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bnxt_en: setup xdp_rxq_info 

Driver hook points for xdp_rxq_info:
 * reg  : bnxt_alloc_rx_rings
 * unreg: bnxt_free_rx_rings

This driver should be updated to re-register when changing
allocation mode of RX rings.

Tested on actual hardware.

Cc: Andy Gospodarek <andy@greyhouse.net>
Cc: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Jesper Dangaard Brouer 2018-01-03 11:25:44 +01:00 committed by Alexei Starovoitov
parent ae75415de1
commit 96a8604f95
3 changed files with 13 additions and 0 deletions
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10
drivers/net/ethernet/broadcom/bnxt/bnxt.c
View File

@ -2247,6 +2247,9 @@ static void bnxt_free_rx_rings(struct bnxt *bp)
if (rxr->xdp_prog)
bpf_prog_put(rxr->xdp_prog);
if (xdp_rxq_info_is_reg(&rxr->xdp_rxq))
xdp_rxq_info_unreg(&rxr->xdp_rxq);
kfree(rxr->rx_tpa);
rxr->rx_tpa = NULL;
@ -2280,6 +2283,10 @@ static int bnxt_alloc_rx_rings(struct bnxt *bp)
ring = &rxr->rx_ring_struct;
rc = xdp_rxq_info_reg(&rxr->xdp_rxq, bp->dev, i);
if (rc < 0)
return rc;
rc = bnxt_alloc_ring(bp, ring);
if (rc)
return rc;
@ -2834,6 +2841,9 @@ void bnxt_set_ring_params(struct bnxt *bp)
bp->cp_ring_mask = bp->cp_bit - 1;
}
/* Changing allocation mode of RX rings.
* TODO: Update when extending xdp_rxq_info to support allocation modes.
*/
int bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode)
{
if (page_mode) {

2
drivers/net/ethernet/broadcom/bnxt/bnxt.h
View File

@ -23,6 +23,7 @@
#include <net/devlink.h>
#include <net/dst_metadata.h>
#include <net/switchdev.h>
#include <net/xdp.h>
struct tx_bd {
__le32 tx_bd_len_flags_type;
@ -664,6 +665,7 @@ struct bnxt_rx_ring_info {
struct bnxt_ring_struct rx_ring_struct;
struct bnxt_ring_struct rx_agg_ring_struct;
struct xdp_rxq_info xdp_rxq;
};
struct bnxt_cp_ring_info {

1
drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
View File

@ -96,6 +96,7 @@ bool bnxt_rx_xdp(struct bnxt *bp, struct bnxt_rx_ring_info *rxr, u16 cons,
xdp.data = *data_ptr;
xdp_set_data_meta_invalid(&xdp);
xdp.data_end = *data_ptr + *len;
xdp.rxq = &rxr->xdp_rxq;
orig_data = xdp.data;
mapping = rx_buf->mapping - bp->rx_dma_offset;