1-1/+0
This isn't a fall through because it was after a return statement. The fall through annotation leads to a Smatch warning: drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c:246 mlx5e_ethtool_get_sset_count() warn: ignoring unreachable code. Signed-off-by: Dan Carpenter <[email protected]> Reviewed-by: Gustavo A. R. Silva <[email protected]>
2020-09-15net/mlx5: Fix uninitialized variable warningMoshe Tal1-1/+1
Add variable initialization to eliminate the warning "variable may be used uninitialized". Fixes: 5f29458b77d5 ("net/mlx5e: Support dump callback in TX reporter") Signed-off-by: Moshe Tal <[email protected]> Reviewed-by: Aya Levin <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]>
2020-09-14ionic: fix up debugfs after queue swapShannon Nelson1-0/+15
Clean and rebuild the debugfs info for the queues being swapped. Fixes: a34e25ab977c ("ionic: change the descriptor ring length without full reset") Signed-off-by: Shannon Nelson <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: lantiq: Disable IRQs only if NAPI gets scheduledHauke Mehrtens1-3/+5
The napi_schedule() call will only schedule the NAPI if it is not already running. To make sure that we do not deactivate interrupts without scheduling NAPI only deactivate the interrupts in case NAPI also gets scheduled. Signed-off-by: Hauke Mehrtens <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: lantiq: Use napi_complete_done()Hauke Mehrtens1-4/+4
Use napi_complete_done() and activate the interrupts when this function returns true. This way the generic NAPI code can take care of activating the interrupts. Signed-off-by: Hauke Mehrtens <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: lantiq: use netif_tx_napi_add() for TX NAPIHauke Mehrtens1-1/+1
netif_tx_napi_add() should be used for NAPI in the TX direction instead of the netif_napi_add() function. Signed-off-by: Hauke Mehrtens <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: lantiq: Wake TX queue againHauke Mehrtens1-0/+3
The call to netif_wake_queue() when the TX descriptors were freed was missing. When there are no TX buffers available the TX queue will be stopped, but it was not started again when they are available again, this is fixed in this patch. Fixes: fe1a56420cf2 ("net: lantiq: Add Lantiq / Intel VRX200 Ethernet driver") Signed-off-by: Hauke Mehrtens <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14mlxsw: spectrum_span: Derive SBIB from maximum port speed & MTUPetr Machata3-67/+4
The SBIB register configures the size of an internal buffer that the Spectrum ASICs use when mirroring traffic on egress. This size should be taken into account when validating that the port headroom buffers are not larger than the chip can handle. Up until now this was not done, which is incidentally not a problem, because the priority group buffers that mlxsw auto-configures are small enough that the boundary condition could not be violated. However when dcbnl_setbuffer is implemented, the user has control over sizes of PG buffers, and they might overshoot the headroom capacity. However the size of the SBIB buffer depends on port speed, and that cannot be vetoed. Therefore SBIB size should be deduced from maximum port speed. Additionally, once the buffers are configured by hand, the user could get into an uncomfortable situation where their MTU change requests get vetoed, because the SBIB does not fit anymore. Therefore derive SBIB size from maximum permissible MTU as well. Remove all the code that adjusted the SBIB size whenever speed or MTU changed. Signed-off-by: Petr Machata <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14mlxsw: spectrum: Keep maximum speed aroundPetr Machata2-0/+10
The maximum port speed depends on link modes supported by the port, and for Ethernet ports is constant. The maximum speed will be handy when setting SBIB, the internal buffer used for traffic mirroring. Therefore, keep it in struct mlxsw_sp_port for easy access. Signed-off-by: Petr Machata <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14mlxsw: spectrum: Keep maximum MTU aroundPetr Machata2-5/+21
The maximum port MTU depends on port type. On Spectrum, mlxsw configures all ports as Ethernet ports, and the maximum MTU therefore never changes. Besides checking MTU configuration, maximum MTU will also be handy when setting SBIB, the internal buffer used for traffic mirroring. Therefore, keep it in struct mlxsw_sp_port for easy access. Signed-off-by: Petr Machata <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14mlxsw: spectrum_ethtool: Introduce ptys_max_speed callbackPetr Machata2-0/+45
The SBIB register configures the size of an internal buffer that the Spectrum ASICs use when mirroring traffic on egress. This size should be taken into account when validating that the port headroom buffers are not larger than the chip can handle. Up until now this was not done, which is incidentally not a problem, because the priority group buffers that mlxsw auto-configures are small enough that the boundary condition could not be violated. When dcbnl_setbuffer is implemented, the user gets control over sizes of PG buffers, and they might overshoot the headroom capacity. However the size of the SBIB buffer depends on port speed, which cannot be vetoed. There is obviously no way to retroactively push back on requests for overlarge PG buffers, or reject an overlarge MTU, or cancel losslessness of a certain PG. Therefore, instead of taking into account the current speed when calculating SBIB buffer size, take into account the maximum speed that a port with given Ethernet protocol capabilities can have. To that end, add a new ethtool callback, ptys_max_speed, which determines this maximum speed. Signed-off-by: Petr Machata <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14mlxsw: spectrum_ethtool: Extract a helper to get Ethernet attributesPetr Machata1-10/+28
In order to allow reusing the logic, extract from mlxsw_sp_port_get_link_ksettings() the code to obtain Ethernet protocol attributes, mlxsw_sp_port_ptys_query(). Signed-off-by: Petr Machata <[email protected]> Signed-off-by: Ido Schimmel <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14Merge branch '40GbE' of ↵David S. Miller9-48/+51
git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/next-queue Tony Nguyen says: ==================== 40GbE Intel Wired LAN Driver Updates 2020-09-14 This series contains updates to i40e driver only. Li RongQing removes binding affinity mask to a fixed CPU and sets prefetch of Rx buffer page to occur conditionally. Björn provides AF_XDP performance improvements by not prefetching HW descriptors, using 16 byte descriptors, and moving buffer allocation out of Rx processing loop. v2: Define prefetch_page_address in a common header for patch 2. Dropped, previous, patch 5 as it is being reworked to be more generalized. ==================== Signed-off-by: David S. Miller <[email protected]>
2020-09-14hinic: add vxlan segmentation and cs offload supportLuo bin2-12/+46
Add NETIF_F_GSO_UDP_TUNNEL and NETIF_F_GSO_UDP_TUNNEL_CSUM features to support vxlan segmentation and checksum offload. Ipip and ipv6 tunnel packets are regarded as non-tunnel pkt for hw and as for other type of tunnel pkts, checksum offload is disabled. Signed-off-by: Luo bin <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: qlcnic: remove unused variable 'val' in qlcnic_83xx_cam_unlock()Zhang Changzhong1-2/+1
Fixes the following W=1 kernel build warning(s): drivers/net/ethernet/qlogic/qlcnic/qlcnic_83xx_hw.c:661:6: warning: variable 'val' set but not used [-Wunused-but-set-variable] 661 | u32 val; | ^~~ After commit 7f9664525f9c ("qlcnic: 83xx memory map and HW access routines"), variable 'val' is never used in qlcnic_83xx_cam_unlock(), so removing it to avoid build warning. Reported-by: Hulk Robot <[email protected]> Signed-off-by: Zhang Changzhong <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: pxa168_eth: remove unused variable 'retval' int pxa168_eth_change_mtu()Zhang Changzhong1-2/+1
Fixes the following W=1 kernel build warning(s): drivers/net/ethernet/marvell/pxa168_eth.c:1190:6: warning: variable 'retval' set but not used [-Wunused-but-set-variable] 1190 | int retval; | ^~~~~~ Function pxa168_eth_change_mtu() always return zero, so variable 'retval' is redundant, just remove it. Reported-by: Hulk Robot <[email protected]> Signed-off-by: Zhang Changzhong <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: fec: ptp: remove unused variable 'ns' in fec_time_keep()Zhang Changzhong1-2/+1
Fixes the following W=1 kernel build warning(s): drivers/net/ethernet/freescale/fec_ptp.c:523:6: warning: variable 'ns' set but not used [-Wunused-but-set-variable] 523 | u64 ns; | ^~ After commit 6605b730c061 ("FEC: Add time stamping code and a PTP hardware clock"), variable 'ns' is never used in fec_time_keep(), so removing it to avoid build warning. Reported-by: Hulk Robot <[email protected]> Signed-off-by: Zhang Changzhong <[email protected]> Acked-by: Fugang Duan <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: dnet: remove unused variable 'tx_status 'in dnet_start_xmit()Zhang Changzhong1-4/+4
Fixes the following W=1 kernel build warning(s): drivers/net/ethernet/dnet.c:510:6: warning: variable 'tx_status' set but not used [-Wunused-but-set-variable] u32 tx_status, irq_enable; ^~~~~~~~~ After commit 4796417417a6 ("dnet: Dave DNET ethernet controller driver (updated)"), variable 'tx_status' is never used in dnet_start_xmit(), so removing it to avoid build warning. Reported-by: Hulk Robot <[email protected]> Signed-off-by: Zhang Changzhong <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: smc91x: convert tasklets to use new tasklet_setup() APIAllen Pais1-5/+5
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: silan: convert tasklets to use new tasklet_setup() APIAllen Pais1-5/+7
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14qed: convert tasklets to use new tasklet_setup() APIAllen Pais4-33/+12
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: nixge: convert tasklets to use new tasklet_setup() APIAllen Pais1-4/+3
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14nfp: convert tasklets to use new tasklet_setup() APIAllen Pais1-4/+3
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: natsemi: convert tasklets to use new tasklet_setup() APIAllen Pais1-4/+4
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: micrel: convert tasklets to use new tasklet_setup() APIAllen Pais2-17/+14
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: mlx: convert tasklets to use new tasklet_setup() APIAllen Pais8-20/+17
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: skge: convert tasklets to use new tasklet_setup() APIAllen Pais1-3/+3
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: jme: convert tasklets to use new tasklet_setup() APIAllen Pais1-24/+16
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14ibmvnic: convert tasklets to use new tasklet_setup() APIAllen Pais1-4/+3
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: ehea: convert tasklets to use new tasklet_setup() APIAllen Pais1-4/+3
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: hinic: convert tasklets to use new tasklet_setup() APIAllen Pais1-4/+3
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: sundance: convert tasklets to use new tasklet_setup() APIAllen Pais1-10/+11
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14chelsio: convert tasklets to use new tasklet_setup() APIAllen Pais3-22/+24
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14liquidio: convert tasklets to use new tasklet_setup() APIAllen Pais6-19/+18
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: macb: convert tasklets to use new tasklet_setup() APIAllen Pais1-4/+3
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14cnic: convert tasklets to use new tasklet_setup() APIAllen Pais1-10/+8
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: amd-xgbe: convert tasklets to use new tasklet_setup() APIAllen Pais3-22/+19
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14net: alteon: convert tasklets to use new tasklet_setup() APIAllen Pais2-5/+7
In preparation for unconditionally passing the struct tasklet_struct pointer to all tasklet callbacks, switch to using the new tasklet_setup() and from_tasklet() to pass the tasklet pointer explicitly. Signed-off-by: Romain Perier <[email protected]> Signed-off-by: Allen Pais <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2020-09-14i40e, xsk: move buffer allocation out of the Rx processing loopBjörn Töpel1-8/+4
Instead of checking in each iteration of the Rx packet processing loop, move the allocation out of the loop and do it once for each napi activation. For AF_XDP the rx_drop benchmark was improved by 6%. Signed-off-by: Björn Töpel <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Tony Nguyen <[email protected]>
2020-09-14i40e: use 16B HW descriptors instead of 32BBjörn Töpel7-17/+18
The i40e NIC supports two flavors of HW descriptors, 16 and 32 byte. The latter has, obviously, room for more offloading information. However, the only fields of the 32B HW descriptor that is being used by the driver, is also available in the 16B descriptor. In other words; Reading and writing 32 bytes instead of 16 byte is a waste of bus bandwidth. This commit starts using 16 byte descriptors instead of 32 byte descriptors. For AF_XDP the rx_drop benchmark was improved by 2%. Signed-off-by: Björn Töpel <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Tony Nguyen <[email protected]>
2020-09-14i40e, xsk: remove HW descriptor prefetch in AF_XDP pathBjörn Töpel3-13/+25
The software prefetching of HW descriptors has a negative impact on the performance. Therefore, it is now removed. Performance for the rx_drop benchmark increased with 2%. Signed-off-by: Björn Töpel <[email protected]> Tested-by: Aaron Brown <[email protected]> Signed-off-by: Tony Nguyen <[email protected]>
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