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Date: Sat, 22 Feb 2014 17:11:45 +0530
From: Venkat Duvvuru <VenkatKumar.Duvvuru@...lex.com>
To: <netdev@...r.kernel.org>
CC: Venkat Duvvuru <VenkatKumar.Duvvuru@...lex.com>
Subject: [PATCH v2 ethtool 1/2] ethtool: Support for configurable RSS hash key
This ethtool patch adds new structure ethtool_rxfh definition for ETHTOOL_GRSSH
and ETHTOOL_SRSSH commands.
---
ethtool-copy.h | 42 +++++++++++++++++++++++++-----------------
1 files changed, 25 insertions(+), 17 deletions(-)
diff --git a/ethtool-copy.h b/ethtool-copy.h
index b5515c2..d7c7dad 100644
--- a/ethtool-copy.h
+++ b/ethtool-copy.h
@@ -611,22 +611,30 @@ struct ethtool_rxnfc {
/**
- * struct ethtool_rxfh_indir - command to get or set RX flow hash indirection
- * @cmd: Specific command number - %ETHTOOL_GRXFHINDIR or %ETHTOOL_SRXFHINDIR
- * @size: On entry, the array size of the user buffer, which may be zero.
- * On return from %ETHTOOL_GRXFHINDIR, the array size of the hardware
- * indirection table.
- * @ring_index: RX ring/queue index for each hash value
+ * struct ethtool_rxfh - command to get or set RX flow hash indirection or/and
+ * hash key.
+ * @cmd: Specific command number - %ETHTOOL_GRSSH or %ETHTOOL_SRSSH
+ * @indir_size: On entry, the array size of the user buffer, which may be zero.
+ * On return from %ETHTOOL_GRSSH, the array size of the hardware
+ * indirection table.
+ * @key_size: On entry, the array size of the user buffer in bytes,
+ * which may be zero.
+ * On return from %ETHTOOL_GRSSH, the size of the RSS hash key.
+ * @rsvd: Reserved for future extensions.
+ * @rss_config: RX ring/queue index for each hash value or/and hash key
+ * respectively.
*
- * For %ETHTOOL_GRXFHINDIR, a @size of zero means that only the size
- * should be returned. For %ETHTOOL_SRXFHINDIR, a @size of zero means
- * the table should be reset to default values. This last feature
+ * For %ETHTOOL_GRSSH, a @indir_size and key_size of zero means that only the
+ * size should be returned. For %ETHTOOL_SRSSH, a @indir_size of zero means
+ * the indir table should be reset to default values. This last feature
* is not supported by the original implementations.
*/
-struct ethtool_rxfh_indir {
- __u32 cmd;
- __u32 size;
- __u32 ring_index[0];
+struct ethtool_rxfh {
+ __u32 cmd;
+ __u32 indir_size;
+ __u32 key_size;
+ __u32 rsvd[3];
+ __u32 rss_config[0];
};
/**
@@ -885,8 +893,8 @@ enum ethtool_sfeatures_retval_bits {
#define ETHTOOL_SRXNTUPLE 0x00000035 /* Add an n-tuple filter to device */
#define ETHTOOL_GRXNTUPLE 0x00000036 /* deprecated */
#define ETHTOOL_GSSET_INFO 0x00000037 /* Get string set info */
-#define ETHTOOL_GRXFHINDIR 0x00000038 /* Get RX flow hash indir'n table */
-#define ETHTOOL_SRXFHINDIR 0x00000039 /* Set RX flow hash indir'n table */
+#define ETHTOOL_GRSSH 0x00000038 /* Get RX flow hash configuration */
+#define ETHTOOL_SRSSH 0x00000039 /* Set RX flow hash configuration */
#define ETHTOOL_GFEATURES 0x0000003a /* Get device offload settings */
#define ETHTOOL_SFEATURES 0x0000003b /* Change device offload settings */
@@ -993,8 +1001,8 @@ enum ethtool_sfeatures_retval_bits {
#define PORT_OTHER 0xff
/* Which transceiver to use. */
-#define XCVR_INTERNAL 0x00
-#define XCVR_EXTERNAL 0x01
+#define XCVR_INTERNAL 0x00 /* PHY and MAC are in the same package */
+#define XCVR_EXTERNAL 0x01 /* PHY and MAC are in different packages */
#define XCVR_DUMMY1 0x02
#define XCVR_DUMMY2 0x03
#define XCVR_DUMMY3 0x04
--
1.7.1
--
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