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Date: Thu, 23 Sep 2010 22:48:52 +0100
From: Ben Hutchings <bhutchings@...arflare.com>
To: Jeff Garzik <jgarzik@...ox.com>
Cc: netdev@...r.kernel.org, linux-net-drivers@...arflare.com,
Peter Waskiewicz <peter.p.waskiewicz.jr@...el.com>
Subject: [PATCH ethtool 3/7] ethtool: Fix RX n-tuple masks and documentation
For fields with unspecified values, explicitly mask all bits. Do not
allow specifying a mask without a value.
Change usage information to clarify which parameters are optional or
required.
Signed-off-by: Ben Hutchings <bhutchings@...arflare.com>
---
ethtool.8 | 31 ++++++++--------
ethtool.c | 115 +++++++++++++++++++++++++++++++++++++++++++++++-------------
2 files changed, 105 insertions(+), 41 deletions(-)
diff --git a/ethtool.8 b/ethtool.8
index 3ca403c..295caab 100644
--- a/ethtool.8
+++ b/ethtool.8
@@ -235,34 +235,33 @@ ethtool \- Display or change ethernet card settings
.B ethtool \-U|\-\-config\-ntuple
.I ethX
-.RB [ flow-type
-.RB tcp4|udp4|sctp4 ]
+.A3 flow-type tcp4 udp4 sctp4
.RB [ src-ip
-.IR addr ]
+.IR addr
.RB [ src-ip-mask
-.IR mask ]
+.IR mask ]]
.RB [ dst-ip
-.IR addr ]
+.IR addr
.RB [ dst-ip-mask
-.IR mask ]
+.IR mask ]]
.RB [ src-port
-.IR port ]
+.IR port
.RB [ src-port-mask
-.IR mask ]
+.IR mask ]]
.RB [ dst-port
-.IR port ]
+.IR port
.RB [ dst-port-mask
-.IR mask ]
+.IR mask ]]
.RB [ vlan
-.IR VLAN-tag ]
+.IR VLAN-tag
.RB [ vlan-mask
-.IR mask ]
+.IR mask ]]
.RB [ user-def
-.IR data ]
+.IR data
.RB [ user-def-mask
-.IR mask ]
-.RB [ action
-.IR queue\ or\ drop ]
+.IR mask ]]
+.RI action \ N
+
.SH DESCRIPTION
.BI ethtool
is used for querying settings of an ethernet device and changing them.
diff --git a/ethtool.c b/ethtool.c
index 8c5d595..6ec1cac 100644
--- a/ethtool.c
+++ b/ethtool.c
@@ -99,6 +99,7 @@ static int do_gstats(int fd, struct ifreq *ifr);
static int rxflow_str_to_type(const char *str);
static int parse_rxfhashopts(char *optstr, u32 *data);
static char *unparse_rxfhashopts(u64 opts);
+static void parse_rxntupleopts(int argc, char **argp, int first_arg);
static int dump_rxfhash(int fhash, u64 val);
static int do_srxclass(int fd, struct ifreq *ifr);
static int do_grxclass(int fd, struct ifreq *ifr);
@@ -239,12 +240,14 @@ static struct option {
" equal N | weight W0 W1 ...\n" },
{ "-U", "--config-ntuple", MODE_SNTUPLE, "Configure Rx ntuple filters "
"and actions",
- " [ flow-type tcp4|udp4|sctp4 src-ip <addr> "
- "src-ip-mask <mask> dst-ip <addr> dst-ip-mask <mask> "
- "src-port <port> src-port-mask <mask> dst-port <port> "
- "dst-port-mask <mask> vlan <VLAN tag> vlan-mask <mask> "
- "user-def <data> user-def-mask <mask> "
- "action <queue or drop>\n" },
+ " flow-type tcp4|udp4|sctp4\n"
+ " [ src-ip ADDR [src-ip-mask MASK] ]\n"
+ " [ dst-ip ADDR [dst-ip-mask MASK] ]\n"
+ " [ src-port PORT [src-port-mask MASK] ]\n"
+ " [ dst-port PORT [dst-port-mask MASK] ]\n"
+ " [ vlan VLAN-TAG [vlan-mask MASK] ]\n"
+ " [ user-def DATA [user-def-mask MASK] ]\n"
+ " action N\n" },
{ "-u", "--show-ntuple", MODE_GNTUPLE,
"Get Rx ntuple filters and actions\n" },
{ "-h", "--help", MODE_HELP, "Show this help" },
@@ -366,6 +369,18 @@ static int rxfhindir_equal = 0;
static char **rxfhindir_weight = NULL;
static int sntuple_changed = 0;
static struct ethtool_rx_ntuple_flow_spec ntuple_fs;
+static int ntuple_ip4src_seen = 0;
+static int ntuple_ip4src_mask_seen = 0;
+static int ntuple_ip4dst_seen = 0;
+static int ntuple_ip4dst_mask_seen = 0;
+static int ntuple_psrc_seen = 0;
+static int ntuple_psrc_mask_seen = 0;
+static int ntuple_pdst_seen = 0;
+static int ntuple_pdst_mask_seen = 0;
+static int ntuple_vlan_tag_seen = 0;
+static int ntuple_vlan_tag_mask_seen = 0;
+static int ntuple_user_def_seen = 0;
+static int ntuple_user_def_mask_seen = 0;
static char *flash_file = NULL;
static int flash = -1;
static int flash_region = -1;
@@ -482,18 +497,30 @@ static struct cmdline_info cmdline_coalesce[] = {
};
static struct cmdline_info cmdline_ntuple[] = {
- { "src-ip", CMDL_IP4, &ntuple_fs.h_u.tcp_ip4_spec.ip4src, NULL },
- { "src-ip-mask", CMDL_IP4, &ntuple_fs.m_u.tcp_ip4_spec.ip4src, NULL },
- { "dst-ip", CMDL_IP4, &ntuple_fs.h_u.tcp_ip4_spec.ip4dst, NULL },
- { "dst-ip-mask", CMDL_IP4, &ntuple_fs.m_u.tcp_ip4_spec.ip4dst, NULL },
- { "src-port", CMDL_BE16, &ntuple_fs.h_u.tcp_ip4_spec.psrc, NULL },
- { "src-port-mask", CMDL_BE16, &ntuple_fs.m_u.tcp_ip4_spec.psrc, NULL },
- { "dst-port", CMDL_BE16, &ntuple_fs.h_u.tcp_ip4_spec.pdst, NULL },
- { "dst-port-mask", CMDL_BE16, &ntuple_fs.m_u.tcp_ip4_spec.pdst, NULL },
- { "vlan", CMDL_U16, &ntuple_fs.vlan_tag, NULL },
- { "vlan-mask", CMDL_U16, &ntuple_fs.vlan_tag_mask, NULL },
- { "user-def", CMDL_U64, &ntuple_fs.data, NULL },
- { "user-def-mask", CMDL_U64, &ntuple_fs.data_mask, NULL },
+ { "src-ip", CMDL_IP4, &ntuple_fs.h_u.tcp_ip4_spec.ip4src, NULL,
+ 0, &ntuple_ip4src_seen },
+ { "src-ip-mask", CMDL_IP4, &ntuple_fs.m_u.tcp_ip4_spec.ip4src, NULL,
+ 0, &ntuple_ip4src_mask_seen },
+ { "dst-ip", CMDL_IP4, &ntuple_fs.h_u.tcp_ip4_spec.ip4dst, NULL,
+ 0, &ntuple_ip4dst_seen },
+ { "dst-ip-mask", CMDL_IP4, &ntuple_fs.m_u.tcp_ip4_spec.ip4dst, NULL,
+ 0, &ntuple_ip4dst_mask_seen },
+ { "src-port", CMDL_BE16, &ntuple_fs.h_u.tcp_ip4_spec.psrc, NULL,
+ 0, &ntuple_psrc_seen },
+ { "src-port-mask", CMDL_BE16, &ntuple_fs.m_u.tcp_ip4_spec.psrc, NULL,
+ 0, &ntuple_psrc_mask_seen },
+ { "dst-port", CMDL_BE16, &ntuple_fs.h_u.tcp_ip4_spec.pdst, NULL,
+ 0, &ntuple_pdst_seen },
+ { "dst-port-mask", CMDL_BE16, &ntuple_fs.m_u.tcp_ip4_spec.pdst, NULL,
+ 0, &ntuple_pdst_mask_seen },
+ { "vlan", CMDL_U16, &ntuple_fs.vlan_tag, NULL,
+ 0, &ntuple_vlan_tag_seen },
+ { "vlan-mask", CMDL_U16, &ntuple_fs.vlan_tag_mask, NULL,
+ 0, &ntuple_vlan_tag_mask_seen },
+ { "user-def", CMDL_U64, &ntuple_fs.data, NULL,
+ 0, &ntuple_user_def_seen },
+ { "user-def-mask", CMDL_U64, &ntuple_fs.data_mask, NULL,
+ 0, &ntuple_user_def_mask_seen },
{ "action", CMDL_S32, &ntuple_fs.action, NULL },
};
@@ -844,13 +871,7 @@ static void parse_cmdline(int argc, char **argp)
show_usage(1);
break;
}
- ntuple_fs.flow_type =
- rxflow_str_to_type(argp[i]);
- i += 1;
- parse_generic_cmdline(argc, argp, i,
- &sntuple_changed,
- cmdline_ntuple,
- ARRAY_SIZE(cmdline_ntuple));
+ parse_rxntupleopts(argc, argp, i);
i = argc;
break;
} else {
@@ -1518,6 +1539,50 @@ static char *unparse_rxfhashopts(u64 opts)
return buf;
}
+static void parse_rxntupleopts(int argc, char **argp, int i)
+{
+ ntuple_fs.flow_type = rxflow_str_to_type(argp[i]);
+
+ switch (ntuple_fs.flow_type) {
+ case TCP_V4_FLOW:
+ case UDP_V4_FLOW:
+ case SCTP_V4_FLOW:
+ parse_generic_cmdline(argc, argp, i + 1,
+ &sntuple_changed,
+ cmdline_ntuple,
+ ARRAY_SIZE(cmdline_ntuple));
+ if (!ntuple_ip4src_seen)
+ ntuple_fs.m_u.tcp_ip4_spec.ip4src = 0xffffffff;
+ if (!ntuple_ip4dst_seen)
+ ntuple_fs.m_u.tcp_ip4_spec.ip4dst = 0xffffffff;
+ if (!ntuple_psrc_seen)
+ ntuple_fs.m_u.tcp_ip4_spec.psrc = 0xffff;
+ if (!ntuple_pdst_seen)
+ ntuple_fs.m_u.tcp_ip4_spec.pdst = 0xffff;
+ ntuple_fs.m_u.tcp_ip4_spec.tos = 0xff;
+ break;
+ default:
+ fprintf(stderr, "Unsupported flow type \"%s\"\n", argp[i]);
+ exit(106);
+ break;
+ }
+
+ if (!ntuple_vlan_tag_seen)
+ ntuple_fs.vlan_tag_mask = 0xffff;
+ if (!ntuple_user_def_seen)
+ ntuple_fs.data_mask = 0xffffffffffffffffULL;
+
+ if ((ntuple_ip4src_mask_seen && !ntuple_ip4src_seen) ||
+ (ntuple_ip4dst_mask_seen && !ntuple_ip4dst_seen) ||
+ (ntuple_psrc_mask_seen && !ntuple_psrc_seen) ||
+ (ntuple_pdst_mask_seen && !ntuple_pdst_seen) ||
+ (ntuple_vlan_tag_mask_seen && !ntuple_vlan_tag_seen) ||
+ (ntuple_user_def_mask_seen && !ntuple_user_def_seen)) {
+ fprintf(stderr, "Cannot specify mask without value\n");
+ exit(107);
+ }
+}
+
static struct {
const char *name;
int (*func)(struct ethtool_drvinfo *info, struct ethtool_regs *regs);
--
1.7.2.1
--
Ben Hutchings, Senior Software Engineer, Solarflare Communications
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.
--
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