From 5fab51581f6223adab8dc7b526fe1217eb3b7348 Mon Sep 17 00:00:00 2001 From: Raju Rangoju Date: Mon, 24 Jun 2019 23:05:33 +0530 Subject: [PATCH] cxgb4: Add MPS TCAM refcounting for raw mac filters This patch adds TCAM reference counting support for raw mac filters. Signed-off-by: Raju Rangoju Signed-off-by: David S. Miller --- drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 16 +++++++ .../net/ethernet/chelsio/cxgb4/cxgb4_mps.c | 46 +++++++++++++++++++ 2 files changed, 62 insertions(+) diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h index 39ccd4c64d48..c7ab57fd03be 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h @@ -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__ */ diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_mps.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_mps.c index b8a5375bf64d..b942748c7dfa 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_mps.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_mps.c @@ -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) { -- 2.30.2