Merge branch 'cxgb4-deadcode-removal'

Dr. David Alan Gilbert says:

====================
cxgb4: Deadcode removal

This is a bunch of deadcode removal in cxgb4.

It's all complete function removal rather than any actual change to
logic.

Build and boot tested, but I don't have the hardware to test
the actual card.
====================

Link: https://patch.msgid.link/20241013203831.88051-1-linux@treblig.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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

@@ -1608,7 +1608,6 @@ void t4_os_portmod_changed(struct adapter *adap, int port_id);
 void t4_os_link_changed(struct adapter *adap, int port_id, int link_stat);
 
 void t4_free_sge_resources(struct adapter *adap);
-void t4_free_ofld_rxqs(struct adapter *adap, int n, struct sge_ofld_rxq *q);
 irq_handler_t t4_intr_handler(struct adapter *adap);
 netdev_tx_t t4_start_xmit(struct sk_buff *skb, struct net_device *dev);
 int cxgb4_selftest_lb_pkt(struct net_device *netdev);
@@ -2141,28 +2140,6 @@ int cxgb4_free_mac_filt(struct adapter *adap, unsigned int viid,
 			unsigned int naddr, const u8 **addr, bool sleep_ok);
 int cxgb4_init_mps_ref_entries(struct adapter *adap);
 void cxgb4_free_mps_ref_entries(struct adapter *adap);
-int cxgb4_alloc_encap_mac_filt(struct adapter *adap, unsigned int viid,
-			       const u8 *addr, const u8 *mask,
-			       unsigned int vni, unsigned int vni_mask,
-			       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);
 int cxgb4_update_mac_filt(struct port_info *pi, unsigned int viid,
 			  int *tcam_idx, const u8 *addr,
 			  bool persistent, u8 *smt_idx);

drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c

@@ -2188,18 +2188,6 @@ void cxgb4_get_tcp_stats(struct pci_dev *pdev, struct tp_tcp_stats *v4,
 }
 EXPORT_SYMBOL(cxgb4_get_tcp_stats);
 
-void cxgb4_iscsi_init(struct net_device *dev, unsigned int tag_mask,
-		      const unsigned int *pgsz_order)
-{
-	struct adapter *adap = netdev2adap(dev);
-
-	t4_write_reg(adap, ULP_RX_ISCSI_TAGMASK_A, tag_mask);
-	t4_write_reg(adap, ULP_RX_ISCSI_PSZ_A, HPZ0_V(pgsz_order[0]) |
-		     HPZ1_V(pgsz_order[1]) | HPZ2_V(pgsz_order[2]) |
-		     HPZ3_V(pgsz_order[3]));
-}
-EXPORT_SYMBOL(cxgb4_iscsi_init);
-
 int cxgb4_flush_eq_cache(struct net_device *dev)
 {
 	struct adapter *adap = netdev2adap(dev);

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

@@ -28,28 +28,6 @@ static int cxgb4_mps_ref_dec_by_mac(struct adapter *adap,
 	return ret;
 }
 
-static int cxgb4_mps_ref_dec(struct adapter *adap, u16 idx)
-{
-	struct mps_entries_ref *mps_entry, *tmp;
-	int ret = -EINVAL;
-
-	spin_lock(&adap->mps_ref_lock);
-	list_for_each_entry_safe(mps_entry, tmp, &adap->mps_ref, list) {
-		if (mps_entry->idx == idx) {
-			if (!refcount_dec_and_test(&mps_entry->refcnt)) {
-				spin_unlock(&adap->mps_ref_lock);
-				return -EBUSY;
-			}
-			list_del(&mps_entry->list);
-			kfree(mps_entry);
-			ret = 0;
-			break;
-		}
-	}
-	spin_unlock(&adap->mps_ref_lock);
-	return ret;
-}
-
 static int cxgb4_mps_ref_inc(struct adapter *adap, const u8 *mac_addr,
 			     u16 idx, const u8 *mask)
 {
@@ -141,82 +119,6 @@ int cxgb4_update_mac_filt(struct port_info *pi, unsigned int viid,
 	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)
-{
-	int ret = 0;
-
-	if (!cxgb4_mps_ref_dec(adap, idx))
-		ret = t4_free_encap_mac_filt(adap, viid, idx, sleep_ok);
-
-	return ret;
-}
-
-int cxgb4_alloc_encap_mac_filt(struct adapter *adap, unsigned int viid,
-			       const u8 *addr, const u8 *mask,
-			       unsigned int vni, unsigned int vni_mask,
-			       u8 dip_hit, u8 lookup_type, bool sleep_ok)
-{
-	int ret;
-
-	ret = t4_alloc_encap_mac_filt(adap, viid, addr, mask, vni, vni_mask,
-				      dip_hit, lookup_type, sleep_ok);
-	if (ret < 0)
-		return ret;
-
-	if (cxgb4_mps_ref_inc(adap, addr, ret, mask)) {
-		ret = -ENOMEM;
-		t4_free_encap_mac_filt(adap, viid, ret, sleep_ok);
-	}
-	return ret;
-}
-
 int cxgb4_init_mps_ref_entries(struct adapter *adap)
 {
 	spin_lock_init(&adap->mps_ref_lock);

drivers/net/ethernet/chelsio/cxgb4/cxgb4_uld.h

@@ -518,8 +518,6 @@ unsigned int cxgb4_best_aligned_mtu(const unsigned short *mtus,
 				    unsigned int *mtu_idxp);
 void cxgb4_get_tcp_stats(struct pci_dev *pdev, struct tp_tcp_stats *v4,
 			 struct tp_tcp_stats *v6);
-void cxgb4_iscsi_init(struct net_device *dev, unsigned int tag_mask,
-		      const unsigned int *pgsz_order);
 struct sk_buff *cxgb4_pktgl_to_skb(const struct pkt_gl *gl,
 				   unsigned int skb_len, unsigned int pull_len);
 int cxgb4_sync_txq_pidx(struct net_device *dev, u16 qid, u16 pidx, u16 size);

drivers/net/ethernet/chelsio/cxgb4/l2t.c

@@ -608,25 +608,6 @@ struct l2t_entry *t4_l2t_alloc_switching(struct adapter *adap, u16 vlan,
 	return e;
 }
 
-/**
- * cxgb4_l2t_alloc_switching - Allocates an L2T entry for switch filters
- * @dev: net_device pointer
- * @vlan: VLAN Id
- * @port: Associated port
- * @dmac: Destination MAC address to add to L2T
- * Returns pointer to the allocated l2t entry
- *
- * Allocates an L2T entry for use by switching rule of a filter
- */
-struct l2t_entry *cxgb4_l2t_alloc_switching(struct net_device *dev, u16 vlan,
-					    u8 port, u8 *dmac)
-{
-	struct adapter *adap = netdev2adap(dev);
-
-	return t4_l2t_alloc_switching(adap, vlan, port, dmac);
-}
-EXPORT_SYMBOL(cxgb4_l2t_alloc_switching);
-
 struct l2t_data *t4_init_l2t(unsigned int l2t_start, unsigned int l2t_end)
 {
 	unsigned int l2t_size;

drivers/net/ethernet/chelsio/cxgb4/l2t.h

@@ -115,8 +115,6 @@ struct l2t_entry *cxgb4_l2t_get(struct l2t_data *d, struct neighbour *neigh,
 				unsigned int priority);
 u64 cxgb4_select_ntuple(struct net_device *dev,
 			const struct l2t_entry *l2t);
-struct l2t_entry *cxgb4_l2t_alloc_switching(struct net_device *dev, u16 vlan,
-					    u8 port, u8 *dmac);
 void t4_l2t_update(struct adapter *adap, struct neighbour *neigh);
 struct l2t_entry *t4_l2t_alloc_switching(struct adapter *adap, u16 vlan,
 					 u8 port, u8 *dmac);

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

@@ -4874,22 +4874,6 @@ void free_rspq_fl(struct adapter *adap, struct sge_rspq *rq,
 	}
 }
 
-/**
- *      t4_free_ofld_rxqs - free a block of consecutive Rx queues
- *      @adap: the adapter
- *      @n: number of queues
- *      @q: pointer to first queue
- *
- *      Release the resources of a consecutive block of offload Rx queues.
- */
-void t4_free_ofld_rxqs(struct adapter *adap, int n, struct sge_ofld_rxq *q)
-{
-	for ( ; n; n--, q++)
-		if (q->rspq.desc)
-			free_rspq_fl(adap, &q->rspq,
-				     q->fl.size ? &q->fl : NULL);
-}
-
 void t4_sge_free_ethofld_txq(struct adapter *adap, struct sge_eohw_txq *txq)
 {
 	if (txq->q.desc) {

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

@@ -51,64 +51,6 @@ struct srq_data *t4_init_srq(int srq_size)
 	return s;
 }
 
-/* cxgb4_get_srq_entry: read the SRQ table entry
- * @dev: Pointer to the net_device
- * @idx: Index to the srq
- * @entryp: pointer to the srq entry
- *
- * Sends CPL_SRQ_TABLE_REQ message for the given index.
- * Contents will be returned in CPL_SRQ_TABLE_RPL message.
- *
- * Returns zero if the read is successful, else a error
- * number will be returned. Caller should not use the srq
- * entry if the return value is non-zero.
- *
- *
- */
-int cxgb4_get_srq_entry(struct net_device *dev,
-			int srq_idx, struct srq_entry *entryp)
-{
-	struct cpl_srq_table_req *req;
-	struct adapter *adap;
-	struct sk_buff *skb;
-	struct srq_data *s;
-	int rc = -ENODEV;
-
-	adap = netdev2adap(dev);
-	s = adap->srq;
-
-	if (!(adap->flags & CXGB4_FULL_INIT_DONE) || !s)
-		goto out;
-
-	skb = alloc_skb(sizeof(*req), GFP_KERNEL);
-	if (!skb)
-		return -ENOMEM;
-	req = (struct cpl_srq_table_req *)
-		__skb_put_zero(skb, sizeof(*req));
-	INIT_TP_WR(req, 0);
-	OPCODE_TID(req) = htonl(MK_OPCODE_TID(CPL_SRQ_TABLE_REQ,
-					      TID_TID_V(srq_idx) |
-				TID_QID_V(adap->sge.fw_evtq.abs_id)));
-	req->idx = srq_idx;
-
-	mutex_lock(&s->lock);
-
-	s->entryp = entryp;
-	t4_mgmt_tx(adap, skb);
-
-	rc = wait_for_completion_timeout(&s->comp, SRQ_WAIT_TO);
-	if (rc)
-		rc = 0;
-	else /* !rc means we timed out */
-		rc = -ETIMEDOUT;
-
-	WARN_ON_ONCE(entryp->idx != srq_idx);
-	mutex_unlock(&s->lock);
-out:
-	return rc;
-}
-EXPORT_SYMBOL(cxgb4_get_srq_entry);
-
 void do_srq_table_rpl(struct adapter *adap,
 		      const struct cpl_srq_table_rpl *rpl)
 {

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

@@ -58,8 +58,6 @@ struct srq_data {
 };
 
 struct srq_data *t4_init_srq(int srq_size);
-int cxgb4_get_srq_entry(struct net_device *dev,
-			int srq_idx, struct srq_entry *entryp);
 void do_srq_table_rpl(struct adapter *adap,
 		      const struct cpl_srq_table_rpl *rpl);
 #endif  /* __CXGB4_SRQ_H */