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Currently the driver only supports 802.1Q VLAN insertion and stripping.
However, once Double VLAN Mode (DVM) is fully supported, then both 802.1Q
and 802.1ad VLAN insertion and stripping will be supported. Unfortunately
the VSI context parameters only allow for one VLAN ethertype at a time
for VLAN offloads so only one or the other VLAN ethertype offload can be
supported at once.
To support this, multiple changes are needed.
Rx path changes:
[1] In DVM, the Rx queue context l2tagsel field needs to be cleared so
the outermost tag shows up in the l2tag2_2nd field of the Rx flex
descriptor. In Single VLAN Mode (SVM), the l2tagsel field should remain
1 to support SVM configurations.
[2] Modify the ice_test_staterr() function to take a __le16 instead of
the ice_32b_rx_flex_desc union pointer so this function can be used for
both rx_desc->wb.status_error0 and rx_desc->wb.status_error1.
[3] Add the new inline function ice_get_vlan_tag_from_rx_desc() that
checks if there is a VLAN tag in l2tag1 or l2tag2_2nd.
[4] In ice_receive_skb(), add a check to see if NETIF_F_HW_VLAN_STAG_RX
is enabled in netdev->features. If it is, then this is the VLAN
ethertype that needs to be added to the stripping VLAN tag. Since
ice_fix_features() prevents CTAG_RX and STAG_RX from being enabled
simultaneously, the VLAN ethertype will only ever be 802.1Q or 802.1ad.
Tx path changes:
[1] In DVM, the VLAN tag needs to be placed in the l2tag2 field of the Tx
context descriptor. The new define ICE_TX_FLAGS_HW_OUTER_SINGLE_VLAN was
added to the list of tx_flags to handle this case.
[2] When the stack requests the VLAN tag to be offloaded on Tx, the
driver needs to set either ICE_TX_FLAGS_HW_OUTER_SINGLE_VLAN or
ICE_TX_FLAGS_HW_VLAN, so the tag is inserted in l2tag2 or l2tag1
respectively. To determine which location to use, set a bit in the Tx
ring flags field during ring allocation that can be used to determine
which field to use in the Tx descriptor. In DVM, always use l2tag2,
and in SVM, always use l2tag1.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Add a new outer_vlan_ops member to the ice_vsi structure as outer VLAN
ops are only available when the device is in Double VLAN Mode (DVM).
Depending on the VSI type, the requirements for what operations to
use/allow differ.
By default all VSI's have unsupported inner and outer VSI VLAN ops. This
implementation was chosen to prevent unexpected crashes due to null
pointer dereferences. Instead, if a VSI calls an unsupported op, it will
just return -EOPNOTSUPP.
Add implementations to support modifying outer VLAN fields for VSI
context. This includes the ability to modify VLAN stripping, insertion,
and the port VLAN based on the outer VLAN handling fields of the VSI
context.
These functions should only ever be used if DVM is enabled because that
means the firmware supports the outer VLAN fields in the VSI context. If
the device is in DVM, then always use the outer_vlan_ops, else use the
vlan_ops since the device is in Single VLAN Mode (SVM).
Also, move adding the untagged VLAN 0 filter from ice_vsi_setup() to
ice_vsi_vlan_setup() as the latter function is specific to the PF and
all other VSI types that need an untagged VLAN 0 filter already do this
in their specific flows. Without this change, Flow Director is failing
to initialize because it does not implement any VSI VLAN ops.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Current operations act on inner VLAN fields. To support double VLAN, outer
VLAN operations and functions will be implemented. Add the "inner" naming
to existing VLAN operations to distinguish them from the upcoming outer
values and functions. Some spacing adjustments are made to align
values.
Note that the inner is not talking about a tunneled VLAN, but the second
VLAN in the packet. For SVM the driver uses inner or single VLAN
filtering and offloads and in Double VLAN Mode the driver uses the
inner filtering and offloads for SR-IOV VFs in port VLANs in order to
support offloading the guest VLAN while a port VLAN is configured.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Currently the proto argument is unused. This is because the driver only
supports 802.1Q VLAN filtering. This policy is enforced via netdev
features that the driver sets up when configuring the netdev, so the
proto argument won't ever be anything other than 802.1Q. However, this
will allow for future iterations of the driver to seemlessly support
802.1ad filtering. Begin using the proto argument and extend the related
structures to support its use.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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The current vf->port_vlan_info variable is a packed u16 that contains
the port VLAN ID and QoS/prio value. This is fine, but changes are
incoming that allow for an 802.1ad port VLAN. Add flexibility by
changing the vf->port_vlan_info member to be an ice_vlan structure.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Add a new struct for VLAN related information. Currently this holds
VLAN ID and priority values, but will be expanded to hold TPID value.
This reduces the changes necessary if any other values are added in
future. Remove the action argument from these calls as it's always
ICE_FWD_VSI.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Incoming changes to support 802.1Q and/or 802.1ad VLAN filtering and
offloads require more flexibility when configuring VLANs. The VSI VLAN
interface will allow flexibility for configuring VLANs for all VSI
types. Add new files to separate the VSI VLAN ops and move functions to
make the code more organized.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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There are multiple places where VLAN 0 is being added. Create a function
to be called in order to minimize changes as the implementation is expanded
to support double VLAN and avoid duplicated code.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Add functions to configure Tx VLAN antispoof based on iproute
configuration and/or VLAN mode and VF driver support. This is needed
later so the driver can control when it can be configured. Also, add
functions that can be used to enable and disable MAC and VLAN
spoofcheck. Move spoofchk configuration during VSI setup into the
SR-IOV initialization path and into the post VSI rebuild flow for VF
VSIs.
Signed-off-by: Brett Creeley <brett.creeley@intel.com>
Tested-by: Gurucharan G <gurucharanx.g@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
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Provide generic selftest support. Tested with LAN9500 and LAN9512.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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do_div() does a 64-by-32 division.
When the divisor is u64, do_div() truncates it to 32 bits, this means it
can test non-zero and be truncated to zero for division.
fix do_div.cocci warning:
do_div() does a 64-by-32 division, please consider using div64_u64 instead.
Signed-off-by: Wang Qing <wangqing@vivo.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Now we can use the enetc_cbd_alloc_data_mem() to replace complicated DMA
data alloc method and CBDR memory basic seting.
Signed-off-by: Po Liu <po.liu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Separate the CBDR data memory alloc standalone. It is convenient for
other part loading, for example the ENETC QOS part.
Reported-and-suggested-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Signed-off-by: Po Liu <po.liu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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To replace the dma_map_single() stream DMA mapping with DMA coherent
method dma_alloc_coherent() which is more simple.
dma_map_single() found by Tim Gardner not proper. Suggested by Claudiu
Manoil and Jakub Kicinski to use dma_alloc_coherent(). Discussion at:
https://lore.kernel.org/netdev/AM9PR04MB8397F300DECD3C44D2EBD07796BD9@AM9PR04MB8397.eurprd04.prod.outlook.com/t/
Fixes: 888ae5a3952ba ("net: enetc: add tc flower psfp offload driver")
cc: Claudiu Manoil <claudiu.manoil@nxp.com>
Reported-by: Tim Gardner <tim.gardner@canonical.com>
Signed-off-by: Po Liu <po.liu@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds support for driver level TSO in the enetc driver using
the TSO API.
There is not much to say about this specific implementation. We are
using the usual tso_build_hdr(), tso_build_data() to create each data
segment, we create an array of S/G FDs where the first S/G entry is
referencing the header data and the remaining ones the data portion.
For the S/G Table buffer we use the same cache of buffers used on the
other non-GSO cases - dpaa2_eth_sgt_get() and dpaa2_eth_sgt_recycle().
We cannot keep a DMA coherent buffer for all the TSO headers because the
DPAA2 architecture does not work in a ring based fashion so we just
allocate a buffer each time.
Even with these limitations we get the following improvement in TCP
termination on the LX2160A SoC, on a single A72 core running at 2.2GHz.
before: 6.38Gbit/s
after: 8.48Gbit/s
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Up until now, the __dpaa2_eth_tx function used a single FD on the stack
to construct the structure to be enqueued. Since we are now preparing
the ground work to add support for TSO done in software at the driver
level, the same function needs to work with an array of FDs and enqueue
as many as the build_*_fd functions create.
Make the necessary adjustments in order to do this. These include:
keeping an array of FDs in a percpu structure, cleaning up the necessary
FDs before populating it and then, retrying the enqueue process up till
all the generated FDs were enqueued or until we reach the maximum number
retries.
This patch does not change the fact that only a single FD will result
from a __dpaa2_eth_tx call but rather just creates the necessary changes
for the next patch.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Instead of allocating memory for an S/G table each time a nonlinear skb
is processed, and then freeing it on the Tx confirmation path, use the
S/G table cache in order to reuse the memory.
For this to work we have to change the size of the cached buffers so
that it can hold the maximum number of scatterlist entries.
Other than that, each allocate/free call is replaced by a call to the
dpaa2_eth_sgt_get/dpaa2_eth_sgt_recycle functions, introduced in the
previous patch.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The dpaa2-eth driver uses in certain circumstances a buffer cache for
the S/G tables needed in case of a S/G FD. At the moment, the
interraction with the cache is open-coded and couldn't be reused easily.
Add two new functions - dpaa2_eth_sgt_get and dpaa2_eth_sgt_recycle -
which help with code reusability.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Instead of allocating memory and then manually aligning it to the
desired value use napi_alloc_frag_align() directly to streamline the
process.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In the next patches we'll be moving things arroung in the mentioned
function and also add some new variable declarations. Before all this,
cleanup the variable declaration order.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Data centric bridging designed to eliminate packet loss due to
queue overflow by adding enhancements to ethernet network such as
proprity flow control etc. This patch adds support for management
of Priority flow control(PFC) on Octeontx2 and CN10K interfaces.
To enable PFC for all priorities
dcb pfc set dev eth0 prio-pfc all:on/off
To enable PFC on selected priorites
dcb pfc set dev eth0 prio-pfc 0:on/off 1:on/off ..7:on/off
With the ntuple commands user can map Priority to receive queues.
On queue overflow NIX will assert backpressure such that PFC pause frames
are genarated with mapped priority.
To map priority 7 to Queue 1
ethtool -U eth0 flow-type ether dst xx:xx:xx:xx:xx:xx vlan 0xe00a
m 0x1fff queue 1
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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CN10K MAC block (RPM) and Octeontx2 MAC block (CGX) both supports
PFC flow control and 802.3X flow control pause frames.
Each MAC block supports max 4 LMACS and AF driver assigns same
(MAC,LMAC) to PF and its VFs. As PF and its share same (MAC,LMAC)
pair we need resource management to address below scenarios
1. Maintain PFC and 8023X pause frames mutually exclusive.
2. Reject disable flow control request if other PF or Vfs
enabled it.
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Prirority based flow control (802.1Qbb) mechanism is similar to
ethernet pause frames (802.3x) instead pausing all traffic on a link,
PFC allows user to selectively pause traffic according to its class.
Oceteontx2 MAC block (CGX) and CN10K Mac block (RPM) both supports
PFC. As upper layer mbox handler is same for both the MACs, this
patch configures PFC by calling apporopritate callbacks.
Signed-off-by: Sunil Kumar Kori <skori@marvell.com>
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Current implementation is such that 802.3x pause frames are
enabled by default. As CGX and RPM blocks support PFC
(priority flow control) also, instead of driver enabling one
between them enable them upon request from PF or its VFs.
Also add support to disable pause frames in driver unbind.
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Hardware interrupts are enabled during the pci probe, however,
they are not disabled during pci removal.
Disable all hardware interrupts during pci removal to avoid any
issues.
Fixes: e75377404726 ("amd-xgbe: Update PCI support to use new IRQ functions")
Suggested-by: Selwin Sebastian <Selwin.Sebastian@amd.com>
Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix loading of the driver when built as a module.
Fixes: f160e99462c6 ("net: phy: Add mdio-aspeed")
Signed-off-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Acked-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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veth being NETIF_F_LLTX enabled, we need to be more careful
whenever we read/write rq->rx_notify_masked.
BUG: KCSAN: data-race in veth_xmit / veth_xmit
write to 0xffff888133d9a9f8 of 1 bytes by task 23552 on cpu 0:
__veth_xdp_flush drivers/net/veth.c:269 [inline]
veth_xmit+0x307/0x470 drivers/net/veth.c:350
__netdev_start_xmit include/linux/netdevice.h:4683 [inline]
netdev_start_xmit include/linux/netdevice.h:4697 [inline]
xmit_one+0x105/0x2f0 net/core/dev.c:3473
dev_hard_start_xmit net/core/dev.c:3489 [inline]
__dev_queue_xmit+0x86d/0xf90 net/core/dev.c:4116
dev_queue_xmit+0x13/0x20 net/core/dev.c:4149
br_dev_queue_push_xmit+0x3ce/0x430 net/bridge/br_forward.c:53
NF_HOOK include/linux/netfilter.h:307 [inline]
br_forward_finish net/bridge/br_forward.c:66 [inline]
NF_HOOK include/linux/netfilter.h:307 [inline]
__br_forward+0x2e4/0x400 net/bridge/br_forward.c:115
br_flood+0x521/0x5c0 net/bridge/br_forward.c:242
br_dev_xmit+0x8b6/0x960
__netdev_start_xmit include/linux/netdevice.h:4683 [inline]
netdev_start_xmit include/linux/netdevice.h:4697 [inline]
xmit_one+0x105/0x2f0 net/core/dev.c:3473
dev_hard_start_xmit net/core/dev.c:3489 [inline]
__dev_queue_xmit+0x86d/0xf90 net/core/dev.c:4116
dev_queue_xmit+0x13/0x20 net/core/dev.c:4149
neigh_hh_output include/net/neighbour.h:525 [inline]
neigh_output include/net/neighbour.h:539 [inline]
ip_finish_output2+0x6f8/0xb70 net/ipv4/ip_output.c:228
ip_finish_output+0xfb/0x240 net/ipv4/ip_output.c:316
NF_HOOK_COND include/linux/netfilter.h:296 [inline]
ip_output+0xf3/0x1a0 net/ipv4/ip_output.c:430
dst_output include/net/dst.h:451 [inline]
ip_local_out net/ipv4/ip_output.c:126 [inline]
ip_send_skb+0x6e/0xe0 net/ipv4/ip_output.c:1570
udp_send_skb+0x641/0x880 net/ipv4/udp.c:967
udp_sendmsg+0x12ea/0x14c0 net/ipv4/udp.c:1254
inet_sendmsg+0x5f/0x80 net/ipv4/af_inet.c:819
sock_sendmsg_nosec net/socket.c:705 [inline]
sock_sendmsg net/socket.c:725 [inline]
____sys_sendmsg+0x39a/0x510 net/socket.c:2413
___sys_sendmsg net/socket.c:2467 [inline]
__sys_sendmmsg+0x267/0x4c0 net/socket.c:2553
__do_sys_sendmmsg net/socket.c:2582 [inline]
__se_sys_sendmmsg net/socket.c:2579 [inline]
__x64_sys_sendmmsg+0x53/0x60 net/socket.c:2579
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
read to 0xffff888133d9a9f8 of 1 bytes by task 23563 on cpu 1:
__veth_xdp_flush drivers/net/veth.c:268 [inline]
veth_xmit+0x2d6/0x470 drivers/net/veth.c:350
__netdev_start_xmit include/linux/netdevice.h:4683 [inline]
netdev_start_xmit include/linux/netdevice.h:4697 [inline]
xmit_one+0x105/0x2f0 net/core/dev.c:3473
dev_hard_start_xmit net/core/dev.c:3489 [inline]
__dev_queue_xmit+0x86d/0xf90 net/core/dev.c:4116
dev_queue_xmit+0x13/0x20 net/core/dev.c:4149
br_dev_queue_push_xmit+0x3ce/0x430 net/bridge/br_forward.c:53
NF_HOOK include/linux/netfilter.h:307 [inline]
br_forward_finish net/bridge/br_forward.c:66 [inline]
NF_HOOK include/linux/netfilter.h:307 [inline]
__br_forward+0x2e4/0x400 net/bridge/br_forward.c:115
br_flood+0x521/0x5c0 net/bridge/br_forward.c:242
br_dev_xmit+0x8b6/0x960
__netdev_start_xmit include/linux/netdevice.h:4683 [inline]
netdev_start_xmit include/linux/netdevice.h:4697 [inline]
xmit_one+0x105/0x2f0 net/core/dev.c:3473
dev_hard_start_xmit net/core/dev.c:3489 [inline]
__dev_queue_xmit+0x86d/0xf90 net/core/dev.c:4116
dev_queue_xmit+0x13/0x20 net/core/dev.c:4149
neigh_hh_output include/net/neighbour.h:525 [inline]
neigh_output include/net/neighbour.h:539 [inline]
ip_finish_output2+0x6f8/0xb70 net/ipv4/ip_output.c:228
ip_finish_output+0xfb/0x240 net/ipv4/ip_output.c:316
NF_HOOK_COND include/linux/netfilter.h:296 [inline]
ip_output+0xf3/0x1a0 net/ipv4/ip_output.c:430
dst_output include/net/dst.h:451 [inline]
ip_local_out net/ipv4/ip_output.c:126 [inline]
ip_send_skb+0x6e/0xe0 net/ipv4/ip_output.c:1570
udp_send_skb+0x641/0x880 net/ipv4/udp.c:967
udp_sendmsg+0x12ea/0x14c0 net/ipv4/udp.c:1254
inet_sendmsg+0x5f/0x80 net/ipv4/af_inet.c:819
sock_sendmsg_nosec net/socket.c:705 [inline]
sock_sendmsg net/socket.c:725 [inline]
____sys_sendmsg+0x39a/0x510 net/socket.c:2413
___sys_sendmsg net/socket.c:2467 [inline]
__sys_sendmmsg+0x267/0x4c0 net/socket.c:2553
__do_sys_sendmmsg net/socket.c:2582 [inline]
__se_sys_sendmmsg net/socket.c:2579 [inline]
__x64_sys_sendmmsg+0x53/0x60 net/socket.c:2579
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x44/0xd0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x44/0xae
value changed: 0x00 -> 0x01
Reported by Kernel Concurrency Sanitizer on:
CPU: 1 PID: 23563 Comm: syz-executor.5 Not tainted 5.17.0-rc2-syzkaller-00064-gc36c04c2e132 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Fixes: 948d4f214fde ("veth: Add driver XDP")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Toshiaki Makita <makita.toshiaki@lab.ntt.co.jp>
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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-queue
Tony Nguyen says:
====================
40GbE Intel Wired LAN Driver Updates 2022-02-08
Joe Damato says:
This patch set makes several updates to the i40e driver stats collection
and reporting code to help users of i40e get a better sense of how the
driver is performing and interacting with the rest of the kernel.
These patches include some new stats (like waived and busy) which were
inspired by other drivers that track stats using the same nomenclature.
The new stats and an existing stat, rx_reuse, are now accessible with
ethtool to make harvesting this data more convenient for users.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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netvsc_device_remove() calls vunmap() inside which should not be
called in the interrupt context. Current code calls hv_unmap_memory()
in the free_netvsc_device() which is rcu callback and maybe called
in the interrupt context. This will trigger BUG_ON(in_interrupt())
in the vunmap(). Fix it via moving hv_unmap_memory() to netvsc_device_
remove().
Fixes: 846da38de0e8 ("net: netvsc: Add Isolation VM support for netvsc driver")
Signed-off-by: Tianyu Lan <Tianyu.Lan@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue
Tony Nguyen says:
====================
1GbE Intel Wired LAN Driver Updates 2022-02-07
Corinna Vinschen says:
Fix the kernel warning "Missing unregister, handled but fix driver"
when running, e.g.,
$ ethtool -G eth0 rx 1024
on igc. Remove memset hack from igb and align igb code to igc.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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When looking for a global mac index the extra NFP_TUN_PRE_TUN_IDX_BIT
that gets set if nfp_flower_is_supported_bridge is true is not taken
into account. Consequently the path that should release the ida_index
in cleanup is never triggered, causing messages like:
nfp 0000:02:00.0: nfp: Failed to offload MAC on br-ex.
nfp 0000:02:00.0: nfp: Failed to offload MAC on br-ex.
nfp 0000:02:00.0: nfp: Failed to offload MAC on br-ex.
after NFP_MAX_MAC_INDEX number of reconfigs. Ultimately this lead to
new tunnel flows not being offloaded.
Fix this by unsetting the NFP_TUN_PRE_TUN_IDX_BIT before checking if
the port is of type OTHER.
Fixes: 2e0bc7f3cb55 ("nfp: flower: encode mac indexes with pre-tunnel rule check")
Signed-off-by: Louis Peens <louis.peens@corigine.com>
Signed-off-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20220208101453.321949-1-simon.horman@corigine.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The LiteX driver uses devm io function API which
needs HAS_IOMEM enabled, so add the dependency on HAS_IOMEM.
Fixes: ee7da21ac4c3 ("net: Add driver for LiteX's LiteETH network interface")
Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Link: https://lore.kernel.org/r/20220208013308.6563-1-cai.huoqing@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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cleanup_net() is competing with other rtnl users.
Batching bond_net_exit() factorizes all rtnl acquistions
to a single one, giving chance for cleanup_net()
to progress much faster, holding rtnl a bit longer.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Jay Vosburgh <j.vosburgh@gmail.com>
Cc: Veaceslav Falico <vfalico@gmail.com>
Cc: Andy Gospodarek <andy@greyhouse.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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If __ibmvnic_open() encounters an error such as when setting link state,
it calls release_resources() which frees the napi structures needlessly.
Instead, have __ibmvnic_open() only clean up the work it did so far (i.e.
disable napi and irqs) and leave the rest to the callers.
If caller of __ibmvnic_open() is ibmvnic_open(), it should release the
resources immediately. If the caller is do_reset() or do_hard_reset(),
they will release the resources on the next reset.
This fixes following crash that occurred when running the drmgr command
several times to add/remove a vnic interface:
[102056] ibmvnic 30000003 env3: Disabling rx_scrq[6] irq
[102056] ibmvnic 30000003 env3: Disabling rx_scrq[7] irq
[102056] ibmvnic 30000003 env3: Replenished 8 pools
Kernel attempted to read user page (10) - exploit attempt? (uid: 0)
BUG: Kernel NULL pointer dereference on read at 0x00000010
Faulting instruction address: 0xc000000000a3c840
Oops: Kernel access of bad area, sig: 11 [#1]
LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries
...
CPU: 9 PID: 102056 Comm: kworker/9:2 Kdump: loaded Not tainted 5.16.0-rc5-autotest-g6441998e2e37 #1
Workqueue: events_long __ibmvnic_reset [ibmvnic]
NIP: c000000000a3c840 LR: c0080000029b5378 CTR: c000000000a3c820
REGS: c0000000548e37e0 TRAP: 0300 Not tainted (5.16.0-rc5-autotest-g6441998e2e37)
MSR: 8000000000009033 <SF,EE,ME,IR,DR,RI,LE> CR: 28248484 XER: 00000004
CFAR: c0080000029bdd24 DAR: 0000000000000010 DSISR: 40000000 IRQMASK: 0
GPR00: c0080000029b55d0 c0000000548e3a80 c0000000028f0200 0000000000000000
...
NIP [c000000000a3c840] napi_enable+0x20/0xc0
LR [c0080000029b5378] __ibmvnic_open+0xf0/0x430 [ibmvnic]
Call Trace:
[c0000000548e3a80] [0000000000000006] 0x6 (unreliable)
[c0000000548e3ab0] [c0080000029b55d0] __ibmvnic_open+0x348/0x430 [ibmvnic]
[c0000000548e3b40] [c0080000029bcc28] __ibmvnic_reset+0x500/0xdf0 [ibmvnic]
[c0000000548e3c60] [c000000000176228] process_one_work+0x288/0x570
[c0000000548e3d00] [c000000000176588] worker_thread+0x78/0x660
[c0000000548e3da0] [c0000000001822f0] kthread+0x1c0/0x1d0
[c0000000548e3e10] [c00000000000cf64] ret_from_kernel_thread+0x5c/0x64
Instruction dump:
7d2948f8 792307e0 4e800020 60000000 3c4c01eb 384239e0 f821ffd1 39430010
38a0fff6 e92d1100 f9210028 39200000 <e9030010> f9010020 60420000 e9210020
---[ end trace 5f8033b08fd27706 ]---
Fixes: ed651a10875f ("ibmvnic: Updated reset handling")
Reported-by: Abdul Haleem <abdhalee@linux.vnet.ibm.com>
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.ibm.com>
Reviewed-by: Dany Madden <drt@linux.ibm.com>
Link: https://lore.kernel.org/r/20220208001918.900602-1-sukadev@linux.ibm.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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As explained in commits:
74b6d7d13307 ("net: dsa: realtek: register the MDIO bus under devres")
5135e96a3dd2 ("net: dsa: don't allocate the slave_mii_bus using devres")
mdiobus_free() will panic when called from devm_mdiobus_free() <-
devres_release_all() <- __device_release_driver(), and that mdiobus was
not previously unregistered.
The GSWIP switch is a platform device, so the initial set of constraints
that I thought would cause this (I2C or SPI buses which call ->remove on
->shutdown) do not apply. But there is one more which applies here.
If the DSA master itself is on a bus that calls ->remove from ->shutdown
(like dpaa2-eth, which is on the fsl-mc bus), there is a device link
between the switch and the DSA master, and device_links_unbind_consumers()
will unbind the GSWIP switch driver on shutdown.
So the same treatment must be applied to all DSA switch drivers, which
is: either use devres for both the mdiobus allocation and registration,
or don't use devres at all.
The gswip driver has the code structure in place for orderly mdiobus
removal, so just replace devm_mdiobus_alloc() with the non-devres
variant, and add manual free where necessary, to ensure that we don't
let devres free a still-registered bus.
Fixes: ac3a68d56651 ("net: phy: don't abuse devres in devm_mdiobus_register()")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
Nobody in this driver calls mdiobus_unregister(), which is necessary if
mdiobus_register() completes successfully. So if the devres callbacks
that free the mdiobus get invoked (this is the case when unbinding the
driver), mdiobus_free() will BUG if the mdiobus is still registered,
which it is.
My speculation is that this is due to the fact that prior to commit
ac3a68d56651 ("net: phy: don't abuse devres in devm_mdiobus_register()")
from June 2020, _devm_mdiobus_free() used to call mdiobus_unregister().
But at the time that the mt7530 support was introduced in May 2021, the
API was already changed. It's therefore likely that the blamed patch was
developed on an older tree, and incorrectly adapted to net-next. This
makes the Fixes: tag correct.
Fix the problem by using the devres variant of mdiobus_register.
Fixes: ba751e28d442 ("net: dsa: mt7530: add interrupt support")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
As explained in commits:
74b6d7d13307 ("net: dsa: realtek: register the MDIO bus under devres")
5135e96a3dd2 ("net: dsa: don't allocate the slave_mii_bus using devres")
mdiobus_free() will panic when called from devm_mdiobus_free() <-
devres_release_all() <- __device_release_driver(), and that mdiobus was
not previously unregistered.
The Seville VSC9959 switch is a platform device, so the initial set of
constraints that I thought would cause this (I2C or SPI buses which call
->remove on ->shutdown) do not apply. But there is one more which
applies here.
If the DSA master itself is on a bus that calls ->remove from ->shutdown
(like dpaa2-eth, which is on the fsl-mc bus), there is a device link
between the switch and the DSA master, and device_links_unbind_consumers()
will unbind the seville switch driver on shutdown.
So the same treatment must be applied to all DSA switch drivers, which
is: either use devres for both the mdiobus allocation and registration,
or don't use devres at all.
The seville driver has a code structure that could accommodate both the
mdiobus_unregister and mdiobus_free calls, but it has an external
dependency upon mscc_miim_setup() from mdio-mscc-miim.c, which calls
devm_mdiobus_alloc_size() on its behalf. So rather than restructuring
that, and exporting yet one more symbol mscc_miim_teardown(), let's work
with devres and replace of_mdiobus_register with the devres variant.
When we use all-devres, we can ensure that devres doesn't free a
still-registered bus (it either runs both callbacks, or none).
Fixes: ac3a68d56651 ("net: phy: don't abuse devres in devm_mdiobus_register()")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
As explained in commits:
74b6d7d13307 ("net: dsa: realtek: register the MDIO bus under devres")
5135e96a3dd2 ("net: dsa: don't allocate the slave_mii_bus using devres")
mdiobus_free() will panic when called from devm_mdiobus_free() <-
devres_release_all() <- __device_release_driver(), and that mdiobus was
not previously unregistered.
The Felix VSC9959 switch is a PCI device, so the initial set of
constraints that I thought would cause this (I2C or SPI buses which call
->remove on ->shutdown) do not apply. But there is one more which
applies here.
If the DSA master itself is on a bus that calls ->remove from ->shutdown
(like dpaa2-eth, which is on the fsl-mc bus), there is a device link
between the switch and the DSA master, and device_links_unbind_consumers()
will unbind the felix switch driver on shutdown.
So the same treatment must be applied to all DSA switch drivers, which
is: either use devres for both the mdiobus allocation and registration,
or don't use devres at all.
The felix driver has the code structure in place for orderly mdiobus
removal, so just replace devm_mdiobus_alloc_size() with the non-devres
variant, and add manual free where necessary, to ensure that we don't
let devres free a still-registered bus.
Fixes: ac3a68d56651 ("net: phy: don't abuse devres in devm_mdiobus_register()")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
As explained in commits:
74b6d7d13307 ("net: dsa: realtek: register the MDIO bus under devres")
5135e96a3dd2 ("net: dsa: don't allocate the slave_mii_bus using devres")
mdiobus_free() will panic when called from devm_mdiobus_free() <-
devres_release_all() <- __device_release_driver(), and that mdiobus was
not previously unregistered.
The Starfighter 2 is a platform device, so the initial set of
constraints that I thought would cause this (I2C or SPI buses which call
->remove on ->shutdown) do not apply. But there is one more which
applies here.
If the DSA master itself is on a bus that calls ->remove from ->shutdown
(like dpaa2-eth, which is on the fsl-mc bus), there is a device link
between the switch and the DSA master, and device_links_unbind_consumers()
will unbind the bcm_sf2 switch driver on shutdown.
So the same treatment must be applied to all DSA switch drivers, which
is: either use devres for both the mdiobus allocation and registration,
or don't use devres at all.
The bcm_sf2 driver has the code structure in place for orderly mdiobus
removal, so just replace devm_mdiobus_alloc() with the non-devres
variant, and add manual free where necessary, to ensure that we don't
let devres free a still-registered bus.
Fixes: ac3a68d56651 ("net: phy: don't abuse devres in devm_mdiobus_register()")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
As explained in commits:
74b6d7d13307 ("net: dsa: realtek: register the MDIO bus under devres")
5135e96a3dd2 ("net: dsa: don't allocate the slave_mii_bus using devres")
mdiobus_free() will panic when called from devm_mdiobus_free() <-
devres_release_all() <- __device_release_driver(), and that mdiobus was
not previously unregistered.
The ar9331 is an MDIO device, so the initial set of constraints that I
thought would cause this (I2C or SPI buses which call ->remove on
->shutdown) do not apply. But there is one more which applies here.
If the DSA master itself is on a bus that calls ->remove from ->shutdown
(like dpaa2-eth, which is on the fsl-mc bus), there is a device link
between the switch and the DSA master, and device_links_unbind_consumers()
will unbind the ar9331 switch driver on shutdown.
So the same treatment must be applied to all DSA switch drivers, which
is: either use devres for both the mdiobus allocation and registration,
or don't use devres at all.
The ar9331 driver doesn't have a complex code structure for mdiobus
removal, so just replace of_mdiobus_register with the devres variant in
order to be all-devres and ensure that we don't free a still-registered
bus.
Fixes: ac3a68d56651 ("net: phy: don't abuse devres in devm_mdiobus_register()")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
As explained in commits:
74b6d7d13307 ("net: dsa: realtek: register the MDIO bus under devres")
5135e96a3dd2 ("net: dsa: don't allocate the slave_mii_bus using devres")
mdiobus_free() will panic when called from devm_mdiobus_free() <-
devres_release_all() <- __device_release_driver(), and that mdiobus was
not previously unregistered.
The mv88e6xxx is an MDIO device, so the initial set of constraints that
I thought would cause this (I2C or SPI buses which call ->remove on
->shutdown) do not apply. But there is one more which applies here.
If the DSA master itself is on a bus that calls ->remove from ->shutdown
(like dpaa2-eth, which is on the fsl-mc bus), there is a device link
between the switch and the DSA master, and device_links_unbind_consumers()
will unbind the Marvell switch driver on shutdown.
systemd-shutdown[1]: Powering off.
mv88e6085 0x0000000008b96000:00 sw_gl0: Link is Down
fsl-mc dpbp.9: Removing from iommu group 7
fsl-mc dpbp.8: Removing from iommu group 7
------------[ cut here ]------------
kernel BUG at drivers/net/phy/mdio_bus.c:677!
Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
Modules linked in:
CPU: 0 PID: 1 Comm: systemd-shutdow Not tainted 5.16.5-00040-gdc05f73788e5 #15
pc : mdiobus_free+0x44/0x50
lr : devm_mdiobus_free+0x10/0x20
Call trace:
mdiobus_free+0x44/0x50
devm_mdiobus_free+0x10/0x20
devres_release_all+0xa0/0x100
__device_release_driver+0x190/0x220
device_release_driver_internal+0xac/0xb0
device_links_unbind_consumers+0xd4/0x100
__device_release_driver+0x4c/0x220
device_release_driver_internal+0xac/0xb0
device_links_unbind_consumers+0xd4/0x100
__device_release_driver+0x94/0x220
device_release_driver+0x28/0x40
bus_remove_device+0x118/0x124
device_del+0x174/0x420
fsl_mc_device_remove+0x24/0x40
__fsl_mc_device_remove+0xc/0x20
device_for_each_child+0x58/0xa0
dprc_remove+0x90/0xb0
fsl_mc_driver_remove+0x20/0x5c
__device_release_driver+0x21c/0x220
device_release_driver+0x28/0x40
bus_remove_device+0x118/0x124
device_del+0x174/0x420
fsl_mc_bus_remove+0x80/0x100
fsl_mc_bus_shutdown+0xc/0x1c
platform_shutdown+0x20/0x30
device_shutdown+0x154/0x330
kernel_power_off+0x34/0x6c
__do_sys_reboot+0x15c/0x250
__arm64_sys_reboot+0x20/0x30
invoke_syscall.constprop.0+0x4c/0xe0
do_el0_svc+0x4c/0x150
el0_svc+0x24/0xb0
el0t_64_sync_handler+0xa8/0xb0
el0t_64_sync+0x178/0x17c
So the same treatment must be applied to all DSA switch drivers, which
is: either use devres for both the mdiobus allocation and registration,
or don't use devres at all.
The Marvell driver already has a good structure for mdiobus removal, so
just plug in mdiobus_free and get rid of devres.
Fixes: ac3a68d56651 ("net: phy: don't abuse devres in devm_mdiobus_register()")
Reported-by: Rafael Richter <Rafael.Richter@gin.de>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Tested-by: Daniel Klauer <daniel.klauer@gin.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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When 803.2ad mode enables a participating port, it should update
the slave-array. I have observed that the member links are participating
and are part of the active aggregator while the traffic is egressing via
only one member link (in a case where two links are participating). Via
kprobes I discovered that slave-arr has only one link added while
the other participating link wasn't part of the slave-arr.
I couldn't see what caused that situation but the simple code-walk
through provided me hints that the enable_port wasn't always associated
with the slave-array update.
Fixes: ee6377147409 ("bonding: Simplify the xmit function for modes that use xmit_hash")
Signed-off-by: Mahesh Bandewar <maheshb@google.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Link: https://lore.kernel.org/r/20220207222901.1795287-1-maheshb@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
This caused a significant performance degredation when using generic XDP
with multiple queues.
Fixes: f5cedc84a30d2 ("gve: Add transmit and receive support")
Signed-off-by: Tao Liu <xliutaox@google.com>
Link: https://lore.kernel.org/r/20220207175901.2486596-1-jeroendb@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
This NIC does not support TSO, it is very unlikely it would
have to send packets with many fragments.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20220208004855.1887345-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/linux
Nguyen, Anthony L says:
====================
iwl-next Intel Wired LAN Driver Updates 2022-02-07
Dave adds support for ice driver to provide DSCP QoS mappings to irdma
driver.
[1] https://lore.kernel.org/netdev/20220202191921.1638-1-shiraz.saleem@intel.com/
* 'iwl-next' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/linux:
ice: add support for DSCP QoS for IDC
====================
Link: https://lore.kernel.org/r/20220207235921.1303522-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
|
|
In some cases, pages cannot be reused by i40e because the page is busy. Add
a counter for this event.
Busy page count is accessible via ethtool.
Signed-off-by: Joe Damato <jdamato@fastly.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
|
|
In some cases, pages can not be reused because they are not associated with
the correct NUMA zone. Knowing how often pages are waived helps users to
understand the interaction between the driver's memory usage and their
system.
Pass rx_stats through to i40e_can_reuse_rx_page to allow tracking when
pages are waived.
The page waive count is accessible via ethtool.
Signed-off-by: Joe Damato <jdamato@fastly.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
|
|
Add a counter for new page allocations in the i40e RX path. This stat is
accessible with ethtool.
Signed-off-by: Joe Damato <jdamato@fastly.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
|
|
rx page reuse was already being tracked by the i40e driver per RX ring.
Aggregate the counts and make them accessible via ethtool.
Signed-off-by: Joe Damato <jdamato@fastly.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
|
|
Page reuse was being tracked from two locations:
- i40e_reuse_rx_page (via 40e_clean_rx_irq), and
- i40e_alloc_mapped_page
Remove the double count and only count reuse from i40e_alloc_mapped_page
when the page is about to be reused.
Signed-off-by: Joe Damato <jdamato@fastly.com>
Tested-by: Dave Switzer <david.switzer@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
|
