kernel/drivers/net/ethernet/sfc/ef100_netdev.c, branch linux-6.2.y

sfc: fix potential memleak in __ef100_hard_start_xmit()

2022-11-22T10:28:16Z

The __ef100_hard_start_xmit() returns NETDEV_TX_OK without freeing skb in error handling case, add dev_kfree_skb_any() to fix it. Fixes: 51b35a454efd ("sfc: skeleton EF100 PF driver") Signed-off-by: Zhang Changzhong Acked-by: Martin Habets Reviewed-by: Leon Romanovsky Link: https://lore.kernel.org/r/1668671409-10909-1-git-send-email-zhangchangzhong@huawei.com Signed-off-by: Paolo Abeni

sfc: bind blocks for TC offload on EF100

2022-09-28T08:43:22Z

Bind direct blocks for the MAE-admin PF and each VF representor. Currently these connect to a stub efx_tc_flower() that only returns -EOPNOTSUPP; subsequent patches will implement flower offloads to the Match-Action Engine. Signed-off-by: Edward Cree Signed-off-by: David S. Miller

sfc: insert default MAE rules to connect VFs to representors

2022-07-30T04:22:06Z

Default rules are low-priority switching rules which the hardware uses in the absence of higher-priority rules. Each representor requires a corresponding rule matching traffic from its representee VF and delivering to the PF (where a check on INGRESS_MPORT in __ef100_rx_packet() will direct it to the representor). No rule is required in the reverse direction, because representor TX uses a TX override descriptor to bypass the MAE and deliver directly to the VF. Since inserting any rule into the MAE disables the firmware's own default rules, also insert a pair of rules to connect the PF to the physical network port and vice-versa. Signed-off-by: Edward Cree Signed-off-by: Jakub Kicinski

sfc: attach/detach EF100 representors along with their owning PF

2022-07-22T11:50:06Z

Since representors piggy-back on the PF's queues for TX, they can only accept new TXes while the PF is up. Thus, any operation which detaches the PF must first detach all its VFreps. Signed-off-by: Edward Cree Signed-off-by: David S. Miller

sfc: hook up ef100 representor TX

2022-07-22T11:50:06Z

Implement .ndo_start_xmit() by calling into the parent PF's TX path. Signed-off-by: Edward Cree Signed-off-by: David S. Miller

sfc: add skeleton ef100 VF representors

2022-07-22T11:50:06Z

No net_device_ops yet, just a placeholder netdev created per VF. Signed-off-by: Edward Cree Signed-off-by: David S. Miller

sfc: Separate netdev probe/remove from PCI probe/remove

2022-06-29T12:40:47Z

The netdev probe will be used when moving from vDPA to EF100 BAR config. The netdev remove will be used when moving from EF100 to vDPA BAR config. In the process, change several log messages to pci_ instead of netif_ to remove the "(unregistered net_device)" text. Signed-off-by: Jonathan Cooper Co-developed-by: Martin Habets Signed-off-by: Martin Habets Signed-off-by: David S. Miller

sfc: Separate efx_nic memory from net_device memory

2022-06-29T12:40:47Z

As we have a lot of common code this applies to all NIC architectures. Signed-off-by: Jonathan Cooper Co-developed-by: Martin Habets Signed-off-by: Martin Habets Signed-off-by: David S. Miller

sfc: Encapsulate access to netdev_priv()

2022-06-29T12:40:47Z

Once we separate struct efx_nic memory from net_device memory the existing usage will have to change. Apart from the new function efx_netdev_priv() accesses have been changed using: sed -i 's/netdev_priv/efx_netdev_priv/' Signed-off-by: Jonathan Cooper Co-developed-by: Martin Habets Signed-off-by: Martin Habets Signed-off-by: David S. Miller

sfc: Add a PROBED state for EF100 VDPA use.

2022-06-29T12:40:46Z

For VDPA we need to tear down the driver to the point where it has various control channels like MCDI, but it no longer has a network device. This adds a state corresponding to that mode that will be used when VDPA support is added. Signed-off-by: Jonathan Cooper Co-developed-by: Martin Habets Signed-off-by: Martin Habets Signed-off-by: David S. Miller