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authorJesper Dangaard Brouer <brouer@redhat.com>2020-05-14 12:49:07 +0200
committerAlexei Starovoitov <ast@kernel.org>2020-05-14 21:21:54 -0700
commit63fe91ab3d1c5c0b4497b993b8eeaa54f6688d53 (patch)
tree5c83a01696e65ccabcc69d6705ab08c0cae10c4d /drivers/net/ethernet/broadcom
parentf95f0f95cfb7f180ed7571d4915432d5098df7ec (diff)
bnxt: Add XDP frame size to driver
This driver uses full PAGE_SIZE pages when XDP is enabled. In case of XDP uses driver uses __bnxt_alloc_rx_page which does full page DMA-map. Thus, xdp_adjust_tail grow is DMA compliant for XDP_TX action that does DMA-sync. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Reviewed-by: Andy Gospodarek <gospo@broadcom.com> Cc: Michael Chan <michael.chan@broadcom.com> Cc: Andy Gospodarek <andrew.gospodarek@broadcom.com> Link: https://lore.kernel.org/bpf/158945334769.97035.13437970179897613984.stgit@firesoul
Diffstat (limited to 'drivers/net/ethernet/broadcom')
-rw-r--r--drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
index c6f6f2033880..5e3b4a3b69ea 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
@@ -138,6 +138,7 @@ bool bnxt_rx_xdp(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, u16 cons,
xdp_set_data_meta_invalid(&xdp);
xdp.data_end = *data_ptr + *len;
xdp.rxq = &rxr->xdp_rxq;
+ xdp.frame_sz = PAGE_SIZE; /* BNXT_RX_PAGE_MODE(bp) when XDP enabled */
orig_data = xdp.data;
rcu_read_lock();