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From: Hyong Youb Kim <hyonkim@cisco.com>
To: Ferruh Yigit <ferruh.yigit@intel.com>
Cc: dev@dpdk.org, John Daley <johndale@cisco.com>,
Hyong Youb Kim <hyonkim@cisco.com>
Date: Sat, 2 Mar 2019 02:42:46 -0800
Message-Id: <20190302104251.32565-9-hyonkim@cisco.com>
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Subject: [dpdk-dev] [PATCH v2 08/13] net/enic: move arguments into struct
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There are many copy_item functions, all with the same arguments, which
makes it difficult to add/change arguments. Move the arguments into a
struct to help subsequent commits that will add/fix features. Also
remove self-explanatory verbose comments for these local functions.
These changes are purely mechanical and have no impact on
functionalities.
Signed-off-by: Hyong Youb Kim <hyonkim@cisco.com>
---
drivers/net/enic/enic_flow.c | 209 ++++++++++++++-----------------------------
1 file changed, 67 insertions(+), 142 deletions(-)
diff --git a/drivers/net/enic/enic_flow.c b/drivers/net/enic/enic_flow.c
index c6ed9e1b9..fda641b6f 100644
--- a/drivers/net/enic/enic_flow.c
+++ b/drivers/net/enic/enic_flow.c
@@ -23,11 +23,27 @@
rte_log(RTE_LOG_ ## level, enicpmd_logtype_flow, \
fmt "\n", ##args)
+/*
+ * Common arguments passed to copy_item functions. Use this structure
+ * so we can easily add new arguments.
+ * item: Item specification.
+ * filter: Partially filled in NIC filter structure.
+ * inner_ofst: If zero, this is an outer header. If non-zero, this is
+ * the offset into L5 where the header begins.
+ */
+struct copy_item_args {
+ const struct rte_flow_item *item;
+ struct filter_v2 *filter;
+ uint8_t *inner_ofst;
+};
+
+/* functions for copying items into enic filters */
+typedef int (enic_copy_item_fn)(struct copy_item_args *arg);
+
/** Info about how to copy items into enic filters. */
struct enic_items {
/** Function for copying and validating an item. */
- int (*copy_item)(const struct rte_flow_item *item,
- struct filter_v2 *enic_filter, u8 *inner_ofst);
+ enic_copy_item_fn *copy_item;
/** List of valid previous items. */
const enum rte_flow_item_type * const prev_items;
/** True if it's OK for this item to be the first item. For some NIC
@@ -49,10 +65,6 @@ typedef int (copy_action_fn)(struct enic *enic,
const struct rte_flow_action actions[],
struct filter_action_v2 *enic_action);
-/* functions for copying items into enic filters */
-typedef int(enic_copy_item_fn)(const struct rte_flow_item *item,
- struct filter_v2 *enic_filter, u8 *inner_ofst);
-
/** Action capabilities for various NICs. */
struct enic_action_cap {
/** list of valid actions */
@@ -340,20 +352,12 @@ mask_exact_match(const u8 *supported, const u8 *supplied,
return 1;
}
-/**
- * Copy IPv4 item into version 1 NIC filter.
- *
- * @param item[in]
- * Item specification.
- * @param enic_filter[out]
- * Partially filled in NIC filter structure.
- * @param inner_ofst[in]
- * Should always be 0 for version 1.
- */
static int
-enic_copy_item_ipv4_v1(const struct rte_flow_item *item,
- struct filter_v2 *enic_filter, u8 *inner_ofst)
+enic_copy_item_ipv4_v1(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
+ uint8_t *inner_ofst = arg->inner_ofst;
const struct rte_flow_item_ipv4 *spec = item->spec;
const struct rte_flow_item_ipv4 *mask = item->mask;
struct filter_ipv4_5tuple *enic_5tup = &enic_filter->u.ipv4;
@@ -390,20 +394,12 @@ enic_copy_item_ipv4_v1(const struct rte_flow_item *item,
return 0;
}
-/**
- * Copy UDP item into version 1 NIC filter.
- *
- * @param item[in]
- * Item specification.
- * @param enic_filter[out]
- * Partially filled in NIC filter structure.
- * @param inner_ofst[in]
- * Should always be 0 for version 1.
- */
static int
-enic_copy_item_udp_v1(const struct rte_flow_item *item,
- struct filter_v2 *enic_filter, u8 *inner_ofst)
+enic_copy_item_udp_v1(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
+ uint8_t *inner_ofst = arg->inner_ofst;
const struct rte_flow_item_udp *spec = item->spec;
const struct rte_flow_item_udp *mask = item->mask;
struct filter_ipv4_5tuple *enic_5tup = &enic_filter->u.ipv4;
@@ -441,20 +437,12 @@ enic_copy_item_udp_v1(const struct rte_flow_item *item,
return 0;
}
-/**
- * Copy TCP item into version 1 NIC filter.
- *
- * @param item[in]
- * Item specification.
- * @param enic_filter[out]
- * Partially filled in NIC filter structure.
- * @param inner_ofst[in]
- * Should always be 0 for version 1.
- */
static int
-enic_copy_item_tcp_v1(const struct rte_flow_item *item,
- struct filter_v2 *enic_filter, u8 *inner_ofst)
+enic_copy_item_tcp_v1(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
+ uint8_t *inner_ofst = arg->inner_ofst;
const struct rte_flow_item_tcp *spec = item->spec;
const struct rte_flow_item_tcp *mask = item->mask;
struct filter_ipv4_5tuple *enic_5tup = &enic_filter->u.ipv4;
@@ -492,21 +480,12 @@ enic_copy_item_tcp_v1(const struct rte_flow_item *item,
return 0;
}
-/**
- * Copy ETH item into version 2 NIC filter.
- *
- * @param item[in]
- * Item specification.
- * @param enic_filter[out]
- * Partially filled in NIC filter structure.
- * @param inner_ofst[in]
- * If zero, this is an outer header. If non-zero, this is the offset into L5
- * where the header begins.
- */
static int
-enic_copy_item_eth_v2(const struct rte_flow_item *item,
- struct filter_v2 *enic_filter, u8 *inner_ofst)
+enic_copy_item_eth_v2(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
+ uint8_t *inner_ofst = arg->inner_ofst;
struct ether_hdr enic_spec;
struct ether_hdr enic_mask;
const struct rte_flow_item_eth *spec = item->spec;
@@ -555,21 +534,12 @@ enic_copy_item_eth_v2(const struct rte_flow_item *item,
return 0;
}
-/**
- * Copy VLAN item into version 2 NIC filter.
- *
- * @param item[in]
- * Item specification.
- * @param enic_filter[out]
- * Partially filled in NIC filter structure.
- * @param inner_ofst[in]
- * If zero, this is an outer header. If non-zero, this is the offset into L5
- * where the header begins.
- */
static int
-enic_copy_item_vlan_v2(const struct rte_flow_item *item,
- struct filter_v2 *enic_filter, u8 *inner_ofst)
+enic_copy_item_vlan_v2(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
+ uint8_t *inner_ofst = arg->inner_ofst;
const struct rte_flow_item_vlan *spec = item->spec;
const struct rte_flow_item_vlan *mask = item->mask;
struct filter_generic_1 *gp = &enic_filter->u.generic_1;
@@ -612,20 +582,12 @@ enic_copy_item_vlan_v2(const struct rte_flow_item *item,
return 0;
}
-/**
- * Copy IPv4 item into version 2 NIC filter.
- *
- * @param item[in]
- * Item specification.
- * @param enic_filter[out]
- * Partially filled in NIC filter structure.
- * @param inner_ofst[in]
- * Must be 0. Don't support inner IPv4 filtering.
- */
static int
-enic_copy_item_ipv4_v2(const struct rte_flow_item *item,
- struct filter_v2 *enic_filter, u8 *inner_ofst)
+enic_copy_item_ipv4_v2(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
+ uint8_t *inner_ofst = arg->inner_ofst;
const struct rte_flow_item_ipv4 *spec = item->spec;
const struct rte_flow_item_ipv4 *mask = item->mask;
struct filter_generic_1 *gp = &enic_filter->u.generic_1;
@@ -662,20 +624,12 @@ enic_copy_item_ipv4_v2(const struct rte_flow_item *item,
return 0;
}
-/**
- * Copy IPv6 item into version 2 NIC filter.
- *
- * @param item[in]
- * Item specification.
- * @param enic_filter[out]
- * Partially filled in NIC filter structure.
- * @param inner_ofst[in]
- * Must be 0. Don't support inner IPv6 filtering.
- */
static int
-enic_copy_item_ipv6_v2(const struct rte_flow_item *item,
- struct filter_v2 *enic_filter, u8 *inner_ofst)
+enic_copy_item_ipv6_v2(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
+ uint8_t *inner_ofst = arg->inner_ofst;
const struct rte_flow_item_ipv6 *spec = item->spec;
const struct rte_flow_item_ipv6 *mask = item->mask;
struct filter_generic_1 *gp = &enic_filter->u.generic_1;
@@ -712,20 +666,12 @@ enic_copy_item_ipv6_v2(const struct rte_flow_item *item,
return 0;
}
-/**
- * Copy UDP item into version 2 NIC filter.
- *
- * @param item[in]
- * Item specification.
- * @param enic_filter[out]
- * Partially filled in NIC filter structure.
- * @param inner_ofst[in]
- * Must be 0. Don't support inner UDP filtering.
- */
static int
-enic_copy_item_udp_v2(const struct rte_flow_item *item,
- struct filter_v2 *enic_filter, u8 *inner_ofst)
+enic_copy_item_udp_v2(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
+ uint8_t *inner_ofst = arg->inner_ofst;
const struct rte_flow_item_udp *spec = item->spec;
const struct rte_flow_item_udp *mask = item->mask;
struct filter_generic_1 *gp = &enic_filter->u.generic_1;
@@ -762,20 +708,12 @@ enic_copy_item_udp_v2(const struct rte_flow_item *item,
return 0;
}
-/**
- * Copy TCP item into version 2 NIC filter.
- *
- * @param item[in]
- * Item specification.
- * @param enic_filter[out]
- * Partially filled in NIC filter structure.
- * @param inner_ofst[in]
- * Must be 0. Don't support inner TCP filtering.
- */
static int
-enic_copy_item_tcp_v2(const struct rte_flow_item *item,
- struct filter_v2 *enic_filter, u8 *inner_ofst)
+enic_copy_item_tcp_v2(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
+ uint8_t *inner_ofst = arg->inner_ofst;
const struct rte_flow_item_tcp *spec = item->spec;
const struct rte_flow_item_tcp *mask = item->mask;
struct filter_generic_1 *gp = &enic_filter->u.generic_1;
@@ -812,20 +750,12 @@ enic_copy_item_tcp_v2(const struct rte_flow_item *item,
return 0;
}
-/**
- * Copy SCTP item into version 2 NIC filter.
- *
- * @param item[in]
- * Item specification.
- * @param enic_filter[out]
- * Partially filled in NIC filter structure.
- * @param inner_ofst[in]
- * Must be 0. Don't support inner SCTP filtering.
- */
static int
-enic_copy_item_sctp_v2(const struct rte_flow_item *item,
- struct filter_v2 *enic_filter, u8 *inner_ofst)
+enic_copy_item_sctp_v2(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
+ uint8_t *inner_ofst = arg->inner_ofst;
const struct rte_flow_item_sctp *spec = item->spec;
const struct rte_flow_item_sctp *mask = item->mask;
struct filter_generic_1 *gp = &enic_filter->u.generic_1;
@@ -874,20 +804,12 @@ enic_copy_item_sctp_v2(const struct rte_flow_item *item,
return 0;
}
-/**
- * Copy UDP item into version 2 NIC filter.
- *
- * @param item[in]
- * Item specification.
- * @param enic_filter[out]
- * Partially filled in NIC filter structure.
- * @param inner_ofst[in]
- * Must be 0. VxLAN headers always start at the beginning of L5.
- */
static int
-enic_copy_item_vxlan_v2(const struct rte_flow_item *item,
- struct filter_v2 *enic_filter, u8 *inner_ofst)
+enic_copy_item_vxlan_v2(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
+ uint8_t *inner_ofst = arg->inner_ofst;
const struct rte_flow_item_vxlan *spec = item->spec;
const struct rte_flow_item_vxlan *mask = item->mask;
struct filter_generic_1 *gp = &enic_filter->u.generic_1;
@@ -966,13 +888,15 @@ enic_copy_filter(const struct rte_flow_item pattern[],
u8 inner_ofst = 0; /* If encapsulated, ofst into L5 */
enum rte_flow_item_type prev_item;
const struct enic_items *item_info;
-
+ struct copy_item_args args;
u8 is_first_item = 1;
FLOW_TRACE();
prev_item = 0;
+ args.filter = enic_filter;
+ args.inner_ofst = &inner_ofst;
for (; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
/* Get info about how to validate and copy the item. If NULL
* is returned the nic does not support the item.
@@ -993,7 +917,8 @@ enic_copy_filter(const struct rte_flow_item pattern[],
if (!item_stacking_valid(prev_item, item_info, is_first_item))
goto stacking_error;
- ret = item_info->copy_item(item, enic_filter, &inner_ofst);
+ args.item = item;
+ ret = item_info->copy_item(&args);
if (ret)
goto item_not_supported;
prev_item = item->type;
--
2.16.2