Commit 5fab5158 authored by Raju Rangoju's avatar Raju Rangoju Committed by David S. Miller
Browse files

cxgb4: Add MPS TCAM refcounting for raw mac filters 



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

Signed-off-by: default avatarRaju Rangoju <rajur@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 28b38705

drivers/net/ethernet/chelsio/cxgb4/cxgb4.h

+16 −0
Original line number Diff line number Diff line
@@ -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__ */

drivers/net/ethernet/chelsio/cxgb4/cxgb4_mps.c

+46 −0
Original line number Diff line number Diff line
@@ -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)

{

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