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Date: Thu, 23 Mar 2017 23:07:13 -0700
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: linville@...driver.com
Cc: Jacob Keller <jacob.e.keller@...el.com>, netdev@...r.kernel.org,
nhorman@...hat.com, sassmann@...hat.com, jogreene@...hat.com,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [ethtool] ethtool: support queue and VF fields for rxclass filters
From: Jacob Keller <jacob.e.keller@...el.com>
Recent kernels have made it possible to specify filters applying to
a virtual function by partitioning the ring_cookie (action) value. The
lower 32bits will represent the queue, while the next 8bits represent
the virtual function.
Add support to view and specify the ring_cookie in this way so that
users do not have to manually create action values, and don't need to
understand the underlying layout of the ring_cookie value.
Support using queue and VF fields which will fill in their specific bits
of the ring_cookie value, using new customized OPT_RING_VF and
OPT_RING_QUEUE.
Add support to display the ring cookie value as a split VF identifier
and queue.
Signed-off-by: Jacob Keller <jacob.e.keller@...el.com>
Tested-by: Aaron Brown <aaron.f.brown@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
ethtool.8.in | 7 ++++
rxclass.c | 102 +++++++++++++++++++++++++++++++++++++++++++++++++----------
2 files changed, 92 insertions(+), 17 deletions(-)
diff --git a/ethtool.8.in b/ethtool.8.in
index aad96b7..13bc8b1 100644
--- a/ethtool.8.in
+++ b/ethtool.8.in
@@ -835,6 +835,13 @@ lB l.
0 or higher Rx queue to route the flow
.TE
.TP
+.BI vf \ N
+Specifies the Virtual Function the filter applies to. A value of 0 indicates
+the PF, and thus the VF index is offset by 1. Not compatible with action.
+.TP
+.BI queue \ N
+Specifies the Rx queue to send packets to. Not compatible with action.
+.TP
.BI loc \ N
Specify the location/ID to insert the rule. This will overwrite
any rule present in that location and will not go through any
diff --git a/rxclass.c b/rxclass.c
index c7bfeba..ebc3e1a 100644
--- a/rxclass.c
+++ b/rxclass.c
@@ -247,11 +247,19 @@ static void rxclass_print_nfc_rule(struct ethtool_rx_flow_spec *fsp)
rxclass_print_nfc_spec_ext(fsp);
- if (fsp->ring_cookie != RX_CLS_FLOW_DISC)
- fprintf(stdout, "\tAction: Direct to queue %llu\n",
- fsp->ring_cookie);
- else
+ if (fsp->ring_cookie != RX_CLS_FLOW_DISC) {
+ u64 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
+ u64 queue = ethtool_get_flow_spec_ring(fsp->ring_cookie);
+
+ if (vf)
+ fprintf(stdout, "\tAction: Direct to queue %llu\n",
+ queue);
+ else
+ fprintf(stdout, "\tAction: Direct to VF %llu queue %llu\n",
+ vf, queue);
+ } else {
fprintf(stdout, "\tAction: Drop\n");
+ }
fprintf(stdout, "\n");
}
@@ -600,6 +608,8 @@ typedef enum {
OPT_U16,
OPT_U32,
OPT_U64,
+ OPT_RING_VF,
+ OPT_RING_QUEUE,
OPT_BE16,
OPT_BE32,
OPT_BE64,
@@ -608,19 +618,21 @@ typedef enum {
OPT_MAC,
} rule_opt_type_t;
-#define NFC_FLAG_RING 0x001
-#define NFC_FLAG_LOC 0x002
-#define NFC_FLAG_SADDR 0x004
-#define NFC_FLAG_DADDR 0x008
-#define NFC_FLAG_SPORT 0x010
-#define NFC_FLAG_DPORT 0x020
-#define NFC_FLAG_SPI 0x030
-#define NFC_FLAG_TOS 0x040
-#define NFC_FLAG_PROTO 0x080
-#define NTUPLE_FLAG_VLAN 0x100
-#define NTUPLE_FLAG_UDEF 0x200
-#define NTUPLE_FLAG_VETH 0x400
-#define NFC_FLAG_MAC_ADDR 0x800
+#define NFC_FLAG_RING 0x0001
+#define NFC_FLAG_LOC 0x0002
+#define NFC_FLAG_SADDR 0x0004
+#define NFC_FLAG_DADDR 0x0008
+#define NFC_FLAG_SPORT 0x0010
+#define NFC_FLAG_DPORT 0x0020
+#define NFC_FLAG_SPI 0x0030
+#define NFC_FLAG_TOS 0x0040
+#define NFC_FLAG_PROTO 0x0080
+#define NTUPLE_FLAG_VLAN 0x0100
+#define NTUPLE_FLAG_UDEF 0x0200
+#define NTUPLE_FLAG_VETH 0x0400
+#define NFC_FLAG_MAC_ADDR 0x0800
+#define NFC_FLAG_RING_VF 0x1000
+#define NFC_FLAG_RING_QUEUE 0x2000
struct rule_opts {
const char *name;
@@ -648,6 +660,10 @@ static const struct rule_opts rule_nfc_tcp_ip4[] = {
offsetof(struct ethtool_rx_flow_spec, m_u.tcp_ip4_spec.pdst) },
{ "action", OPT_U64, NFC_FLAG_RING,
offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "vf", OPT_RING_VF, NFC_FLAG_RING_VF,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "queue", OPT_RING_QUEUE, NFC_FLAG_RING_QUEUE,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
{ "loc", OPT_U32, NFC_FLAG_LOC,
offsetof(struct ethtool_rx_flow_spec, location), -1 },
{ "vlan-etype", OPT_BE16, NTUPLE_FLAG_VETH,
@@ -679,6 +695,10 @@ static const struct rule_opts rule_nfc_esp_ip4[] = {
offsetof(struct ethtool_rx_flow_spec, m_u.esp_ip4_spec.spi) },
{ "action", OPT_U64, NFC_FLAG_RING,
offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "vf", OPT_RING_VF, NFC_FLAG_RING_VF,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "queue", OPT_RING_QUEUE, NFC_FLAG_RING_QUEUE,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
{ "loc", OPT_U32, NFC_FLAG_LOC,
offsetof(struct ethtool_rx_flow_spec, location), -1 },
{ "vlan-etype", OPT_BE16, NTUPLE_FLAG_VETH,
@@ -722,6 +742,10 @@ static const struct rule_opts rule_nfc_usr_ip4[] = {
offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip4_spec.l4_4_bytes) + 2 },
{ "action", OPT_U64, NFC_FLAG_RING,
offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "vf", OPT_RING_VF, NFC_FLAG_RING_VF,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "queue", OPT_RING_QUEUE, NFC_FLAG_RING_QUEUE,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
{ "loc", OPT_U32, NFC_FLAG_LOC,
offsetof(struct ethtool_rx_flow_spec, location), -1 },
{ "vlan-etype", OPT_BE16, NTUPLE_FLAG_VETH,
@@ -756,6 +780,10 @@ static const struct rule_opts rule_nfc_tcp_ip6[] = {
offsetof(struct ethtool_rx_flow_spec, m_u.tcp_ip6_spec.pdst) },
{ "action", OPT_U64, NFC_FLAG_RING,
offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "vf", OPT_RING_VF, NFC_FLAG_RING_VF,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "queue", OPT_RING_QUEUE, NFC_FLAG_RING_QUEUE,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
{ "loc", OPT_U32, NFC_FLAG_LOC,
offsetof(struct ethtool_rx_flow_spec, location), -1 },
{ "vlan-etype", OPT_BE16, NTUPLE_FLAG_VETH,
@@ -787,6 +815,10 @@ static const struct rule_opts rule_nfc_esp_ip6[] = {
offsetof(struct ethtool_rx_flow_spec, m_u.esp_ip6_spec.spi) },
{ "action", OPT_U64, NFC_FLAG_RING,
offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "vf", OPT_RING_VF, NFC_FLAG_RING_VF,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "queue", OPT_RING_QUEUE, NFC_FLAG_RING_QUEUE,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
{ "loc", OPT_U32, NFC_FLAG_LOC,
offsetof(struct ethtool_rx_flow_spec, location), -1 },
{ "vlan-etype", OPT_BE16, NTUPLE_FLAG_VETH,
@@ -830,6 +862,10 @@ static const struct rule_opts rule_nfc_usr_ip6[] = {
offsetof(struct ethtool_rx_flow_spec, m_u.usr_ip6_spec.l4_4_bytes) + 2 },
{ "action", OPT_U64, NFC_FLAG_RING,
offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "vf", OPT_RING_VF, NFC_FLAG_RING_VF,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "queue", OPT_RING_QUEUE, NFC_FLAG_RING_QUEUE,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
{ "loc", OPT_U32, NFC_FLAG_LOC,
offsetof(struct ethtool_rx_flow_spec, location), -1 },
{ "vlan-etype", OPT_BE16, NTUPLE_FLAG_VETH,
@@ -858,6 +894,10 @@ static const struct rule_opts rule_nfc_ether[] = {
offsetof(struct ethtool_rx_flow_spec, m_u.ether_spec.h_proto) },
{ "action", OPT_U64, NFC_FLAG_RING,
offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "vf", OPT_RING_VF, NFC_FLAG_RING_VF,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
+ { "queue", OPT_RING_QUEUE, NFC_FLAG_RING_QUEUE,
+ offsetof(struct ethtool_rx_flow_spec, ring_cookie), -1 },
{ "loc", OPT_U32, NFC_FLAG_LOC,
offsetof(struct ethtool_rx_flow_spec, location), -1 },
{ "vlan-etype", OPT_BE16, NTUPLE_FLAG_VETH,
@@ -1002,6 +1042,24 @@ static int rxclass_get_val(char *str, unsigned char *p, u32 *flags,
*(u64 *)&p[opt->moffset] = (u64)mask;
break;
}
+ case OPT_RING_VF: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 8);
+ if (err)
+ return -1;
+ *(u64 *)&p[opt->offset] &= ~ETHTOOL_RX_FLOW_SPEC_RING_VF;
+ *(u64 *)&p[opt->offset] = (u64)val << ETHTOOL_RX_FLOW_SPEC_RING_VF_OFF;
+ break;
+ }
+ case OPT_RING_QUEUE: {
+ unsigned long long val;
+ err = rxclass_get_ulong(str, &val, 32);
+ if (err)
+ return -1;
+ *(u64 *)&p[opt->offset] &= ~ETHTOOL_RX_FLOW_SPEC_RING;
+ *(u64 *)&p[opt->offset] |= (u64)val;
+ break;
+ }
case OPT_BE16: {
unsigned long long val;
err = rxclass_get_ulong(str, &val, 16);
@@ -1320,6 +1378,16 @@ int rxclass_parse_ruleopts(struct cmd_context *ctx,
}
}
+ if ((flags & NFC_FLAG_RING) && (flags & NFC_FLAG_RING_QUEUE)) {
+ fprintf(stderr, "action and queue are not compatible\n");
+ return -1;
+ }
+
+ if ((flags & NFC_FLAG_RING) && (flags & NFC_FLAG_RING_VF)) {
+ fprintf(stderr, "action and vf are not compatible\n");
+ return -1;
+ }
+
if (flow_type == IPV4_USER_FLOW)
fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
if (flags & (NTUPLE_FLAG_VLAN | NTUPLE_FLAG_UDEF | NTUPLE_FLAG_VETH))
--
2.12.0
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