linux-kernel - [PATCH net v3] dpaa_eth: fix XDP queue index

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Date: Wed, 20 Mar 2024 12:25:19 +0100
From: David Gouarin <dgouarin@...il.com>
To: 
Cc: david.gouarin@...lesgroup.com,
	David Gouarin <dgouarin@...il.com>,
	Madalin Bucur <madalin.bucur@....com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Jesper Dangaard Brouer <hawk@...nel.org>,
	John Fastabend <john.fastabend@...il.com>,
	Camelia Groza <camelia.groza@....com>,
	Maciej Fijalkowski <maciej.fijalkowski@...el.com>,
	netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	bpf@...r.kernel.org
Subject: [PATCH net v3] dpaa_eth: fix XDP queue index

Make it possible to bind a XDP socket to a queue id.
The DPAA FQ Id was passed to the XDP program in the
xdp_rxq_info->queue_index instead of the Ethernet device queue number,
which made it unusable with bpf_map_redirect.
Instead of the DPAA FQ Id, initialise the XDP rx queue with the queue number.

Fixes: d57e57d0cd04 ("dpaa_eth: add XDP_TX support")

Signed-off-by: David Gouarin <dgouarin@...il.com>
---
v3: reword commit message
v2: add Fixes: in description
---
 drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
index dcbc598b11c6..988dc9237368 100644
--- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
+++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
@@ -1154,7 +1154,7 @@ static int dpaa_fq_init(struct dpaa_fq *dpaa_fq, bool td_enable)
 	if (dpaa_fq->fq_type == FQ_TYPE_RX_DEFAULT ||
 	    dpaa_fq->fq_type == FQ_TYPE_RX_PCD) {
 		err = xdp_rxq_info_reg(&dpaa_fq->xdp_rxq, dpaa_fq->net_dev,
-				       dpaa_fq->fqid, 0);
+				       dpaa_fq->channel, 0);
 		if (err) {
 			dev_err(dev, "xdp_rxq_info_reg() = %d\n", err);
 			return err;
-- 
2.34.1