Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:

 1) Add Maglev hashing scheduler to IPVS, from Inju Song.

 2) Lots of new TC subsystem tests from Roman Mashak.

 3) Add TCP zero copy receive and fix delayed acks and autotuning with
    SO_RCVLOWAT, from Eric Dumazet.

 4) Add XDP_REDIRECT support to mlx5 driver, from Jesper Dangaard
    Brouer.

 5) Add ttl inherit support to vxlan, from Hangbin Liu.

 6) Properly separate ipv6 routes into their logically independant
    components. fib6_info for the routing table, and fib6_nh for sets of
    nexthops, which thus can be shared. From David Ahern.

 7) Add bpf_xdp_adjust_tail helper, which can be used to generate ICMP
    messages from XDP programs. From Nikita V. Shirokov.

 8) Lots of long overdue cleanups to the r8169 driver, from Heiner
    Kallweit.

 9) Add BTF ("BPF Type Format"), from Martin KaFai Lau.

10) Add traffic condition monitoring to iwlwifi, from Luca Coelho.

11) Plumb extack down into fib_rules, from Roopa Prabhu.

12) Add Flower classifier offload support to igb, from Vinicius Costa
    Gomes.

13) Add UDP GSO support, from Willem de Bruijn.

14) Add documentation for eBPF helpers, from Quentin Monnet.

15) Add TLS tx offload to mlx5, from Ilya Lesokhin.

16) Allow applications to be given the number of bytes available to read
    on a socket via a control message returned from recvmsg(), from
    Soheil Hassas Yeganeh.

17) Add x86_32 eBPF JIT compiler, from Wang YanQing.

18) Add AF_XDP sockets, with zerocopy support infrastructure as well.
    From Björn Töpel.

19) Remove indirect load support from all of the BPF JITs and handle
    these operations in the verifier by translating them into native BPF
    instead. From Daniel Borkmann.

20) Add GRO support to ipv6 gre tunnels, from Eran Ben Elisha.

21) Allow XDP programs to do lookups in the main kernel routing tables
    for forwarding. From David Ahern.

22) Allow drivers to store hardware state into an ELF section of kernel
    dump vmcore files, and use it in cxgb4. From Rahul Lakkireddy.

23) Various RACK and loss detection improvements in TCP, from Yuchung
    Cheng.

24) Add TCP SACK compression, from Eric Dumazet.

25) Add User Mode Helper support and basic bpfilter infrastructure, from
    Alexei Starovoitov.

26) Support ports and protocol values in RTM_GETROUTE, from Roopa
    Prabhu.

27) Support bulking in ->ndo_xdp_xmit() API, from Jesper Dangaard
    Brouer.

28) Add lots of forwarding selftests, from Petr Machata.

29) Add generic network device failover driver, from Sridhar Samudrala.

* ra.kernel.org:/pub/scm/linux/kernel/git/davem/net-next: (1959 commits)
  strparser: Add __strp_unpause and use it in ktls.
  rxrpc: Fix terminal retransmission connection ID to include the channel
  net: hns3: Optimize PF CMDQ interrupt switching process
  net: hns3: Fix for VF mailbox receiving unknown message
  net: hns3: Fix for VF mailbox cannot receiving PF response
  bnx2x: use the right constant
  Revert "net: sched: cls: Fix offloading when ingress dev is vxlan"
  net: dsa: b53: Fix for brcm tag issue in Cygnus SoC
  enic: fix UDP rss bits
  netdev-FAQ: clarify DaveM's position for stable backports
  rtnetlink: validate attributes in do_setlink()
  mlxsw: Add extack messages for port_{un, }split failures
  netdevsim: Add extack error message for devlink reload
  devlink: Add extack to reload and port_{un, }split operations
  net: metrics: add proper netlink validation
  ipmr: fix error path when ipmr_new_table fails
  ip6mr: only set ip6mr_table from setsockopt when ip6mr_new_table succeeds
  net: hns3: remove unused hclgevf_cfg_func_mta_filter
  netfilter: provide udp*_lib_lookup for nf_tproxy
  qed*: Utilize FW 8.37.2.0
  ...

1 files changed, 260 insertions, 9 deletions

diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index b9def7bace2fb..3b96a43fbda41 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -1,6 +1,7 @@
 /*
  * Copyright (c) 2005-2011 Atheros Communications Inc.
  * Copyright (c) 2011-2017 Qualcomm Atheros, Inc.
+ * Copyright (c) 2018 The Linux Foundation. All rights reserved.
  *
  * Permission to use, copy, modify, and/or distribute this software for any
  * purpose with or without fee is hereby granted, provided that the above
@@ -58,6 +59,74 @@
  * the buffer is sent/received.
  */
 
+static inline u32 shadow_sr_wr_ind_addr(struct ath10k *ar,
+					struct ath10k_ce_pipe *ce_state)
+{
+	u32 ce_id = ce_state->id;
+	u32 addr = 0;
+
+	switch (ce_id) {
+	case 0:
+		addr = 0x00032000;
+		break;
+	case 3:
+		addr = 0x0003200C;
+		break;
+	case 4:
+		addr = 0x00032010;
+		break;
+	case 5:
+		addr = 0x00032014;
+		break;
+	case 7:
+		addr = 0x0003201C;
+		break;
+	default:
+		ath10k_warn(ar, "invalid CE id: %d", ce_id);
+		break;
+	}
+	return addr;
+}
+
+static inline u32 shadow_dst_wr_ind_addr(struct ath10k *ar,
+					 struct ath10k_ce_pipe *ce_state)
+{
+	u32 ce_id = ce_state->id;
+	u32 addr = 0;
+
+	switch (ce_id) {
+	case 1:
+		addr = 0x00032034;
+		break;
+	case 2:
+		addr = 0x00032038;
+		break;
+	case 5:
+		addr = 0x00032044;
+		break;
+	case 7:
+		addr = 0x0003204C;
+		break;
+	case 8:
+		addr = 0x00032050;
+		break;
+	case 9:
+		addr = 0x00032054;
+		break;
+	case 10:
+		addr = 0x00032058;
+		break;
+	case 11:
+		addr = 0x0003205C;
+		break;
+	default:
+		ath10k_warn(ar, "invalid CE id: %d", ce_id);
+		break;
+	}
+
+	return addr;
+}
+
 static inline unsigned int
 ath10k_set_ring_byte(unsigned int offset,
 		     struct ath10k_hw_ce_regs_addr_map *addr_map)
@@ -116,11 +185,46 @@ static inline u32 ath10k_ce_src_ring_write_index_get(struct ath10k *ar,
 				ar->hw_ce_regs->sr_wr_index_addr);
 }
 
+static inline u32 ath10k_ce_src_ring_read_index_from_ddr(struct ath10k *ar,
+							 u32 ce_id)
+{
+	struct ath10k_ce *ce = ath10k_ce_priv(ar);
+
+	return ce->vaddr_rri[ce_id] & CE_DDR_RRI_MASK;
+}
+
 static inline u32 ath10k_ce_src_ring_read_index_get(struct ath10k *ar,
 						    u32 ce_ctrl_addr)
 {
-	return ath10k_ce_read32(ar, ce_ctrl_addr +
-				ar->hw_ce_regs->current_srri_addr);
+	struct ath10k_ce *ce = ath10k_ce_priv(ar);
+	u32 ce_id = COPY_ENGINE_ID(ce_ctrl_addr);
+	struct ath10k_ce_pipe *ce_state = &ce->ce_states[ce_id];
+	u32 index;
+
+	if (ar->hw_params.rri_on_ddr &&
+	    (ce_state->attr_flags & CE_ATTR_DIS_INTR))
+		index = ath10k_ce_src_ring_read_index_from_ddr(ar, ce_id);
+	else
+		index = ath10k_ce_read32(ar, ce_ctrl_addr +
+					 ar->hw_ce_regs->current_srri_addr);
+
+	return index;
+}
+
+static inline void
+ath10k_ce_shadow_src_ring_write_index_set(struct ath10k *ar,
+					  struct ath10k_ce_pipe *ce_state,
+					  unsigned int value)
+{
+	ath10k_ce_write32(ar, shadow_sr_wr_ind_addr(ar, ce_state), value);
+}
+
+static inline void
+ath10k_ce_shadow_dest_ring_write_index_set(struct ath10k *ar,
+					   struct ath10k_ce_pipe *ce_state,
+					   unsigned int value)
+{
+	ath10k_ce_write32(ar, shadow_dst_wr_ind_addr(ar, ce_state), value);
 }
 
 static inline void ath10k_ce_src_ring_base_addr_set(struct ath10k *ar,
@@ -181,11 +285,31 @@ static inline void ath10k_ce_dest_ring_byte_swap_set(struct ath10k *ar,
 			  ath10k_set_ring_byte(n, ctrl_regs->dst_ring));
 }
 
+static inline
+	u32 ath10k_ce_dest_ring_read_index_from_ddr(struct ath10k *ar, u32 ce_id)
+{
+	struct ath10k_ce *ce = ath10k_ce_priv(ar);
+
+	return (ce->vaddr_rri[ce_id] >> CE_DDR_DRRI_SHIFT) &
+		CE_DDR_RRI_MASK;
+}
+
 static inline u32 ath10k_ce_dest_ring_read_index_get(struct ath10k *ar,
 						     u32 ce_ctrl_addr)
 {
-	return ath10k_ce_read32(ar, ce_ctrl_addr +
-				ar->hw_ce_regs->current_drri_addr);
+	struct ath10k_ce *ce = ath10k_ce_priv(ar);
+	u32 ce_id = COPY_ENGINE_ID(ce_ctrl_addr);
+	struct ath10k_ce_pipe *ce_state = &ce->ce_states[ce_id];
+	u32 index;
+
+	if (ar->hw_params.rri_on_ddr &&
+	    (ce_state->attr_flags & CE_ATTR_DIS_INTR))
+		index = ath10k_ce_dest_ring_read_index_from_ddr(ar, ce_id);
+	else
+		index = ath10k_ce_read32(ar, ce_ctrl_addr +
+					 ar->hw_ce_regs->current_drri_addr);
+
+	return index;
 }
 
 static inline void ath10k_ce_dest_ring_base_addr_set(struct ath10k *ar,
@@ -376,8 +500,14 @@ static int _ath10k_ce_send_nolock(struct ath10k_ce_pipe *ce_state,
 	write_index = CE_RING_IDX_INCR(nentries_mask, write_index);
 
 	/* WORKAROUND */
-	if (!(flags & CE_SEND_FLAG_GATHER))
-		ath10k_ce_src_ring_write_index_set(ar, ctrl_addr, write_index);
+	if (!(flags & CE_SEND_FLAG_GATHER)) {
+		if (ar->hw_params.shadow_reg_support)
+			ath10k_ce_shadow_src_ring_write_index_set(ar, ce_state,
+								  write_index);
+		else
+			ath10k_ce_src_ring_write_index_set(ar, ctrl_addr,
+							   write_index);
+	}
 
 	src_ring->write_index = write_index;
 exit:
@@ -395,7 +525,7 @@ static int _ath10k_ce_send_nolock_64(struct ath10k_ce_pipe *ce_state,
 	struct ath10k_ce_ring *src_ring = ce_state->src_ring;
 	struct ce_desc_64 *desc, sdesc;
 	unsigned int nentries_mask = src_ring->nentries_mask;
-	unsigned int sw_index = src_ring->sw_index;
+	unsigned int sw_index;
 	unsigned int write_index = src_ring->write_index;
 	u32 ctrl_addr = ce_state->ctrl_addr;
 	__le32 *addr;
@@ -409,6 +539,11 @@ static int _ath10k_ce_send_nolock_64(struct ath10k_ce_pipe *ce_state,
 		ath10k_warn(ar, "%s: send more we can (nbytes: %d, max: %d)\n",
 			    __func__, nbytes, ce_state->src_sz_max);
 
+	if (ar->hw_params.rri_on_ddr)
+		sw_index = ath10k_ce_src_ring_read_index_from_ddr(ar, ce_state->id);
+	else
+		sw_index = src_ring->sw_index;
+
 	if (unlikely(CE_RING_DELTA(nentries_mask,
 				   write_index, sw_index - 1) <= 0)) {
 		ret = -ENOSR;
@@ -464,6 +599,7 @@ int ath10k_ce_send_nolock(struct ath10k_ce_pipe *ce_state,
 	return ce_state->ops->ce_send_nolock(ce_state, per_transfer_context,
 				    buffer, nbytes, transfer_id, flags);
 }
+EXPORT_SYMBOL(ath10k_ce_send_nolock);
 
 void __ath10k_ce_send_revert(struct ath10k_ce_pipe *pipe)
 {
@@ -491,6 +627,7 @@ void __ath10k_ce_send_revert(struct ath10k_ce_pipe *pipe)
 
 	src_ring->per_transfer_context[src_ring->write_index] = NULL;
 }
+EXPORT_SYMBOL(__ath10k_ce_send_revert);
 
 int ath10k_ce_send(struct ath10k_ce_pipe *ce_state,
 		   void *per_transfer_context,
@@ -510,6 +647,7 @@ int ath10k_ce_send(struct ath10k_ce_pipe *ce_state,
 
 	return ret;
 }
+EXPORT_SYMBOL(ath10k_ce_send);
 
 int ath10k_ce_num_free_src_entries(struct ath10k_ce_pipe *pipe)
 {
@@ -525,6 +663,7 @@ int ath10k_ce_num_free_src_entries(struct ath10k_ce_pipe *pipe)
 
 	return delta;
 }
+EXPORT_SYMBOL(ath10k_ce_num_free_src_entries);
 
 int __ath10k_ce_rx_num_free_bufs(struct ath10k_ce_pipe *pipe)
 {
@@ -539,6 +678,7 @@ int __ath10k_ce_rx_num_free_bufs(struct ath10k_ce_pipe *pipe)
 
 	return CE_RING_DELTA(nentries_mask, write_index, sw_index - 1);
 }
+EXPORT_SYMBOL(__ath10k_ce_rx_num_free_bufs);
 
 static int __ath10k_ce_rx_post_buf(struct ath10k_ce_pipe *pipe, void *ctx,
 				   dma_addr_t paddr)
@@ -615,13 +755,14 @@ void ath10k_ce_rx_update_write_idx(struct ath10k_ce_pipe *pipe, u32 nentries)
 	/* Prevent CE ring stuck issue that will occur when ring is full.
 	 * Make sure that write index is 1 less than read index.
 	 */
-	if ((cur_write_idx + nentries)  == dest_ring->sw_index)
+	if (((cur_write_idx + nentries) & nentries_mask) == dest_ring->sw_index)
 		nentries -= 1;
 
 	write_index = CE_RING_IDX_ADD(nentries_mask, write_index, nentries);
 	ath10k_ce_dest_ring_write_index_set(ar, ctrl_addr, write_index);
 	dest_ring->write_index = write_index;
 }
+EXPORT_SYMBOL(ath10k_ce_rx_update_write_idx);
 
 int ath10k_ce_rx_post_buf(struct ath10k_ce_pipe *pipe, void *ctx,
 			  dma_addr_t paddr)
@@ -636,6 +777,7 @@ int ath10k_ce_rx_post_buf(struct ath10k_ce_pipe *pipe, void *ctx,
 
 	return ret;
 }
+EXPORT_SYMBOL(ath10k_ce_rx_post_buf);
 
 /*
  * Guts of ath10k_ce_completed_recv_next.
@@ -748,6 +890,7 @@ int ath10k_ce_completed_recv_next_nolock(struct ath10k_ce_pipe *ce_state,
 							    per_transfer_ctx,
 							    nbytesp);
 }
+EXPORT_SYMBOL(ath10k_ce_completed_recv_next_nolock);
 
 int ath10k_ce_completed_recv_next(struct ath10k_ce_pipe *ce_state,
 				  void **per_transfer_contextp,
@@ -766,6 +909,7 @@ int ath10k_ce_completed_recv_next(struct ath10k_ce_pipe *ce_state,
 
 	return ret;
 }
+EXPORT_SYMBOL(ath10k_ce_completed_recv_next);
 
 static int _ath10k_ce_revoke_recv_next(struct ath10k_ce_pipe *ce_state,
 				       void **per_transfer_contextp,
@@ -882,6 +1026,7 @@ int ath10k_ce_revoke_recv_next(struct ath10k_ce_pipe *ce_state,
 						  per_transfer_contextp,
 						  bufferp);
 }
+EXPORT_SYMBOL(ath10k_ce_revoke_recv_next);
 
 /*
  * Guts of ath10k_ce_completed_send_next.
@@ -915,7 +1060,10 @@ int ath10k_ce_completed_send_next_nolock(struct ath10k_ce_pipe *ce_state,
 		src_ring->hw_index = read_index;
 	}
 
-	read_index = src_ring->hw_index;
+	if (ar->hw_params.rri_on_ddr)
+		read_index = ath10k_ce_src_ring_read_index_get(ar, ctrl_addr);
+	else
+		read_index = src_ring->hw_index;
 
 	if (read_index == sw_index)
 		return -EIO;
@@ -936,6 +1084,7 @@ int ath10k_ce_completed_send_next_nolock(struct ath10k_ce_pipe *ce_state,
 
 	return 0;
 }
+EXPORT_SYMBOL(ath10k_ce_completed_send_next_nolock);
 
 static void ath10k_ce_extract_desc_data(struct ath10k *ar,
 					struct ath10k_ce_ring *src_ring,
@@ -1025,6 +1174,7 @@ int ath10k_ce_cancel_send_next(struct ath10k_ce_pipe *ce_state,
 
 	return ret;
 }
+EXPORT_SYMBOL(ath10k_ce_cancel_send_next);
 
 int ath10k_ce_completed_send_next(struct ath10k_ce_pipe *ce_state,
 				  void **per_transfer_contextp)
@@ -1040,6 +1190,7 @@ int ath10k_ce_completed_send_next(struct ath10k_ce_pipe *ce_state,
 
 	return ret;
 }
+EXPORT_SYMBOL(ath10k_ce_completed_send_next);
 
 /*
  * Guts of interrupt handler for per-engine interrupts on a particular CE.
@@ -1078,6 +1229,7 @@ void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id)
 
 	spin_unlock_bh(&ce->ce_lock);
 }
+EXPORT_SYMBOL(ath10k_ce_per_engine_service);
 
 /*
  * Handler for per-engine interrupts on ALL active CEs.
@@ -1102,6 +1254,7 @@ void ath10k_ce_per_engine_service_any(struct ath10k *ar)
 		ath10k_ce_per_engine_service(ar, ce_id);
 	}
 }
+EXPORT_SYMBOL(ath10k_ce_per_engine_service_any);
 
 /*
  * Adjust interrupts for the copy complete handler.
@@ -1139,6 +1292,7 @@ int ath10k_ce_disable_interrupts(struct ath10k *ar)
 
 	return 0;
 }
+EXPORT_SYMBOL(ath10k_ce_disable_interrupts);
 
 void ath10k_ce_enable_interrupts(struct ath10k *ar)
 {
@@ -1154,6 +1308,7 @@ void ath10k_ce_enable_interrupts(struct ath10k *ar)
 		ath10k_ce_per_engine_handler_adjust(ce_state);
 	}
 }
+EXPORT_SYMBOL(ath10k_ce_enable_interrupts);
 
 static int ath10k_ce_init_src_ring(struct ath10k *ar,
 				   unsigned int ce_id,
@@ -1234,6 +1389,22 @@ static int ath10k_ce_init_dest_ring(struct ath10k *ar,
 	return 0;
 }
 
+static int ath10k_ce_alloc_shadow_base(struct ath10k *ar,
+				       struct ath10k_ce_ring *src_ring,
+				       u32 nentries)
+{
+	src_ring->shadow_base_unaligned = kcalloc(nentries,
+						  sizeof(struct ce_desc),
+						  GFP_KERNEL);
+	if (!src_ring->shadow_base_unaligned)
+		return -ENOMEM;
+
+	src_ring->shadow_base = (struct ce_desc *)
+			PTR_ALIGN(src_ring->shadow_base_unaligned,
+				  CE_DESC_RING_ALIGN);
+	return 0;
+}
+
 static struct ath10k_ce_ring *
 ath10k_ce_alloc_src_ring(struct ath10k *ar, unsigned int ce_id,
 			 const struct ce_attr *attr)
@@ -1241,6 +1412,7 @@ ath10k_ce_alloc_src_ring(struct ath10k *ar, unsigned int ce_id,
 	struct ath10k_ce_ring *src_ring;
 	u32 nentries = attr->src_nentries;
 	dma_addr_t base_addr;
+	int ret;
 
 	nentries = roundup_pow_of_two(nentries);
 
@@ -1277,6 +1449,19 @@ ath10k_ce_alloc_src_ring(struct ath10k *ar, unsigned int ce_id,
 			ALIGN(src_ring->base_addr_ce_space_unaligned,
 			      CE_DESC_RING_ALIGN);
 
+	if (ar->hw_params.shadow_reg_support) {
+		ret = ath10k_ce_alloc_shadow_base(ar, src_ring, nentries);
+		if (ret) {
+			dma_free_coherent(ar->dev,
+					  (nentries * sizeof(struct ce_desc) +
+					   CE_DESC_RING_ALIGN),
+					  src_ring->base_addr_owner_space_unaligned,
+					  base_addr);
+			kfree(src_ring);
+			return ERR_PTR(ret);
+		}
+	}
+
 	return src_ring;
 }
 
@@ -1287,6 +1472,7 @@ ath10k_ce_alloc_src_ring_64(struct ath10k *ar, unsigned int ce_id,
 	struct ath10k_ce_ring *src_ring;
 	u32 nentries = attr->src_nentries;
 	dma_addr_t base_addr;
+	int ret;
 
 	nentries = roundup_pow_of_two(nentries);
 
@@ -1322,6 +1508,19 @@ ath10k_ce_alloc_src_ring_64(struct ath10k *ar, unsigned int ce_id,
 			ALIGN(src_ring->base_addr_ce_space_unaligned,
 			      CE_DESC_RING_ALIGN);
 
+	if (ar->hw_params.shadow_reg_support) {
+		ret = ath10k_ce_alloc_shadow_base(ar, src_ring, nentries);
+		if (ret) {
+			dma_free_coherent(ar->dev,
+					  (nentries * sizeof(struct ce_desc) +
+					   CE_DESC_RING_ALIGN),
+					  src_ring->base_addr_owner_space_unaligned,
+					  base_addr);
+			kfree(src_ring);
+			return ERR_PTR(ret);
+		}
+	}
+
 	return src_ring;
 }
 
@@ -1454,6 +1653,7 @@ int ath10k_ce_init_pipe(struct ath10k *ar, unsigned int ce_id,
 
 	return 0;
 }
+EXPORT_SYMBOL(ath10k_ce_init_pipe);
 
 static void ath10k_ce_deinit_src_ring(struct ath10k *ar, unsigned int ce_id)
 {
@@ -1479,6 +1679,7 @@ void ath10k_ce_deinit_pipe(struct ath10k *ar, unsigned int ce_id)
 	ath10k_ce_deinit_src_ring(ar, ce_id);
 	ath10k_ce_deinit_dest_ring(ar, ce_id);
 }
+EXPORT_SYMBOL(ath10k_ce_deinit_pipe);
 
 static void _ath10k_ce_free_pipe(struct ath10k *ar, int ce_id)
 {
@@ -1486,6 +1687,8 @@ static void _ath10k_ce_free_pipe(struct ath10k *ar, int ce_id)
 	struct ath10k_ce_pipe *ce_state = &ce->ce_states[ce_id];
 
 	if (ce_state->src_ring) {
+		if (ar->hw_params.shadow_reg_support)
+			kfree(ce_state->src_ring->shadow_base_unaligned);
 		dma_free_coherent(ar->dev,
 				  (ce_state->src_ring->nentries *
 				   sizeof(struct ce_desc) +
@@ -1515,6 +1718,8 @@ static void _ath10k_ce_free_pipe_64(struct ath10k *ar, int ce_id)
 	struct ath10k_ce_pipe *ce_state = &ce->ce_states[ce_id];
 
 	if (ce_state->src_ring) {
+		if (ar->hw_params.shadow_reg_support)
+			kfree(ce_state->src_ring->shadow_base_unaligned);
 		dma_free_coherent(ar->dev,
 				  (ce_state->src_ring->nentries *
 				   sizeof(struct ce_desc_64) +
@@ -1545,6 +1750,7 @@ void ath10k_ce_free_pipe(struct ath10k *ar, int ce_id)
 
 	ce_state->ops->ce_free_pipe(ar, ce_id);
 }
+EXPORT_SYMBOL(ath10k_ce_free_pipe);
 
 void ath10k_ce_dump_registers(struct ath10k *ar,
 			      struct ath10k_fw_crash_data *crash_data)
@@ -1584,6 +1790,7 @@ void ath10k_ce_dump_registers(struct ath10k *ar,
 
 	spin_unlock_bh(&ce->ce_lock);
 }
+EXPORT_SYMBOL(ath10k_ce_dump_registers);
 
 static const struct ath10k_ce_ops ce_ops = {
 	.ce_alloc_src_ring = ath10k_ce_alloc_src_ring,
@@ -1680,3 +1887,47 @@ int ath10k_ce_alloc_pipe(struct ath10k *ar, int ce_id,
 
 	return 0;
 }
+EXPORT_SYMBOL(ath10k_ce_alloc_pipe);
+
+void ath10k_ce_alloc_rri(struct ath10k *ar)
+{
+	int i;
+	u32 value;
+	u32 ctrl1_regs;
+	u32 ce_base_addr;
+	struct ath10k_ce *ce = ath10k_ce_priv(ar);
+
+	ce->vaddr_rri = dma_alloc_coherent(ar->dev,
+					   (CE_COUNT * sizeof(u32)),
+					   &ce->paddr_rri, GFP_KERNEL);
+
+	if (!ce->vaddr_rri)
+		return;
+
+	ath10k_ce_write32(ar, ar->hw_ce_regs->ce_rri_low,
+			  lower_32_bits(ce->paddr_rri));
+	ath10k_ce_write32(ar, ar->hw_ce_regs->ce_rri_high,
+			  (upper_32_bits(ce->paddr_rri) &
+			  CE_DESC_FLAGS_GET_MASK));
+
+	for (i = 0; i < CE_COUNT; i++) {
+		ctrl1_regs = ar->hw_ce_regs->ctrl1_regs->addr;
+		ce_base_addr = ath10k_ce_base_address(ar, i);
+		value = ath10k_ce_read32(ar, ce_base_addr + ctrl1_regs);
+		value |= ar->hw_ce_regs->upd->mask;
+		ath10k_ce_write32(ar, ce_base_addr + ctrl1_regs, value);
+	}
+
+	memset(ce->vaddr_rri, 0, CE_COUNT * sizeof(u32));
+}
+EXPORT_SYMBOL(ath10k_ce_alloc_rri);
+
+void ath10k_ce_free_rri(struct ath10k *ar)
+{
+	struct ath10k_ce *ce = ath10k_ce_priv(ar);
+
+	dma_free_coherent(ar->dev, (CE_COUNT * sizeof(u32)),
+			  ce->vaddr_rri,
+			  ce->paddr_rri);
+}
+EXPORT_SYMBOL(ath10k_ce_free_rri);