[dpdk-dev] [PATCH] lib: fix RTE_MBUF_METADATA macros
Daniel Mrzyglod
danielx.t.mrzyglod at intel.com
Fri Jun 5 16:55:10 CEST 2015
Fix RTE_MBUF_METADATA macros to allow for unaligned accesses to
meta-data fields.
Forcing aligned accesses is not really required, so this is removing an
unneeded constraint.
This issue was met during testing of the new version of the ip_pipeline
application. There is no performance impact.
This change has no ABI impact, as the previous code that uses aligned
accesses continues to run without any issues.
Signed-off-by: Daniel Mrzyglod <danielx.t.mrzyglod at intel.com>
---
lib/librte_pipeline/rte_pipeline.c | 8 --------
lib/librte_port/rte_port.h | 26 +++++++++++++-------------
lib/librte_table/rte_table_array.c | 4 +---
lib/librte_table/rte_table_hash_ext.c | 13 -------------
lib/librte_table/rte_table_hash_key16.c | 24 ------------------------
lib/librte_table/rte_table_hash_key32.c | 24 ------------------------
lib/librte_table/rte_table_hash_key8.c | 24 ------------------------
lib/librte_table/rte_table_hash_lru.c | 13 -------------
lib/librte_table/rte_table_lpm.c | 4 ----
lib/librte_table/rte_table_lpm_ipv6.c | 4 ----
10 files changed, 14 insertions(+), 130 deletions(-)
diff --git a/lib/librte_pipeline/rte_pipeline.c b/lib/librte_pipeline/rte_pipeline.c
index 36d92c9..b777cf1 100644
--- a/lib/librte_pipeline/rte_pipeline.c
+++ b/lib/librte_pipeline/rte_pipeline.c
@@ -175,14 +175,6 @@ rte_pipeline_check_params(struct rte_pipeline_params *params)
return -EINVAL;
}
- /* offset_port_id */
- if (params->offset_port_id & 0x3) {
- RTE_LOG(ERR, PIPELINE,
- "%s: Incorrect value for parameter offset_port_id\n",
- __func__);
- return -EINVAL;
- }
-
return 0;
}
diff --git a/lib/librte_port/rte_port.h b/lib/librte_port/rte_port.h
index d84e5a1..c3a0cca 100644
--- a/lib/librte_port/rte_port.h
+++ b/lib/librte_port/rte_port.h
@@ -54,23 +54,23 @@ extern "C" {
* Macros to allow accessing metadata stored in the mbuf headroom
* just beyond the end of the mbuf data structure returned by a port
*/
-#define RTE_MBUF_METADATA_UINT8(mbuf, offset) \
- (((uint8_t *)&(mbuf)[1])[offset])
-#define RTE_MBUF_METADATA_UINT16(mbuf, offset) \
- (((uint16_t *)&(mbuf)[1])[offset/sizeof(uint16_t)])
-#define RTE_MBUF_METADATA_UINT32(mbuf, offset) \
- (((uint32_t *)&(mbuf)[1])[offset/sizeof(uint32_t)])
-#define RTE_MBUF_METADATA_UINT64(mbuf, offset) \
- (((uint64_t *)&(mbuf)[1])[offset/sizeof(uint64_t)])
-
#define RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset) \
- (&RTE_MBUF_METADATA_UINT8(mbuf, offset))
+ (&((uint8_t *) &(mbuf)[1])[offset])
#define RTE_MBUF_METADATA_UINT16_PTR(mbuf, offset) \
- (&RTE_MBUF_METADATA_UINT16(mbuf, offset))
+ ((uint16_t *) RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset))
#define RTE_MBUF_METADATA_UINT32_PTR(mbuf, offset) \
- (&RTE_MBUF_METADATA_UINT32(mbuf, offset))
+ ((uint32_t *) RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset))
#define RTE_MBUF_METADATA_UINT64_PTR(mbuf, offset) \
- (&RTE_MBUF_METADATA_UINT64(mbuf, offset))
+ ((uint64_t *) RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset))
+
+#define RTE_MBUF_METADATA_UINT8(mbuf, offset) \
+ (* RTE_MBUF_METADATA_UINT8_PTR(mbuf, offset))
+#define RTE_MBUF_METADATA_UINT16(mbuf, offset) \
+ (* RTE_MBUF_METADATA_UINT16_PTR(mbuf, offset))
+#define RTE_MBUF_METADATA_UINT32(mbuf, offset) \
+ (* RTE_MBUF_METADATA_UINT32_PTR(mbuf, offset))
+#define RTE_MBUF_METADATA_UINT64(mbuf, offset) \
+ (* RTE_MBUF_METADATA_UINT64_PTR(mbuf, offset))
/**@}*/
/*
diff --git a/lib/librte_table/rte_table_array.c b/lib/librte_table/rte_table_array.c
index c031070..b00ca67 100644
--- a/lib/librte_table/rte_table_array.c
+++ b/lib/librte_table/rte_table_array.c
@@ -66,10 +66,8 @@ rte_table_array_create(void *params, int socket_id, uint32_t entry_size)
/* Check input parameters */
if ((p == NULL) ||
(p->n_entries == 0) ||
- (!rte_is_power_of_2(p->n_entries)) ||
- ((p->offset & 0x3) != 0)) {
+ (!rte_is_power_of_2(p->n_entries)))
return NULL;
- }
/* Memory allocation */
total_cl_size = (sizeof(struct rte_table_array) +
diff --git a/lib/librte_table/rte_table_hash_ext.c b/lib/librte_table/rte_table_hash_ext.c
index 66e416b..73beeaf 100644
--- a/lib/librte_table/rte_table_hash_ext.c
+++ b/lib/librte_table/rte_table_hash_ext.c
@@ -149,19 +149,6 @@ check_params_create(struct rte_table_hash_ext_params *params)
return -EINVAL;
}
- /* signature offset */
- if ((params->signature_offset & 0x3) != 0) {
- RTE_LOG(ERR, TABLE, "%s: signature_offset invalid value\n",
- __func__);
- return -EINVAL;
- }
-
- /* key offset */
- if ((params->key_offset & 0x7) != 0) {
- RTE_LOG(ERR, TABLE, "%s: key_offset invalid value\n", __func__);
- return -EINVAL;
- }
-
return 0;
}
diff --git a/lib/librte_table/rte_table_hash_key16.c b/lib/librte_table/rte_table_hash_key16.c
index f87ea0e..67a4249 100644
--- a/lib/librte_table/rte_table_hash_key16.c
+++ b/lib/librte_table/rte_table_hash_key16.c
@@ -89,18 +89,6 @@ check_params_create_lru(struct rte_table_hash_key16_lru_params *params) {
return -EINVAL;
}
- /* signature offset */
- if ((params->signature_offset & 0x3) != 0) {
- RTE_LOG(ERR, TABLE, "%s: invalid signature_offset\n", __func__);
- return -EINVAL;
- }
-
- /* key offset */
- if ((params->key_offset & 0x7) != 0) {
- RTE_LOG(ERR, TABLE, "%s: invalid key_offset\n", __func__);
- return -EINVAL;
- }
-
/* f_hash */
if (params->f_hash == NULL) {
RTE_LOG(ERR, TABLE,
@@ -307,18 +295,6 @@ check_params_create_ext(struct rte_table_hash_key16_ext_params *params) {
return -EINVAL;
}
- /* signature offset */
- if ((params->signature_offset & 0x3) != 0) {
- RTE_LOG(ERR, TABLE, "%s: invalid signature offset\n", __func__);
- return -EINVAL;
- }
-
- /* key offset */
- if ((params->key_offset & 0x7) != 0) {
- RTE_LOG(ERR, TABLE, "%s: invalid key offset\n", __func__);
- return -EINVAL;
- }
-
/* f_hash */
if (params->f_hash == NULL) {
RTE_LOG(ERR, TABLE,
diff --git a/lib/librte_table/rte_table_hash_key32.c b/lib/librte_table/rte_table_hash_key32.c
index 6790594..1fdb75d 100644
--- a/lib/librte_table/rte_table_hash_key32.c
+++ b/lib/librte_table/rte_table_hash_key32.c
@@ -89,18 +89,6 @@ check_params_create_lru(struct rte_table_hash_key32_lru_params *params) {
return -EINVAL;
}
- /* signature offset */
- if ((params->signature_offset & 0x3) != 0) {
- RTE_LOG(ERR, TABLE, "%s: invalid signature offset\n", __func__);
- return -EINVAL;
- }
-
- /* key offset */
- if ((params->key_offset & 0x7) != 0) {
- RTE_LOG(ERR, TABLE, "%s: invalid key offset\n", __func__);
- return -EINVAL;
- }
-
/* f_hash */
if (params->f_hash == NULL) {
RTE_LOG(ERR, TABLE, "%s: f_hash function pointer is NULL\n",
@@ -309,18 +297,6 @@ check_params_create_ext(struct rte_table_hash_key32_ext_params *params) {
return -EINVAL;
}
- /* signature offset */
- if ((params->signature_offset & 0x3) != 0) {
- RTE_LOG(ERR, TABLE, "%s: invalid signature offset\n", __func__);
- return -EINVAL;
- }
-
- /* key offset */
- if ((params->key_offset & 0x7) != 0) {
- RTE_LOG(ERR, TABLE, "%s: invalid key offset\n", __func__);
- return -EINVAL;
- }
-
/* f_hash */
if (params->f_hash == NULL) {
RTE_LOG(ERR, TABLE, "%s: f_hash function pointer is NULL\n",
diff --git a/lib/librte_table/rte_table_hash_key8.c b/lib/librte_table/rte_table_hash_key8.c
index 6803eb2..4dfa3c8 100644
--- a/lib/librte_table/rte_table_hash_key8.c
+++ b/lib/librte_table/rte_table_hash_key8.c
@@ -86,18 +86,6 @@ check_params_create_lru(struct rte_table_hash_key8_lru_params *params) {
return -EINVAL;
}
- /* signature offset */
- if ((params->signature_offset & 0x3) != 0) {
- RTE_LOG(ERR, TABLE, "%s: invalid signature_offset\n", __func__);
- return -EINVAL;
- }
-
- /* key offset */
- if ((params->key_offset & 0x7) != 0) {
- RTE_LOG(ERR, TABLE, "%s: invalid key_offset\n", __func__);
- return -EINVAL;
- }
-
/* f_hash */
if (params->f_hash == NULL) {
RTE_LOG(ERR, TABLE, "%s: f_hash function pointer is NULL\n",
@@ -300,18 +288,6 @@ check_params_create_ext(struct rte_table_hash_key8_ext_params *params) {
return -EINVAL;
}
- /* signature offset */
- if ((params->signature_offset & 0x3) != 0) {
- RTE_LOG(ERR, TABLE, "%s: invalid signature_offset\n", __func__);
- return -EINVAL;
- }
-
- /* key offset */
- if ((params->key_offset & 0x7) != 0) {
- RTE_LOG(ERR, TABLE, "%s: invalid key_offset\n", __func__);
- return -EINVAL;
- }
-
/* f_hash */
if (params->f_hash == NULL) {
RTE_LOG(ERR, TABLE, "%s: f_hash function pointer is NULL\n",
diff --git a/lib/librte_table/rte_table_hash_lru.c b/lib/librte_table/rte_table_hash_lru.c
index c9a8afd..b5393f0 100644
--- a/lib/librte_table/rte_table_hash_lru.c
+++ b/lib/librte_table/rte_table_hash_lru.c
@@ -126,19 +126,6 @@ check_params_create(struct rte_table_hash_lru_params *params)
return -EINVAL;
}
- /* signature offset */
- if ((params->signature_offset & 0x3) != 0) {
- RTE_LOG(ERR, TABLE, "%s: signature_offset invalid value\n",
- __func__);
- return -EINVAL;
- }
-
- /* key offset */
- if ((params->key_offset & 0x7) != 0) {
- RTE_LOG(ERR, TABLE, "%s: key_offset invalid value\n", __func__);
- return -EINVAL;
- }
-
return 0;
}
diff --git a/lib/librte_table/rte_table_lpm.c b/lib/librte_table/rte_table_lpm.c
index 64c684d..3f60672 100644
--- a/lib/librte_table/rte_table_lpm.c
+++ b/lib/librte_table/rte_table_lpm.c
@@ -87,10 +87,6 @@ rte_table_lpm_create(void *params, int socket_id, uint32_t entry_size)
__func__);
return NULL;
}
- if ((p->offset & 0x3) != 0) {
- RTE_LOG(ERR, TABLE, "%s: Invalid offset\n", __func__);
- return NULL;
- }
entry_size = RTE_ALIGN(entry_size, sizeof(uint64_t));
diff --git a/lib/librte_table/rte_table_lpm_ipv6.c b/lib/librte_table/rte_table_lpm_ipv6.c
index ce4ddc0..df83ecf 100644
--- a/lib/librte_table/rte_table_lpm_ipv6.c
+++ b/lib/librte_table/rte_table_lpm_ipv6.c
@@ -93,10 +93,6 @@ rte_table_lpm_ipv6_create(void *params, int socket_id, uint32_t entry_size)
__func__);
return NULL;
}
- if ((p->offset & 0x3) != 0) {
- RTE_LOG(ERR, TABLE, "%s: Invalid offset\n", __func__);
- return NULL;
- }
entry_size = RTE_ALIGN(entry_size, sizeof(uint64_t));
--
2.1.0
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