diff options
| author | Michael Chan <michael.chan@broadcom.com> | 2022-12-27 06:19:38 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-12-28 13:16:57 +0300 |
| commit | 9b3e607871ea5ee90f10f5be3965fc07f2aa3ef7 (patch) | |
| tree | 921d7b0a691b39675d46190967c7351e6037becb /drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c | |
| parent | bbfc17e50ba2ed18dfef46b1c433d50a58566bf1 (diff) | |
| download | linux-9b3e607871ea5ee90f10f5be3965fc07f2aa3ef7.tar.xz | |
bnxt_en: Fix XDP RX path
The XDP program can change the starting address of the RX data buffer and
this information needs to be passed back from bnxt_rx_xdp() to
bnxt_rx_pkt() for the XDP_PASS case so that the SKB can point correctly
to the modified buffer address. Add back the data_ptr parameter to
bnxt_rx_xdp() to make this work.
Fixes: b231c3f3414c ("bnxt: refactor bnxt_rx_xdp to separate xdp_init_buff/xdp_prepare_buff")
Reviewed-by: Andy Gospodarek <andrew.gospodarek@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c')
| -rw-r--r-- | drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c index 1847f191577d..2ceeaa818c1c 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c @@ -222,7 +222,8 @@ void bnxt_xdp_buff_frags_free(struct bnxt_rx_ring_info *rxr, * false - packet should be passed to the stack. */ bool bnxt_rx_xdp(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, u16 cons, - struct xdp_buff xdp, struct page *page, unsigned int *len, u8 *event) + struct xdp_buff xdp, struct page *page, u8 **data_ptr, + unsigned int *len, u8 *event) { struct bpf_prog *xdp_prog = READ_ONCE(rxr->xdp_prog); struct bnxt_tx_ring_info *txr; @@ -255,8 +256,10 @@ bool bnxt_rx_xdp(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, u16 cons, *event &= ~BNXT_RX_EVENT; *len = xdp.data_end - xdp.data; - if (orig_data != xdp.data) + if (orig_data != xdp.data) { offset = xdp.data - xdp.data_hard_start; + *data_ptr = xdp.data_hard_start + offset; + } switch (act) { case XDP_PASS: |