68 	struct smt_entry *e, *end;  in find_or_alloc_smte()  local
70 	for (e = &s->smtab[0], end = &s->smtab[s->smt_size]; e != end; ++e) {  in find_or_alloc_smte()
71 		if (e->refcnt == 0) {  in find_or_alloc_smte()
73 				first_free = e;  in find_or_alloc_smte()
75 			if (e->state == SMT_STATE_SWITCHING) {  in find_or_alloc_smte()
79 				if (memcmp(e->src_mac, smac, ETH_ALEN) == 0)  in find_or_alloc_smte()
86 		e = first_free;  in find_or_alloc_smte()
92 	e->state = SMT_STATE_UNUSED;  in find_or_alloc_smte()
95 	return e;  in find_or_alloc_smte()
98 static void t4_smte_free(struct smt_entry *e)  in t4_smte_free()  argument
100 	if (e->refcnt == 0) {  /* hasn't been recycled */  in t4_smte_free()
101 		e->state = SMT_STATE_UNUSED;  in t4_smte_free()
106  * @e: smt entry to release
110 void cxgb4_smt_release(struct smt_entry *e)  in cxgb4_smt_release()  argument
112 	spin_lock_bh(&e->lock);  in cxgb4_smt_release()
113 	if ((--e->refcnt) == 0)  in cxgb4_smt_release()
114 		t4_smte_free(e);  in cxgb4_smt_release()
115 	spin_unlock_bh(&e->lock);  in cxgb4_smt_release()
125 		struct smt_entry *e = &s->smtab[smtidx];  in do_smt_write_rpl()  local
130 		spin_lock(&e->lock);  in do_smt_write_rpl()
131 		e->state = SMT_STATE_ERROR;  in do_smt_write_rpl()
132 		spin_unlock(&e->lock);  in do_smt_write_rpl()
137 static int write_smt_entry(struct adapter *adapter, struct smt_entry *e)  in write_smt_entry()  argument
160 		row = (e->idx >> 1);  in write_smt_entry()
161 		if (e->idx & 1) {  in write_smt_entry()
163 			memcpy(req->src_mac1, e->src_mac, ETH_ALEN);  in write_smt_entry()
169 			memcpy(req->src_mac0, s->smtab[e->idx - 1].src_mac,  in write_smt_entry()
173 			memcpy(req->src_mac0, e->src_mac, ETH_ALEN);  in write_smt_entry()
179 			memcpy(req->src_mac1, s->smtab[e->idx + 1].src_mac,  in write_smt_entry()
194 		memcpy(req->src_mac0, s->smtab[e->idx].src_mac, ETH_ALEN);  in write_smt_entry()
195 		row = e->idx;  in write_smt_entry()
199 		htonl(MK_OPCODE_TID(CPL_SMT_WRITE_REQ, e->idx |  in write_smt_entry()
212 	struct smt_entry *e;  in t4_smt_alloc_switching()  local
215 	e = find_or_alloc_smte(s, smac);  in t4_smt_alloc_switching()
216 	if (e) {  in t4_smt_alloc_switching()
217 		spin_lock(&e->lock);  in t4_smt_alloc_switching()
218 		if (!e->refcnt) {  in t4_smt_alloc_switching()
219 			e->refcnt = 1;  in t4_smt_alloc_switching()
220 			e->state = SMT_STATE_SWITCHING;  in t4_smt_alloc_switching()
221 			e->pfvf = pfvf;  in t4_smt_alloc_switching()
222 			memcpy(e->src_mac, smac, ETH_ALEN);  in t4_smt_alloc_switching()
223 			write_smt_entry(adap, e);  in t4_smt_alloc_switching()
225 			++e->refcnt;  in t4_smt_alloc_switching()
227 		spin_unlock(&e->lock);  in t4_smt_alloc_switching()
230 	return e;  in t4_smt_alloc_switching()