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Date: Tue, 23 Jan 2018 18:45:58 -0800
From: Jakub Kicinski <jakub.kicinski@...ronome.com>
To: davem@...emloft.net, dsahern@...il.com, daniel@...earbox.net,
john.fastabend@...il.com, jiri@...nulli.us
Cc: netdev@...r.kernel.org, oss-drivers@...ronome.com,
aring@...atatu.com, Jakub Kicinski <jakub.kicinski@...ronome.com>
Subject: [PATCH net-next 02/12] net: sched: prepare for reimplementation of tc_cls_common_offload_init()
Rename tc_cls_common_offload_init() to tc_cls_common_offload_init__()
and add a new implementation which also takes flags argument. We will
only set extack if flags indicate that offload is forced (skip_sw)
otherwise driver errors should be ignored, as they don't influence
the overall filter installation.
Note that we need the tc_skip_hw() helper for new version, therefore
it is added later in the file.
Signed-off-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
Reviewed-by: Simon Horman <simon.horman@...ronome.com>
---
include/net/pkt_cls.h | 18 +++++++++++++++---
net/sched/cls_bpf.c | 4 ++--
net/sched/cls_flower.c | 6 +++---
net/sched/cls_matchall.c | 4 ++--
net/sched/cls_u32.c | 8 ++++----
5 files changed, 26 insertions(+), 14 deletions(-)
diff --git a/include/net/pkt_cls.h b/include/net/pkt_cls.h
index 2f8f16a4d88e..a899fbcfeccd 100644
--- a/include/net/pkt_cls.h
+++ b/include/net/pkt_cls.h
@@ -606,9 +606,9 @@ struct tc_cls_common_offload {
};
static inline void
-tc_cls_common_offload_init(struct tc_cls_common_offload *cls_common,
- const struct tcf_proto *tp,
- struct netlink_ext_ack *extack)
+tc_cls_common_offload_init__(struct tc_cls_common_offload *cls_common,
+ const struct tcf_proto *tp,
+ struct netlink_ext_ack *extack)
{
cls_common->chain_index = tp->chain->index;
cls_common->protocol = tp->protocol;
@@ -694,6 +694,18 @@ static inline bool tc_in_hw(u32 flags)
return (flags & TCA_CLS_FLAGS_IN_HW) ? true : false;
}
+static inline void
+tc_cls_common_offload_init(struct tc_cls_common_offload *cls_common,
+ const struct tcf_proto *tp, u32 flags,
+ struct netlink_ext_ack *extack)
+{
+ cls_common->chain_index = tp->chain->index;
+ cls_common->protocol = tp->protocol;
+ cls_common->prio = tp->prio;
+ if (tc_skip_sw(flags))
+ cls_common->extack = extack;
+}
+
enum tc_fl_command {
TC_CLSFLOWER_REPLACE,
TC_CLSFLOWER_DESTROY,
diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c
index a562b9a39e71..b03b303b35b6 100644
--- a/net/sched/cls_bpf.c
+++ b/net/sched/cls_bpf.c
@@ -159,7 +159,7 @@ static int cls_bpf_offload_cmd(struct tcf_proto *tp, struct cls_bpf_prog *prog,
skip_sw = prog && tc_skip_sw(prog->gen_flags);
obj = prog ?: oldprog;
- tc_cls_common_offload_init(&cls_bpf.common, tp, extack);
+ tc_cls_common_offload_init__(&cls_bpf.common, tp, extack);
cls_bpf.command = TC_CLSBPF_OFFLOAD;
cls_bpf.exts = &obj->exts;
cls_bpf.prog = prog ? prog->filter : NULL;
@@ -227,7 +227,7 @@ static void cls_bpf_offload_update_stats(struct tcf_proto *tp,
struct tcf_block *block = tp->chain->block;
struct tc_cls_bpf_offload cls_bpf = {};
- tc_cls_common_offload_init(&cls_bpf.common, tp, NULL);
+ tc_cls_common_offload_init__(&cls_bpf.common, tp, NULL);
cls_bpf.command = TC_CLSBPF_STATS;
cls_bpf.exts = &prog->exts;
cls_bpf.prog = prog->filter;
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index 213be0e6f1d1..d062ded18b92 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -223,7 +223,7 @@ static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f)
struct tc_cls_flower_offload cls_flower = {};
struct tcf_block *block = tp->chain->block;
- tc_cls_common_offload_init(&cls_flower.common, tp, NULL);
+ tc_cls_common_offload_init__(&cls_flower.common, tp, NULL);
cls_flower.command = TC_CLSFLOWER_DESTROY;
cls_flower.cookie = (unsigned long) f;
@@ -243,7 +243,7 @@ static int fl_hw_replace_filter(struct tcf_proto *tp,
bool skip_sw = tc_skip_sw(f->flags);
int err;
- tc_cls_common_offload_init(&cls_flower.common, tp, extack);
+ tc_cls_common_offload_init__(&cls_flower.common, tp, extack);
cls_flower.command = TC_CLSFLOWER_REPLACE;
cls_flower.cookie = (unsigned long) f;
cls_flower.dissector = dissector;
@@ -272,7 +272,7 @@ static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f)
struct tc_cls_flower_offload cls_flower = {};
struct tcf_block *block = tp->chain->block;
- tc_cls_common_offload_init(&cls_flower.common, tp, NULL);
+ tc_cls_common_offload_init__(&cls_flower.common, tp, NULL);
cls_flower.command = TC_CLSFLOWER_STATS;
cls_flower.cookie = (unsigned long) f;
cls_flower.exts = &f->exts;
diff --git a/net/sched/cls_matchall.c b/net/sched/cls_matchall.c
index 2de2338f4030..b57ebb507078 100644
--- a/net/sched/cls_matchall.c
+++ b/net/sched/cls_matchall.c
@@ -76,7 +76,7 @@ static void mall_destroy_hw_filter(struct tcf_proto *tp,
struct tc_cls_matchall_offload cls_mall = {};
struct tcf_block *block = tp->chain->block;
- tc_cls_common_offload_init(&cls_mall.common, tp, NULL);
+ tc_cls_common_offload_init__(&cls_mall.common, tp, NULL);
cls_mall.command = TC_CLSMATCHALL_DESTROY;
cls_mall.cookie = cookie;
@@ -94,7 +94,7 @@ static int mall_replace_hw_filter(struct tcf_proto *tp,
bool skip_sw = tc_skip_sw(head->flags);
int err;
- tc_cls_common_offload_init(&cls_mall.common, tp, extack);
+ tc_cls_common_offload_init__(&cls_mall.common, tp, extack);
cls_mall.command = TC_CLSMATCHALL_REPLACE;
cls_mall.exts = &head->exts;
cls_mall.cookie = cookie;
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index 98cabe835fd8..b4e72f3099d9 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -491,7 +491,7 @@ static void u32_clear_hw_hnode(struct tcf_proto *tp, struct tc_u_hnode *h)
struct tcf_block *block = tp->chain->block;
struct tc_cls_u32_offload cls_u32 = {};
- tc_cls_common_offload_init(&cls_u32.common, tp, NULL);
+ tc_cls_common_offload_init__(&cls_u32.common, tp, NULL);
cls_u32.command = TC_CLSU32_DELETE_HNODE;
cls_u32.hnode.divisor = h->divisor;
cls_u32.hnode.handle = h->handle;
@@ -509,7 +509,7 @@ static int u32_replace_hw_hnode(struct tcf_proto *tp, struct tc_u_hnode *h,
bool offloaded = false;
int err;
- tc_cls_common_offload_init(&cls_u32.common, tp, extack);
+ tc_cls_common_offload_init__(&cls_u32.common, tp, extack);
cls_u32.command = TC_CLSU32_NEW_HNODE;
cls_u32.hnode.divisor = h->divisor;
cls_u32.hnode.handle = h->handle;
@@ -534,7 +534,7 @@ static void u32_remove_hw_knode(struct tcf_proto *tp, struct tc_u_knode *n)
struct tcf_block *block = tp->chain->block;
struct tc_cls_u32_offload cls_u32 = {};
- tc_cls_common_offload_init(&cls_u32.common, tp, NULL);
+ tc_cls_common_offload_init__(&cls_u32.common, tp, NULL);
cls_u32.command = TC_CLSU32_DELETE_KNODE;
cls_u32.knode.handle = n->handle;
@@ -550,7 +550,7 @@ static int u32_replace_hw_knode(struct tcf_proto *tp, struct tc_u_knode *n,
bool skip_sw = tc_skip_sw(flags);
int err;
- tc_cls_common_offload_init(&cls_u32.common, tp, extack);
+ tc_cls_common_offload_init__(&cls_u32.common, tp, extack);
cls_u32.command = TC_CLSU32_REPLACE_KNODE;
cls_u32.knode.handle = n->handle;
cls_u32.knode.fshift = n->fshift;
--
2.15.1
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