Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 410 insertions, 0 deletions

diff --git a/drivers/crypto/qat/qat_common/qat_bl.c b/drivers/crypto/qat/qat_common/qat_bl.c
new file mode 100644
index 000000000..76baed0a7
--- /dev/null
+++ b/drivers/crypto/qat/qat_common/qat_bl.c
@@ -0,0 +1,410 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* Copyright(c) 2014 - 2022 Intel Corporation */
+#include <linux/device.h>
+#include <linux/dma-mapping.h>
+#include <linux/pci.h>
+#include <linux/scatterlist.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+#include "adf_accel_devices.h"
+#include "qat_bl.h"
+#include "qat_crypto.h"
+
+void qat_bl_free_bufl(struct adf_accel_dev *accel_dev,
+		      struct qat_request_buffs *buf)
+{
+	struct device *dev = &GET_DEV(accel_dev);
+	struct qat_alg_buf_list *bl = buf->bl;
+	struct qat_alg_buf_list *blout = buf->blout;
+	dma_addr_t blp = buf->blp;
+	dma_addr_t blpout = buf->bloutp;
+	size_t sz = buf->sz;
+	size_t sz_out = buf->sz_out;
+	int bl_dma_dir;
+	int i;
+
+	bl_dma_dir = blp != blpout ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL;
+
+	for (i = 0; i < bl->num_bufs; i++)
+		dma_unmap_single(dev, bl->buffers[i].addr,
+				 bl->buffers[i].len, bl_dma_dir);
+
+	dma_unmap_single(dev, blp, sz, DMA_TO_DEVICE);
+
+	if (!buf->sgl_src_valid)
+		kfree(bl);
+
+	if (blp != blpout) {
+		for (i = 0; i < blout->num_mapped_bufs; i++) {
+			dma_unmap_single(dev, blout->buffers[i].addr,
+					 blout->buffers[i].len,
+					 DMA_FROM_DEVICE);
+		}
+		dma_unmap_single(dev, blpout, sz_out, DMA_TO_DEVICE);
+
+		if (!buf->sgl_dst_valid)
+			kfree(blout);
+	}
+}
+
+static int __qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev,
+				struct scatterlist *sgl,
+				struct scatterlist *sglout,
+				struct qat_request_buffs *buf,
+				dma_addr_t extra_dst_buff,
+				size_t sz_extra_dst_buff,
+				unsigned int sskip,
+				unsigned int dskip,
+				gfp_t flags)
+{
+	struct device *dev = &GET_DEV(accel_dev);
+	int i, sg_nctr = 0;
+	int n = sg_nents(sgl);
+	struct qat_alg_buf_list *bufl;
+	struct qat_alg_buf_list *buflout = NULL;
+	dma_addr_t blp = DMA_MAPPING_ERROR;
+	dma_addr_t bloutp = DMA_MAPPING_ERROR;
+	struct scatterlist *sg;
+	size_t sz_out, sz = struct_size(bufl, buffers, n);
+	int node = dev_to_node(&GET_DEV(accel_dev));
+	unsigned int left;
+	int bufl_dma_dir;
+
+	if (unlikely(!n))
+		return -EINVAL;
+
+	buf->sgl_src_valid = false;
+	buf->sgl_dst_valid = false;
+
+	if (n > QAT_MAX_BUFF_DESC) {
+		bufl = kzalloc_node(sz, flags, node);
+		if (unlikely(!bufl))
+			return -ENOMEM;
+	} else {
+		bufl = &buf->sgl_src.sgl_hdr;
+		memset(bufl, 0, sizeof(struct qat_alg_buf_list));
+		buf->sgl_src_valid = true;
+	}
+
+	bufl_dma_dir = sgl != sglout ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL;
+
+	for (i = 0; i < n; i++)
+		bufl->buffers[i].addr = DMA_MAPPING_ERROR;
+
+	left = sskip;
+
+	for_each_sg(sgl, sg, n, i) {
+		int y = sg_nctr;
+
+		if (!sg->length)
+			continue;
+
+		if (left >= sg->length) {
+			left -= sg->length;
+			continue;
+		}
+		bufl->buffers[y].addr = dma_map_single(dev, sg_virt(sg) + left,
+						       sg->length - left,
+						       bufl_dma_dir);
+		bufl->buffers[y].len = sg->length;
+		if (unlikely(dma_mapping_error(dev, bufl->buffers[y].addr)))
+			goto err_in;
+		sg_nctr++;
+		if (left) {
+			bufl->buffers[y].len -= left;
+			left = 0;
+		}
+	}
+	bufl->num_bufs = sg_nctr;
+	blp = dma_map_single(dev, bufl, sz, DMA_TO_DEVICE);
+	if (unlikely(dma_mapping_error(dev, blp)))
+		goto err_in;
+	buf->bl = bufl;
+	buf->blp = blp;
+	buf->sz = sz;
+	/* Handle out of place operation */
+	if (sgl != sglout) {
+		struct qat_alg_buf *buffers;
+		int extra_buff = extra_dst_buff ? 1 : 0;
+		int n_sglout = sg_nents(sglout);
+
+		n = n_sglout + extra_buff;
+		sz_out = struct_size(buflout, buffers, n);
+		left = dskip;
+
+		sg_nctr = 0;
+
+		if (n > QAT_MAX_BUFF_DESC) {
+			buflout = kzalloc_node(sz_out, flags, node);
+			if (unlikely(!buflout))
+				goto err_in;
+		} else {
+			buflout = &buf->sgl_dst.sgl_hdr;
+			memset(buflout, 0, sizeof(struct qat_alg_buf_list));
+			buf->sgl_dst_valid = true;
+		}
+
+		buffers = buflout->buffers;
+		for (i = 0; i < n; i++)
+			buffers[i].addr = DMA_MAPPING_ERROR;
+
+		for_each_sg(sglout, sg, n_sglout, i) {
+			int y = sg_nctr;
+
+			if (!sg->length)
+				continue;
+
+			if (left >= sg->length) {
+				left -= sg->length;
+				continue;
+			}
+			buffers[y].addr = dma_map_single(dev, sg_virt(sg) + left,
+							 sg->length - left,
+							 DMA_FROM_DEVICE);
+			if (unlikely(dma_mapping_error(dev, buffers[y].addr)))
+				goto err_out;
+			buffers[y].len = sg->length;
+			sg_nctr++;
+			if (left) {
+				buffers[y].len -= left;
+				left = 0;
+			}
+		}
+		if (extra_buff) {
+			buffers[sg_nctr].addr = extra_dst_buff;
+			buffers[sg_nctr].len = sz_extra_dst_buff;
+		}
+
+		buflout->num_bufs = sg_nctr;
+		buflout->num_bufs += extra_buff;
+		buflout->num_mapped_bufs = sg_nctr;
+		bloutp = dma_map_single(dev, buflout, sz_out, DMA_TO_DEVICE);
+		if (unlikely(dma_mapping_error(dev, bloutp)))
+			goto err_out;
+		buf->blout = buflout;
+		buf->bloutp = bloutp;
+		buf->sz_out = sz_out;
+	} else {
+		/* Otherwise set the src and dst to the same address */
+		buf->bloutp = buf->blp;
+		buf->sz_out = 0;
+	}
+	return 0;
+
+err_out:
+	if (!dma_mapping_error(dev, bloutp))
+		dma_unmap_single(dev, bloutp, sz_out, DMA_TO_DEVICE);
+
+	n = sg_nents(sglout);
+	for (i = 0; i < n; i++) {
+		if (buflout->buffers[i].addr == extra_dst_buff)
+			break;
+		if (!dma_mapping_error(dev, buflout->buffers[i].addr))
+			dma_unmap_single(dev, buflout->buffers[i].addr,
+					 buflout->buffers[i].len,
+					 DMA_FROM_DEVICE);
+	}
+
+	if (!buf->sgl_dst_valid)
+		kfree(buflout);
+
+err_in:
+	if (!dma_mapping_error(dev, blp))
+		dma_unmap_single(dev, blp, sz, DMA_TO_DEVICE);
+
+	n = sg_nents(sgl);
+	for (i = 0; i < n; i++)
+		if (!dma_mapping_error(dev, bufl->buffers[i].addr))
+			dma_unmap_single(dev, bufl->buffers[i].addr,
+					 bufl->buffers[i].len,
+					 bufl_dma_dir);
+
+	if (!buf->sgl_src_valid)
+		kfree(bufl);
+
+	dev_err(dev, "Failed to map buf for dma\n");
+	return -ENOMEM;
+}
+
+int qat_bl_sgl_to_bufl(struct adf_accel_dev *accel_dev,
+		       struct scatterlist *sgl,
+		       struct scatterlist *sglout,
+		       struct qat_request_buffs *buf,
+		       struct qat_sgl_to_bufl_params *params,
+		       gfp_t flags)
+{
+	dma_addr_t extra_dst_buff = 0;
+	size_t sz_extra_dst_buff = 0;
+	unsigned int sskip = 0;
+	unsigned int dskip = 0;
+
+	if (params) {
+		extra_dst_buff = params->extra_dst_buff;
+		sz_extra_dst_buff = params->sz_extra_dst_buff;
+		sskip = params->sskip;
+		dskip = params->dskip;
+	}
+
+	return __qat_bl_sgl_to_bufl(accel_dev, sgl, sglout, buf,
+				    extra_dst_buff, sz_extra_dst_buff,
+				    sskip, dskip, flags);
+}
+
+static void qat_bl_sgl_unmap(struct adf_accel_dev *accel_dev,
+			     struct qat_alg_buf_list *bl)
+{
+	struct device *dev = &GET_DEV(accel_dev);
+	int n = bl->num_bufs;
+	int i;
+
+	for (i = 0; i < n; i++)
+		if (!dma_mapping_error(dev, bl->buffers[i].addr))
+			dma_unmap_single(dev, bl->buffers[i].addr,
+					 bl->buffers[i].len, DMA_FROM_DEVICE);
+}
+
+static int qat_bl_sgl_map(struct adf_accel_dev *accel_dev,
+			  struct scatterlist *sgl,
+			  struct qat_alg_buf_list **bl)
+{
+	struct device *dev = &GET_DEV(accel_dev);
+	struct qat_alg_buf_list *bufl;
+	int node = dev_to_node(dev);
+	struct scatterlist *sg;
+	int n, i, sg_nctr;
+	size_t sz;
+
+	n = sg_nents(sgl);
+	sz = struct_size(bufl, buffers, n);
+	bufl = kzalloc_node(sz, GFP_KERNEL, node);
+	if (unlikely(!bufl))
+		return -ENOMEM;
+
+	for (i = 0; i < n; i++)
+		bufl->buffers[i].addr = DMA_MAPPING_ERROR;
+
+	sg_nctr = 0;
+	for_each_sg(sgl, sg, n, i) {
+		int y = sg_nctr;
+
+		if (!sg->length)
+			continue;
+
+		bufl->buffers[y].addr = dma_map_single(dev, sg_virt(sg),
+						       sg->length,
+						       DMA_FROM_DEVICE);
+		bufl->buffers[y].len = sg->length;
+		if (unlikely(dma_mapping_error(dev, bufl->buffers[y].addr)))
+			goto err_map;
+		sg_nctr++;
+	}
+	bufl->num_bufs = sg_nctr;
+	bufl->num_mapped_bufs = sg_nctr;
+
+	*bl = bufl;
+
+	return 0;
+
+err_map:
+	for (i = 0; i < n; i++)
+		if (!dma_mapping_error(dev, bufl->buffers[i].addr))
+			dma_unmap_single(dev, bufl->buffers[i].addr,
+					 bufl->buffers[i].len,
+					 DMA_FROM_DEVICE);
+	kfree(bufl);
+	*bl = NULL;
+
+	return -ENOMEM;
+}
+
+static void qat_bl_sgl_free_unmap(struct adf_accel_dev *accel_dev,
+				  struct scatterlist *sgl,
+				  struct qat_alg_buf_list *bl,
+				  bool free_bl)
+{
+	if (bl) {
+		qat_bl_sgl_unmap(accel_dev, bl);
+
+		if (free_bl)
+			kfree(bl);
+	}
+	if (sgl)
+		sgl_free(sgl);
+}
+
+static int qat_bl_sgl_alloc_map(struct adf_accel_dev *accel_dev,
+				struct scatterlist **sgl,
+				struct qat_alg_buf_list **bl,
+				unsigned int dlen,
+				gfp_t gfp)
+{
+	struct scatterlist *dst;
+	int ret;
+
+	dst = sgl_alloc(dlen, gfp, NULL);
+	if (!dst) {
+		dev_err(&GET_DEV(accel_dev), "sg_alloc failed\n");
+		return -ENOMEM;
+	}
+
+	ret = qat_bl_sgl_map(accel_dev, dst, bl);
+	if (ret)
+		goto err;
+
+	*sgl = dst;
+
+	return 0;
+
+err:
+	sgl_free(dst);
+	*sgl = NULL;
+	return ret;
+}
+
+int qat_bl_realloc_map_new_dst(struct adf_accel_dev *accel_dev,
+			       struct scatterlist **sg,
+			       unsigned int dlen,
+			       struct qat_request_buffs *qat_bufs,
+			       gfp_t gfp)
+{
+	struct device *dev = &GET_DEV(accel_dev);
+	dma_addr_t new_blp = DMA_MAPPING_ERROR;
+	struct qat_alg_buf_list *new_bl;
+	struct scatterlist *new_sg;
+	size_t new_bl_size;
+	int ret;
+
+	ret = qat_bl_sgl_alloc_map(accel_dev, &new_sg, &new_bl, dlen, gfp);
+	if (ret)
+		return ret;
+
+	new_bl_size = struct_size(new_bl, buffers, new_bl->num_bufs);
+
+	/* Map new firmware SGL descriptor */
+	new_blp = dma_map_single(dev, new_bl, new_bl_size, DMA_TO_DEVICE);
+	if (unlikely(dma_mapping_error(dev, new_blp)))
+		goto err;
+
+	/* Unmap old firmware SGL descriptor */
+	dma_unmap_single(dev, qat_bufs->bloutp, qat_bufs->sz_out, DMA_TO_DEVICE);
+
+	/* Free and unmap old scatterlist */
+	qat_bl_sgl_free_unmap(accel_dev, *sg, qat_bufs->blout,
+			      !qat_bufs->sgl_dst_valid);
+
+	qat_bufs->sgl_dst_valid = false;
+	qat_bufs->blout = new_bl;
+	qat_bufs->bloutp = new_blp;
+	qat_bufs->sz_out = new_bl_size;
+
+	*sg = new_sg;
+
+	return 0;
+err:
+	qat_bl_sgl_free_unmap(accel_dev, new_sg, new_bl, true);
+
+	if (!dma_mapping_error(dev, new_blp))
+		dma_unmap_single(dev, new_blp, new_bl_size, DMA_TO_DEVICE);
+
+	return -ENOMEM;
+}