From: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
To: bpf@vger.kernel.org, ast@kernel.org, daniel@iogearbox.net,
magnus.karlsson@intel.com, bjorn@kernel.org
Cc: netdev@vger.kernel.org, brouer@redhat.com, maximmi@nvidia.com,
alexandr.lobakin@intel.com,
Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Subject: [PATCH bpf-next 09/10] ice: xsk: avoid refilling single Rx descriptors
Date: Tue, 5 Apr 2022 13:06:30 +0200 [thread overview]
Message-ID: <20220405110631.404427-10-maciej.fijalkowski@intel.com> (raw)
In-Reply-To: <20220405110631.404427-1-maciej.fijalkowski@intel.com>
Call alloc Rx routine for ZC driver only when the amount of unallocated
descriptors exceeds given threshold.
Signed-off-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
---
drivers/net/ethernet/intel/ice/ice_xsk.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c
index 272c0daf9ed3..143f6b6937bd 100644
--- a/drivers/net/ethernet/intel/ice/ice_xsk.c
+++ b/drivers/net/ethernet/intel/ice/ice_xsk.c
@@ -581,6 +581,7 @@ int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget)
unsigned int xdp_xmit = 0;
struct bpf_prog *xdp_prog;
bool failure = false;
+ int entries_to_alloc;
/* ZC patch is enabled only when XDP program is set,
* so here it can not be NULL
@@ -673,7 +674,9 @@ int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget)
ice_receive_skb(rx_ring, skb, vlan_tag);
}
- failure |= !ice_alloc_rx_bufs_zc(rx_ring, ICE_DESC_UNUSED(rx_ring));
+ entries_to_alloc = ICE_DESC_UNUSED(rx_ring);
+ if (entries_to_alloc > ICE_RING_QUARTER(rx_ring))
+ failure |= !ice_alloc_rx_bufs_zc(rx_ring, entries_to_alloc);
ice_finalize_xdp_rx(xdp_ring, xdp_xmit);
ice_update_rx_ring_stats(rx_ring, total_rx_packets, total_rx_bytes);
--
2.33.1
next prev parent reply other threads:[~2022-04-05 11:58 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-05 11:06 [PATCH bpf-next 00/10] xsk: stop softirq processing on full XSK Rx queue Maciej Fijalkowski
2022-04-05 11:06 ` [PATCH bpf-next 01/10] xsk: improve xdp_do_redirect() error codes Maciej Fijalkowski
2022-04-05 12:18 ` Jesper Dangaard Brouer
2022-04-05 11:06 ` [PATCH bpf-next 02/10] xsk: diversify return codes in xsk_rcv_check() Maciej Fijalkowski
2022-04-05 13:00 ` Jesper Dangaard Brouer
2022-04-05 13:35 ` Maciej Fijalkowski
2022-04-05 11:06 ` [PATCH bpf-next 03/10] ice: xsk: terminate NAPI when XSK Rx queue gets full Maciej Fijalkowski
2022-04-05 11:34 ` Alexander Lobakin
2022-04-05 12:02 ` Maciej Fijalkowski
2022-04-05 11:06 ` [PATCH bpf-next 04/10] i40e: " Maciej Fijalkowski
2022-04-05 13:04 ` Jesper Dangaard Brouer
2022-04-06 16:04 ` Maciej Fijalkowski
2022-04-05 11:06 ` [PATCH bpf-next 05/10] ixgbe: " Maciej Fijalkowski
2022-04-05 12:36 ` Jesper Dangaard Brouer
2022-04-05 13:52 ` Maciej Fijalkowski
2022-04-05 11:06 ` [PATCH bpf-next 06/10] ice: xsk: diversify return values from xsk_wakeup call paths Maciej Fijalkowski
2022-04-05 11:06 ` [PATCH bpf-next 07/10] i40e: " Maciej Fijalkowski
2022-04-05 11:06 ` [PATCH bpf-next 08/10] ixgbe: " Maciej Fijalkowski
2022-04-05 11:06 ` Maciej Fijalkowski [this message]
2022-04-05 11:06 ` [PATCH bpf-next 10/10] xsk: drop ternary operator from xskq_cons_has_entries Maciej Fijalkowski
2022-04-07 10:49 ` [PATCH bpf-next 00/10] xsk: stop softirq processing on full XSK Rx queue Maxim Mikityanskiy
2022-04-08 9:08 ` Maciej Fijalkowski
2022-04-08 12:48 ` Maxim Mikityanskiy
2022-04-08 18:17 ` Jakub Kicinski
2022-04-11 15:46 ` Maciej Fijalkowski
2022-04-11 17:07 ` Jakub Kicinski
2022-04-11 15:35 ` Maciej Fijalkowski
2022-04-13 10:40 ` Maxim Mikityanskiy
2022-04-13 15:12 ` Magnus Karlsson
2022-04-13 15:26 ` Maciej Fijalkowski
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