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net: sched: prepare for reimplementation of tc_cls_common_offload_init()

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Rename the tc_cls_common_offload_init() helper function to
tc_cls_common_offload_init_deprecated() 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@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski 2018-01-24 12:54:14 -08:00 committed by David S. Miller
parent 715df5ecab
commit 34832e1c70
5 changed files with 26 additions and 14 deletions
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18
include/net/pkt_cls.h
View File

@ -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_deprecated(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,

4
net/sched/cls_bpf.c
View File

@ -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_deprecated(&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_deprecated(&cls_bpf.common, tp, NULL);
cls_bpf.command = TC_CLSBPF_STATS;
cls_bpf.exts = &prog->exts;
cls_bpf.prog = prog->filter;

6
net/sched/cls_flower.c
View File

@ -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_deprecated(&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_deprecated(&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_deprecated(&cls_flower.common, tp, NULL);
cls_flower.command = TC_CLSFLOWER_STATS;
cls_flower.cookie = (unsigned long) f;
cls_flower.exts = &f->exts;

4
net/sched/cls_matchall.c
View File

@ -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_deprecated(&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_deprecated(&cls_mall.common, tp, extack);
cls_mall.command = TC_CLSMATCHALL_REPLACE;
cls_mall.exts = &head->exts;
cls_mall.cookie = cookie;

8
net/sched/cls_u32.c
View File

@ -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_deprecated(&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_deprecated(&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_deprecated(&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_deprecated(&cls_u32.common, tp, extack);
cls_u32.command = TC_CLSU32_REPLACE_KNODE;
cls_u32.knode.handle = n->handle;
cls_u32.knode.fshift = n->fshift;