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Message-Id: <201006251512.54462.leedom@chelsio.com>
Date: Fri, 25 Jun 2010 15:12:54 -0700
From: Casey Leedom <leedom@...lsio.com>
To: netdev@...r.kernel.org
Subject: [PATCH 5/9] cxgb4vf: Add core T4 PCI-E SR-IOV Virtual Function hardware definitions and device communication code
Add core T4 PCI-E SR-IOV Virtual Function hardware definitions and device
communication code.
Signed-off-by: Casey Leedom
---
drivers/net/cxgb4vf/t4vf_common.h | 273 ++++++++
drivers/net/cxgb4vf/t4vf_defs.h | 121 ++++
drivers/net/cxgb4vf/t4vf_hw.c | 1333 +++++++++++++++++++++++++++++++++++++
3 files changed, 1727 insertions(+), 0 deletions(-)
diff --git a/drivers/net/cxgb4vf/t4vf_common.h
b/drivers/net/cxgb4vf/t4vf_common.h
new file mode 100644
index 0000000..5c7bde7
--- /dev/null
+++ b/drivers/net/cxgb4vf/t4vf_common.h
@@ -0,0 +1,273 @@
+/*
+ * This file is part of the Chelsio T4 PCI-E SR-IOV Virtual Function Ethernet
+ * driver for Linux.
+ *
+ * Copyright (c) 2009-2010 Chelsio Communications, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef __T4VF_COMMON_H__
+#define __T4VF_COMMON_H__
+
+#include "../cxgb4/t4fw_api.h"
+
+/*
+ * The "len16" field of a Firmware Command Structure ...
+ */
+#define FW_LEN16(fw_struct) FW_CMD_LEN16(sizeof(fw_struct) / 16)
+
+/*
+ * Per-VF statistics.
+ */
+struct t4vf_port_stats {
+ /*
+ * TX statistics.
+ */
+ u64 tx_bcast_bytes; /* broadcast */
+ u64 tx_bcast_frames;
+ u64 tx_mcast_bytes; /* multicast */
+ u64 tx_mcast_frames;
+ u64 tx_ucast_bytes; /* unicast */
+ u64 tx_ucast_frames;
+ u64 tx_drop_frames; /* TX dropped frames */
+ u64 tx_offload_bytes; /* offload */
+ u64 tx_offload_frames;
+
+ /*
+ * RX statistics.
+ */
+ u64 rx_bcast_bytes; /* broadcast */
+ u64 rx_bcast_frames;
+ u64 rx_mcast_bytes; /* multicast */
+ u64 rx_mcast_frames;
+ u64 rx_ucast_bytes;
+ u64 rx_ucast_frames; /* unicast */
+
+ u64 rx_err_frames; /* RX error frames */
+};
+
+/*
+ * Per-"port" (Virtual Interface) link configuration ...
+ */
+struct link_config {
+ unsigned int supported; /* link capabilities */
+ unsigned int advertising; /* advertised capabilities */
+ unsigned short requested_speed; /* speed user has requested */
+ unsigned short speed; /* actual link speed */
+ unsigned char requested_fc; /* flow control user has requested */
+ unsigned char fc; /* actual link flow control */
+ unsigned char autoneg; /* autonegotiating? */
+ unsigned char link_ok; /* link up? */
+};
+
+enum {
+ PAUSE_RX = 1 << 0,
+ PAUSE_TX = 1 << 1,
+ PAUSE_AUTONEG = 1 << 2
+};
+
+/*
+ * General device parameters ...
+ */
+struct dev_params {
+ u32 fwrev; /* firmware version */
+ u32 tprev; /* TP Microcode Version */
+};
+
+/*
+ * Scatter Gather Engine parameters. These are almost all determined by the
+ * Physical Function Driver. We just need to grab them to see within which
+ * environment we're playing ...
+ */
+struct sge_params {
+ u32 sge_control; /* padding, boundaries, lengths, etc. */
+ u32 sge_host_page_size; /* RDMA page sizes */
+ u32 sge_queues_per_page; /* RDMA queues/page */
+ u32 sge_user_mode_limits; /* limits for BAR2 user mode accesses */
+ u32 sge_fl_buffer_size[16]; /* free list buffer sizes */
+ u32 sge_ingress_rx_threshold; /* RX counter interrupt threshold[4] */
+ u32 sge_timer_value_0_and_1; /* interrupt coalescing timer values */
+ u32 sge_timer_value_2_and_3;
+ u32 sge_timer_value_4_and_5;
+};
+
+/*
+ * Vital Product Data parameters.
+ */
+struct vpd_params {
+ u32 cclk; /* Core Clock (KHz) */
+};
+
+/*
+ * Global Receive Side Scaling (RSS) parameters in host-native format.
+ */
+struct rss_params {
+ unsigned int mode; /* RSS mode */
+ union {
+ struct {
+ int synmapen:1; /* SYN Map Enable */
+ int syn4tupenipv6:1; /* enable hashing 4-tuple IPv6 SYNs */
+ int syn2tupenipv6:1; /* enable hashing 2-tuple IPv6 SYNs */
+ int syn4tupenipv4:1; /* enable hashing 4-tuple IPv4 SYNs */
+ int syn2tupenipv4:1; /* enable hashing 2-tuple IPv4 SYNs */
+ int ofdmapen:1; /* Offload Map Enable */
+ int tnlmapen:1; /* Tunnel Map Enable */
+ int tnlalllookup:1; /* Tunnel All Lookup */
+ int hashtoeplitz:1; /* use Toeplitz hash */
+ } basicvirtual;
+ } u;
+};
+
+/*
+ * Virtual Interface RSS Configuration in host-native format.
+ */
+union rss_vi_config {
+ struct {
+ u16 defaultq; /* Ingress Queue ID for !tnlalllookup */
+ int ip6fourtupen:1; /* hash 4-tuple IPv6 ingress packets */
+ int ip6twotupen:1; /* hash 2-tuple IPv6 ingress packets */
+ int ip4fourtupen:1; /* hash 4-tuple IPv4 ingress packets */
+ int ip4twotupen:1; /* hash 2-tuple IPv4 ingress packets */
+ int udpen; /* hash 4-tuple UDP ingress packets */
+ } basicvirtual;
+};
+
+/*
+ * Maximum resources provisioned for a PCI VF.
+ */
+struct vf_resources {
+ unsigned int nvi; /* N virtual interfaces */
+ unsigned int neq; /* N egress Qs */
+ unsigned int nethctrl; /* N egress ETH or CTRL Qs */
+ unsigned int niqflint; /* N ingress Qs/w free list(s) & intr */
+ unsigned int niq; /* N ingress Qs */
+ unsigned int tc; /* PCI-E traffic class */
+ unsigned int pmask; /* port access rights mask */
+ unsigned int nexactf; /* N exact MPS filters */
+ unsigned int r_caps; /* read capabilities */
+ unsigned int wx_caps; /* write/execute capabilities */
+};
+
+/*
+ * Per-"adapter" (Virtual Function) parameters.
+ */
+struct adapter_params {
+ struct dev_params dev; /* general device parameters */
+ struct sge_params sge; /* Scatter Gather Engine */
+ struct vpd_params vpd; /* Vital Product Data */
+ struct rss_params rss; /* Receive Side Scaling */
+ struct vf_resources vfres; /* Virtual Function Resource limits */
+ u8 nports; /* # of Ethernet "ports" */
+};
+
+#include "adapter.h"
+
+#ifndef PCI_VENDOR_ID_CHELSIO
+# define PCI_VENDOR_ID_CHELSIO 0x1425
+#endif
+
+#define for_each_port(adapter, iter) \
+ for (iter = 0; iter < (adapter)->params.nports; iter++)
+
+static inline bool is_10g_port(const struct link_config *lc)
+{
+ return (lc->supported & SUPPORTED_10000baseT_Full) != 0;
+}
+
+static inline unsigned int core_ticks_per_usec(const struct adapter *adapter)
+{
+ return adapter->params.vpd.cclk / 1000;
+}
+
+static inline unsigned int us_to_core_ticks(const struct adapter *adapter,
+ unsigned int us)
+{
+ return (us * adapter->params.vpd.cclk) / 1000;
+}
+
+static inline unsigned int core_ticks_to_us(const struct adapter *adapter,
+ unsigned int ticks)
+{
+ return (ticks * 1000) / adapter->params.vpd.cclk;
+}
+
+int t4vf_wr_mbox_core(struct adapter *, const void *, int, void *, bool);
+
+static inline int t4vf_wr_mbox(struct adapter *adapter, const void *cmd,
+ int size, void *rpl)
+{
+ return t4vf_wr_mbox_core(adapter, cmd, size, rpl, true);
+}
+
+static inline int t4vf_wr_mbox_ns(struct adapter *adapter, const void *cmd,
+ int size, void *rpl)
+{
+ return t4vf_wr_mbox_core(adapter, cmd, size, rpl, false);
+}
+
+int __devinit t4vf_wait_dev_ready(struct adapter *);
+int __devinit t4vf_port_init(struct adapter *, int);
+
+int t4vf_query_params(struct adapter *, unsigned int, const u32 *, u32 *);
+int t4vf_set_params(struct adapter *, unsigned int, const u32 *, const u32 *);
+
+int t4vf_get_sge_params(struct adapter *);
+int t4vf_get_vpd_params(struct adapter *);
+int t4vf_get_dev_params(struct adapter *);
+int t4vf_get_rss_glb_config(struct adapter *);
+int t4vf_get_vfres(struct adapter *);
+
+int t4vf_read_rss_vi_config(struct adapter *, unsigned int,
+ union rss_vi_config *);
+int t4vf_write_rss_vi_config(struct adapter *, unsigned int,
+ union rss_vi_config *);
+int t4vf_config_rss_range(struct adapter *, unsigned int, int, int,
+ const u16 *, int);
+
+int t4vf_alloc_vi(struct adapter *, int);
+int t4vf_free_vi(struct adapter *, int);
+int t4vf_enable_vi(struct adapter *, unsigned int, bool, bool);
+int t4vf_identify_port(struct adapter *, unsigned int, unsigned int);
+
+int t4vf_set_rxmode(struct adapter *, unsigned int, int, int, int, int, int,
+ bool);
+int t4vf_alloc_mac_filt(struct adapter *, unsigned int, bool, unsigned int,
+ const u8 **, u16 *, u64 *, bool);
+int t4vf_change_mac(struct adapter *, unsigned int, int, const u8 *, bool);
+int t4vf_set_addr_hash(struct adapter *, unsigned int, bool, u64, bool);
+int t4vf_get_port_stats(struct adapter *, int, struct t4vf_port_stats *);
+
+int t4vf_iq_free(struct adapter *, unsigned int, unsigned int, unsigned int,
+ unsigned int);
+int t4vf_eth_eq_free(struct adapter *, unsigned int);
+
+int t4vf_handle_fw_rpl(struct adapter *, const __be64 *);
+
+#endif /* __T4VF_COMMON_H__ */
diff --git a/drivers/net/cxgb4vf/t4vf_defs.h b/drivers/net/cxgb4vf/t4vf_defs.h
new file mode 100644
index 0000000..c7b127d
--- /dev/null
+++ b/drivers/net/cxgb4vf/t4vf_defs.h
@@ -0,0 +1,121 @@
+/*
+ * This file is part of the Chelsio T4 PCI-E SR-IOV Virtual Function Ethernet
+ * driver for Linux.
+ *
+ * Copyright (c) 2009-2010 Chelsio Communications, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#ifndef __T4VF_DEFS_H__
+#define __T4VF_DEFS_H__
+
+#include "../cxgb4/t4_regs.h"
+
+/*
+ * The VF Register Map.
+ *
+ * The Scatter Gather Engine (SGE), Multiport Support module (MPS), PIO Local
+ * bus module (PL) and CPU Interface Module (CIM) components are mapped via
+ * the Slice to Module Map Table (see below) in the Physical Function Register
+ * Map. The Mail Box Data (MBDATA) range is mapped via the PCI-E Mailbox Base
+ * and Offset registers in the PF Register Map. The MBDATA base address is
+ * quite constrained as it determines the Mailbox Data addresses for both PFs
+ * and VFs, and therefore must fit in both the VF and PF Register Maps without
+ * overlapping other registers.
+ */
+#define T4VF_SGE_BASE_ADDR 0x0000
+#define T4VF_MPS_BASE_ADDR 0x0100
+#define T4VF_PL_BASE_ADDR 0x0200
+#define T4VF_MBDATA_BASE_ADDR 0x0240
+#define T4VF_CIM_BASE_ADDR 0x0300
+
+#define T4VF_REGMAP_START 0x0000
+#define T4VF_REGMAP_SIZE 0x0400
+
+/*
+ * There's no hardware limitation which requires that the addresses of the
+ * Mailbox Data in the fixed CIM PF map and the programmable VF map must
+ * match. However, it's a useful convention ...
+ */
+#if T4VF_MBDATA_BASE_ADDR != CIM_PF_MAILBOX_DATA
+#error T4VF_MBDATA_BASE_ADDR must match CIM_PF_MAILBOX_DATA!
+#endif
+
+/*
+ * Virtual Function "Slice to Module Map Table" definitions.
+ *
+ * This table allows us to map subsets of the various module register sets
+ * into the T4VF Register Map. Each table entry identifies the index of the
+ * module whose registers are being mapped, the offset within the module's
+ * register set that the mapping should start at, the limit of the mapping,
+ * and the offset within the T4VF Register Map to which the module's registers
+ * are being mapped. All addresses and qualtities are in terms of 32-bit
+ * words. The "limit" value is also in terms of 32-bit words and is equal to
+ * the last address mapped in the T4VF Register Map 1 (i.e. it's a "<="
+ * relation rather than a "<").
+ */
+#define T4VF_MOD_MAP(module, index, first, last) \
+ T4VF_MOD_MAP_##module##_INDEX = (index), \
+ T4VF_MOD_MAP_##module##_FIRST = (first), \
+ T4VF_MOD_MAP_##module##_LAST = (last), \
+ T4VF_MOD_MAP_##module##_OFFSET = ((first)/4), \
+ T4VF_MOD_MAP_##module##_BASE = \
+ (T4VF_##module##_BASE_ADDR/4 + (first)/4), \
+ T4VF_MOD_MAP_##module##_LIMIT = \
+ (T4VF_##module##_BASE_ADDR/4 + (last)/4),
+
+#define SGE_VF_KDOORBELL 0x0
+#define SGE_VF_GTS 0x4
+#define MPS_VF_CTL 0x0
+#define MPS_VF_STAT_RX_VF_ERR_FRAMES_H 0xfc
+#define PL_VF_WHOAMI 0x0
+#define CIM_VF_EXT_MAILBOX_CTRL 0x0
+#define CIM_VF_EXT_MAILBOX_STATUS 0x4
+
+enum {
+ T4VF_MOD_MAP(SGE, 2, SGE_VF_KDOORBELL, SGE_VF_GTS)
+ T4VF_MOD_MAP(MPS, 0, MPS_VF_CTL, MPS_VF_STAT_RX_VF_ERR_FRAMES_H)
+ T4VF_MOD_MAP(PL, 3, PL_VF_WHOAMI, PL_VF_WHOAMI)
+ T4VF_MOD_MAP(CIM, 1, CIM_VF_EXT_MAILBOX_CTRL, CIM_VF_EXT_MAILBOX_STATUS)
+};
+
+/*
+ * There isn't a Slice to Module Map Table entry for the Mailbox Data
+ * registers, but it's convenient to use similar names as above. There are 8
+ * little-endian 64-bit Mailbox Data registers. Note that the "instances"
+ * value below is in terms of 32-bit words which matches the "word" addressing
+ * space we use above for the Slice to Module Map Space.
+ */
+#define NUM_CIM_VF_MAILBOX_DATA_INSTANCES 16
+
+#define T4VF_MBDATA_FIRST 0
+#define T4VF_MBDATA_LAST ((NUM_CIM_VF_MAILBOX_DATA_INSTANCES-1)*4)
+
+#endif /* __T4T4VF_DEFS_H__ */
diff --git a/drivers/net/cxgb4vf/t4vf_hw.c b/drivers/net/cxgb4vf/t4vf_hw.c
new file mode 100644
index 0000000..1ef2528
--- /dev/null
+++ b/drivers/net/cxgb4vf/t4vf_hw.c
@@ -0,0 +1,1333 @@
+/*
+ * This file is part of the Chelsio T4 PCI-E SR-IOV Virtual Function Ethernet
+ * driver for Linux.
+ *
+ * Copyright (c) 2009-2010 Chelsio Communications, Inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <linux/version.h>
+#include <linux/pci.h>
+
+#include "t4vf_common.h"
+#include "t4vf_defs.h"
+
+#include "../cxgb4/t4_regs.h"
+#include "../cxgb4/t4fw_api.h"
+
+/*
+ * Wait for the device to become ready (signified by our "who am I" register
+ * returning a value other than all 1's). Return an error if it doesn't
+ * become ready ...
+ */
+int __devinit t4vf_wait_dev_ready(struct adapter *adapter)
+{
+ const u32 whoami = T4VF_PL_BASE_ADDR + PL_VF_WHOAMI;
+ const u32 notready1 = 0xffffffff;
+ const u32 notready2 = 0xeeeeeeee;
+ u32 val;
+
+ val = t4_read_reg(adapter, whoami);
+ if (val != notready1 && val != notready2)
+ return 0;
+ msleep(500);
+ val = t4_read_reg(adapter, whoami);
+ if (val != notready1 && val != notready2)
+ return 0;
+ else
+ return -EIO;
+}
+
+/*
+ * Get the reply to a mailbox command and store it in @rpl in big-endian order
+ * (since the firmware data structures are specified in a big-endian layout).
+ */
+static void get_mbox_rpl(struct adapter *adapter, __be64 *rpl, int size,
+ u32 mbox_data)
+{
+ for ( ; size; size -= 8, mbox_data += 8)
+ *rpl++ = cpu_to_be64(t4_read_reg64(adapter, mbox_data));
+}
+
+/*
+ * Dump contents of mailbox with a leading tag.
+ */
+static void dump_mbox(struct adapter *adapter, const char *tag, u32 mbox_data)
+{
+ dev_err(adapter->pdev_dev,
+ "mbox %s: %llx %llx %llx %llx %llx %llx %llx %llx\n", tag,
+ (unsigned long long)t4_read_reg64(adapter, mbox_data + 0),
+ (unsigned long long)t4_read_reg64(adapter, mbox_data + 8),
+ (unsigned long long)t4_read_reg64(adapter, mbox_data + 16),
+ (unsigned long long)t4_read_reg64(adapter, mbox_data + 24),
+ (unsigned long long)t4_read_reg64(adapter, mbox_data + 32),
+ (unsigned long long)t4_read_reg64(adapter, mbox_data + 40),
+ (unsigned long long)t4_read_reg64(adapter, mbox_data + 48),
+ (unsigned long long)t4_read_reg64(adapter, mbox_data + 56));
+}
+
+/**
+ * t4vf_wr_mbox_core - send a command to FW through the mailbox
+ * @adapter: the adapter
+ * @cmd: the command to write
+ * @size: command length in bytes
+ * @rpl: where to optionally store the reply
+ * @sleep_ok: if true we may sleep while awaiting command completion
+ *
+ * Sends the given command to FW through the mailbox and waits for the
+ * FW to execute the command. If @rpl is not %NULL it is used to store
+ * the FW's reply to the command. The command and its optional reply
+ * are of the same length. FW can take up to 500 ms to respond.
+ * @sleep_ok determines whether we may sleep while awaiting the response.
+ * If sleeping is allowed we use progressive backoff otherwise we spin.
+ *
+ * The return value is 0 on success or a negative errno on failure. A
+ * failure can happen either because we are not able to execute the
+ * command or FW executes it but signals an error. In the latter case
+ * the return value is the error code indicated by FW (negated).
+ */
+int t4vf_wr_mbox_core(struct adapter *adapter, const void *cmd, int size,
+ void *rpl, bool sleep_ok)
+{
+ static int delay[] = {
+ 1, 1, 3, 5, 10, 10, 20, 50, 100
+ };
+
+ u32 v;
+ int i, ms, delay_idx;
+ const __be64 *p;
+ u32 mbox_data = T4VF_MBDATA_BASE_ADDR;
+ u32 mbox_ctl = T4VF_CIM_BASE_ADDR + CIM_VF_EXT_MAILBOX_CTRL;
+
+ /*
+ * Commands must be multiples of 16 bytes in length and may not be
+ * larger than the size of the Mailbox Data register array.
+ */
+ if ((size % 16) != 0 ||
+ size > NUM_CIM_VF_MAILBOX_DATA_INSTANCES * 4)
+ return -EINVAL;
+
+ /*
+ * Loop trying to get ownership of the mailbox. Return an error
+ * if we can't gain ownership.
+ */
+ v = MBOWNER_GET(t4_read_reg(adapter, mbox_ctl));
+ for (i = 0; v == MBOX_OWNER_NONE && i < 3; i++)
+ v = MBOWNER_GET(t4_read_reg(adapter, mbox_ctl));
+ if (v != MBOX_OWNER_DRV)
+ return v == MBOX_OWNER_FW ? -EBUSY : -ETIMEDOUT;
+
+ /*
+ * Write the command array into the Mailbox Data register array and
+ * transfer ownership of the mailbox to the firmware.
+ */
+ for (i = 0, p = cmd; i < size; i += 8)
+ t4_write_reg64(adapter, mbox_data + i, be64_to_cpu(*p++));
+ t4_write_reg(adapter, mbox_ctl,
+ MBMSGVALID | MBOWNER(MBOX_OWNER_FW));
+ t4_read_reg(adapter, mbox_ctl); /* flush write */
+
+ /*
+ * Spin waiting for firmware to acknowledge processing our command.
+ */
+ delay_idx = 0;
+ ms = delay[0];
+
+ for (i = 0; i < 500; i += ms) {
+ if (sleep_ok) {
+ ms = delay[delay_idx];
+ if (delay_idx < ARRAY_SIZE(delay))
+ delay_idx++;
+ msleep(ms);
+ } else
+ mdelay(ms);
+
+ /*
+ * If we're the owner, see if this is the reply we wanted.
+ */
+ v = t4_read_reg(adapter, mbox_ctl);
+ if (MBOWNER_GET(v) == MBOX_OWNER_DRV) {
+ /*
+ * If the Message Valid bit isn't on, revoke ownership
+ * of the mailbox and continue waiting for our reply.
+ */
+ if ((v & MBMSGVALID) == 0) {
+ t4_write_reg(adapter, mbox_ctl,
+ MBOWNER(MBOX_OWNER_NONE));
+ continue;
+ }
+
+ /*
+ * We now have our reply. Extract the command return
+ * value, copy the reply back to our caller's buffer
+ * (if specified) and revoke ownership of the mailbox.
+ * We return the (negated) firmware command return
+ * code (this depends on FW_SUCCESS == 0).
+ */
+
+ /* return value in low-order little-endian word */
+ v = t4_read_reg(adapter, mbox_data);
+ if (FW_CMD_RETVAL_GET(v))
+ dump_mbox(adapter, "FW Error", mbox_data);
+
+ if (rpl) {
+ /* request bit in high-order BE word */
+ WARN_ON((be32_to_cpu(*(const u32 *)cmd)
+ & FW_CMD_REQUEST) == 0);
+ get_mbox_rpl(adapter, rpl, size, mbox_data);
+ WARN_ON((be32_to_cpu(*(u32 *)rpl)
+ & FW_CMD_REQUEST) != 0);
+ }
+ t4_write_reg(adapter, mbox_ctl,
+ MBOWNER(MBOX_OWNER_NONE));
+ return -FW_CMD_RETVAL_GET(v);
+ }
+ }
+
+ /*
+ * We timed out. Return the error ...
+ */
+ dump_mbox(adapter, "FW Timeout", mbox_data);
+ return -ETIMEDOUT;
+}
+
+/**
+ * hash_mac_addr - return the hash value of a MAC address
+ * @addr: the 48-bit Ethernet MAC address
+ *
+ * Hashes a MAC address according to the hash function used by hardware
+ * inexact (hash) address matching.
+ */
+static int hash_mac_addr(const u8 *addr)
+{
+ u32 a = ((u32)addr[0] << 16) | ((u32)addr[1] << 8) | addr[2];
+ u32 b = ((u32)addr[3] << 16) | ((u32)addr[4] << 8) | addr[5];
+ a ^= b;
+ a ^= (a >> 12);
+ a ^= (a >> 6);
+ return a & 0x3f;
+}
+
+/**
+ * init_link_config - initialize a link's SW state
+ * @lc: structure holding the link state
+ * @caps: link capabilities
+ *
+ * Initializes the SW state maintained for each link, including the link's
+ * capabilities and default speed/flow-control/autonegotiation settings.
+ */
+static void __devinit init_link_config(struct link_config *lc,
+ unsigned int caps)
+{
+ lc->supported = caps;
+ lc->requested_speed = 0;
+ lc->speed = 0;
+ lc->requested_fc = lc->fc = PAUSE_RX | PAUSE_TX;
+ if (lc->supported & SUPPORTED_Autoneg) {
+ lc->advertising = lc->supported;
+ lc->autoneg = AUTONEG_ENABLE;
+ lc->requested_fc |= PAUSE_AUTONEG;
+ } else {
+ lc->advertising = 0;
+ lc->autoneg = AUTONEG_DISABLE;
+ }
+}
+
+/**
+ * t4vf_port_init - initialize port hardware/software state
+ * @adapter: the adapter
+ * @pidx: the adapter port index
+ */
+int __devinit t4vf_port_init(struct adapter *adapter, int pidx)
+{
+ struct port_info *pi = adap2pinfo(adapter, pidx);
+ struct fw_vi_cmd vi_cmd, vi_rpl;
+ struct fw_port_cmd port_cmd, port_rpl;
+ int v;
+ u32 word;
+
+ /*
+ * Execute a VI Read command to get our Virtual Interface information
+ * like MAC address, etc.
+ */
+ memset(&vi_cmd, 0, sizeof(vi_cmd));
+ vi_cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_VI_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_READ);
+ vi_cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(vi_cmd));
+ vi_cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID(pi->viid));
+ v = t4vf_wr_mbox(adapter, &vi_cmd, sizeof(vi_cmd), &vi_rpl);
+ if (v)
+ return v;
+
+ BUG_ON(pi->port_id != FW_VI_CMD_PORTID_GET(vi_rpl.portid_pkd));
+ pi->rss_size = FW_VI_CMD_RSSSIZE_GET(be16_to_cpu(vi_rpl.rsssize_pkd));
+ t4_os_set_hw_addr(adapter, pidx, vi_rpl.mac);
+
+ /*
+ * If we don't have read access to our port information, we're done
+ * now. Otherwise, execute a PORT Read command to get it ...
+ */
+ if (!(adapter->params.vfres.r_caps & FW_CMD_CAP_PORT))
+ return 0;
+
+ memset(&port_cmd, 0, sizeof(port_cmd));
+ port_cmd.op_to_portid = cpu_to_be32(FW_CMD_OP(FW_PORT_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_READ |
+ FW_PORT_CMD_PORTID(pi->port_id));
+ port_cmd.action_to_len16 =
+ cpu_to_be32(FW_PORT_CMD_ACTION(FW_PORT_ACTION_GET_PORT_INFO) |
+ FW_LEN16(port_cmd));
+ v = t4vf_wr_mbox(adapter, &port_cmd, sizeof(port_cmd), &port_rpl);
+ if (v)
+ return v;
+
+ v = 0;
+ word = be16_to_cpu(port_rpl.u.info.pcap);
+ if (word & FW_PORT_CAP_SPEED_100M)
+ v |= SUPPORTED_100baseT_Full;
+ if (word & FW_PORT_CAP_SPEED_1G)
+ v |= SUPPORTED_1000baseT_Full;
+ if (word & FW_PORT_CAP_SPEED_10G)
+ v |= SUPPORTED_10000baseT_Full;
+ if (word & FW_PORT_CAP_ANEG)
+ v |= SUPPORTED_Autoneg;
+ init_link_config(&pi->link_cfg, v);
+
+ return 0;
+}
+
+/**
+ * t4vf_query_params - query FW or device parameters
+ * @adapter: the adapter
+ * @nparams: the number of parameters
+ * @params: the parameter names
+ * @vals: the parameter values
+ *
+ * Reads the values of firmware or device parameters. Up to 7 parameters
+ * can be queried at once.
+ */
+int t4vf_query_params(struct adapter *adapter, unsigned int nparams,
+ const u32 *params, u32 *vals)
+{
+ int i, ret;
+ struct fw_params_cmd cmd, rpl;
+ struct fw_params_param *p;
+ size_t len16;
+
+ if (nparams > 7)
+ return -EINVAL;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_PARAMS_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_READ);
+ len16 = DIV_ROUND_UP(offsetof(struct fw_params_cmd,
+ param[nparams].mnem), 16);
+ cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16(len16));
+ for (i = 0, p = &cmd.param[0]; i < nparams; i++, p++)
+ p->mnem = htonl(*params++);
+
+ ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
+ if (ret == 0)
+ for (i = 0, p = &rpl.param[0]; i < nparams; i++, p++)
+ *vals++ = be32_to_cpu(p->val);
+ return ret;
+}
+
+/**
+ * t4vf_set_params - sets FW or device parameters
+ * @adapter: the adapter
+ * @nparams: the number of parameters
+ * @params: the parameter names
+ * @vals: the parameter values
+ *
+ * Sets the values of firmware or device parameters. Up to 7 parameters
+ * can be specified at once.
+ */
+int t4vf_set_params(struct adapter *adapter, unsigned int nparams,
+ const u32 *params, const u32 *vals)
+{
+ int i;
+ struct fw_params_cmd cmd;
+ struct fw_params_param *p;
+ size_t len16;
+
+ if (nparams > 7)
+ return -EINVAL;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_PARAMS_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_WRITE);
+ len16 = DIV_ROUND_UP(offsetof(struct fw_params_cmd,
+ param[nparams]), 16);
+ cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16(len16));
+ for (i = 0, p = &cmd.param[0]; i < nparams; i++, p++) {
+ p->mnem = cpu_to_be32(*params++);
+ p->val = cpu_to_be32(*vals++);
+ }
+
+ return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
+}
+
+/**
+ * t4vf_get_sge_params - retrieve adapter Scatter gather Engine parameters
+ * @adapter: the adapter
+ *
+ * Retrieves various core SGE parameters in the form of hardware SGE
+ * register values. The caller is responsible for decoding these as
+ * needed. The SGE parameters are stored in @adapter->params.sge.
+ */
+int t4vf_get_sge_params(struct adapter *adapter)
+{
+ struct sge_params *sge_params = &adapter->params.sge;
+ u32 params[7], vals[7];
+ int v;
+
+ params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) |
+ FW_PARAMS_PARAM_XYZ(SGE_CONTROL));
+ params[1] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) |
+ FW_PARAMS_PARAM_XYZ(SGE_HOST_PAGE_SIZE));
+ params[2] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) |
+ FW_PARAMS_PARAM_XYZ(SGE_FL_BUFFER_SIZE0));
+ params[3] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) |
+ FW_PARAMS_PARAM_XYZ(SGE_FL_BUFFER_SIZE1));
+ params[4] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) |
+ FW_PARAMS_PARAM_XYZ(SGE_TIMER_VALUE_0_AND_1));
+ params[5] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) |
+ FW_PARAMS_PARAM_XYZ(SGE_TIMER_VALUE_2_AND_3));
+ params[6] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) |
+ FW_PARAMS_PARAM_XYZ(SGE_TIMER_VALUE_4_AND_5));
+ v = t4vf_query_params(adapter, 7, params, vals);
+ if (v)
+ return v;
+ sge_params->sge_control = vals[0];
+ sge_params->sge_host_page_size = vals[1];
+ sge_params->sge_fl_buffer_size[0] = vals[2];
+ sge_params->sge_fl_buffer_size[1] = vals[3];
+ sge_params->sge_timer_value_0_and_1 = vals[4];
+ sge_params->sge_timer_value_2_and_3 = vals[5];
+ sge_params->sge_timer_value_4_and_5 = vals[6];
+
+ params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_REG) |
+ FW_PARAMS_PARAM_XYZ(SGE_INGRESS_RX_THRESHOLD));
+ v = t4vf_query_params(adapter, 1, params, vals);
+ if (v)
+ return v;
+ sge_params->sge_ingress_rx_threshold = vals[0];
+
+ return 0;
+}
+
+/**
+ * t4vf_get_vpd_params - retrieve device VPD paremeters
+ * @adapter: the adapter
+ *
+ * Retrives various device Vital Product Data parameters. The parameters
+ * are stored in @adapter->params.vpd.
+ */
+int t4vf_get_vpd_params(struct adapter *adapter)
+{
+ struct vpd_params *vpd_params = &adapter->params.vpd;
+ u32 params[7], vals[7];
+ int v;
+
+ params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
+ FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_CCLK));
+ v = t4vf_query_params(adapter, 1, params, vals);
+ if (v)
+ return v;
+ vpd_params->cclk = vals[0];
+
+ return 0;
+}
+
+/**
+ * t4vf_get_dev_params - retrieve device paremeters
+ * @adapter: the adapter
+ *
+ * Retrives various device parameters. The parameters are stored in
+ * @adapter->params.dev.
+ */
+int t4vf_get_dev_params(struct adapter *adapter)
+{
+ struct dev_params *dev_params = &adapter->params.dev;
+ u32 params[7], vals[7];
+ int v;
+
+ params[0] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
+ FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_FWREV));
+ params[1] = (FW_PARAMS_MNEM(FW_PARAMS_MNEM_DEV) |
+ FW_PARAMS_PARAM_X(FW_PARAMS_PARAM_DEV_TPREV));
+ v = t4vf_query_params(adapter, 2, params, vals);
+ if (v)
+ return v;
+ dev_params->fwrev = vals[0];
+ dev_params->tprev = vals[1];
+
+ return 0;
+}
+
+/**
+ * t4vf_get_rss_glb_config - retrieve adapter RSS Global Configuration
+ * @adapter: the adapter
+ *
+ * Retrieves global RSS mode and parameters with which we have to live
+ * and stores them in the @adapter's RSS parameters.
+ */
+int t4vf_get_rss_glb_config(struct adapter *adapter)
+{
+ struct rss_params *rss = &adapter->params.rss;
+ struct fw_rss_glb_config_cmd cmd, rpl;
+ int v;
+
+ /*
+ * Execute an RSS Global Configuration read command to retrieve
+ * our RSS configuration.
+ */
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_write = cpu_to_be32(FW_CMD_OP(FW_RSS_GLB_CONFIG_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_READ);
+ cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
+ v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
+ if (v)
+ return v;
+
+ /*
+ * Transate the big-endian RSS Global Configuration into our
+ * cpu-endian format based on the RSS mode. We also do first level
+ * filtering at this point to weed out modes which don't support
+ * VF Drivers ...
+ */
+ rss->mode = FW_RSS_GLB_CONFIG_CMD_MODE_GET(
+ be32_to_cpu(rpl.u.manual.mode_pkd));
+ switch (rss->mode) {
+ case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
+ u32 word = be32_to_cpu(
+ rpl.u.basicvirtual.synmapen_to_hashtoeplitz);
+
+ rss->u.basicvirtual.synmapen =
+ ((word & FW_RSS_GLB_CONFIG_CMD_SYNMAPEN) != 0);
+ rss->u.basicvirtual.syn4tupenipv6 =
+ ((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV6) != 0);
+ rss->u.basicvirtual.syn2tupenipv6 =
+ ((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV6) != 0);
+ rss->u.basicvirtual.syn4tupenipv4 =
+ ((word & FW_RSS_GLB_CONFIG_CMD_SYN4TUPENIPV4) != 0);
+ rss->u.basicvirtual.syn2tupenipv4 =
+ ((word & FW_RSS_GLB_CONFIG_CMD_SYN2TUPENIPV4) != 0);
+
+ rss->u.basicvirtual.ofdmapen =
+ ((word & FW_RSS_GLB_CONFIG_CMD_OFDMAPEN) != 0);
+
+ rss->u.basicvirtual.tnlmapen =
+ ((word & FW_RSS_GLB_CONFIG_CMD_TNLMAPEN) != 0);
+ rss->u.basicvirtual.tnlalllookup =
+ ((word & FW_RSS_GLB_CONFIG_CMD_TNLALLLKP) != 0);
+
+ rss->u.basicvirtual.hashtoeplitz =
+ ((word & FW_RSS_GLB_CONFIG_CMD_HASHTOEPLITZ) != 0);
+
+ /* we need at least Tunnel Map Enable to be set */
+ if (!rss->u.basicvirtual.tnlmapen)
+ return -EINVAL;
+ break;
+ }
+
+ default:
+ /* all unknown/unsupported RSS modes result in an error */
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/**
+ * t4vf_get_vfres - retrieve VF resource limits
+ * @adapter: the adapter
+ *
+ * Retrieves configured resource limits and capabilities for a virtual
+ * function. The results are stored in @adapter->vfres.
+ */
+int t4vf_get_vfres(struct adapter *adapter)
+{
+ struct vf_resources *vfres = &adapter->params.vfres;
+ struct fw_pfvf_cmd cmd, rpl;
+ int v;
+ u32 word;
+
+ /*
+ * Execute PFVF Read command to get VF resource limits; bail out early
+ * with error on command failure.
+ */
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_PFVF_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_READ);
+ cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
+ v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
+ if (v)
+ return v;
+
+ /*
+ * Extract VF resource limits and return success.
+ */
+ word = be32_to_cpu(rpl.niqflint_niq);
+ vfres->niqflint = FW_PFVF_CMD_NIQFLINT_GET(word);
+ vfres->niq = FW_PFVF_CMD_NIQ_GET(word);
+
+ word = be32_to_cpu(rpl.type_to_neq);
+ vfres->neq = FW_PFVF_CMD_NEQ_GET(word);
+ vfres->pmask = FW_PFVF_CMD_PMASK_GET(word);
+
+ word = be32_to_cpu(rpl.tc_to_nexactf);
+ vfres->tc = FW_PFVF_CMD_TC_GET(word);
+ vfres->nvi = FW_PFVF_CMD_NVI_GET(word);
+ vfres->nexactf = FW_PFVF_CMD_NEXACTF_GET(word);
+
+ word = be32_to_cpu(rpl.r_caps_to_nethctrl);
+ vfres->r_caps = FW_PFVF_CMD_R_CAPS_GET(word);
+ vfres->wx_caps = FW_PFVF_CMD_WX_CAPS_GET(word);
+ vfres->nethctrl = FW_PFVF_CMD_NETHCTRL_GET(word);
+
+ return 0;
+}
+
+/**
+ * t4vf_read_rss_vi_config - read a VI's RSS configuration
+ * @adapter: the adapter
+ * @viid: Virtual Interface ID
+ * @config: pointer to host-native VI RSS Configuration buffer
+ *
+ * Reads the Virtual Interface's RSS configuration information and
+ * translates it into CPU-native format.
+ */
+int t4vf_read_rss_vi_config(struct adapter *adapter, unsigned int viid,
+ union rss_vi_config *config)
+{
+ struct fw_rss_vi_config_cmd cmd, rpl;
+ int v;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_RSS_VI_CONFIG_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_READ |
+ FW_RSS_VI_CONFIG_CMD_VIID(viid));
+ cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
+ v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
+ if (v)
+ return v;
+
+ switch (adapter->params.rss.mode) {
+ case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
+ u32 word = be32_to_cpu(rpl.u.basicvirtual.defaultq_to_udpen);
+
+ config->basicvirtual.ip6fourtupen =
+ ((word & FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN) != 0);
+ config->basicvirtual.ip6twotupen =
+ ((word & FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN) != 0);
+ config->basicvirtual.ip4fourtupen =
+ ((word & FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN) != 0);
+ config->basicvirtual.ip4twotupen =
+ ((word & FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN) != 0);
+ config->basicvirtual.udpen =
+ ((word & FW_RSS_VI_CONFIG_CMD_UDPEN) != 0);
+ config->basicvirtual.defaultq =
+ FW_RSS_VI_CONFIG_CMD_DEFAULTQ_GET(word);
+ break;
+ }
+
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/**
+ * t4vf_write_rss_vi_config - write a VI's RSS configuration
+ * @adapter: the adapter
+ * @viid: Virtual Interface ID
+ * @config: pointer to host-native VI RSS Configuration buffer
+ *
+ * Write the Virtual Interface's RSS configuration information
+ * (translating it into firmware-native format before writing).
+ */
+int t4vf_write_rss_vi_config(struct adapter *adapter, unsigned int viid,
+ union rss_vi_config *config)
+{
+ struct fw_rss_vi_config_cmd cmd, rpl;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_RSS_VI_CONFIG_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_WRITE |
+ FW_RSS_VI_CONFIG_CMD_VIID(viid));
+ cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
+ switch (adapter->params.rss.mode) {
+ case FW_RSS_GLB_CONFIG_CMD_MODE_BASICVIRTUAL: {
+ u32 word = 0;
+
+ if (config->basicvirtual.ip6fourtupen)
+ word |= FW_RSS_VI_CONFIG_CMD_IP6FOURTUPEN;
+ if (config->basicvirtual.ip6twotupen)
+ word |= FW_RSS_VI_CONFIG_CMD_IP6TWOTUPEN;
+ if (config->basicvirtual.ip4fourtupen)
+ word |= FW_RSS_VI_CONFIG_CMD_IP4FOURTUPEN;
+ if (config->basicvirtual.ip4twotupen)
+ word |= FW_RSS_VI_CONFIG_CMD_IP4TWOTUPEN;
+ if (config->basicvirtual.udpen)
+ word |= FW_RSS_VI_CONFIG_CMD_UDPEN;
+ word |= FW_RSS_VI_CONFIG_CMD_DEFAULTQ(
+ config->basicvirtual.defaultq);
+ cmd.u.basicvirtual.defaultq_to_udpen = cpu_to_be32(word);
+ break;
+ }
+
+ default:
+ return -EINVAL;
+ }
+
+ return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
+}
+
+/**
+ * t4vf_config_rss_range - configure a portion of the RSS mapping table
+ * @adapter: the adapter
+ * @viid: Virtual Interface of RSS Table Slice
+ * @start: starting entry in the table to write
+ * @n: how many table entries to write
+ * @rspq: values for the "Response Queue" (Ingress Queue) lookup table
+ * @nrspq: number of values in @rspq
+ *
+ * Programs the selected part of the VI's RSS mapping table with the
+ * provided values. If @nrspq < @n the supplied values are used repeatedly
+ * until the full table range is populated.
+ *
+ * The caller must ensure the values in @rspq are in the range 0..1023.
+ */
+int t4vf_config_rss_range(struct adapter *adapter, unsigned int viid,
+ int start, int n, const u16 *rspq, int nrspq)
+{
+ const u16 *rsp = rspq;
+ const u16 *rsp_end = rspq+nrspq;
+ struct fw_rss_ind_tbl_cmd cmd;
+
+ /*
+ * Initialize firmware command template to write the RSS table.
+ */
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_RSS_IND_TBL_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_WRITE |
+ FW_RSS_IND_TBL_CMD_VIID(viid));
+ cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
+
+ /*
+ * Each firmware RSS command can accommodate up to 32 RSS Ingress
+ * Queue Identifiers. These Ingress Queue IDs are packed three to
+ * a 32-bit word as 10-bit values with the upper remaining 2 bits
+ * reserved.
+ */
+ while (n > 0) {
+ __be32 *qp = &cmd.iq0_to_iq2;
+ int nq = min(n, 32);
+ int ret;
+
+ /*
+ * Set up the firmware RSS command header to send the next
+ * "nq" Ingress Queue IDs to the firmware.
+ */
+ cmd.niqid = cpu_to_be16(nq);
+ cmd.startidx = cpu_to_be16(start);
+
+ /*
+ * "nq" more done for the start of the next loop.
+ */
+ start += nq;
+ n -= nq;
+
+ /*
+ * While there are still Ingress Queue IDs to stuff into the
+ * current firmware RSS command, retrieve them from the
+ * Ingress Queue ID array and insert them into the command.
+ */
+ while (nq > 0) {
+ /*
+ * Grab up to the next 3 Ingress Queue IDs (wrapping
+ * around the Ingress Queue ID array if necessary) and
+ * insert them into the firmware RSS command at the
+ * current 3-tuple position within the commad.
+ */
+ u16 qbuf[3];
+ u16 *qbp = qbuf;
+ int nqbuf = min(3, nq);
+
+ nq -= nqbuf;
+ qbuf[0] = qbuf[1] = qbuf[2] = 0;
+ while (nqbuf) {
+ nqbuf--;
+ *qbp++ = *rsp++;
+ if (rsp >= rsp_end)
+ rsp = rspq;
+ }
+ *qp++ = cpu_to_be32(FW_RSS_IND_TBL_CMD_IQ0(qbuf[0]) |
+ FW_RSS_IND_TBL_CMD_IQ1(qbuf[1]) |
+ FW_RSS_IND_TBL_CMD_IQ2(qbuf[2]));
+ }
+
+ /*
+ * Send this portion of the RRS table update to the firmware;
+ * bail out on any errors.
+ */
+ ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
+ if (ret)
+ return ret;
+ }
+ return 0;
+}
+
+/**
+ * t4vf_alloc_vi - allocate a virtual interface on a port
+ * @adapter: the adapter
+ * @port_id: physical port associated with the VI
+ *
+ * Allocate a new Virtual Interface and bind it to the indicated
+ * physical port. Return the new Virtual Interface Identifier on
+ * success, or a [negative] error number on failure.
+ */
+int t4vf_alloc_vi(struct adapter *adapter, int port_id)
+{
+ struct fw_vi_cmd cmd, rpl;
+ int v;
+
+ /*
+ * Execute a VI command to allocate Virtual Interface and return its
+ * VIID.
+ */
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_VI_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_WRITE |
+ FW_CMD_EXEC);
+ cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) |
+ FW_VI_CMD_ALLOC);
+ cmd.portid_pkd = FW_VI_CMD_PORTID(port_id);
+ v = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
+ if (v)
+ return v;
+
+ return FW_VI_CMD_VIID_GET(be16_to_cpu(rpl.type_viid));
+}
+
+/**
+ * t4vf_free_vi -- free a virtual interface
+ * @adapter: the adapter
+ * @viid: the virtual interface identifier
+ *
+ * Free a previously allocated Virtual Interface. Return an error on
+ * failure.
+ */
+int t4vf_free_vi(struct adapter *adapter, int viid)
+{
+ struct fw_vi_cmd cmd;
+
+ /*
+ * Execute a VI command to free the Virtual Interface.
+ */
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_VI_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_EXEC);
+ cmd.alloc_to_len16 = cpu_to_be32(FW_LEN16(cmd) |
+ FW_VI_CMD_FREE);
+ cmd.type_viid = cpu_to_be16(FW_VI_CMD_VIID(viid));
+ return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
+}
+
+/**
+ * t4vf_enable_vi - enable/disable a virtual interface
+ * @adapter: the adapter
+ * @viid: the Virtual Interface ID
+ * @rx_en: 1=enable Rx, 0=disable Rx
+ * @tx_en: 1=enable Tx, 0=disable Tx
+ *
+ * Enables/disables a virtual interface.
+ */
+int t4vf_enable_vi(struct adapter *adapter, unsigned int viid,
+ bool rx_en, bool tx_en)
+{
+ struct fw_vi_enable_cmd cmd;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_ENABLE_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_EXEC |
+ FW_VI_ENABLE_CMD_VIID(viid));
+ cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_IEN(rx_en) |
+ FW_VI_ENABLE_CMD_EEN(tx_en) |
+ FW_LEN16(cmd));
+ return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
+}
+
+/**
+ * t4vf_identify_port - identify a VI's port by blinking its LED
+ * @adapter: the adapter
+ * @viid: the Virtual Interface ID
+ * @nblinks: how many times to blink LED at 2.5 Hz
+ *
+ * Identifies a VI's port by blinking its LED.
+ */
+int t4vf_identify_port(struct adapter *adapter, unsigned int viid,
+ unsigned int nblinks)
+{
+ struct fw_vi_enable_cmd cmd;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_ENABLE_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_EXEC |
+ FW_VI_ENABLE_CMD_VIID(viid));
+ cmd.ien_to_len16 = cpu_to_be32(FW_VI_ENABLE_CMD_LED |
+ FW_LEN16(cmd));
+ cmd.blinkdur = cpu_to_be16(nblinks);
+ return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
+}
+
+/**
+ * t4vf_set_rxmode - set Rx properties of a virtual interface
+ * @adapter: the adapter
+ * @viid: the VI id
+ * @mtu: the new MTU or -1 for no change
+ * @promisc: 1 to enable promiscuous mode, 0 to disable it, -1 no change
+ * @all_multi: 1 to enable all-multi mode, 0 to disable it, -1 no change
+ * @bcast: 1 to enable broadcast Rx, 0 to disable it, -1 no change
+ * @vlanex: 1 to enable hardware VLAN Tag extraction, 0 to disable it,
+ * -1 no change
+ *
+ * Sets Rx properties of a virtual interface.
+ */
+int t4vf_set_rxmode(struct adapter *adapter, unsigned int viid,
+ int mtu, int promisc, int all_multi, int bcast, int vlanex,
+ bool sleep_ok)
+{
+ struct fw_vi_rxmode_cmd cmd;
+
+ /* convert to FW values */
+ if (mtu < 0)
+ mtu = FW_VI_RXMODE_CMD_MTU_MASK;
+ if (promisc < 0)
+ promisc = FW_VI_RXMODE_CMD_PROMISCEN_MASK;
+ if (all_multi < 0)
+ all_multi = FW_VI_RXMODE_CMD_ALLMULTIEN_MASK;
+ if (bcast < 0)
+ bcast = FW_VI_RXMODE_CMD_BROADCASTEN_MASK;
+ if (vlanex < 0)
+ vlanex = FW_VI_RXMODE_CMD_VLANEXEN_MASK;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_RXMODE_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_WRITE |
+ FW_VI_RXMODE_CMD_VIID(viid));
+ cmd.retval_len16 = cpu_to_be32(FW_LEN16(cmd));
+ cmd.mtu_to_vlanexen =
+ cpu_to_be32(FW_VI_RXMODE_CMD_MTU(mtu) |
+ FW_VI_RXMODE_CMD_PROMISCEN(promisc) |
+ FW_VI_RXMODE_CMD_ALLMULTIEN(all_multi) |
+ FW_VI_RXMODE_CMD_BROADCASTEN(bcast) |
+ FW_VI_RXMODE_CMD_VLANEXEN(vlanex));
+ return t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), NULL, sleep_ok);
+}
+
+/**
+ * t4vf_alloc_mac_filt - allocates exact-match filters for MAC addresses
+ * @adapter: the adapter
+ * @viid: the Virtual Interface Identifier
+ * @free: if true any existing filters for this VI id are first removed
+ * @naddr: the number of MAC addresses to allocate filters for (up to 7)
+ * @addr: the MAC address(es)
+ * @idx: where to store the index of each allocated filter
+ * @hash: pointer to hash address filter bitmap
+ * @sleep_ok: call is allowed to sleep
+ *
+ * Allocates an exact-match filter for each of the supplied addresses and
+ * sets it to the corresponding address. If @idx is not %NULL it should
+ * have at least @naddr entries, each of which will be set to the index of
+ * the filter allocated for the corresponding MAC address. If a filter
+ * could not be allocated for an address its index is set to 0xffff.
+ * If @hash is not %NULL addresses that fail to allocate an exact filter
+ * are hashed and update the hash filter bitmap pointed at by @hash.
+ *
+ * Returns a negative error number or the number of filters allocated.
+ */
+int t4vf_alloc_mac_filt(struct adapter *adapter, unsigned int viid, bool free,
+ unsigned int naddr, const u8 **addr, u16 *idx,
+ u64 *hash, bool sleep_ok)
+{
+ int i, ret;
+ struct fw_vi_mac_cmd cmd, rpl;
+ struct fw_vi_mac_exact *p;
+ size_t len16;
+
+ if (naddr > ARRAY_SIZE(cmd.u.exact))
+ return -EINVAL;
+ len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
+ u.exact[naddr]), 16);
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_MAC_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_WRITE |
+ (free ? FW_CMD_EXEC : 0) |
+ FW_VI_MAC_CMD_VIID(viid));
+ cmd.freemacs_to_len16 = cpu_to_be32(FW_VI_MAC_CMD_FREEMACS(free) |
+ FW_CMD_LEN16(len16));
+
+ for (i = 0, p = cmd.u.exact; i < naddr; i++, p++) {
+ p->valid_to_idx =
+ cpu_to_be16(FW_VI_MAC_CMD_VALID |
+ FW_VI_MAC_CMD_IDX(FW_VI_MAC_ADD_MAC));
+ memcpy(p->macaddr, addr[i], sizeof(p->macaddr));
+ }
+
+ ret = t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), &rpl, sleep_ok);
+ if (ret)
+ return ret;
+
+ for (i = 0, p = rpl.u.exact; i < naddr; i++, p++) {
+ u16 index = FW_VI_MAC_CMD_IDX_GET(be16_to_cpu(p->valid_to_idx));
+
+ if (idx)
+ idx[i] = (index >= FW_CLS_TCAM_NUM_ENTRIES
+ ? 0xffff
+ : index);
+ if (index < FW_CLS_TCAM_NUM_ENTRIES)
+ ret++;
+ else if (hash)
+ *hash |= (1 << hash_mac_addr(addr[i]));
+ }
+ return ret;
+}
+
+/**
+ * t4vf_change_mac - modifies the exact-match filter for a MAC address
+ * @adapter: the adapter
+ * @viid: the Virtual Interface ID
+ * @idx: index of existing filter for old value of MAC address, or -1
+ * @addr: the new MAC address value
+ * @persist: if idx < 0, the new MAC allocation should be persistent
+ *
+ * Modifies an exact-match filter and sets it to the new MAC address.
+ * Note that in general it is not possible to modify the value of a given
+ * filter so the generic way to modify an address filter is to free the
+ * one being used by the old address value and allocate a new filter for
+ * the new address value. @idx can be -1 if the address is a new
+ * addition.
+ *
+ * Returns a negative error number or the index of the filter with the new
+ * MAC value.
+ */
+int t4vf_change_mac(struct adapter *adapter, unsigned int viid,
+ int idx, const u8 *addr, bool persist)
+{
+ int ret;
+ struct fw_vi_mac_cmd cmd, rpl;
+ struct fw_vi_mac_exact *p = &cmd.u.exact[0];
+ size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
+ u.exact[1]), 16);
+
+ /*
+ * If this is a new allocation, determine whether it should be
+ * persistent (across a "freemacs" operation) or not.
+ */
+ if (idx < 0)
+ idx = persist ? FW_VI_MAC_ADD_PERSIST_MAC : FW_VI_MAC_ADD_MAC;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_MAC_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_WRITE |
+ FW_VI_MAC_CMD_VIID(viid));
+ cmd.freemacs_to_len16 = cpu_to_be32(FW_CMD_LEN16(len16));
+ p->valid_to_idx = cpu_to_be16(FW_VI_MAC_CMD_VALID |
+ FW_VI_MAC_CMD_IDX(idx));
+ memcpy(p->macaddr, addr, sizeof(p->macaddr));
+
+ ret = t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), &rpl);
+ if (ret == 0) {
+ p = &rpl.u.exact[0];
+ ret = FW_VI_MAC_CMD_IDX_GET(be16_to_cpu(p->valid_to_idx));
+ if (ret >= FW_CLS_TCAM_NUM_ENTRIES)
+ ret = -ENOMEM;
+ }
+ return ret;
+}
+
+/**
+ * t4vf_set_addr_hash - program the MAC inexact-match hash filter
+ * @adapter: the adapter
+ * @viid: the Virtual Interface Identifier
+ * @ucast: whether the hash filter should also match unicast addresses
+ * @vec: the value to be written to the hash filter
+ * @sleep_ok: call is allowed to sleep
+ *
+ * Sets the 64-bit inexact-match hash filter for a virtual interface.
+ */
+int t4vf_set_addr_hash(struct adapter *adapter, unsigned int viid,
+ bool ucast, u64 vec, bool sleep_ok)
+{
+ struct fw_vi_mac_cmd cmd;
+ size_t len16 = DIV_ROUND_UP(offsetof(struct fw_vi_mac_cmd,
+ u.exact[0]), 16);
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_MAC_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_WRITE |
+ FW_VI_ENABLE_CMD_VIID(viid));
+ cmd.freemacs_to_len16 = cpu_to_be32(FW_VI_MAC_CMD_HASHVECEN |
+ FW_VI_MAC_CMD_HASHUNIEN(ucast) |
+ FW_CMD_LEN16(len16));
+ cmd.u.hash.hashvec = cpu_to_be64(vec);
+ return t4vf_wr_mbox_core(adapter, &cmd, sizeof(cmd), NULL, sleep_ok);
+}
+
+/**
+ * t4vf_get_port_stats - collect "port" statistics
+ * @adapter: the adapter
+ * @pidx: the port index
+ * @s: the stats structure to fill
+ *
+ * Collect statistics for the "port"'s Virtual Interface.
+ */
+int t4vf_get_port_stats(struct adapter *adapter, int pidx,
+ struct t4vf_port_stats *s)
+{
+ struct port_info *pi = adap2pinfo(adapter, pidx);
+ struct fw_vi_stats_vf fwstats;
+ unsigned int rem = VI_VF_NUM_STATS;
+ __be64 *fwsp = (__be64 *)&fwstats;
+
+ /*
+ * Grab the Virtual Interface statistics a chunk at a time via mailbox
+ * commands. We could use a Work Request and get all of them at once
+ * but that's an asynchronous interface which is awkward to use.
+ */
+ while (rem) {
+ unsigned int ix = VI_VF_NUM_STATS - rem;
+ unsigned int nstats = min(6U, rem);
+ struct fw_vi_stats_cmd cmd, rpl;
+ size_t len = (offsetof(struct fw_vi_stats_cmd, u) +
+ sizeof(struct fw_vi_stats_ctl));
+ size_t len16 = DIV_ROUND_UP(len, 16);
+ int ret;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_viid = cpu_to_be32(FW_CMD_OP(FW_VI_STATS_CMD) |
+ FW_VI_STATS_CMD_VIID(pi->viid) |
+ FW_CMD_REQUEST |
+ FW_CMD_READ);
+ cmd.retval_len16 = cpu_to_be32(FW_CMD_LEN16(len16));
+ cmd.u.ctl.nstats_ix =
+ cpu_to_be16(FW_VI_STATS_CMD_IX(ix) |
+ FW_VI_STATS_CMD_NSTATS(nstats));
+ ret = t4vf_wr_mbox_ns(adapter, &cmd, len, &rpl);
+ if (ret)
+ return ret;
+
+ memcpy(fwsp, &rpl.u.ctl.stat0, sizeof(__be64) * nstats);
+
+ rem -= nstats;
+ fwsp += nstats;
+ }
+
+ /*
+ * Translate firmware statistics into host native statistics.
+ */
+ s->tx_bcast_bytes = be64_to_cpu(fwstats.tx_bcast_bytes);
+ s->tx_bcast_frames = be64_to_cpu(fwstats.tx_bcast_frames);
+ s->tx_mcast_bytes = be64_to_cpu(fwstats.tx_mcast_bytes);
+ s->tx_mcast_frames = be64_to_cpu(fwstats.tx_mcast_frames);
+ s->tx_ucast_bytes = be64_to_cpu(fwstats.tx_ucast_bytes);
+ s->tx_ucast_frames = be64_to_cpu(fwstats.tx_ucast_frames);
+ s->tx_drop_frames = be64_to_cpu(fwstats.tx_drop_frames);
+ s->tx_offload_bytes = be64_to_cpu(fwstats.tx_offload_bytes);
+ s->tx_offload_frames = be64_to_cpu(fwstats.tx_offload_frames);
+
+ s->rx_bcast_bytes = be64_to_cpu(fwstats.rx_bcast_bytes);
+ s->rx_bcast_frames = be64_to_cpu(fwstats.rx_bcast_frames);
+ s->rx_mcast_bytes = be64_to_cpu(fwstats.rx_mcast_bytes);
+ s->rx_mcast_frames = be64_to_cpu(fwstats.rx_mcast_frames);
+ s->rx_ucast_bytes = be64_to_cpu(fwstats.rx_ucast_bytes);
+ s->rx_ucast_frames = be64_to_cpu(fwstats.rx_ucast_frames);
+
+ s->rx_err_frames = be64_to_cpu(fwstats.rx_err_frames);
+
+ return 0;
+}
+
+/**
+ * t4vf_iq_free - free an ingress queue and its free lists
+ * @adapter: the adapter
+ * @iqtype: the ingress queue type (FW_IQ_TYPE_FL_INT_CAP, etc.)
+ * @iqid: ingress queue ID
+ * @fl0id: FL0 queue ID or 0xffff if no attached FL0
+ * @fl1id: FL1 queue ID or 0xffff if no attached FL1
+ *
+ * Frees an ingress queue and its associated free lists, if any.
+ */
+int t4vf_iq_free(struct adapter *adapter, unsigned int iqtype,
+ unsigned int iqid, unsigned int fl0id, unsigned int fl1id)
+{
+ struct fw_iq_cmd cmd;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_IQ_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_EXEC);
+ cmd.alloc_to_len16 = cpu_to_be32(FW_IQ_CMD_FREE |
+ FW_LEN16(cmd));
+ cmd.type_to_iqandstindex =
+ cpu_to_be32(FW_IQ_CMD_TYPE(iqtype));
+
+ cmd.iqid = cpu_to_be16(iqid);
+ cmd.fl0id = cpu_to_be16(fl0id);
+ cmd.fl1id = cpu_to_be16(fl1id);
+ return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
+}
+
+/**
+ * t4vf_eth_eq_free - free an Ethernet egress queue
+ * @adapter: the adapter
+ * @eqid: egress queue ID
+ *
+ * Frees an Ethernet egress queue.
+ */
+int t4vf_eth_eq_free(struct adapter *adapter, unsigned int eqid)
+{
+ struct fw_eq_eth_cmd cmd;
+
+ memset(&cmd, 0, sizeof(cmd));
+ cmd.op_to_vfn = cpu_to_be32(FW_CMD_OP(FW_EQ_ETH_CMD) |
+ FW_CMD_REQUEST |
+ FW_CMD_EXEC);
+ cmd.alloc_to_len16 = cpu_to_be32(FW_EQ_ETH_CMD_FREE |
+ FW_LEN16(cmd));
+ cmd.eqid_pkd = cpu_to_be32(FW_EQ_ETH_CMD_EQID(eqid));
+ return t4vf_wr_mbox(adapter, &cmd, sizeof(cmd), NULL);
+}
+
+/**
+ * t4vf_handle_fw_rpl - process a firmware reply message
+ * @adapter: the adapter
+ * @rpl: start of the firmware message
+ *
+ * Processes a firmware message, such as link state change messages.
+ */
+int t4vf_handle_fw_rpl(struct adapter *adapter, const __be64 *rpl)
+{
+ struct fw_cmd_hdr *cmd_hdr = (struct fw_cmd_hdr *)rpl;
+ u8 opcode = FW_CMD_OP_GET(be32_to_cpu(cmd_hdr->hi));
+
+ switch (opcode) {
+ case FW_PORT_CMD: {
+ /*
+ * Link/module state change message.
+ */
+ const struct fw_port_cmd *port_cmd = (void *)rpl;
+ u32 word;
+ int action, port_id, link_ok, speed, fc, pidx;
+
+ /*
+ * Extract various fields from port status change message.
+ */
+ action = FW_PORT_CMD_ACTION_GET(
+ be32_to_cpu(port_cmd->action_to_len16));
+ if (action != FW_PORT_ACTION_GET_PORT_INFO) {
+ dev_err(adapter->pdev_dev,
+ "Unknown firmware PORT reply action %x\n",
+ action);
+ break;
+ }
+
+ port_id = FW_PORT_CMD_PORTID_GET(
+ be32_to_cpu(port_cmd->op_to_portid));
+
+ word = be32_to_cpu(port_cmd->u.info.lstatus_to_modtype);
+ link_ok = (word & FW_PORT_CMD_LSTATUS) != 0;
+ speed = 0;
+ fc = 0;
+ if (word & FW_PORT_CMD_RXPAUSE)
+ fc |= PAUSE_RX;
+ if (word & FW_PORT_CMD_TXPAUSE)
+ fc |= PAUSE_TX;
+ if (word & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_100M))
+ speed = SPEED_100;
+ else if (word & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_1G))
+ speed = SPEED_1000;
+ else if (word & FW_PORT_CMD_LSPEED(FW_PORT_CAP_SPEED_10G))
+ speed = SPEED_10000;
+
+ /*
+ * Scan all of our "ports" (Virtual Interfaces) looking for
+ * those bound to the physical port which has changed. If
+ * our recorded state doesn't match the current state,
+ * signal that change to the OS code.
+ */
+ for_each_port(adapter, pidx) {
+ struct port_info *pi = adap2pinfo(adapter, pidx);
+ struct link_config *lc;
+
+ if (pi->port_id != port_id)
+ continue;
+
+ lc = &pi->link_cfg;
+ if (link_ok != lc->link_ok || speed != lc->speed ||
+ fc != lc->fc) {
+ /* something changed */
+ lc->link_ok = link_ok;
+ lc->speed = speed;
+ lc->fc = fc;
+ t4vf_os_link_changed(adapter, pidx, link_ok);
+ }
+ }
+ break;
+ }
+
+ default:
+ dev_err(adapter->pdev_dev, "Unknown firmware reply %X\n",
+ opcode);
+ }
+ return 0;
+}
--
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