linux.git/drivers/net/ethernet/microchip, branch v5.17

net: sparx5: Add #include to remove warning

2022-02-28T11:34:26+00:00

main.h uses NUM_TARGETS from main_regs.h, but
the missing include never causes any errors
because everywhere main.h is (currently)
included, main_regs.h is included before.
But since it is dependent on main_regs.h
it should always be included.

Signed-off-by: Casper Andersson 
Reviewed-by: Joacim Zetterling 
Signed-off-by: David S. Miller

net: sparx5: Fix add vlan when invalid operation

2022-02-25T12:54:48+00:00

Check if operation is valid before changing any
settings in hardware. Otherwise it results in
changes being made despite it not being a valid
operation.

Fixes: 78eab33bb68b ("net: sparx5: add vlan support")

Signed-off-by: Casper Andersson 
Signed-off-by: David S. Miller

net: sparx5: Fix get_stat64 crash in tcpdump

2022-02-04T03:01:15+00:00

This problem was found with Sparx5 when the tcpdump tool requests the
do_get_stats64 (sparx5_get_stats64) statistic.

The portstats pointer was incorrectly incremented when fetching priority
based statistics.

Fixes: af4b11022e2d (net: sparx5: add ethtool configuration and statistics support)
Signed-off-by: Steen Hegelund 
Link: https://lore.kernel.org/r/20220203102900.528987-1-steen.hegelund@microchip.com
Signed-off-by: Jakub Kicinski

net: sparx5: do not refer to skb after passing it on

2022-02-02T17:07:22+00:00

Do not try to use any SKB fields after the packet has been passed up in the
receive stack.

Reported-by: kernel test robot 
Reported-by: Dan Carpenter 
Signed-off-by: Steen Hegelund 
Link: https://lore.kernel.org/r/20220202083039.3774851-1-steen.hegelund@microchip.com
Signed-off-by: Jakub Kicinski

net: lan966x: Fix sleep in atomic context when updating MAC table

2022-01-26T15:45:49+00:00

The function lan966x_mac_wait_for_completion is used to poll the status
of the MAC table using the function readx_poll_timeout. The problem with
this function is that is called also from atomic context. Therefore
update the function to use readx_poll_timeout_atomic.

Fixes: e18aba8941b40b ("net: lan966x: add mactable support")
Signed-off-by: Horatiu Vultur 
Signed-off-by: David S. Miller

net: lan966x: Fix sleep in atomic context when injecting frames

2022-01-26T15:45:49+00:00

On lan966x, when injecting a frame it was polling the register
QS_INJ_STATUS to see if it can continue with the injection of the frame.
The problem was that it was using readx_poll_timeout which could sleep
in atomic context.
This patch fixes this issue by using readx_poll_timeout_atomic.

Fixes: d28d6d2e37d10d ("net: lan966x: add port module support")
Signed-off-by: Horatiu Vultur 
Signed-off-by: David S. Miller

lan743x: Remove useless DMA-32 fallback configuration

2022-01-10T00:52:21+00:00

As stated in [1], dma_set_mask() with a 64-bit mask never fails if
dev->dma_mask is non-NULL.
So, if it fails, the 32 bits case will also fail for the same reason.

Simplify code and remove some dead code accordingly.

[1]: https://lkml.org/lkml/2021/6/7/398

Signed-off-by: Christophe JAILLET 
Link: https://lore.kernel.org/r/ef548716606f257939df9738a801f15b6edf2568.1641743405.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Jakub Kicinski

net: lan966x: Extend switchdev with mdb support

2022-01-05T11:25:13+00:00

Extend lan966x driver with mdb support by implementing the switchdev
calls: SWITCHDEV_OBJ_ID_PORT_MDB and SWITCHDEV_OBJ_ID_HOST_MDB.
It is allowed to add both ipv4/ipv6 entries and l2 entries. To add
ipv4/ipv6 entries is not required to use the PGID table while for l2
entries it is required. The PGID table is much smaller than MAC table
so only fewer l2 entries can be added.

Signed-off-by: Horatiu Vultur 
Signed-off-by: David S. Miller

net: lan966x: Add PGID_GP_START and PGID_GP_END

2022-01-05T11:25:13+00:00

The first entries in the PGID table are used by the front ports while
the last entries are used for different purposes like flooding mask,
copy to CPU, etc. So add these macros to define which entries can be
used for general purpose.

Signed-off-by: Horatiu Vultur 
Signed-off-by: David S. Miller

net: lan966x: Add function lan966x_mac_ip_learn()

2022-01-05T11:25:13+00:00

Extend mac functionality with the function lan966x_mac_ip_learn. This
function adds an entry in the MAC table for IP multicast addresses.
These entries can copy a frame to the CPU but also can forward on the
front ports.
This functionality is needed for mdb support. In case the CPU and some
of the front ports subscribe to an IP multicast address.

Signed-off-by: Horatiu Vultur 
Signed-off-by: David S. Miller