* [RFC 1/2] ethdev: fix GENEVE option item conversion
2024-04-17 7:23 [RFC 0/2] ethdev: update GENEVE option item structure Michael Baum
@ 2024-04-17 7:23 ` Michael Baum
2024-04-17 7:23 ` [RFC 2/2] ethdev: add data size field to GENEVE option item Michael Baum
1 sibling, 0 replies; 3+ messages in thread
From: Michael Baum @ 2024-04-17 7:23 UTC (permalink / raw)
To: dev; +Cc: Dariusz Sosnowski, Thomas Monjalon, Ferruh Yigit, Ori Kam, shirik
The "rte_flow_conv()" function, enables, among other things, to copy
item list.
For GENEVE option item, the function copies it without considering deep
copy. It copies the "data" pointer without copying the pointed values.
This patch adds deep copy for after regular copy.
Fixes: 2b4c72b4d10d ("ethdev: introduce GENEVE header TLV option item")
Cc: shirik@nvidia.com
Signed-off-by: Michael Baum <michaelba@nvidia.com>
---
lib/ethdev/rte_flow.c | 29 +++++++++++++++++++++++++----
1 file changed, 25 insertions(+), 4 deletions(-)
diff --git a/lib/ethdev/rte_flow.c b/lib/ethdev/rte_flow.c
index 7ab1100ea0..2803507462 100644
--- a/lib/ethdev/rte_flow.c
+++ b/lib/ethdev/rte_flow.c
@@ -622,6 +622,7 @@ rte_flow_conv_item_spec(void *buf, const size_t size,
switch (item->type) {
union {
const struct rte_flow_item_raw *raw;
+ const struct rte_flow_item_geneve_opt *geneve_opt;
} spec;
union {
const struct rte_flow_item_raw *raw;
@@ -631,10 +632,13 @@ rte_flow_conv_item_spec(void *buf, const size_t size,
} mask;
union {
const struct rte_flow_item_raw *raw;
+ const struct rte_flow_item_geneve_opt *geneve_opt;
} src;
union {
struct rte_flow_item_raw *raw;
+ struct rte_flow_item_geneve_opt *geneve_opt;
} dst;
+ void *deep_src;
size_t tmp;
case RTE_FLOW_ITEM_TYPE_RAW:
@@ -663,13 +667,30 @@ rte_flow_conv_item_spec(void *buf, const size_t size,
tmp = last.raw->length & mask.raw->length;
if (tmp) {
off = RTE_ALIGN_CEIL(off, sizeof(*dst.raw->pattern));
- if (size >= off + tmp)
- dst.raw->pattern = rte_memcpy
- ((void *)((uintptr_t)dst.raw + off),
- src.raw->pattern, tmp);
+ if (size >= off + tmp) {
+ deep_src = (void *)((uintptr_t)dst.raw + off);
+ dst.raw->pattern = rte_memcpy(deep_src,
+ src.raw->pattern,
+ tmp);
+ }
off += tmp;
}
break;
+ case RTE_FLOW_ITEM_TYPE_GENEVE_OPT:
+ off = rte_flow_conv_copy(buf, data, size,
+ rte_flow_desc_item, item->type);
+ spec.geneve_opt = item->spec;
+ src.geneve_opt = data;
+ dst.geneve_opt = buf;
+ tmp = spec.geneve_opt->option_len << 2;
+ if (size > 0 && src.geneve_opt->data) {
+ deep_src = (void *)((uintptr_t)(dst.geneve_opt + 1));
+ dst.geneve_opt->data = rte_memcpy(deep_src,
+ src.geneve_opt->data,
+ tmp);
+ }
+ off += tmp;
+ break;
default:
off = rte_flow_conv_copy(buf, data, size,
rte_flow_desc_item, item->type);
--
2.25.1
^ permalink raw reply [flat|nested] 3+ messages in thread* [RFC 2/2] ethdev: add data size field to GENEVE option item
2024-04-17 7:23 [RFC 0/2] ethdev: update GENEVE option item structure Michael Baum
2024-04-17 7:23 ` [RFC 1/2] ethdev: fix GENEVE option item conversion Michael Baum
@ 2024-04-17 7:23 ` Michael Baum
1 sibling, 0 replies; 3+ messages in thread
From: Michael Baum @ 2024-04-17 7:23 UTC (permalink / raw)
To: dev; +Cc: Dariusz Sosnowski, Thomas Monjalon, Ferruh Yigit, Ori Kam
The "rte_flow_item_geneve_opt" structure has field for option length.
This field has 2 different usages which might limit each other:
1. field to matching with value/mask.
2. descriptor for data array size.
This patch adds a new field "data_array_size" into
"rte_flow_item_geneve_opt" structure in addition to existing
"option_len" field.
Signed-off-by: Michael Baum <michaelba@nvidia.com>
---
app/test-pmd/cmdline_flow.c | 10 ++++++
doc/guides/prog_guide/rte_flow.rst | 16 +++++++++
doc/guides/testpmd_app_ug/testpmd_funcs.rst | 3 +-
lib/ethdev/rte_flow.c | 36 ++++++++++-----------
lib/ethdev/rte_flow.h | 3 +-
5 files changed, 47 insertions(+), 21 deletions(-)
diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c
index 60ee9337cf..966a47936a 100644
--- a/app/test-pmd/cmdline_flow.c
+++ b/app/test-pmd/cmdline_flow.c
@@ -492,6 +492,7 @@ enum index {
ITEM_GENEVE_OPT_TYPE,
ITEM_GENEVE_OPT_LENGTH,
ITEM_GENEVE_OPT_DATA,
+ ITEM_GENEVE_OPT_DATA_ARRAY_SIZE,
ITEM_INTEGRITY,
ITEM_INTEGRITY_LEVEL,
ITEM_INTEGRITY_VALUE,
@@ -2032,6 +2033,7 @@ static const enum index item_geneve_opt[] = {
ITEM_GENEVE_OPT_TYPE,
ITEM_GENEVE_OPT_LENGTH,
ITEM_GENEVE_OPT_DATA,
+ ITEM_GENEVE_OPT_DATA_ARRAY_SIZE,
ITEM_NEXT,
ZERO,
};
@@ -5772,6 +5774,14 @@ static const struct token token_list[] = {
(sizeof(struct rte_flow_item_geneve_opt),
ITEM_GENEVE_OPT_DATA_SIZE)),
},
+ [ITEM_GENEVE_OPT_DATA_ARRAY_SIZE] = {
+ .name = "data_size",
+ .help = "GENEVE option data array size",
+ .next = NEXT(item_geneve_opt, NEXT_ENTRY(COMMON_UNSIGNED),
+ item_param),
+ .args = ARGS(ARGS_ENTRY(struct rte_flow_item_geneve_opt,
+ data_array_size)),
+ },
[ITEM_INTEGRITY] = {
.name = "integrity",
.help = "match packet integrity",
diff --git a/doc/guides/prog_guide/rte_flow.rst b/doc/guides/prog_guide/rte_flow.rst
index dad588763f..cce02fe1d6 100644
--- a/doc/guides/prog_guide/rte_flow.rst
+++ b/doc/guides/prog_guide/rte_flow.rst
@@ -1092,6 +1092,22 @@ Matches a GENEVE header.
- ``rsvd1``: reserved, normally 0x00.
- Default ``mask`` matches VNI only.
+
+Item: ``GENEVE_OPT``
+^^^^^^^^^^^^^^^^^^^^
+
+Matches a GENEVE TLV option header.
+
+- ``option_class``: option class ID.
+- ``option_type``: option type.
+- ``option_len``: option data length in 4-bytes granularity.
+- ``data``: option data array.
+- ``data_array_size``: option data array size.
+ This field is not matchable, it is descriptor how to read the array.
+ It should be specified in ``mask`` as well.
+- Default ``mask`` matches type only.
+
+
Item: ``VXLAN-GPE``
^^^^^^^^^^^^^^^^^^^
diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
index 2fbf9220d8..97623044e9 100644
--- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
+++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
@@ -3743,7 +3743,8 @@ This section lists supported pattern items and their attributes, if any.
- ``type {unsigned}``: GENEVE option type.
- ``length {unsigned}``: GENEVE option length in 32-bit words.
- ``data {hex string}``: GENEVE option data, the length is defined by
- ``length`` field.
+ ``data_size`` field.
+ - ``data_size {unsigned}``: GENEVE option data size in 32-bit words.
- ``vxlan-gpe``: match VXLAN-GPE header.
diff --git a/lib/ethdev/rte_flow.c b/lib/ethdev/rte_flow.c
index 2803507462..d68359961d 100644
--- a/lib/ethdev/rte_flow.c
+++ b/lib/ethdev/rte_flow.c
@@ -81,6 +81,21 @@ rte_flow_item_flex_conv(void *buf, const void *data)
return src->length;
}
+static size_t
+rte_flow_item_geneve_opt_conv(void *buf, const void *data)
+{
+ const struct rte_flow_item_geneve_opt *src = data;
+ uint16_t byte_size = src->data_array_size << 2;
+
+ if (buf) {
+ struct rte_flow_item_geneve_opt *dst = buf;
+ void *deep_src = (void *)((uintptr_t)(dst + 1));
+
+ dst->data = rte_memcpy(deep_src, src->data, byte_size);
+ }
+ return byte_size;
+}
+
/** Generate flow_item[] entry. */
#define MK_FLOW_ITEM(t, s) \
[RTE_FLOW_ITEM_TYPE_ ## t] = { \
@@ -155,7 +170,8 @@ static const struct rte_flow_desc_data rte_flow_desc_item[] = {
MK_FLOW_ITEM(L2TPV3OIP, sizeof(struct rte_flow_item_l2tpv3oip)),
MK_FLOW_ITEM(PFCP, sizeof(struct rte_flow_item_pfcp)),
MK_FLOW_ITEM(ECPRI, sizeof(struct rte_flow_item_ecpri)),
- MK_FLOW_ITEM(GENEVE_OPT, sizeof(struct rte_flow_item_geneve_opt)),
+ MK_FLOW_ITEM_FN(GENEVE_OPT, sizeof(struct rte_flow_item_geneve_opt),
+ rte_flow_item_geneve_opt_conv),
MK_FLOW_ITEM(INTEGRITY, sizeof(struct rte_flow_item_integrity)),
MK_FLOW_ITEM(CONNTRACK, sizeof(uint32_t)),
MK_FLOW_ITEM(PORT_REPRESENTOR, sizeof(struct rte_flow_item_ethdev)),
@@ -622,7 +638,6 @@ rte_flow_conv_item_spec(void *buf, const size_t size,
switch (item->type) {
union {
const struct rte_flow_item_raw *raw;
- const struct rte_flow_item_geneve_opt *geneve_opt;
} spec;
union {
const struct rte_flow_item_raw *raw;
@@ -632,11 +647,9 @@ rte_flow_conv_item_spec(void *buf, const size_t size,
} mask;
union {
const struct rte_flow_item_raw *raw;
- const struct rte_flow_item_geneve_opt *geneve_opt;
} src;
union {
struct rte_flow_item_raw *raw;
- struct rte_flow_item_geneve_opt *geneve_opt;
} dst;
void *deep_src;
size_t tmp;
@@ -676,21 +689,6 @@ rte_flow_conv_item_spec(void *buf, const size_t size,
off += tmp;
}
break;
- case RTE_FLOW_ITEM_TYPE_GENEVE_OPT:
- off = rte_flow_conv_copy(buf, data, size,
- rte_flow_desc_item, item->type);
- spec.geneve_opt = item->spec;
- src.geneve_opt = data;
- dst.geneve_opt = buf;
- tmp = spec.geneve_opt->option_len << 2;
- if (size > 0 && src.geneve_opt->data) {
- deep_src = (void *)((uintptr_t)(dst.geneve_opt + 1));
- dst.geneve_opt->data = rte_memcpy(deep_src,
- src.geneve_opt->data,
- tmp);
- }
- off += tmp;
- break;
default:
off = rte_flow_conv_copy(buf, data, size,
rte_flow_desc_item, item->type);
diff --git a/lib/ethdev/rte_flow.h b/lib/ethdev/rte_flow.h
index 6e8ab1d4c7..0ccb7562bd 100644
--- a/lib/ethdev/rte_flow.h
+++ b/lib/ethdev/rte_flow.h
@@ -1876,7 +1876,8 @@ struct rte_flow_item_geneve_opt {
rte_be16_t option_class;
uint8_t option_type;
uint8_t option_len;
- uint32_t *data;
+ rte_be32_t *data;
+ uint8_t data_array_size;
};
/** Default mask for RTE_FLOW_ITEM_TYPE_GENEVE_OPT. */
--
2.25.1
^ permalink raw reply [flat|nested] 3+ messages in thread