netdev - [PATCH 03/11] netdev: add XDP_SETUP_ZC

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Date: Fri, 25 Aug 2023 18:19:46 -0700
From: David Wei <dw@...idwei.uk>
To: Jens Axboe <axboe@...nel.dk>,
	Pavel Begunkov <asml.silence@...il.com>
Cc: io-uring@...r.kernel.org,
	netdev@...r.kernel.org,
	Mina Almasry <almasrymina@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>
Subject: [PATCH 03/11] netdev: add XDP_SETUP_ZC_RX command

From: David Wei <davidhwei@...a.com>

This patch adds a new XDP_SETUP_ZC_RX command that will be used in a
later patch to enable or disable ZC RX for a specific RX queue.

Signed-off-by: David Wei <davidhwei@...a.com>
Co-developed-by: Jonathan Lemon <jonathan.lemon@...il.com>
---
 include/linux/netdevice.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 08fbd4622ccf..a20a5c847916 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -1000,6 +1000,7 @@ enum bpf_netdev_command {
 	BPF_OFFLOAD_MAP_ALLOC,
 	BPF_OFFLOAD_MAP_FREE,
 	XDP_SETUP_XSK_POOL,
+	XDP_SETUP_ZC_RX,
 };
 
 struct bpf_prog_offload_ops;
@@ -1038,6 +1039,11 @@ struct netdev_bpf {
 			struct xsk_buff_pool *pool;
 			u16 queue_id;
 		} xsk;
+		/* XDP_SETUP_ZC_RX */
+		struct {
+			struct io_zc_rx_ifq *ifq;
+			u16 queue_id;
+		} zc_rx;
 	};
 };
 
-- 
2.39.3