The branch main has been updated by bz:
URL:
https://cgit.FreeBSD.org/src/commit/?id=4b6b9c1368b346f7093153d14e7931403ac3202d
commit 4b6b9c1368b346f7093153d14e7931403ac3202d
Author: Bjoern A. Zeeb <b...@freebsd.org>
AuthorDate: 2025-05-10 01:41:12 +0000
Commit: Bjoern A. Zeeb <b...@freebsd.org>
CommitDate: 2025-06-03 18:35:10 +0000
LinuxKPI: netdev features style, annotate, and add %b decoding mask
Start to sort through the netdevice features to match them with
FreeBSD. Annotate them a bit more verbose though the names are
pretty telling already.
While here adjust style(9) as well.
Lastly add the bit definitions for use with printf(9) %b as names
read easier than bitmasks. We will use that in LinuxKPI 802.11.
No functional changes.
Sponsored by: The FreeBSD Foundation
MFC after: 3 days
---
.../common/include/linux/netdev_features.h | 24 +++++++++++++---------
1 file changed, 14 insertions(+), 10 deletions(-)
diff --git a/sys/compat/linuxkpi/common/include/linux/netdev_features.h
b/sys/compat/linuxkpi/common/include/linux/netdev_features.h
index 51d2586e8aac..fae82776b071 100644
--- a/sys/compat/linuxkpi/common/include/linux/netdev_features.h
+++ b/sys/compat/linuxkpi/common/include/linux/netdev_features.h
@@ -33,16 +33,20 @@
typedef uint32_t netdev_features_t;
-#define NETIF_F_HIGHDMA BIT(0)
-#define NETIF_F_SG BIT(1)
-#define NETIF_F_IP_CSUM BIT(2)
-#define NETIF_F_IPV6_CSUM BIT(3)
-#define NETIF_F_TSO BIT(4)
-#define NETIF_F_TSO6 BIT(5)
-#define NETIF_F_RXCSUM BIT(6)
-#define NETIF_F_HW_CSUM BIT(7)
-#define NETIF_F_HW_TC BIT(8)
+#define NETIF_F_HIGHDMA BIT(0) /* Can DMA to high memory. */
+#define NETIF_F_SG BIT(1) /* Can do scatter/gather I/O. */
+#define NETIF_F_IP_CSUM BIT(2) /* Can csum TCP/UDP on IPv4. */
+#define NETIF_F_IPV6_CSUM BIT(3) /* Can csum TCP/UDP on IPv6. */
+#define NETIF_F_TSO BIT(4) /* Can do TCP over IPv4
segmentation. */
+#define NETIF_F_TSO6 BIT(5) /* Can do TCP over IPv6
segmentation. */
+#define NETIF_F_RXCSUM BIT(6) /* Can do receive csum offload.
*/
+#define NETIF_F_HW_CSUM BIT(7) /* Can csum packets (which?). */
+#define NETIF_F_HW_TC BIT(8) /* Can offload TC. */
-#define NETIF_F_CSUM_MASK (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM)
+#define NETIF_F_CSUM_MASK (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM)
+
+#define NETIF_F_BITS
\
+ "\20\1HIGHDMA\2SG\3IP_CSUM\4IPV6_CSUM\5TSO\6TSO6\7RXCSUM" \
+ "\10HW_CSUM\11HW_TC"
#endif /* _LINUXKPI_LINUX_NETDEV_FEATURES_H_ */
