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tsnep: Add helper for RX XDP_RING_NEED_WAKEUP flag

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Similar chunk of code is used in tsnep_rx_poll_zc() and
tsnep_rx_reopen_xsk() to maintain the RX XDP_RING_NEED_WAKEUP flag.
Consolidate the code to common helper function.

Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Gerhard Engleder <gerhard@engleder-embedded.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Gerhard Engleder 2024-01-31 21:54:34 +01:00 committed by David S. Miller
parent 89304f91bf
commit 1e08223272
1 changed files with 11 additions and 12 deletions
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23
drivers/net/ethernet/engleder/tsnep_main.c
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@ -1260,6 +1260,14 @@ static int tsnep_rx_refill_zc(struct tsnep_rx *rx, int count, bool reuse)
return desc_refilled;
}
static void tsnep_xsk_rx_need_wakeup(struct tsnep_rx *rx, int desc_available)
{
if (desc_available)
xsk_set_rx_need_wakeup(rx->xsk_pool);
else
xsk_clear_rx_need_wakeup(rx->xsk_pool);
}
static bool tsnep_xdp_run_prog(struct tsnep_rx *rx, struct bpf_prog *prog,
struct xdp_buff *xdp, int *status,
struct netdev_queue *tx_nq, struct tsnep_tx *tx)
@ -1621,10 +1629,7 @@ static int tsnep_rx_poll_zc(struct tsnep_rx *rx, struct napi_struct *napi,
desc_available -= tsnep_rx_refill_zc(rx, desc_available, false);
if (xsk_uses_need_wakeup(rx->xsk_pool)) {
if (desc_available)
xsk_set_rx_need_wakeup(rx->xsk_pool);
else
xsk_clear_rx_need_wakeup(rx->xsk_pool);
tsnep_xsk_rx_need_wakeup(rx, desc_available);
return done;
}
@ -1769,14 +1774,8 @@ static void tsnep_rx_reopen_xsk(struct tsnep_rx *rx)
* first polling would be too late as need wakeup signalisation would
* be delayed for an indefinite time
*/
if (xsk_uses_need_wakeup(rx->xsk_pool)) {
int desc_available = tsnep_rx_desc_available(rx);
if (desc_available)
xsk_set_rx_need_wakeup(rx->xsk_pool);
else
xsk_clear_rx_need_wakeup(rx->xsk_pool);
}
if (xsk_uses_need_wakeup(rx->xsk_pool))
tsnep_xsk_rx_need_wakeup(rx, tsnep_rx_desc_available(rx));
}
static bool tsnep_pending(struct tsnep_queue *queue)