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nfp: add set tcp and udp header action flower offload 

Previously we did not have offloading support for set TCP/UDP actions. This
patch enables TC flower offload of set TCP/UDP sport and dport actions.

Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pieter Jansen van Vuuren 2017-10-06 10:21:26 +02:00 committed by David S. Miller
parent 354b82bb32
commit f8b7b0a6b1
2 changed files with 51 additions and 0 deletions
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42
drivers/net/ethernet/netronome/nfp/flower/action.c
View File

@ -347,11 +347,40 @@ nfp_fl_set_ip6(const struct tc_action *action, int idx, u32 off,
return 0;
}
static int
nfp_fl_set_tport(const struct tc_action *action, int idx, u32 off,
struct nfp_fl_set_tport *set_tport, int opcode)
{
u32 exact, mask;
u16 tmp_set_op;
if (off)
return -EOPNOTSUPP;
mask = ~tcf_pedit_mask(action, idx);
exact = tcf_pedit_val(action, idx);
if (exact & ~mask)
return -EOPNOTSUPP;
nfp_fl_set_helper32(exact, mask, set_tport->tp_port_val,
set_tport->tp_port_mask);
set_tport->reserved = cpu_to_be16(0);
tmp_set_op = FIELD_PREP(NFP_FL_ACT_LEN_LW,
sizeof(*set_tport) >> NFP_FL_LW_SIZ);
tmp_set_op |= FIELD_PREP(NFP_FL_ACT_JMP_ID, opcode);
set_tport->a_op = cpu_to_be16(tmp_set_op);
return 0;
}
static int
nfp_fl_pedit(const struct tc_action *action, char *nfp_action, int *a_len)
{
struct nfp_fl_set_ipv6_addr set_ip6_dst, set_ip6_src;
struct nfp_fl_set_ip4_addrs set_ip_addr;
struct nfp_fl_set_tport set_tport;
struct nfp_fl_set_eth set_eth;
enum pedit_header_type htype;
int idx, nkeys, err;
@ -361,6 +390,7 @@ nfp_fl_pedit(const struct tc_action *action, char *nfp_action, int *a_len)
memset(&set_ip6_dst, 0, sizeof(set_ip6_dst));
memset(&set_ip6_src, 0, sizeof(set_ip6_src));
memset(&set_ip_addr, 0, sizeof(set_ip_addr));
memset(&set_tport, 0, sizeof(set_tport));
memset(&set_eth, 0, sizeof(set_eth));
nkeys = tcf_pedit_nkeys(action);
@ -383,6 +413,14 @@ nfp_fl_pedit(const struct tc_action *action, char *nfp_action, int *a_len)
err = nfp_fl_set_ip6(action, idx, offset, &set_ip6_dst,
&set_ip6_src);
break;
case TCA_PEDIT_KEY_EX_HDR_TYPE_TCP:
err = nfp_fl_set_tport(action, idx, offset, &set_tport,
NFP_FL_ACTION_OPCODE_SET_TCP);
break;
case TCA_PEDIT_KEY_EX_HDR_TYPE_UDP:
err = nfp_fl_set_tport(action, idx, offset, &set_tport,
NFP_FL_ACTION_OPCODE_SET_UDP);
break;
default:
return -EOPNOTSUPP;
}
@ -418,6 +456,10 @@ nfp_fl_pedit(const struct tc_action *action, char *nfp_action, int *a_len)
act_size = sizeof(set_ip6_src);
memcpy(nfp_action, &set_ip6_src, act_size);
*a_len += act_size;
} else if (set_tport.a_op) {
act_size = sizeof(set_tport);
memcpy(nfp_action, &set_tport, act_size);
*a_len += act_size;
}
return 0;

9
drivers/net/ethernet/netronome/nfp/flower/cmsg.h
View File

@ -81,6 +81,8 @@
#define NFP_FL_ACTION_OPCODE_SET_IPV4_ADDRS 9
#define NFP_FL_ACTION_OPCODE_SET_IPV6_SRC 11
#define NFP_FL_ACTION_OPCODE_SET_IPV6_DST 12
#define NFP_FL_ACTION_OPCODE_SET_UDP 14
#define NFP_FL_ACTION_OPCODE_SET_TCP 15
#define NFP_FL_ACTION_OPCODE_PRE_TUNNEL 17
#define NFP_FL_ACTION_OPCODE_NUM 32
@ -136,6 +138,13 @@ struct nfp_fl_set_ipv6_addr {
} ipv6[4];
};
struct nfp_fl_set_tport {
__be16 a_op;
__be16 reserved;
u8 tp_port_mask[4];
u8 tp_port_val[4];
};
struct nfp_fl_output {
__be16 a_op;
__be16 flags;