netdev - [PATCH v2 net-next 1/5] xdp: export the DEV_MAP_BULK

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Date:   Wed, 22 Apr 2020 15:05:09 +0300
From:   Ioana Ciornei <ioana.ciornei@....com>
To:     davem@...emloft.net, netdev@...r.kernel.org
Cc:     brouer@...hat.com, Ioana Ciornei <ioana.ciornei@....com>
Subject: [PATCH v2 net-next 1/5] xdp: export the DEV_MAP_BULK_SIZE macro

Export the DEV_MAP_BULK_SIZE macro to the header file so that drivers
can directly use it as the maximum number of xdp_frames received in the
.ndo_xdp_xmit() callback.

Signed-off-by: Ioana Ciornei <ioana.ciornei@....com>
---
Changes in v2:
 - patch added

 include/net/xdp.h   | 2 ++
 kernel/bpf/devmap.c | 1 -
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/net/xdp.h b/include/net/xdp.h
index 40c6d3398458..3cc6d5d84aa4 100644
--- a/include/net/xdp.h
+++ b/include/net/xdp.h
@@ -181,4 +181,6 @@ bool xdp_attachment_flags_ok(struct xdp_attachment_info *info,
 void xdp_attachment_setup(struct xdp_attachment_info *info,
 			  struct netdev_bpf *bpf);
 
+#define DEV_MAP_BULK_SIZE 16
+
 #endif /* __LINUX_NET_XDP_H__ */
diff --git a/kernel/bpf/devmap.c b/kernel/bpf/devmap.c
index 58bdca5d978a..a51d9fb7a359 100644
--- a/kernel/bpf/devmap.c
+++ b/kernel/bpf/devmap.c
@@ -52,7 +52,6 @@
 #define DEV_CREATE_FLAG_MASK \
 	(BPF_F_NUMA_NODE | BPF_F_RDONLY | BPF_F_WRONLY)
 
-#define DEV_MAP_BULK_SIZE 16
 struct xdp_dev_bulk_queue {
 	struct xdp_frame *q[DEV_MAP_BULK_SIZE];
 	struct list_head flush_node;
-- 
2.17.1