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, 918 insertions, 0 deletions

diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_ctx.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_ctx.c
new file mode 100644
index 000000000..2fcbcecb4
--- /dev/null
+++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_ctx.c
@@ -0,0 +1,918 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2003 - 2009 NetXen, Inc.
+ * Copyright (C) 2009 - QLogic Corporation.
+ * All rights reserved.
+ */
+
+#include "netxen_nic_hw.h"
+#include "netxen_nic.h"
+
+#define NXHAL_VERSION	1
+
+static u32
+netxen_poll_rsp(struct netxen_adapter *adapter)
+{
+	u32 rsp = NX_CDRP_RSP_OK;
+	int	timeout = 0;
+
+	do {
+		/* give atleast 1ms for firmware to respond */
+		msleep(1);
+
+		if (++timeout > NX_OS_CRB_RETRY_COUNT)
+			return NX_CDRP_RSP_TIMEOUT;
+
+		rsp = NXRD32(adapter, NX_CDRP_CRB_OFFSET);
+	} while (!NX_CDRP_IS_RSP(rsp));
+
+	return rsp;
+}
+
+static u32
+netxen_issue_cmd(struct netxen_adapter *adapter, struct netxen_cmd_args *cmd)
+{
+	u32 rsp;
+	u32 signature = 0;
+	u32 rcode = NX_RCODE_SUCCESS;
+
+	signature = NX_CDRP_SIGNATURE_MAKE(adapter->ahw.pci_func,
+						NXHAL_VERSION);
+	/* Acquire semaphore before accessing CRB */
+	if (netxen_api_lock(adapter))
+		return NX_RCODE_TIMEOUT;
+
+	NXWR32(adapter, NX_SIGN_CRB_OFFSET, signature);
+
+	NXWR32(adapter, NX_ARG1_CRB_OFFSET, cmd->req.arg1);
+
+	NXWR32(adapter, NX_ARG2_CRB_OFFSET, cmd->req.arg2);
+
+	NXWR32(adapter, NX_ARG3_CRB_OFFSET, cmd->req.arg3);
+
+	NXWR32(adapter, NX_CDRP_CRB_OFFSET, NX_CDRP_FORM_CMD(cmd->req.cmd));
+
+	rsp = netxen_poll_rsp(adapter);
+
+	if (rsp == NX_CDRP_RSP_TIMEOUT) {
+		printk(KERN_ERR "%s: card response timeout.\n",
+				netxen_nic_driver_name);
+
+		rcode = NX_RCODE_TIMEOUT;
+	} else if (rsp == NX_CDRP_RSP_FAIL) {
+		rcode = NXRD32(adapter, NX_ARG1_CRB_OFFSET);
+
+		printk(KERN_ERR "%s: failed card response code:0x%x\n",
+				netxen_nic_driver_name, rcode);
+	} else if (rsp == NX_CDRP_RSP_OK) {
+		cmd->rsp.cmd = NX_RCODE_SUCCESS;
+		if (cmd->rsp.arg2)
+			cmd->rsp.arg2 = NXRD32(adapter, NX_ARG2_CRB_OFFSET);
+		if (cmd->rsp.arg3)
+			cmd->rsp.arg3 = NXRD32(adapter, NX_ARG3_CRB_OFFSET);
+	}
+
+	if (cmd->rsp.arg1)
+		cmd->rsp.arg1 = NXRD32(adapter, NX_ARG1_CRB_OFFSET);
+	/* Release semaphore */
+	netxen_api_unlock(adapter);
+
+	return rcode;
+}
+
+static int
+netxen_get_minidump_template_size(struct netxen_adapter *adapter)
+{
+	struct netxen_cmd_args cmd;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.cmd = NX_CDRP_CMD_TEMP_SIZE;
+	memset(&cmd.rsp, 1, sizeof(struct _cdrp_cmd));
+	netxen_issue_cmd(adapter, &cmd);
+	if (cmd.rsp.cmd != NX_RCODE_SUCCESS) {
+		dev_info(&adapter->pdev->dev,
+			"Can't get template size %d\n", cmd.rsp.cmd);
+		return -EIO;
+	}
+	adapter->mdump.md_template_size = cmd.rsp.arg2;
+	adapter->mdump.md_template_ver = cmd.rsp.arg3;
+	return 0;
+}
+
+static int
+netxen_get_minidump_template(struct netxen_adapter *adapter)
+{
+	dma_addr_t md_template_addr;
+	void *addr;
+	u32 size;
+	struct netxen_cmd_args cmd;
+	size = adapter->mdump.md_template_size;
+
+	if (size == 0) {
+		dev_err(&adapter->pdev->dev, "Can not capture Minidump "
+			"template. Invalid template size.\n");
+		return NX_RCODE_INVALID_ARGS;
+	}
+
+	addr = dma_alloc_coherent(&adapter->pdev->dev, size,
+				  &md_template_addr, GFP_KERNEL);
+	if (!addr) {
+		dev_err(&adapter->pdev->dev, "Unable to allocate dmable memory for template.\n");
+		return -ENOMEM;
+	}
+
+	memset(&cmd, 0, sizeof(cmd));
+	memset(&cmd.rsp, 1, sizeof(struct _cdrp_cmd));
+	cmd.req.cmd = NX_CDRP_CMD_GET_TEMP_HDR;
+	cmd.req.arg1 = LSD(md_template_addr);
+	cmd.req.arg2 = MSD(md_template_addr);
+	cmd.req.arg3 |= size;
+	netxen_issue_cmd(adapter, &cmd);
+
+	if ((cmd.rsp.cmd == NX_RCODE_SUCCESS) && (size == cmd.rsp.arg2)) {
+		memcpy(adapter->mdump.md_template, addr, size);
+	} else {
+		dev_err(&adapter->pdev->dev, "Failed to get minidump template, err_code : %d, requested_size : %d, actual_size : %d\n",
+			cmd.rsp.cmd, size, cmd.rsp.arg2);
+	}
+	dma_free_coherent(&adapter->pdev->dev, size, addr, md_template_addr);
+	return 0;
+}
+
+static u32
+netxen_check_template_checksum(struct netxen_adapter *adapter)
+{
+	u64 sum =  0 ;
+	u32 *buff = adapter->mdump.md_template;
+	int count =  adapter->mdump.md_template_size/sizeof(uint32_t) ;
+
+	while (count-- > 0)
+		sum += *buff++ ;
+	while (sum >> 32)
+		sum = (sum & 0xFFFFFFFF) +  (sum >> 32) ;
+
+	return ~sum;
+}
+
+int
+netxen_setup_minidump(struct netxen_adapter *adapter)
+{
+	int err = 0, i;
+	u32 *template, *tmp_buf;
+	err = netxen_get_minidump_template_size(adapter);
+	if (err) {
+		adapter->mdump.fw_supports_md = 0;
+		if ((err == NX_RCODE_CMD_INVALID) ||
+			(err == NX_RCODE_CMD_NOT_IMPL)) {
+			dev_info(&adapter->pdev->dev,
+				"Flashed firmware version does not support minidump, minimum version required is [ %u.%u.%u ]\n",
+				NX_MD_SUPPORT_MAJOR, NX_MD_SUPPORT_MINOR,
+				NX_MD_SUPPORT_SUBVERSION);
+		}
+		return err;
+	}
+
+	if (!adapter->mdump.md_template_size) {
+		dev_err(&adapter->pdev->dev, "Error : Invalid template size "
+		",should be non-zero.\n");
+		return -EIO;
+	}
+	adapter->mdump.md_template =
+		kmalloc(adapter->mdump.md_template_size, GFP_KERNEL);
+
+	if (!adapter->mdump.md_template)
+		return -ENOMEM;
+
+	err = netxen_get_minidump_template(adapter);
+	if (err) {
+		if (err == NX_RCODE_CMD_NOT_IMPL)
+			adapter->mdump.fw_supports_md = 0;
+		goto free_template;
+	}
+
+	if (netxen_check_template_checksum(adapter)) {
+		dev_err(&adapter->pdev->dev, "Minidump template checksum Error\n");
+		err = -EIO;
+		goto free_template;
+	}
+
+	adapter->mdump.md_capture_mask = NX_DUMP_MASK_DEF;
+	tmp_buf = (u32 *) adapter->mdump.md_template;
+	template = (u32 *) adapter->mdump.md_template;
+	for (i = 0; i < adapter->mdump.md_template_size/sizeof(u32); i++)
+		*template++ = __le32_to_cpu(*tmp_buf++);
+	adapter->mdump.md_capture_buff = NULL;
+	adapter->mdump.fw_supports_md = 1;
+	adapter->mdump.md_enabled = 0;
+
+	return err;
+
+free_template:
+	kfree(adapter->mdump.md_template);
+	adapter->mdump.md_template = NULL;
+	return err;
+}
+
+
+int
+nx_fw_cmd_set_mtu(struct netxen_adapter *adapter, int mtu)
+{
+	u32 rcode = NX_RCODE_SUCCESS;
+	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
+	struct netxen_cmd_args cmd;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.cmd = NX_CDRP_CMD_SET_MTU;
+	cmd.req.arg1 = recv_ctx->context_id;
+	cmd.req.arg2 = mtu;
+	cmd.req.arg3 = 0;
+
+	if (recv_ctx->state == NX_HOST_CTX_STATE_ACTIVE)
+		rcode = netxen_issue_cmd(adapter, &cmd);
+
+	if (rcode != NX_RCODE_SUCCESS)
+		return -EIO;
+
+	return 0;
+}
+
+int
+nx_fw_cmd_set_gbe_port(struct netxen_adapter *adapter,
+			u32 speed, u32 duplex, u32 autoneg)
+{
+	struct netxen_cmd_args cmd;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.cmd = NX_CDRP_CMD_CONFIG_GBE_PORT;
+	cmd.req.arg1 = speed;
+	cmd.req.arg2 = duplex;
+	cmd.req.arg3 = autoneg;
+	return netxen_issue_cmd(adapter, &cmd);
+}
+
+static int
+nx_fw_cmd_create_rx_ctx(struct netxen_adapter *adapter)
+{
+	void *addr;
+	nx_hostrq_rx_ctx_t *prq;
+	nx_cardrsp_rx_ctx_t *prsp;
+	nx_hostrq_rds_ring_t *prq_rds;
+	nx_hostrq_sds_ring_t *prq_sds;
+	nx_cardrsp_rds_ring_t *prsp_rds;
+	nx_cardrsp_sds_ring_t *prsp_sds;
+	struct nx_host_rds_ring *rds_ring;
+	struct nx_host_sds_ring *sds_ring;
+	struct netxen_cmd_args cmd;
+
+	dma_addr_t hostrq_phys_addr, cardrsp_phys_addr;
+	u64 phys_addr;
+
+	int i, nrds_rings, nsds_rings;
+	size_t rq_size, rsp_size;
+	u32 cap, reg, val;
+
+	int err;
+
+	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
+
+	nrds_rings = adapter->max_rds_rings;
+	nsds_rings = adapter->max_sds_rings;
+
+	rq_size =
+		SIZEOF_HOSTRQ_RX(nx_hostrq_rx_ctx_t, nrds_rings, nsds_rings);
+	rsp_size =
+		SIZEOF_CARDRSP_RX(nx_cardrsp_rx_ctx_t, nrds_rings, nsds_rings);
+
+	addr = dma_alloc_coherent(&adapter->pdev->dev, rq_size,
+				  &hostrq_phys_addr, GFP_KERNEL);
+	if (addr == NULL)
+		return -ENOMEM;
+	prq = addr;
+
+	addr = dma_alloc_coherent(&adapter->pdev->dev, rsp_size,
+				  &cardrsp_phys_addr, GFP_KERNEL);
+	if (addr == NULL) {
+		err = -ENOMEM;
+		goto out_free_rq;
+	}
+	prsp = addr;
+
+	prq->host_rsp_dma_addr = cpu_to_le64(cardrsp_phys_addr);
+
+	cap = (NX_CAP0_LEGACY_CONTEXT | NX_CAP0_LEGACY_MN);
+	cap |= (NX_CAP0_JUMBO_CONTIGUOUS | NX_CAP0_LRO_CONTIGUOUS);
+
+	if (adapter->flags & NETXEN_FW_MSS_CAP)
+		cap |= NX_CAP0_HW_LRO_MSS;
+
+	prq->capabilities[0] = cpu_to_le32(cap);
+	prq->host_int_crb_mode =
+		cpu_to_le32(NX_HOST_INT_CRB_MODE_SHARED);
+	prq->host_rds_crb_mode =
+		cpu_to_le32(NX_HOST_RDS_CRB_MODE_UNIQUE);
+
+	prq->num_rds_rings = cpu_to_le16(nrds_rings);
+	prq->num_sds_rings = cpu_to_le16(nsds_rings);
+	prq->rds_ring_offset = cpu_to_le32(0);
+
+	val = le32_to_cpu(prq->rds_ring_offset) +
+		(sizeof(nx_hostrq_rds_ring_t) * nrds_rings);
+	prq->sds_ring_offset = cpu_to_le32(val);
+
+	prq_rds = (nx_hostrq_rds_ring_t *)(prq->data +
+			le32_to_cpu(prq->rds_ring_offset));
+
+	for (i = 0; i < nrds_rings; i++) {
+
+		rds_ring = &recv_ctx->rds_rings[i];
+
+		prq_rds[i].host_phys_addr = cpu_to_le64(rds_ring->phys_addr);
+		prq_rds[i].ring_size = cpu_to_le32(rds_ring->num_desc);
+		prq_rds[i].ring_kind = cpu_to_le32(i);
+		prq_rds[i].buff_size = cpu_to_le64(rds_ring->dma_size);
+	}
+
+	prq_sds = (nx_hostrq_sds_ring_t *)(prq->data +
+			le32_to_cpu(prq->sds_ring_offset));
+
+	for (i = 0; i < nsds_rings; i++) {
+
+		sds_ring = &recv_ctx->sds_rings[i];
+
+		prq_sds[i].host_phys_addr = cpu_to_le64(sds_ring->phys_addr);
+		prq_sds[i].ring_size = cpu_to_le32(sds_ring->num_desc);
+		prq_sds[i].msi_index = cpu_to_le16(i);
+	}
+
+	phys_addr = hostrq_phys_addr;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.arg1 = (u32)(phys_addr >> 32);
+	cmd.req.arg2 = (u32)(phys_addr & 0xffffffff);
+	cmd.req.arg3 = rq_size;
+	cmd.req.cmd = NX_CDRP_CMD_CREATE_RX_CTX;
+	err = netxen_issue_cmd(adapter, &cmd);
+	if (err) {
+		printk(KERN_WARNING
+			"Failed to create rx ctx in firmware%d\n", err);
+		goto out_free_rsp;
+	}
+
+
+	prsp_rds = ((nx_cardrsp_rds_ring_t *)
+			 &prsp->data[le32_to_cpu(prsp->rds_ring_offset)]);
+
+	for (i = 0; i < le16_to_cpu(prsp->num_rds_rings); i++) {
+		rds_ring = &recv_ctx->rds_rings[i];
+
+		reg = le32_to_cpu(prsp_rds[i].host_producer_crb);
+		rds_ring->crb_rcv_producer = netxen_get_ioaddr(adapter,
+				NETXEN_NIC_REG(reg - 0x200));
+	}
+
+	prsp_sds = ((nx_cardrsp_sds_ring_t *)
+			&prsp->data[le32_to_cpu(prsp->sds_ring_offset)]);
+
+	for (i = 0; i < le16_to_cpu(prsp->num_sds_rings); i++) {
+		sds_ring = &recv_ctx->sds_rings[i];
+
+		reg = le32_to_cpu(prsp_sds[i].host_consumer_crb);
+		sds_ring->crb_sts_consumer = netxen_get_ioaddr(adapter,
+				NETXEN_NIC_REG(reg - 0x200));
+
+		reg = le32_to_cpu(prsp_sds[i].interrupt_crb);
+		sds_ring->crb_intr_mask = netxen_get_ioaddr(adapter,
+				NETXEN_NIC_REG(reg - 0x200));
+	}
+
+	recv_ctx->state = le32_to_cpu(prsp->host_ctx_state);
+	recv_ctx->context_id = le16_to_cpu(prsp->context_id);
+	recv_ctx->virt_port = prsp->virt_port;
+
+out_free_rsp:
+	dma_free_coherent(&adapter->pdev->dev, rsp_size, prsp,
+			  cardrsp_phys_addr);
+out_free_rq:
+	dma_free_coherent(&adapter->pdev->dev, rq_size, prq, hostrq_phys_addr);
+	return err;
+}
+
+static void
+nx_fw_cmd_destroy_rx_ctx(struct netxen_adapter *adapter)
+{
+	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
+	struct netxen_cmd_args cmd;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.arg1 = recv_ctx->context_id;
+	cmd.req.arg2 = NX_DESTROY_CTX_RESET;
+	cmd.req.arg3 = 0;
+	cmd.req.cmd = NX_CDRP_CMD_DESTROY_RX_CTX;
+
+	if (netxen_issue_cmd(adapter, &cmd)) {
+		printk(KERN_WARNING
+			"%s: Failed to destroy rx ctx in firmware\n",
+			netxen_nic_driver_name);
+	}
+}
+
+static int
+nx_fw_cmd_create_tx_ctx(struct netxen_adapter *adapter)
+{
+	nx_hostrq_tx_ctx_t	*prq;
+	nx_hostrq_cds_ring_t	*prq_cds;
+	nx_cardrsp_tx_ctx_t	*prsp;
+	void	*rq_addr, *rsp_addr;
+	size_t	rq_size, rsp_size;
+	u32	temp;
+	int	err = 0;
+	u64	offset, phys_addr;
+	dma_addr_t	rq_phys_addr, rsp_phys_addr;
+	struct nx_host_tx_ring *tx_ring = adapter->tx_ring;
+	struct netxen_recv_context *recv_ctx = &adapter->recv_ctx;
+	struct netxen_cmd_args cmd;
+
+	rq_size = SIZEOF_HOSTRQ_TX(nx_hostrq_tx_ctx_t);
+	rq_addr = dma_alloc_coherent(&adapter->pdev->dev, rq_size,
+				     &rq_phys_addr, GFP_KERNEL);
+	if (!rq_addr)
+		return -ENOMEM;
+
+	rsp_size = SIZEOF_CARDRSP_TX(nx_cardrsp_tx_ctx_t);
+	rsp_addr = dma_alloc_coherent(&adapter->pdev->dev, rsp_size,
+				      &rsp_phys_addr, GFP_KERNEL);
+	if (!rsp_addr) {
+		err = -ENOMEM;
+		goto out_free_rq;
+	}
+
+	prq = rq_addr;
+
+	prsp = rsp_addr;
+
+	prq->host_rsp_dma_addr = cpu_to_le64(rsp_phys_addr);
+
+	temp = (NX_CAP0_LEGACY_CONTEXT | NX_CAP0_LEGACY_MN | NX_CAP0_LSO);
+	prq->capabilities[0] = cpu_to_le32(temp);
+
+	prq->host_int_crb_mode =
+		cpu_to_le32(NX_HOST_INT_CRB_MODE_SHARED);
+
+	prq->interrupt_ctl = 0;
+	prq->msi_index = 0;
+
+	prq->dummy_dma_addr = cpu_to_le64(adapter->dummy_dma.phys_addr);
+
+	offset = recv_ctx->phys_addr + sizeof(struct netxen_ring_ctx);
+	prq->cmd_cons_dma_addr = cpu_to_le64(offset);
+
+	prq_cds = &prq->cds_ring;
+
+	prq_cds->host_phys_addr = cpu_to_le64(tx_ring->phys_addr);
+	prq_cds->ring_size = cpu_to_le32(tx_ring->num_desc);
+
+	phys_addr = rq_phys_addr;
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.arg1 = (u32)(phys_addr >> 32);
+	cmd.req.arg2 = ((u32)phys_addr & 0xffffffff);
+	cmd.req.arg3 = rq_size;
+	cmd.req.cmd = NX_CDRP_CMD_CREATE_TX_CTX;
+	err = netxen_issue_cmd(adapter, &cmd);
+
+	if (err == NX_RCODE_SUCCESS) {
+		temp = le32_to_cpu(prsp->cds_ring.host_producer_crb);
+		tx_ring->crb_cmd_producer = netxen_get_ioaddr(adapter,
+				NETXEN_NIC_REG(temp - 0x200));
+#if 0
+		adapter->tx_state =
+			le32_to_cpu(prsp->host_ctx_state);
+#endif
+		adapter->tx_context_id =
+			le16_to_cpu(prsp->context_id);
+	} else {
+		printk(KERN_WARNING
+			"Failed to create tx ctx in firmware%d\n", err);
+		err = -EIO;
+	}
+
+	dma_free_coherent(&adapter->pdev->dev, rsp_size, rsp_addr,
+			  rsp_phys_addr);
+
+out_free_rq:
+	dma_free_coherent(&adapter->pdev->dev, rq_size, rq_addr, rq_phys_addr);
+
+	return err;
+}
+
+static void
+nx_fw_cmd_destroy_tx_ctx(struct netxen_adapter *adapter)
+{
+	struct netxen_cmd_args cmd;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.arg1 = adapter->tx_context_id;
+	cmd.req.arg2 = NX_DESTROY_CTX_RESET;
+	cmd.req.arg3 = 0;
+	cmd.req.cmd = NX_CDRP_CMD_DESTROY_TX_CTX;
+	if (netxen_issue_cmd(adapter, &cmd)) {
+		printk(KERN_WARNING
+			"%s: Failed to destroy tx ctx in firmware\n",
+			netxen_nic_driver_name);
+	}
+}
+
+int
+nx_fw_cmd_query_phy(struct netxen_adapter *adapter, u32 reg, u32 *val)
+{
+	u32 rcode;
+	struct netxen_cmd_args cmd;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.arg1 = reg;
+	cmd.req.arg2 = 0;
+	cmd.req.arg3 = 0;
+	cmd.req.cmd = NX_CDRP_CMD_READ_PHY;
+	cmd.rsp.arg1 = 1;
+	rcode = netxen_issue_cmd(adapter, &cmd);
+	if (rcode != NX_RCODE_SUCCESS)
+		return -EIO;
+
+	if (val == NULL)
+		return -EIO;
+
+	*val = cmd.rsp.arg1;
+	return 0;
+}
+
+int
+nx_fw_cmd_set_phy(struct netxen_adapter *adapter, u32 reg, u32 val)
+{
+	u32 rcode;
+	struct netxen_cmd_args cmd;
+
+	memset(&cmd, 0, sizeof(cmd));
+	cmd.req.arg1 = reg;
+	cmd.req.arg2 = val;
+	cmd.req.arg3 = 0;
+	cmd.req.cmd = NX_CDRP_CMD_WRITE_PHY;
+	rcode = netxen_issue_cmd(adapter, &cmd);
+	if (rcode != NX_RCODE_SUCCESS)
+		return -EIO;
+
+	return 0;
+}
+
+static u64 ctx_addr_sig_regs[][3] = {
+	{NETXEN_NIC_REG(0x188), NETXEN_NIC_REG(0x18c), NETXEN_NIC_REG(0x1c0)},
+	{NETXEN_NIC_REG(0x190), NETXEN_NIC_REG(0x194), NETXEN_NIC_REG(0x1c4)},
+	{NETXEN_NIC_REG(0x198), NETXEN_NIC_REG(0x19c), NETXEN_NIC_REG(0x1c8)},
+	{NETXEN_NIC_REG(0x1a0), NETXEN_NIC_REG(0x1a4), NETXEN_NIC_REG(0x1cc)}
+};
+
+#define CRB_CTX_ADDR_REG_LO(FUNC_ID)	(ctx_addr_sig_regs[FUNC_ID][0])
+#define CRB_CTX_ADDR_REG_HI(FUNC_ID)	(ctx_addr_sig_regs[FUNC_ID][2])
+#define CRB_CTX_SIGNATURE_REG(FUNC_ID)	(ctx_addr_sig_regs[FUNC_ID][1])
+
+#define lower32(x)	((u32)((x) & 0xffffffff))
+#define upper32(x)	((u32)(((u64)(x) >> 32) & 0xffffffff))
+
+static struct netxen_recv_crb recv_crb_registers[] = {
+	/* Instance 0 */
+	{
+		/* crb_rcv_producer: */
+		{
+			NETXEN_NIC_REG(0x100),
+			/* Jumbo frames */
+			NETXEN_NIC_REG(0x110),
+			/* LRO */
+			NETXEN_NIC_REG(0x120)
+		},
+		/* crb_sts_consumer: */
+		{
+			NETXEN_NIC_REG(0x138),
+			NETXEN_NIC_REG_2(0x000),
+			NETXEN_NIC_REG_2(0x004),
+			NETXEN_NIC_REG_2(0x008),
+		},
+		/* sw_int_mask */
+		{
+			CRB_SW_INT_MASK_0,
+			NETXEN_NIC_REG_2(0x044),
+			NETXEN_NIC_REG_2(0x048),
+			NETXEN_NIC_REG_2(0x04c),
+		},
+	},
+	/* Instance 1 */
+	{
+		/* crb_rcv_producer: */
+		{
+			NETXEN_NIC_REG(0x144),
+			/* Jumbo frames */
+			NETXEN_NIC_REG(0x154),
+			/* LRO */
+			NETXEN_NIC_REG(0x164)
+		},
+		/* crb_sts_consumer: */
+		{
+			NETXEN_NIC_REG(0x17c),
+			NETXEN_NIC_REG_2(0x020),
+			NETXEN_NIC_REG_2(0x024),
+			NETXEN_NIC_REG_2(0x028),
+		},
+		/* sw_int_mask */
+		{
+			CRB_SW_INT_MASK_1,
+			NETXEN_NIC_REG_2(0x064),
+			NETXEN_NIC_REG_2(0x068),
+			NETXEN_NIC_REG_2(0x06c),
+		},
+	},
+	/* Instance 2 */
+	{
+		/* crb_rcv_producer: */
+		{
+			NETXEN_NIC_REG(0x1d8),
+			/* Jumbo frames */
+			NETXEN_NIC_REG(0x1f8),
+			/* LRO */
+			NETXEN_NIC_REG(0x208)
+		},
+		/* crb_sts_consumer: */
+		{
+			NETXEN_NIC_REG(0x220),
+			NETXEN_NIC_REG_2(0x03c),
+			NETXEN_NIC_REG_2(0x03c),
+			NETXEN_NIC_REG_2(0x03c),
+		},
+		/* sw_int_mask */
+		{
+			CRB_SW_INT_MASK_2,
+			NETXEN_NIC_REG_2(0x03c),
+			NETXEN_NIC_REG_2(0x03c),
+			NETXEN_NIC_REG_2(0x03c),
+		},
+	},
+	/* Instance 3 */
+	{
+		/* crb_rcv_producer: */
+		{
+			NETXEN_NIC_REG(0x22c),
+			/* Jumbo frames */
+			NETXEN_NIC_REG(0x23c),
+			/* LRO */
+			NETXEN_NIC_REG(0x24c)
+		},
+		/* crb_sts_consumer: */
+		{
+			NETXEN_NIC_REG(0x264),
+			NETXEN_NIC_REG_2(0x03c),
+			NETXEN_NIC_REG_2(0x03c),
+			NETXEN_NIC_REG_2(0x03c),
+		},
+		/* sw_int_mask */
+		{
+			CRB_SW_INT_MASK_3,
+			NETXEN_NIC_REG_2(0x03c),
+			NETXEN_NIC_REG_2(0x03c),
+			NETXEN_NIC_REG_2(0x03c),
+		},
+	},
+};
+
+static int
+netxen_init_old_ctx(struct netxen_adapter *adapter)
+{
+	struct netxen_recv_context *recv_ctx;
+	struct nx_host_rds_ring *rds_ring;
+	struct nx_host_sds_ring *sds_ring;
+	struct nx_host_tx_ring *tx_ring;
+	int ring;
+	int port = adapter->portnum;
+	struct netxen_ring_ctx *hwctx;
+	u32 signature;
+
+	tx_ring = adapter->tx_ring;
+	recv_ctx = &adapter->recv_ctx;
+	hwctx = recv_ctx->hwctx;
+
+	hwctx->cmd_ring_addr = cpu_to_le64(tx_ring->phys_addr);
+	hwctx->cmd_ring_size = cpu_to_le32(tx_ring->num_desc);
+
+
+	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
+		rds_ring = &recv_ctx->rds_rings[ring];
+
+		hwctx->rcv_rings[ring].addr =
+			cpu_to_le64(rds_ring->phys_addr);
+		hwctx->rcv_rings[ring].size =
+			cpu_to_le32(rds_ring->num_desc);
+	}
+
+	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+		sds_ring = &recv_ctx->sds_rings[ring];
+
+		if (ring == 0) {
+			hwctx->sts_ring_addr = cpu_to_le64(sds_ring->phys_addr);
+			hwctx->sts_ring_size = cpu_to_le32(sds_ring->num_desc);
+		}
+		hwctx->sts_rings[ring].addr = cpu_to_le64(sds_ring->phys_addr);
+		hwctx->sts_rings[ring].size = cpu_to_le32(sds_ring->num_desc);
+		hwctx->sts_rings[ring].msi_index = cpu_to_le16(ring);
+	}
+	hwctx->sts_ring_count = cpu_to_le32(adapter->max_sds_rings);
+
+	signature = (adapter->max_sds_rings > 1) ?
+		NETXEN_CTX_SIGNATURE_V2 : NETXEN_CTX_SIGNATURE;
+
+	NXWR32(adapter, CRB_CTX_ADDR_REG_LO(port),
+			lower32(recv_ctx->phys_addr));
+	NXWR32(adapter, CRB_CTX_ADDR_REG_HI(port),
+			upper32(recv_ctx->phys_addr));
+	NXWR32(adapter, CRB_CTX_SIGNATURE_REG(port),
+			signature | port);
+	return 0;
+}
+
+int netxen_alloc_hw_resources(struct netxen_adapter *adapter)
+{
+	void *addr;
+	int err = 0;
+	int ring;
+	struct netxen_recv_context *recv_ctx;
+	struct nx_host_rds_ring *rds_ring;
+	struct nx_host_sds_ring *sds_ring;
+	struct nx_host_tx_ring *tx_ring;
+
+	struct pci_dev *pdev = adapter->pdev;
+	struct net_device *netdev = adapter->netdev;
+	int port = adapter->portnum;
+
+	recv_ctx = &adapter->recv_ctx;
+	tx_ring = adapter->tx_ring;
+
+	addr = dma_alloc_coherent(&pdev->dev,
+				  sizeof(struct netxen_ring_ctx) + sizeof(uint32_t),
+				  &recv_ctx->phys_addr, GFP_KERNEL);
+	if (addr == NULL) {
+		dev_err(&pdev->dev, "failed to allocate hw context\n");
+		return -ENOMEM;
+	}
+
+	recv_ctx->hwctx = addr;
+	recv_ctx->hwctx->ctx_id = cpu_to_le32(port);
+	recv_ctx->hwctx->cmd_consumer_offset =
+		cpu_to_le64(recv_ctx->phys_addr +
+			sizeof(struct netxen_ring_ctx));
+	tx_ring->hw_consumer =
+		(__le32 *)(((char *)addr) + sizeof(struct netxen_ring_ctx));
+
+	/* cmd desc ring */
+	addr = dma_alloc_coherent(&pdev->dev, TX_DESC_RINGSIZE(tx_ring),
+				  &tx_ring->phys_addr, GFP_KERNEL);
+
+	if (addr == NULL) {
+		dev_err(&pdev->dev, "%s: failed to allocate tx desc ring\n",
+				netdev->name);
+		err = -ENOMEM;
+		goto err_out_free;
+	}
+
+	tx_ring->desc_head = addr;
+
+	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
+		rds_ring = &recv_ctx->rds_rings[ring];
+		addr = dma_alloc_coherent(&adapter->pdev->dev,
+					  RCV_DESC_RINGSIZE(rds_ring),
+					  &rds_ring->phys_addr, GFP_KERNEL);
+		if (addr == NULL) {
+			dev_err(&pdev->dev,
+				"%s: failed to allocate rds ring [%d]\n",
+				netdev->name, ring);
+			err = -ENOMEM;
+			goto err_out_free;
+		}
+		rds_ring->desc_head = addr;
+
+		if (NX_IS_REVISION_P2(adapter->ahw.revision_id))
+			rds_ring->crb_rcv_producer =
+				netxen_get_ioaddr(adapter,
+			recv_crb_registers[port].crb_rcv_producer[ring]);
+	}
+
+	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+		sds_ring = &recv_ctx->sds_rings[ring];
+
+		addr = dma_alloc_coherent(&adapter->pdev->dev,
+					  STATUS_DESC_RINGSIZE(sds_ring),
+					  &sds_ring->phys_addr, GFP_KERNEL);
+		if (addr == NULL) {
+			dev_err(&pdev->dev,
+				"%s: failed to allocate sds ring [%d]\n",
+				netdev->name, ring);
+			err = -ENOMEM;
+			goto err_out_free;
+		}
+		sds_ring->desc_head = addr;
+
+		if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
+			sds_ring->crb_sts_consumer =
+				netxen_get_ioaddr(adapter,
+				recv_crb_registers[port].crb_sts_consumer[ring]);
+
+			sds_ring->crb_intr_mask =
+				netxen_get_ioaddr(adapter,
+				recv_crb_registers[port].sw_int_mask[ring]);
+		}
+	}
+
+
+	if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
+		if (test_and_set_bit(__NX_FW_ATTACHED, &adapter->state))
+			goto done;
+		err = nx_fw_cmd_create_rx_ctx(adapter);
+		if (err)
+			goto err_out_free;
+		err = nx_fw_cmd_create_tx_ctx(adapter);
+		if (err)
+			goto err_out_free;
+	} else {
+		err = netxen_init_old_ctx(adapter);
+		if (err)
+			goto err_out_free;
+	}
+
+done:
+	return 0;
+
+err_out_free:
+	netxen_free_hw_resources(adapter);
+	return err;
+}
+
+void netxen_free_hw_resources(struct netxen_adapter *adapter)
+{
+	struct netxen_recv_context *recv_ctx;
+	struct nx_host_rds_ring *rds_ring;
+	struct nx_host_sds_ring *sds_ring;
+	struct nx_host_tx_ring *tx_ring;
+	int ring;
+
+	int port = adapter->portnum;
+
+	if (!NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
+		if (!test_and_clear_bit(__NX_FW_ATTACHED, &adapter->state))
+			goto done;
+
+		nx_fw_cmd_destroy_rx_ctx(adapter);
+		nx_fw_cmd_destroy_tx_ctx(adapter);
+	} else {
+		netxen_api_lock(adapter);
+		NXWR32(adapter, CRB_CTX_SIGNATURE_REG(port),
+				NETXEN_CTX_D3_RESET | port);
+		netxen_api_unlock(adapter);
+	}
+
+	/* Allow dma queues to drain after context reset */
+	msleep(20);
+
+done:
+	recv_ctx = &adapter->recv_ctx;
+
+	if (recv_ctx->hwctx != NULL) {
+		dma_free_coherent(&adapter->pdev->dev,
+				  sizeof(struct netxen_ring_ctx) + sizeof(uint32_t),
+				  recv_ctx->hwctx, recv_ctx->phys_addr);
+		recv_ctx->hwctx = NULL;
+	}
+
+	tx_ring = adapter->tx_ring;
+	if (tx_ring->desc_head != NULL) {
+		dma_free_coherent(&adapter->pdev->dev,
+				  TX_DESC_RINGSIZE(tx_ring),
+				  tx_ring->desc_head, tx_ring->phys_addr);
+		tx_ring->desc_head = NULL;
+	}
+
+	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
+		rds_ring = &recv_ctx->rds_rings[ring];
+
+		if (rds_ring->desc_head != NULL) {
+			dma_free_coherent(&adapter->pdev->dev,
+					  RCV_DESC_RINGSIZE(rds_ring),
+					  rds_ring->desc_head,
+					  rds_ring->phys_addr);
+			rds_ring->desc_head = NULL;
+		}
+	}
+
+	for (ring = 0; ring < adapter->max_sds_rings; ring++) {
+		sds_ring = &recv_ctx->sds_rings[ring];
+
+		if (sds_ring->desc_head != NULL) {
+			dma_free_coherent(&adapter->pdev->dev,
+					  STATUS_DESC_RINGSIZE(sds_ring),
+					  sds_ring->desc_head,
+					  sds_ring->phys_addr);
+			sds_ring->desc_head = NULL;
+		}
+	}
+}
+