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cxgb4: Add MPS TCAM refcounting for raw mac filters

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This patch adds TCAM reference counting
support for raw mac filters.

Signed-off-by: Raju Rangoju <rajur@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Raju Rangoju 2019-06-24 23:05:33 +05:30 • committed by David S. Miller
parent 28b3870578
commit 5fab51581f
2 changed files with 62 additions and 0 deletions
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16
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
View file

@ -1919,5 +1919,21 @@ int cxgb4_alloc_encap_mac_filt(struct adapter *adap, unsigned int viid,
u8 dip_hit, u8 lookup_type, bool sleep_ok);
int cxgb4_free_encap_mac_filt(struct adapter *adap, unsigned int viid,
int idx, bool sleep_ok);
int cxgb4_free_raw_mac_filt(struct adapter *adap,
unsigned int viid,
const u8 *addr,
const u8 *mask,
unsigned int idx,
u8 lookup_type,
u8 port_id,
bool sleep_ok);
int cxgb4_alloc_raw_mac_filt(struct adapter *adap,
unsigned int viid,
const u8 *addr,
const u8 *mask,
unsigned int idx,
u8 lookup_type,
u8 port_id,
bool sleep_ok);
#endif /* __CXGB4_H__ */

46
drivers/net/ethernet/chelsio/cxgb4/cxgb4_mps.c
View file

@ -54,6 +54,52 @@ unlock:
return ret;
}
int cxgb4_free_raw_mac_filt(struct adapter *adap,
unsigned int viid,
const u8 *addr,
const u8 *mask,
unsigned int idx,
u8 lookup_type,
u8 port_id,
bool sleep_ok)
{
int ret = 0;
if (!cxgb4_mps_ref_dec(adap, idx))
ret = t4_free_raw_mac_filt(adap, viid, addr,
mask, idx, lookup_type,
port_id, sleep_ok);
return ret;
}
int cxgb4_alloc_raw_mac_filt(struct adapter *adap,
unsigned int viid,
const u8 *addr,
const u8 *mask,
unsigned int idx,
u8 lookup_type,
u8 port_id,
bool sleep_ok)
{
int ret;
ret = t4_alloc_raw_mac_filt(adap, viid, addr,
mask, idx, lookup_type,
port_id, sleep_ok);
if (ret < 0)
return ret;
if (cxgb4_mps_ref_inc(adap, addr, ret, mask)) {
ret = -ENOMEM;
t4_free_raw_mac_filt(adap, viid, addr,
mask, idx, lookup_type,
port_id, sleep_ok);
}
return ret;
}
int cxgb4_free_encap_mac_filt(struct adapter *adap, unsigned int viid,
int idx, bool sleep_ok)
{