1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * QLogic qlcnic NIC Driver
   4 * Copyright (c) 2009-2013 QLogic Corporation
   5 */
   6
   7#include <linux/if_vlan.h>
   8#include <linux/ipv6.h>
   9#include <linux/ethtool.h>
  10#include <linux/interrupt.h>
 
  11
  12#include "qlcnic.h"
  13#include "qlcnic_sriov.h"
  14
  15static void __qlcnic_83xx_process_aen(struct qlcnic_adapter *);
  16static int qlcnic_83xx_clear_lb_mode(struct qlcnic_adapter *, u8);
  17static void qlcnic_83xx_configure_mac(struct qlcnic_adapter *, u8 *, u8,
  18				      struct qlcnic_cmd_args *);
  19static int qlcnic_83xx_get_port_config(struct qlcnic_adapter *);
  20static irqreturn_t qlcnic_83xx_handle_aen(int, void *);
  21static pci_ers_result_t qlcnic_83xx_io_error_detected(struct pci_dev *,
  22						      pci_channel_state_t);
  23static int qlcnic_83xx_set_port_config(struct qlcnic_adapter *);
  24static pci_ers_result_t qlcnic_83xx_io_slot_reset(struct pci_dev *);
  25static void qlcnic_83xx_io_resume(struct pci_dev *);
  26static int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *, u8);
  27static void qlcnic_83xx_set_mac_filter_count(struct qlcnic_adapter *);
  28static int qlcnic_83xx_resume(struct qlcnic_adapter *);
  29static int qlcnic_83xx_shutdown(struct pci_dev *);
  30static void qlcnic_83xx_get_beacon_state(struct qlcnic_adapter *);
  31
  32#define RSS_HASHTYPE_IP_TCP		0x3
  33#define QLC_83XX_FW_MBX_CMD		0
  34#define QLC_SKIP_INACTIVE_PCI_REGS	7
  35#define QLC_MAX_LEGACY_FUNC_SUPP	8
  36
  37/* 83xx Module type */
  38#define QLC_83XX_MODULE_FIBRE_10GBASE_LRM	0x1 /* 10GBase-LRM */
  39#define QLC_83XX_MODULE_FIBRE_10GBASE_LR	0x2 /* 10GBase-LR */
  40#define QLC_83XX_MODULE_FIBRE_10GBASE_SR	0x3 /* 10GBase-SR */
  41#define QLC_83XX_MODULE_DA_10GE_PASSIVE_CP	0x4 /* 10GE passive
  42						     * copper(compliant)
  43						     */
  44#define QLC_83XX_MODULE_DA_10GE_ACTIVE_CP	0x5 /* 10GE active limiting
  45						     * copper(compliant)
  46						     */
  47#define QLC_83XX_MODULE_DA_10GE_LEGACY_CP	0x6 /* 10GE passive copper
  48						     * (legacy, best effort)
  49						     */
  50#define QLC_83XX_MODULE_FIBRE_1000BASE_SX	0x7 /* 1000Base-SX */
  51#define QLC_83XX_MODULE_FIBRE_1000BASE_LX	0x8 /* 1000Base-LX */
  52#define QLC_83XX_MODULE_FIBRE_1000BASE_CX	0x9 /* 1000Base-CX */
  53#define QLC_83XX_MODULE_TP_1000BASE_T		0xa /* 1000Base-T*/
  54#define QLC_83XX_MODULE_DA_1GE_PASSIVE_CP	0xb /* 1GE passive copper
  55						     * (legacy, best effort)
  56						     */
  57#define QLC_83XX_MODULE_UNKNOWN			0xf /* Unknown module type */
  58
  59/* Port types */
  60#define QLC_83XX_10_CAPABLE	 BIT_8
  61#define QLC_83XX_100_CAPABLE	 BIT_9
  62#define QLC_83XX_1G_CAPABLE	 BIT_10
  63#define QLC_83XX_10G_CAPABLE	 BIT_11
  64#define QLC_83XX_AUTONEG_ENABLE	 BIT_15
  65
  66static const struct qlcnic_mailbox_metadata qlcnic_83xx_mbx_tbl[] = {
  67	{QLCNIC_CMD_CONFIGURE_IP_ADDR, 6, 1},
  68	{QLCNIC_CMD_CONFIG_INTRPT, 18, 34},
  69	{QLCNIC_CMD_CREATE_RX_CTX, 136, 27},
  70	{QLCNIC_CMD_DESTROY_RX_CTX, 2, 1},
  71	{QLCNIC_CMD_CREATE_TX_CTX, 54, 18},
  72	{QLCNIC_CMD_DESTROY_TX_CTX, 2, 1},
  73	{QLCNIC_CMD_CONFIGURE_MAC_LEARNING, 2, 1},
  74	{QLCNIC_CMD_INTRPT_TEST, 22, 12},
  75	{QLCNIC_CMD_SET_MTU, 3, 1},
  76	{QLCNIC_CMD_READ_PHY, 4, 2},
  77	{QLCNIC_CMD_WRITE_PHY, 5, 1},
  78	{QLCNIC_CMD_READ_HW_REG, 4, 1},
  79	{QLCNIC_CMD_GET_FLOW_CTL, 4, 2},
  80	{QLCNIC_CMD_SET_FLOW_CTL, 4, 1},
  81	{QLCNIC_CMD_READ_MAX_MTU, 4, 2},
  82	{QLCNIC_CMD_READ_MAX_LRO, 4, 2},
  83	{QLCNIC_CMD_MAC_ADDRESS, 4, 3},
  84	{QLCNIC_CMD_GET_PCI_INFO, 1, 129},
  85	{QLCNIC_CMD_GET_NIC_INFO, 2, 19},
  86	{QLCNIC_CMD_SET_NIC_INFO, 32, 1},
  87	{QLCNIC_CMD_GET_ESWITCH_CAPABILITY, 4, 3},
  88	{QLCNIC_CMD_TOGGLE_ESWITCH, 4, 1},
  89	{QLCNIC_CMD_GET_ESWITCH_STATUS, 4, 3},
  90	{QLCNIC_CMD_SET_PORTMIRRORING, 4, 1},
  91	{QLCNIC_CMD_CONFIGURE_ESWITCH, 4, 1},
  92	{QLCNIC_CMD_GET_ESWITCH_PORT_CONFIG, 4, 3},
  93	{QLCNIC_CMD_GET_ESWITCH_STATS, 5, 1},
  94	{QLCNIC_CMD_CONFIG_PORT, 4, 1},
  95	{QLCNIC_CMD_TEMP_SIZE, 1, 4},
  96	{QLCNIC_CMD_GET_TEMP_HDR, 5, 5},
  97	{QLCNIC_CMD_GET_LINK_EVENT, 2, 1},
  98	{QLCNIC_CMD_CONFIG_MAC_VLAN, 4, 3},
  99	{QLCNIC_CMD_CONFIG_INTR_COAL, 6, 1},
 100	{QLCNIC_CMD_CONFIGURE_RSS, 14, 1},
 101	{QLCNIC_CMD_CONFIGURE_LED, 2, 1},
 102	{QLCNIC_CMD_CONFIGURE_MAC_RX_MODE, 2, 1},
 103	{QLCNIC_CMD_CONFIGURE_HW_LRO, 2, 1},
 104	{QLCNIC_CMD_GET_STATISTICS, 2, 80},
 105	{QLCNIC_CMD_SET_PORT_CONFIG, 2, 1},
 106	{QLCNIC_CMD_GET_PORT_CONFIG, 2, 2},
 107	{QLCNIC_CMD_GET_LINK_STATUS, 2, 4},
 108	{QLCNIC_CMD_IDC_ACK, 5, 1},
 109	{QLCNIC_CMD_INIT_NIC_FUNC, 3, 1},
 110	{QLCNIC_CMD_STOP_NIC_FUNC, 2, 1},
 111	{QLCNIC_CMD_SET_LED_CONFIG, 5, 1},
 112	{QLCNIC_CMD_GET_LED_CONFIG, 1, 5},
 113	{QLCNIC_CMD_83XX_SET_DRV_VER, 4, 1},
 114	{QLCNIC_CMD_ADD_RCV_RINGS, 130, 26},
 115	{QLCNIC_CMD_CONFIG_VPORT, 4, 4},
 116	{QLCNIC_CMD_BC_EVENT_SETUP, 2, 1},
 117	{QLCNIC_CMD_DCB_QUERY_CAP, 1, 2},
 118	{QLCNIC_CMD_DCB_QUERY_PARAM, 1, 50},
 119	{QLCNIC_CMD_SET_INGRESS_ENCAP, 2, 1},
 120	{QLCNIC_CMD_83XX_EXTEND_ISCSI_DUMP_CAP, 4, 1},
 121};
 122
 123const u32 qlcnic_83xx_ext_reg_tbl[] = {
 124	0x38CC,		/* Global Reset */
 125	0x38F0,		/* Wildcard */
 126	0x38FC,		/* Informant */
 127	0x3038,		/* Host MBX ctrl */
 128	0x303C,		/* FW MBX ctrl */
 129	0x355C,		/* BOOT LOADER ADDRESS REG */
 130	0x3560,		/* BOOT LOADER SIZE REG */
 131	0x3564,		/* FW IMAGE ADDR REG */
 132	0x1000,		/* MBX intr enable */
 133	0x1200,		/* Default Intr mask */
 134	0x1204,		/* Default Interrupt ID */
 135	0x3780,		/* QLC_83XX_IDC_MAJ_VERSION */
 136	0x3784,		/* QLC_83XX_IDC_DEV_STATE */
 137	0x3788,		/* QLC_83XX_IDC_DRV_PRESENCE */
 138	0x378C,		/* QLC_83XX_IDC_DRV_ACK */
 139	0x3790,		/* QLC_83XX_IDC_CTRL */
 140	0x3794,		/* QLC_83XX_IDC_DRV_AUDIT */
 141	0x3798,		/* QLC_83XX_IDC_MIN_VERSION */
 142	0x379C,		/* QLC_83XX_RECOVER_DRV_LOCK */
 143	0x37A0,		/* QLC_83XX_IDC_PF_0 */
 144	0x37A4,		/* QLC_83XX_IDC_PF_1 */
 145	0x37A8,		/* QLC_83XX_IDC_PF_2 */
 146	0x37AC,		/* QLC_83XX_IDC_PF_3 */
 147	0x37B0,		/* QLC_83XX_IDC_PF_4 */
 148	0x37B4,		/* QLC_83XX_IDC_PF_5 */
 149	0x37B8,		/* QLC_83XX_IDC_PF_6 */
 150	0x37BC,		/* QLC_83XX_IDC_PF_7 */
 151	0x37C0,		/* QLC_83XX_IDC_PF_8 */
 152	0x37C4,		/* QLC_83XX_IDC_PF_9 */
 153	0x37C8,		/* QLC_83XX_IDC_PF_10 */
 154	0x37CC,		/* QLC_83XX_IDC_PF_11 */
 155	0x37D0,		/* QLC_83XX_IDC_PF_12 */
 156	0x37D4,		/* QLC_83XX_IDC_PF_13 */
 157	0x37D8,		/* QLC_83XX_IDC_PF_14 */
 158	0x37DC,		/* QLC_83XX_IDC_PF_15 */
 159	0x37E0,		/* QLC_83XX_IDC_DEV_PARTITION_INFO_1 */
 160	0x37E4,		/* QLC_83XX_IDC_DEV_PARTITION_INFO_2 */
 161	0x37F0,		/* QLC_83XX_DRV_OP_MODE */
 162	0x37F4,		/* QLC_83XX_VNIC_STATE */
 163	0x3868,		/* QLC_83XX_DRV_LOCK */
 164	0x386C,		/* QLC_83XX_DRV_UNLOCK */
 165	0x3504,		/* QLC_83XX_DRV_LOCK_ID */
 166	0x34A4,		/* QLC_83XX_ASIC_TEMP */
 167};
 168
 169const u32 qlcnic_83xx_reg_tbl[] = {
 170	0x34A8,		/* PEG_HALT_STAT1 */
 171	0x34AC,		/* PEG_HALT_STAT2 */
 172	0x34B0,		/* FW_HEARTBEAT */
 173	0x3500,		/* FLASH LOCK_ID */
 174	0x3528,		/* FW_CAPABILITIES */
 175	0x3538,		/* Driver active, DRV_REG0 */
 176	0x3540,		/* Device state, DRV_REG1 */
 177	0x3544,		/* Driver state, DRV_REG2 */
 178	0x3548,		/* Driver scratch, DRV_REG3 */
 179	0x354C,		/* Device partition info, DRV_REG4 */
 180	0x3524,		/* Driver IDC ver, DRV_REG5 */
 181	0x3550,		/* FW_VER_MAJOR */
 182	0x3554,		/* FW_VER_MINOR */
 183	0x3558,		/* FW_VER_SUB */
 184	0x359C,		/* NPAR STATE */
 185	0x35FC,		/* FW_IMG_VALID */
 186	0x3650,		/* CMD_PEG_STATE */
 187	0x373C,		/* RCV_PEG_STATE */
 188	0x37B4,		/* ASIC TEMP */
 189	0x356C,		/* FW API */
 190	0x3570,		/* DRV OP MODE */
 191	0x3850,		/* FLASH LOCK */
 192	0x3854,		/* FLASH UNLOCK */
 193};
 194
 195static struct qlcnic_hardware_ops qlcnic_83xx_hw_ops = {
 196	.read_crb			= qlcnic_83xx_read_crb,
 197	.write_crb			= qlcnic_83xx_write_crb,
 198	.read_reg			= qlcnic_83xx_rd_reg_indirect,
 199	.write_reg			= qlcnic_83xx_wrt_reg_indirect,
 200	.get_mac_address		= qlcnic_83xx_get_mac_address,
 201	.setup_intr			= qlcnic_83xx_setup_intr,
 202	.alloc_mbx_args			= qlcnic_83xx_alloc_mbx_args,
 203	.mbx_cmd			= qlcnic_83xx_issue_cmd,
 204	.get_func_no			= qlcnic_83xx_get_func_no,
 205	.api_lock			= qlcnic_83xx_cam_lock,
 206	.api_unlock			= qlcnic_83xx_cam_unlock,
 207	.add_sysfs			= qlcnic_83xx_add_sysfs,
 208	.remove_sysfs			= qlcnic_83xx_remove_sysfs,
 209	.process_lb_rcv_ring_diag	= qlcnic_83xx_process_rcv_ring_diag,
 210	.create_rx_ctx			= qlcnic_83xx_create_rx_ctx,
 211	.create_tx_ctx			= qlcnic_83xx_create_tx_ctx,
 212	.del_rx_ctx			= qlcnic_83xx_del_rx_ctx,
 213	.del_tx_ctx			= qlcnic_83xx_del_tx_ctx,
 214	.setup_link_event		= qlcnic_83xx_setup_link_event,
 215	.get_nic_info			= qlcnic_83xx_get_nic_info,
 216	.get_pci_info			= qlcnic_83xx_get_pci_info,
 217	.set_nic_info			= qlcnic_83xx_set_nic_info,
 218	.change_macvlan			= qlcnic_83xx_sre_macaddr_change,
 219	.napi_enable			= qlcnic_83xx_napi_enable,
 220	.napi_disable			= qlcnic_83xx_napi_disable,
 221	.config_intr_coal		= qlcnic_83xx_config_intr_coal,
 222	.config_rss			= qlcnic_83xx_config_rss,
 223	.config_hw_lro			= qlcnic_83xx_config_hw_lro,
 224	.config_promisc_mode		= qlcnic_83xx_nic_set_promisc,
 225	.change_l2_filter		= qlcnic_83xx_change_l2_filter,
 226	.get_board_info			= qlcnic_83xx_get_port_info,
 227	.set_mac_filter_count		= qlcnic_83xx_set_mac_filter_count,
 228	.free_mac_list			= qlcnic_82xx_free_mac_list,
 229	.io_error_detected		= qlcnic_83xx_io_error_detected,
 230	.io_slot_reset			= qlcnic_83xx_io_slot_reset,
 231	.io_resume			= qlcnic_83xx_io_resume,
 232	.get_beacon_state		= qlcnic_83xx_get_beacon_state,
 233	.enable_sds_intr		= qlcnic_83xx_enable_sds_intr,
 234	.disable_sds_intr		= qlcnic_83xx_disable_sds_intr,
 235	.enable_tx_intr			= qlcnic_83xx_enable_tx_intr,
 236	.disable_tx_intr		= qlcnic_83xx_disable_tx_intr,
 237	.get_saved_state		= qlcnic_83xx_get_saved_state,
 238	.set_saved_state		= qlcnic_83xx_set_saved_state,
 239	.cache_tmpl_hdr_values		= qlcnic_83xx_cache_tmpl_hdr_values,
 240	.get_cap_size			= qlcnic_83xx_get_cap_size,
 241	.set_sys_info			= qlcnic_83xx_set_sys_info,
 242	.store_cap_mask			= qlcnic_83xx_store_cap_mask,
 243	.encap_rx_offload		= qlcnic_83xx_encap_rx_offload,
 244	.encap_tx_offload		= qlcnic_83xx_encap_tx_offload,
 245};
 246
 247static struct qlcnic_nic_template qlcnic_83xx_ops = {
 248	.config_bridged_mode	= qlcnic_config_bridged_mode,
 249	.config_led		= qlcnic_config_led,
 250	.request_reset          = qlcnic_83xx_idc_request_reset,
 251	.cancel_idc_work        = qlcnic_83xx_idc_exit,
 252	.napi_add		= qlcnic_83xx_napi_add,
 253	.napi_del		= qlcnic_83xx_napi_del,
 254	.config_ipaddr		= qlcnic_83xx_config_ipaddr,
 255	.clear_legacy_intr	= qlcnic_83xx_clear_legacy_intr,
 256	.shutdown		= qlcnic_83xx_shutdown,
 257	.resume			= qlcnic_83xx_resume,
 258};
 259
 260void qlcnic_83xx_register_map(struct qlcnic_hardware_context *ahw)
 261{
 262	ahw->hw_ops		= &qlcnic_83xx_hw_ops;
 263	ahw->reg_tbl		= (u32 *)qlcnic_83xx_reg_tbl;
 264	ahw->ext_reg_tbl	= (u32 *)qlcnic_83xx_ext_reg_tbl;
 265}
 266
 267int qlcnic_83xx_get_fw_version(struct qlcnic_adapter *adapter)
 268{
 269	u32 fw_major, fw_minor, fw_build;
 270	struct pci_dev *pdev = adapter->pdev;
 271
 272	fw_major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
 273	fw_minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
 274	fw_build = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
 275	adapter->fw_version = QLCNIC_VERSION_CODE(fw_major, fw_minor, fw_build);
 276
 277	dev_info(&pdev->dev, "Driver v%s, firmware version %d.%d.%d\n",
 278		 QLCNIC_LINUX_VERSIONID, fw_major, fw_minor, fw_build);
 279
 280	return adapter->fw_version;
 281}
 282
 283static int __qlcnic_set_win_base(struct qlcnic_adapter *adapter, u32 addr)
 284{
 285	void __iomem *base;
 286	u32 val;
 287
 288	base = adapter->ahw->pci_base0 +
 289	       QLC_83XX_CRB_WIN_FUNC(adapter->ahw->pci_func);
 290	writel(addr, base);
 291	val = readl(base);
 292	if (val != addr)
 293		return -EIO;
 294
 295	return 0;
 296}
 297
 298int qlcnic_83xx_rd_reg_indirect(struct qlcnic_adapter *adapter, ulong addr,
 299				int *err)
 300{
 301	struct qlcnic_hardware_context *ahw = adapter->ahw;
 302
 303	*err = __qlcnic_set_win_base(adapter, (u32) addr);
 304	if (!*err) {
 305		return QLCRDX(ahw, QLCNIC_WILDCARD);
 306	} else {
 307		dev_err(&adapter->pdev->dev,
 308			"%s failed, addr = 0x%lx\n", __func__, addr);
 309		return -EIO;
 310	}
 311}
 312
 313int qlcnic_83xx_wrt_reg_indirect(struct qlcnic_adapter *adapter, ulong addr,
 314				 u32 data)
 315{
 316	int err;
 317	struct qlcnic_hardware_context *ahw = adapter->ahw;
 318
 319	err = __qlcnic_set_win_base(adapter, (u32) addr);
 320	if (!err) {
 321		QLCWRX(ahw, QLCNIC_WILDCARD, data);
 322		return 0;
 323	} else {
 324		dev_err(&adapter->pdev->dev,
 325			"%s failed, addr = 0x%x data = 0x%x\n",
 326			__func__, (int)addr, data);
 327		return err;
 328	}
 329}
 330
 331static void qlcnic_83xx_enable_legacy(struct qlcnic_adapter *adapter)
 332{
 333	struct qlcnic_hardware_context *ahw = adapter->ahw;
 334
 335	/* MSI-X enablement failed, use legacy interrupt */
 336	adapter->tgt_status_reg = ahw->pci_base0 + QLC_83XX_INTX_PTR;
 337	adapter->tgt_mask_reg = ahw->pci_base0 + QLC_83XX_INTX_MASK;
 338	adapter->isr_int_vec = ahw->pci_base0 + QLC_83XX_INTX_TRGR;
 339	adapter->msix_entries[0].vector = adapter->pdev->irq;
 340	dev_info(&adapter->pdev->dev, "using legacy interrupt\n");
 341}
 342
 343static int qlcnic_83xx_calculate_msix_vector(struct qlcnic_adapter *adapter)
 344{
 345	int num_msix;
 346
 347	num_msix = adapter->drv_sds_rings;
 348
 349	/* account for AEN interrupt MSI-X based interrupts */
 350	num_msix += 1;
 351
 352	if (!(adapter->flags & QLCNIC_TX_INTR_SHARED))
 353		num_msix += adapter->drv_tx_rings;
 354
 355	return num_msix;
 356}
 357
 358int qlcnic_83xx_setup_intr(struct qlcnic_adapter *adapter)
 359{
 360	struct qlcnic_hardware_context *ahw = adapter->ahw;
 361	int err, i, num_msix;
 362
 363	if (adapter->flags & QLCNIC_TSS_RSS) {
 364		err = qlcnic_setup_tss_rss_intr(adapter);
 365		if (err < 0)
 366			return err;
 367		num_msix = ahw->num_msix;
 368	} else {
 369		num_msix = qlcnic_83xx_calculate_msix_vector(adapter);
 370
 371		err = qlcnic_enable_msix(adapter, num_msix);
 372		if (err == -ENOMEM)
 373			return err;
 374
 375		if (adapter->flags & QLCNIC_MSIX_ENABLED) {
 376			num_msix = ahw->num_msix;
 377		} else {
 378			if (qlcnic_sriov_vf_check(adapter))
 379				return -EINVAL;
 380			num_msix = 1;
 381			adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
 382			adapter->drv_tx_rings = QLCNIC_SINGLE_RING;
 383		}
 384	}
 385
 386	/* setup interrupt mapping table for fw */
 387	ahw->intr_tbl =
 388		vzalloc(array_size(num_msix,
 389				   sizeof(struct qlcnic_intrpt_config)));
 390	if (!ahw->intr_tbl)
 391		return -ENOMEM;
 392
 393	if (!(adapter->flags & QLCNIC_MSIX_ENABLED)) {
 394		if (adapter->ahw->pci_func >= QLC_MAX_LEGACY_FUNC_SUPP) {
 395			dev_err(&adapter->pdev->dev, "PCI function number 8 and higher are not supported with legacy interrupt, func 0x%x\n",
 396				ahw->pci_func);
 397			return -EOPNOTSUPP;
 398		}
 399
 400		qlcnic_83xx_enable_legacy(adapter);
 401	}
 402
 403	for (i = 0; i < num_msix; i++) {
 404		if (adapter->flags & QLCNIC_MSIX_ENABLED)
 405			ahw->intr_tbl[i].type = QLCNIC_INTRPT_MSIX;
 406		else
 407			ahw->intr_tbl[i].type = QLCNIC_INTRPT_INTX;
 408		ahw->intr_tbl[i].id = i;
 409		ahw->intr_tbl[i].src = 0;
 410	}
 411
 412	return 0;
 413}
 414
 415static inline void qlcnic_83xx_clear_legacy_intr_mask(struct qlcnic_adapter *adapter)
 416{
 417	writel(0, adapter->tgt_mask_reg);
 418}
 419
 420static inline void qlcnic_83xx_set_legacy_intr_mask(struct qlcnic_adapter *adapter)
 421{
 422	if (adapter->tgt_mask_reg)
 423		writel(1, adapter->tgt_mask_reg);
 424}
 425
 426static inline void qlcnic_83xx_enable_legacy_msix_mbx_intr(struct qlcnic_adapter
 427						    *adapter)
 428{
 429	u32 mask;
 430
 431	/* Mailbox in MSI-x mode and Legacy Interrupt share the same
 432	 * source register. We could be here before contexts are created
 433	 * and sds_ring->crb_intr_mask has not been initialized, calculate
 434	 * BAR offset for Interrupt Source Register
 435	 */
 436	mask = QLCRDX(adapter->ahw, QLCNIC_DEF_INT_MASK);
 437	writel(0, adapter->ahw->pci_base0 + mask);
 438}
 439
 440void qlcnic_83xx_disable_mbx_intr(struct qlcnic_adapter *adapter)
 441{
 442	u32 mask;
 443
 444	mask = QLCRDX(adapter->ahw, QLCNIC_DEF_INT_MASK);
 445	writel(1, adapter->ahw->pci_base0 + mask);
 446	QLCWRX(adapter->ahw, QLCNIC_MBX_INTR_ENBL, 0);
 447}
 448
 449static inline void qlcnic_83xx_get_mbx_data(struct qlcnic_adapter *adapter,
 450				     struct qlcnic_cmd_args *cmd)
 451{
 452	int i;
 453
 454	if (cmd->op_type == QLC_83XX_MBX_POST_BC_OP)
 455		return;
 456
 457	for (i = 0; i < cmd->rsp.num; i++)
 458		cmd->rsp.arg[i] = readl(QLCNIC_MBX_FW(adapter->ahw, i));
 459}
 460
 461irqreturn_t qlcnic_83xx_clear_legacy_intr(struct qlcnic_adapter *adapter)
 462{
 463	u32 intr_val;
 464	struct qlcnic_hardware_context *ahw = adapter->ahw;
 465	int retries = 0;
 466
 467	intr_val = readl(adapter->tgt_status_reg);
 468
 469	if (!QLC_83XX_VALID_INTX_BIT31(intr_val))
 470		return IRQ_NONE;
 471
 472	if (QLC_83XX_INTX_FUNC(intr_val) != adapter->ahw->pci_func) {
 473		adapter->stats.spurious_intr++;
 474		return IRQ_NONE;
 475	}
 476	/* The barrier is required to ensure writes to the registers */
 477	wmb();
 478
 479	/* clear the interrupt trigger control register */
 480	writel_relaxed(0, adapter->isr_int_vec);
 481	intr_val = readl(adapter->isr_int_vec);
 482	do {
 483		intr_val = readl(adapter->tgt_status_reg);
 484		if (QLC_83XX_INTX_FUNC(intr_val) != ahw->pci_func)
 485			break;
 486		retries++;
 487	} while (QLC_83XX_VALID_INTX_BIT30(intr_val) &&
 488		 (retries < QLC_83XX_LEGACY_INTX_MAX_RETRY));
 489
 490	return IRQ_HANDLED;
 491}
 492
 493static inline void qlcnic_83xx_notify_mbx_response(struct qlcnic_mailbox *mbx)
 494{
 495	mbx->rsp_status = QLC_83XX_MBX_RESPONSE_ARRIVED;
 496	complete(&mbx->completion);
 497}
 498
 499static void qlcnic_83xx_poll_process_aen(struct qlcnic_adapter *adapter)
 500{
 501	u32 resp, event, rsp_status = QLC_83XX_MBX_RESPONSE_ARRIVED;
 502	struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
 503	unsigned long flags;
 504
 505	spin_lock_irqsave(&mbx->aen_lock, flags);
 506	resp = QLCRDX(adapter->ahw, QLCNIC_FW_MBX_CTRL);
 507	if (!(resp & QLCNIC_SET_OWNER))
 508		goto out;
 509
 510	event = readl(QLCNIC_MBX_FW(adapter->ahw, 0));
 511	if (event &  QLCNIC_MBX_ASYNC_EVENT) {
 512		__qlcnic_83xx_process_aen(adapter);
 513	} else {
 514		if (mbx->rsp_status != rsp_status)
 515			qlcnic_83xx_notify_mbx_response(mbx);
 516	}
 517out:
 518	qlcnic_83xx_enable_legacy_msix_mbx_intr(adapter);
 519	spin_unlock_irqrestore(&mbx->aen_lock, flags);
 520}
 521
 522irqreturn_t qlcnic_83xx_intr(int irq, void *data)
 523{
 524	struct qlcnic_adapter *adapter = data;
 525	struct qlcnic_host_sds_ring *sds_ring;
 526	struct qlcnic_hardware_context *ahw = adapter->ahw;
 527
 528	if (qlcnic_83xx_clear_legacy_intr(adapter) == IRQ_NONE)
 529		return IRQ_NONE;
 530
 531	qlcnic_83xx_poll_process_aen(adapter);
 532
 533	if (ahw->diag_test) {
 534		if (ahw->diag_test == QLCNIC_INTERRUPT_TEST)
 535			ahw->diag_cnt++;
 536		qlcnic_83xx_enable_legacy_msix_mbx_intr(adapter);
 537		return IRQ_HANDLED;
 538	}
 539
 540	if (!test_bit(__QLCNIC_DEV_UP, &adapter->state)) {
 541		qlcnic_83xx_enable_legacy_msix_mbx_intr(adapter);
 542	} else {
 543		sds_ring = &adapter->recv_ctx->sds_rings[0];
 544		napi_schedule(&sds_ring->napi);
 545	}
 546
 547	return IRQ_HANDLED;
 548}
 549
 550irqreturn_t qlcnic_83xx_tmp_intr(int irq, void *data)
 551{
 552	struct qlcnic_host_sds_ring *sds_ring = data;
 553	struct qlcnic_adapter *adapter = sds_ring->adapter;
 554
 555	if (adapter->flags & QLCNIC_MSIX_ENABLED)
 556		goto done;
 557
 558	if (adapter->nic_ops->clear_legacy_intr(adapter) == IRQ_NONE)
 559		return IRQ_NONE;
 560
 561done:
 562	adapter->ahw->diag_cnt++;
 563	qlcnic_enable_sds_intr(adapter, sds_ring);
 564
 565	return IRQ_HANDLED;
 566}
 567
 568void qlcnic_83xx_free_mbx_intr(struct qlcnic_adapter *adapter)
 569{
 570	u32 num_msix;
 571
 572	if (!(adapter->flags & QLCNIC_MSIX_ENABLED))
 573		qlcnic_83xx_set_legacy_intr_mask(adapter);
 574
 575	qlcnic_83xx_disable_mbx_intr(adapter);
 576
 577	if (adapter->flags & QLCNIC_MSIX_ENABLED)
 578		num_msix = adapter->ahw->num_msix - 1;
 579	else
 580		num_msix = 0;
 581
 582	msleep(20);
 583
 584	if (adapter->msix_entries) {
 585		synchronize_irq(adapter->msix_entries[num_msix].vector);
 586		free_irq(adapter->msix_entries[num_msix].vector, adapter);
 587	}
 588}
 589
 590int qlcnic_83xx_setup_mbx_intr(struct qlcnic_adapter *adapter)
 591{
 592	irq_handler_t handler;
 593	u32 val;
 594	int err = 0;
 595	unsigned long flags = 0;
 596
 597	if (!(adapter->flags & QLCNIC_MSI_ENABLED) &&
 598	    !(adapter->flags & QLCNIC_MSIX_ENABLED))
 599		flags |= IRQF_SHARED;
 600
 601	if (adapter->flags & QLCNIC_MSIX_ENABLED) {
 602		handler = qlcnic_83xx_handle_aen;
 603		val = adapter->msix_entries[adapter->ahw->num_msix - 1].vector;
 604		err = request_irq(val, handler, flags, "qlcnic-MB", adapter);
 605		if (err) {
 606			dev_err(&adapter->pdev->dev,
 607				"failed to register MBX interrupt\n");
 608			return err;
 609		}
 610	} else {
 611		handler = qlcnic_83xx_intr;
 612		val = adapter->msix_entries[0].vector;
 613		err = request_irq(val, handler, flags, "qlcnic", adapter);
 614		if (err) {
 615			dev_err(&adapter->pdev->dev,
 616				"failed to register INTx interrupt\n");
 617			return err;
 618		}
 619		qlcnic_83xx_clear_legacy_intr_mask(adapter);
 620	}
 621
 622	/* Enable mailbox interrupt */
 623	qlcnic_83xx_enable_mbx_interrupt(adapter);
 624
 625	return err;
 626}
 627
 628void qlcnic_83xx_get_func_no(struct qlcnic_adapter *adapter)
 629{
 630	u32 val = QLCRDX(adapter->ahw, QLCNIC_INFORMANT);
 631	adapter->ahw->pci_func = (val >> 24) & 0xff;
 632}
 633
 634int qlcnic_83xx_cam_lock(struct qlcnic_adapter *adapter)
 635{
 636	void __iomem *addr;
 637	u32 val, limit = 0;
 638
 639	struct qlcnic_hardware_context *ahw = adapter->ahw;
 640
 641	addr = ahw->pci_base0 + QLC_83XX_SEM_LOCK_FUNC(ahw->pci_func);
 642	do {
 643		val = readl(addr);
 644		if (val) {
 645			/* write the function number to register */
 646			QLC_SHARED_REG_WR32(adapter, QLCNIC_FLASH_LOCK_OWNER,
 647					    ahw->pci_func);
 648			return 0;
 649		}
 650		usleep_range(1000, 2000);
 651	} while (++limit <= QLCNIC_PCIE_SEM_TIMEOUT);
 652
 653	return -EIO;
 654}
 655
 656void qlcnic_83xx_cam_unlock(struct qlcnic_adapter *adapter)
 657{
 658	void __iomem *addr;
 659	struct qlcnic_hardware_context *ahw = adapter->ahw;
 660
 661	addr = ahw->pci_base0 + QLC_83XX_SEM_UNLOCK_FUNC(ahw->pci_func);
 662	readl(addr);
 663}
 664
 665void qlcnic_83xx_read_crb(struct qlcnic_adapter *adapter, char *buf,
 666			  loff_t offset, size_t size)
 667{
 668	int ret = 0;
 669	u32 data;
 670
 671	if (qlcnic_api_lock(adapter)) {
 672		dev_err(&adapter->pdev->dev,
 673			"%s: failed to acquire lock. addr offset 0x%x\n",
 674			__func__, (u32)offset);
 675		return;
 676	}
 677
 678	data = QLCRD32(adapter, (u32) offset, &ret);
 679	qlcnic_api_unlock(adapter);
 680
 681	if (ret == -EIO) {
 682		dev_err(&adapter->pdev->dev,
 683			"%s: failed. addr offset 0x%x\n",
 684			__func__, (u32)offset);
 685		return;
 686	}
 687	memcpy(buf, &data, size);
 688}
 689
 690void qlcnic_83xx_write_crb(struct qlcnic_adapter *adapter, char *buf,
 691			   loff_t offset, size_t size)
 692{
 693	u32 data;
 694
 695	memcpy(&data, buf, size);
 696	qlcnic_83xx_wrt_reg_indirect(adapter, (u32) offset, data);
 697}
 698
 699int qlcnic_83xx_get_port_info(struct qlcnic_adapter *adapter)
 700{
 701	struct qlcnic_hardware_context *ahw = adapter->ahw;
 702	int status;
 703
 704	status = qlcnic_83xx_get_port_config(adapter);
 705	if (status) {
 706		dev_err(&adapter->pdev->dev,
 707			"Get Port Info failed\n");
 708	} else {
 709
 710		if (ahw->port_config & QLC_83XX_10G_CAPABLE) {
 711			ahw->port_type = QLCNIC_XGBE;
 712		} else if (ahw->port_config & QLC_83XX_10_CAPABLE ||
 713			   ahw->port_config & QLC_83XX_100_CAPABLE ||
 714			   ahw->port_config & QLC_83XX_1G_CAPABLE) {
 715			ahw->port_type = QLCNIC_GBE;
 716		} else {
 717			ahw->port_type = QLCNIC_XGBE;
 718		}
 719
 720		if (QLC_83XX_AUTONEG(ahw->port_config))
 721			ahw->link_autoneg = AUTONEG_ENABLE;
 722
 723	}
 724	return status;
 725}
 726
 727static void qlcnic_83xx_set_mac_filter_count(struct qlcnic_adapter *adapter)
 728{
 729	struct qlcnic_hardware_context *ahw = adapter->ahw;
 730	u16 act_pci_fn = ahw->total_nic_func;
 731	u16 count;
 732
 733	ahw->max_mc_count = QLC_83XX_MAX_MC_COUNT;
 734	if (act_pci_fn <= 2)
 735		count = (QLC_83XX_MAX_UC_COUNT - QLC_83XX_MAX_MC_COUNT) /
 736			 act_pci_fn;
 737	else
 738		count = (QLC_83XX_LB_MAX_FILTERS - QLC_83XX_MAX_MC_COUNT) /
 739			 act_pci_fn;
 740	ahw->max_uc_count = count;
 741}
 742
 743void qlcnic_83xx_enable_mbx_interrupt(struct qlcnic_adapter *adapter)
 744{
 745	u32 val;
 746
 747	if (adapter->flags & QLCNIC_MSIX_ENABLED)
 748		val = BIT_2 | ((adapter->ahw->num_msix - 1) << 8);
 749	else
 750		val = BIT_2;
 751
 752	QLCWRX(adapter->ahw, QLCNIC_MBX_INTR_ENBL, val);
 753	qlcnic_83xx_enable_legacy_msix_mbx_intr(adapter);
 754}
 755
 756void qlcnic_83xx_check_vf(struct qlcnic_adapter *adapter,
 757			  const struct pci_device_id *ent)
 758{
 759	u32 op_mode, priv_level;
 760	struct qlcnic_hardware_context *ahw = adapter->ahw;
 761
 762	ahw->fw_hal_version = 2;
 763	qlcnic_get_func_no(adapter);
 764
 765	if (qlcnic_sriov_vf_check(adapter)) {
 766		qlcnic_sriov_vf_set_ops(adapter);
 767		return;
 768	}
 769
 770	/* Determine function privilege level */
 771	op_mode = QLCRDX(adapter->ahw, QLC_83XX_DRV_OP_MODE);
 772	if (op_mode == QLC_83XX_DEFAULT_OPMODE)
 773		priv_level = QLCNIC_MGMT_FUNC;
 774	else
 775		priv_level = QLC_83XX_GET_FUNC_PRIVILEGE(op_mode,
 776							 ahw->pci_func);
 777
 778	if (priv_level == QLCNIC_NON_PRIV_FUNC) {
 779		ahw->op_mode = QLCNIC_NON_PRIV_FUNC;
 780		dev_info(&adapter->pdev->dev,
 781			 "HAL Version: %d Non Privileged function\n",
 782			 ahw->fw_hal_version);
 783		adapter->nic_ops = &qlcnic_vf_ops;
 784	} else {
 785		if (pci_find_ext_capability(adapter->pdev,
 786					    PCI_EXT_CAP_ID_SRIOV))
 787			set_bit(__QLCNIC_SRIOV_CAPABLE, &adapter->state);
 788		adapter->nic_ops = &qlcnic_83xx_ops;
 789	}
 790}
 791
 792static void qlcnic_83xx_handle_link_aen(struct qlcnic_adapter *adapter,
 793					u32 data[]);
 794static void qlcnic_83xx_handle_idc_comp_aen(struct qlcnic_adapter *adapter,
 795					    u32 data[]);
 796
 797void qlcnic_dump_mbx(struct qlcnic_adapter *adapter,
 798		     struct qlcnic_cmd_args *cmd)
 799{
 800	int i;
 801
 802	if (cmd->op_type == QLC_83XX_MBX_POST_BC_OP)
 803		return;
 804
 805	dev_info(&adapter->pdev->dev,
 806		 "Host MBX regs(%d)\n", cmd->req.num);
 807	for (i = 0; i < cmd->req.num; i++) {
 808		if (i && !(i % 8))
 809			pr_info("\n");
 810		pr_info("%08x ", cmd->req.arg[i]);
 811	}
 812	pr_info("\n");
 813	dev_info(&adapter->pdev->dev,
 814		 "FW MBX regs(%d)\n", cmd->rsp.num);
 815	for (i = 0; i < cmd->rsp.num; i++) {
 816		if (i && !(i % 8))
 817			pr_info("\n");
 818		pr_info("%08x ", cmd->rsp.arg[i]);
 819	}
 820	pr_info("\n");
 821}
 822
 823static void qlcnic_83xx_poll_for_mbx_completion(struct qlcnic_adapter *adapter,
 824						struct qlcnic_cmd_args *cmd)
 825{
 826	struct qlcnic_hardware_context *ahw = adapter->ahw;
 827	int opcode = LSW(cmd->req.arg[0]);
 828	unsigned long max_loops;
 829
 830	max_loops = cmd->total_cmds * QLC_83XX_MBX_CMD_LOOP;
 831
 832	for (; max_loops; max_loops--) {
 833		if (atomic_read(&cmd->rsp_status) ==
 834		    QLC_83XX_MBX_RESPONSE_ARRIVED)
 835			return;
 836
 837		udelay(1);
 838	}
 839
 840	dev_err(&adapter->pdev->dev,
 841		"%s: Mailbox command timed out, cmd_op=0x%x, cmd_type=0x%x, pci_func=0x%x, op_mode=0x%x\n",
 842		__func__, opcode, cmd->type, ahw->pci_func, ahw->op_mode);
 843	flush_workqueue(ahw->mailbox->work_q);
 844	return;
 845}
 846
 847int qlcnic_83xx_issue_cmd(struct qlcnic_adapter *adapter,
 848			  struct qlcnic_cmd_args *cmd)
 849{
 850	struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
 851	struct qlcnic_hardware_context *ahw = adapter->ahw;
 852	int cmd_type, err, opcode;
 853	unsigned long timeout;
 854
 855	if (!mbx)
 856		return -EIO;
 857
 858	opcode = LSW(cmd->req.arg[0]);
 859	cmd_type = cmd->type;
 860	err = mbx->ops->enqueue_cmd(adapter, cmd, &timeout);
 861	if (err) {
 862		dev_err(&adapter->pdev->dev,
 863			"%s: Mailbox not available, cmd_op=0x%x, cmd_context=0x%x, pci_func=0x%x, op_mode=0x%x\n",
 864			__func__, opcode, cmd->type, ahw->pci_func,
 865			ahw->op_mode);
 866		return err;
 867	}
 868
 869	switch (cmd_type) {
 870	case QLC_83XX_MBX_CMD_WAIT:
 871		if (!wait_for_completion_timeout(&cmd->completion, timeout)) {
 872			dev_err(&adapter->pdev->dev,
 873				"%s: Mailbox command timed out, cmd_op=0x%x, cmd_type=0x%x, pci_func=0x%x, op_mode=0x%x\n",
 874				__func__, opcode, cmd_type, ahw->pci_func,
 875				ahw->op_mode);
 876			flush_workqueue(mbx->work_q);
 877		}
 878		break;
 879	case QLC_83XX_MBX_CMD_NO_WAIT:
 880		return 0;
 881	case QLC_83XX_MBX_CMD_BUSY_WAIT:
 882		qlcnic_83xx_poll_for_mbx_completion(adapter, cmd);
 883		break;
 884	default:
 885		dev_err(&adapter->pdev->dev,
 886			"%s: Invalid mailbox command, cmd_op=0x%x, cmd_type=0x%x, pci_func=0x%x, op_mode=0x%x\n",
 887			__func__, opcode, cmd_type, ahw->pci_func,
 888			ahw->op_mode);
 889		qlcnic_83xx_detach_mailbox_work(adapter);
 890	}
 891
 892	return cmd->rsp_opcode;
 893}
 894
 895int qlcnic_83xx_alloc_mbx_args(struct qlcnic_cmd_args *mbx,
 896			       struct qlcnic_adapter *adapter, u32 type)
 897{
 898	int i, size;
 899	u32 temp;
 900	const struct qlcnic_mailbox_metadata *mbx_tbl;
 901
 902	memset(mbx, 0, sizeof(struct qlcnic_cmd_args));
 903	mbx_tbl = qlcnic_83xx_mbx_tbl;
 904	size = ARRAY_SIZE(qlcnic_83xx_mbx_tbl);
 905	for (i = 0; i < size; i++) {
 906		if (type == mbx_tbl[i].cmd) {
 907			mbx->op_type = QLC_83XX_FW_MBX_CMD;
 908			mbx->req.num = mbx_tbl[i].in_args;
 909			mbx->rsp.num = mbx_tbl[i].out_args;
 910			mbx->req.arg = kcalloc(mbx->req.num, sizeof(u32),
 911					       GFP_ATOMIC);
 912			if (!mbx->req.arg)
 913				return -ENOMEM;
 914			mbx->rsp.arg = kcalloc(mbx->rsp.num, sizeof(u32),
 915					       GFP_ATOMIC);
 916			if (!mbx->rsp.arg) {
 917				kfree(mbx->req.arg);
 918				mbx->req.arg = NULL;
 919				return -ENOMEM;
 920			}
 921			temp = adapter->ahw->fw_hal_version << 29;
 922			mbx->req.arg[0] = (type | (mbx->req.num << 16) | temp);
 923			mbx->cmd_op = type;
 924			return 0;
 925		}
 926	}
 927
 928	dev_err(&adapter->pdev->dev, "%s: Invalid mailbox command opcode 0x%x\n",
 929		__func__, type);
 930	return -EINVAL;
 931}
 932
 933void qlcnic_83xx_idc_aen_work(struct work_struct *work)
 934{
 935	struct qlcnic_adapter *adapter;
 936	struct qlcnic_cmd_args cmd;
 937	int i, err = 0;
 938
 939	adapter = container_of(work, struct qlcnic_adapter, idc_aen_work.work);
 940	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_IDC_ACK);
 941	if (err)
 942		return;
 943
 944	for (i = 1; i < QLC_83XX_MBX_AEN_CNT; i++)
 945		cmd.req.arg[i] = adapter->ahw->mbox_aen[i];
 946
 947	err = qlcnic_issue_cmd(adapter, &cmd);
 948	if (err)
 949		dev_info(&adapter->pdev->dev,
 950			 "%s: Mailbox IDC ACK failed.\n", __func__);
 951	qlcnic_free_mbx_args(&cmd);
 952}
 953
 954static void qlcnic_83xx_handle_idc_comp_aen(struct qlcnic_adapter *adapter,
 955					    u32 data[])
 956{
 957	dev_dbg(&adapter->pdev->dev, "Completion AEN:0x%x.\n",
 958		QLCNIC_MBX_RSP(data[0]));
 959	clear_bit(QLC_83XX_IDC_COMP_AEN, &adapter->ahw->idc.status);
 960	return;
 961}
 962
 963static void __qlcnic_83xx_process_aen(struct qlcnic_adapter *adapter)
 964{
 965	struct qlcnic_hardware_context *ahw = adapter->ahw;
 966	u32 event[QLC_83XX_MBX_AEN_CNT];
 967	int i;
 968
 969	for (i = 0; i < QLC_83XX_MBX_AEN_CNT; i++)
 970		event[i] = readl(QLCNIC_MBX_FW(ahw, i));
 971
 972	switch (QLCNIC_MBX_RSP(event[0])) {
 973
 974	case QLCNIC_MBX_LINK_EVENT:
 975		qlcnic_83xx_handle_link_aen(adapter, event);
 976		break;
 977	case QLCNIC_MBX_COMP_EVENT:
 978		qlcnic_83xx_handle_idc_comp_aen(adapter, event);
 979		break;
 980	case QLCNIC_MBX_REQUEST_EVENT:
 981		for (i = 0; i < QLC_83XX_MBX_AEN_CNT; i++)
 982			adapter->ahw->mbox_aen[i] = QLCNIC_MBX_RSP(event[i]);
 983		queue_delayed_work(adapter->qlcnic_wq,
 984				   &adapter->idc_aen_work, 0);
 985		break;
 986	case QLCNIC_MBX_TIME_EXTEND_EVENT:
 987		ahw->extend_lb_time = event[1] >> 8 & 0xf;
 988		break;
 989	case QLCNIC_MBX_BC_EVENT:
 990		qlcnic_sriov_handle_bc_event(adapter, event[1]);
 991		break;
 992	case QLCNIC_MBX_SFP_INSERT_EVENT:
 993		dev_info(&adapter->pdev->dev, "SFP+ Insert AEN:0x%x.\n",
 994			 QLCNIC_MBX_RSP(event[0]));
 995		break;
 996	case QLCNIC_MBX_SFP_REMOVE_EVENT:
 997		dev_info(&adapter->pdev->dev, "SFP Removed AEN:0x%x.\n",
 998			 QLCNIC_MBX_RSP(event[0]));
 999		break;
1000	case QLCNIC_MBX_DCBX_CONFIG_CHANGE_EVENT:
1001		qlcnic_dcb_aen_handler(adapter->dcb, (void *)&event[1]);
1002		break;
1003	default:
1004		dev_dbg(&adapter->pdev->dev, "Unsupported AEN:0x%x.\n",
1005			QLCNIC_MBX_RSP(event[0]));
1006		break;
1007	}
1008
1009	QLCWRX(ahw, QLCNIC_FW_MBX_CTRL, QLCNIC_CLR_OWNER);
1010}
1011
1012static void qlcnic_83xx_process_aen(struct qlcnic_adapter *adapter)
1013{
1014	u32 resp, event, rsp_status = QLC_83XX_MBX_RESPONSE_ARRIVED;
1015	struct qlcnic_hardware_context *ahw = adapter->ahw;
1016	struct qlcnic_mailbox *mbx = ahw->mailbox;
1017	unsigned long flags;
1018
1019	spin_lock_irqsave(&mbx->aen_lock, flags);
1020	resp = QLCRDX(ahw, QLCNIC_FW_MBX_CTRL);
1021	if (resp & QLCNIC_SET_OWNER) {
1022		event = readl(QLCNIC_MBX_FW(ahw, 0));
1023		if (event &  QLCNIC_MBX_ASYNC_EVENT) {
1024			__qlcnic_83xx_process_aen(adapter);
1025		} else {
1026			if (mbx->rsp_status != rsp_status)
1027				qlcnic_83xx_notify_mbx_response(mbx);
1028		}
1029	}
1030	spin_unlock_irqrestore(&mbx->aen_lock, flags);
1031}
1032
1033static void qlcnic_83xx_mbx_poll_work(struct work_struct *work)
1034{
1035	struct qlcnic_adapter *adapter;
1036
1037	adapter = container_of(work, struct qlcnic_adapter, mbx_poll_work.work);
1038
1039	if (!test_bit(__QLCNIC_MBX_POLL_ENABLE, &adapter->state))
1040		return;
1041
1042	qlcnic_83xx_process_aen(adapter);
1043	queue_delayed_work(adapter->qlcnic_wq, &adapter->mbx_poll_work,
1044			   (HZ / 10));
1045}
1046
1047void qlcnic_83xx_enable_mbx_poll(struct qlcnic_adapter *adapter)
1048{
1049	if (test_and_set_bit(__QLCNIC_MBX_POLL_ENABLE, &adapter->state))
1050		return;
1051
1052	INIT_DELAYED_WORK(&adapter->mbx_poll_work, qlcnic_83xx_mbx_poll_work);
1053	queue_delayed_work(adapter->qlcnic_wq, &adapter->mbx_poll_work, 0);
1054}
1055
1056void qlcnic_83xx_disable_mbx_poll(struct qlcnic_adapter *adapter)
1057{
1058	if (!test_and_clear_bit(__QLCNIC_MBX_POLL_ENABLE, &adapter->state))
1059		return;
1060	cancel_delayed_work_sync(&adapter->mbx_poll_work);
1061}
1062
1063static int qlcnic_83xx_add_rings(struct qlcnic_adapter *adapter)
1064{
1065	int index, i, err, sds_mbx_size;
1066	u32 *buf, intrpt_id, intr_mask;
1067	u16 context_id;
1068	u8 num_sds;
1069	struct qlcnic_cmd_args cmd;
1070	struct qlcnic_host_sds_ring *sds;
1071	struct qlcnic_sds_mbx sds_mbx;
1072	struct qlcnic_add_rings_mbx_out *mbx_out;
1073	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1074	struct qlcnic_hardware_context *ahw = adapter->ahw;
1075
1076	sds_mbx_size = sizeof(struct qlcnic_sds_mbx);
1077	context_id = recv_ctx->context_id;
1078	num_sds = adapter->drv_sds_rings - QLCNIC_MAX_SDS_RINGS;
1079	err = ahw->hw_ops->alloc_mbx_args(&cmd, adapter,
1080					QLCNIC_CMD_ADD_RCV_RINGS);
1081	if (err) {
1082		dev_err(&adapter->pdev->dev,
1083			"Failed to alloc mbx args %d\n", err);
1084		return err;
1085	}
1086
1087	cmd.req.arg[1] = 0 | (num_sds << 8) | (context_id << 16);
1088
1089	/* set up status rings, mbx 2-81 */
1090	index = 2;
1091	for (i = 8; i < adapter->drv_sds_rings; i++) {
1092		memset(&sds_mbx, 0, sds_mbx_size);
1093		sds = &recv_ctx->sds_rings[i];
1094		sds->consumer = 0;
1095		memset(sds->desc_head, 0, STATUS_DESC_RINGSIZE(sds));
1096		sds_mbx.phy_addr_low = LSD(sds->phys_addr);
1097		sds_mbx.phy_addr_high = MSD(sds->phys_addr);
1098		sds_mbx.sds_ring_size = sds->num_desc;
1099
1100		if (adapter->flags & QLCNIC_MSIX_ENABLED)
1101			intrpt_id = ahw->intr_tbl[i].id;
1102		else
1103			intrpt_id = QLCRDX(ahw, QLCNIC_DEF_INT_ID);
1104
1105		if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST)
1106			sds_mbx.intrpt_id = intrpt_id;
1107		else
1108			sds_mbx.intrpt_id = 0xffff;
1109		sds_mbx.intrpt_val = 0;
1110		buf = &cmd.req.arg[index];
1111		memcpy(buf, &sds_mbx, sds_mbx_size);
1112		index += sds_mbx_size / sizeof(u32);
1113	}
1114
1115	/* send the mailbox command */
1116	err = ahw->hw_ops->mbx_cmd(adapter, &cmd);
1117	if (err) {
1118		dev_err(&adapter->pdev->dev,
1119			"Failed to add rings %d\n", err);
1120		goto out;
1121	}
1122
1123	mbx_out = (struct qlcnic_add_rings_mbx_out *)&cmd.rsp.arg[1];
1124	index = 0;
1125	/* status descriptor ring */
1126	for (i = 8; i < adapter->drv_sds_rings; i++) {
1127		sds = &recv_ctx->sds_rings[i];
1128		sds->crb_sts_consumer = ahw->pci_base0 +
1129					mbx_out->host_csmr[index];
1130		if (adapter->flags & QLCNIC_MSIX_ENABLED)
1131			intr_mask = ahw->intr_tbl[i].src;
1132		else
1133			intr_mask = QLCRDX(ahw, QLCNIC_DEF_INT_MASK);
1134
1135		sds->crb_intr_mask = ahw->pci_base0 + intr_mask;
1136		index++;
1137	}
1138out:
1139	qlcnic_free_mbx_args(&cmd);
1140	return err;
1141}
1142
1143void qlcnic_83xx_del_rx_ctx(struct qlcnic_adapter *adapter)
1144{
1145	int err;
1146	u32 temp = 0;
1147	struct qlcnic_cmd_args cmd;
1148	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1149
1150	if (qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_DESTROY_RX_CTX))
1151		return;
1152
1153	if (qlcnic_sriov_pf_check(adapter) || qlcnic_sriov_vf_check(adapter))
1154		cmd.req.arg[0] |= (0x3 << 29);
1155
1156	if (qlcnic_sriov_pf_check(adapter))
1157		qlcnic_pf_set_interface_id_del_rx_ctx(adapter, &temp);
1158
1159	cmd.req.arg[1] = recv_ctx->context_id | temp;
1160	err = qlcnic_issue_cmd(adapter, &cmd);
1161	if (err)
1162		dev_err(&adapter->pdev->dev,
1163			"Failed to destroy rx ctx in firmware\n");
1164
1165	recv_ctx->state = QLCNIC_HOST_CTX_STATE_FREED;
1166	qlcnic_free_mbx_args(&cmd);
1167}
1168
1169int qlcnic_83xx_create_rx_ctx(struct qlcnic_adapter *adapter)
1170{
1171	int i, err, index, sds_mbx_size, rds_mbx_size;
1172	u8 num_sds, num_rds;
1173	u32 *buf, intrpt_id, intr_mask, cap = 0;
1174	struct qlcnic_host_sds_ring *sds;
1175	struct qlcnic_host_rds_ring *rds;
1176	struct qlcnic_sds_mbx sds_mbx;
1177	struct qlcnic_rds_mbx rds_mbx;
1178	struct qlcnic_cmd_args cmd;
1179	struct qlcnic_rcv_mbx_out *mbx_out;
1180	struct qlcnic_recv_context *recv_ctx = adapter->recv_ctx;
1181	struct qlcnic_hardware_context *ahw = adapter->ahw;
1182	num_rds = adapter->max_rds_rings;
1183
1184	if (adapter->drv_sds_rings <= QLCNIC_MAX_SDS_RINGS)
1185		num_sds = adapter->drv_sds_rings;
1186	else
1187		num_sds = QLCNIC_MAX_SDS_RINGS;
1188
1189	sds_mbx_size = sizeof(struct qlcnic_sds_mbx);
1190	rds_mbx_size = sizeof(struct qlcnic_rds_mbx);
1191	cap = QLCNIC_CAP0_LEGACY_CONTEXT;
1192
1193	if (adapter->flags & QLCNIC_FW_LRO_MSS_CAP)
1194		cap |= QLC_83XX_FW_CAP_LRO_MSS;
1195
1196	/* set mailbox hdr and capabilities */
1197	err = qlcnic_alloc_mbx_args(&cmd, adapter,
1198				    QLCNIC_CMD_CREATE_RX_CTX);
1199	if (err)
1200		return err;
1201
1202	if (qlcnic_sriov_pf_check(adapter) || qlcnic_sriov_vf_check(adapter))
1203		cmd.req.arg[0] |= (0x3 << 29);
1204
1205	cmd.req.arg[1] = cap;
1206	cmd.req.arg[5] = 1 | (num_rds << 5) | (num_sds << 8) |
1207			 (QLC_83XX_HOST_RDS_MODE_UNIQUE << 16);
1208
1209	if (qlcnic_sriov_pf_check(adapter))
1210		qlcnic_pf_set_interface_id_create_rx_ctx(adapter,
1211							 &cmd.req.arg[6]);
1212	/* set up status rings, mbx 8-57/87 */
1213	index = QLC_83XX_HOST_SDS_MBX_IDX;
1214	for (i = 0; i < num_sds; i++) {
1215		memset(&sds_mbx, 0, sds_mbx_size);
1216		sds = &recv_ctx->sds_rings[i];
1217		sds->consumer = 0;
1218		memset(sds->desc_head, 0, STATUS_DESC_RINGSIZE(sds));
1219		sds_mbx.phy_addr_low = LSD(sds->phys_addr);
1220		sds_mbx.phy_addr_high = MSD(sds->phys_addr);
1221		sds_mbx.sds_ring_size = sds->num_desc;
1222		if (adapter->flags & QLCNIC_MSIX_ENABLED)
1223			intrpt_id = ahw->intr_tbl[i].id;
1224		else
1225			intrpt_id = QLCRDX(ahw, QLCNIC_DEF_INT_ID);
1226		if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST)
1227			sds_mbx.intrpt_id = intrpt_id;
1228		else
1229			sds_mbx.intrpt_id = 0xffff;
1230		sds_mbx.intrpt_val = 0;
1231		buf = &cmd.req.arg[index];
1232		memcpy(buf, &sds_mbx, sds_mbx_size);
1233		index += sds_mbx_size / sizeof(u32);
1234	}
1235	/* set up receive rings, mbx 88-111/135 */
1236	index = QLCNIC_HOST_RDS_MBX_IDX;
1237	rds = &recv_ctx->rds_rings[0];
1238	rds->producer = 0;
1239	memset(&rds_mbx, 0, rds_mbx_size);
1240	rds_mbx.phy_addr_reg_low = LSD(rds->phys_addr);
1241	rds_mbx.phy_addr_reg_high = MSD(rds->phys_addr);
1242	rds_mbx.reg_ring_sz = rds->dma_size;
1243	rds_mbx.reg_ring_len = rds->num_desc;
1244	/* Jumbo ring */
1245	rds = &recv_ctx->rds_rings[1];
1246	rds->producer = 0;
1247	rds_mbx.phy_addr_jmb_low = LSD(rds->phys_addr);
1248	rds_mbx.phy_addr_jmb_high = MSD(rds->phys_addr);
1249	rds_mbx.jmb_ring_sz = rds->dma_size;
1250	rds_mbx.jmb_ring_len = rds->num_desc;
1251	buf = &cmd.req.arg[index];
1252	memcpy(buf, &rds_mbx, rds_mbx_size);
1253
1254	/* send the mailbox command */
1255	err = ahw->hw_ops->mbx_cmd(adapter, &cmd);
1256	if (err) {
1257		dev_err(&adapter->pdev->dev,
1258			"Failed to create Rx ctx in firmware%d\n", err);
1259		goto out;
1260	}
1261	mbx_out = (struct qlcnic_rcv_mbx_out *)&cmd.rsp.arg[1];
1262	recv_ctx->context_id = mbx_out->ctx_id;
1263	recv_ctx->state = mbx_out->state;
1264	recv_ctx->virt_port = mbx_out->vport_id;
1265	dev_info(&adapter->pdev->dev, "Rx Context[%d] Created, state:0x%x\n",
1266		 recv_ctx->context_id, recv_ctx->state);
1267	/* Receive descriptor ring */
1268	/* Standard ring */
1269	rds = &recv_ctx->rds_rings[0];
1270	rds->crb_rcv_producer = ahw->pci_base0 +
1271				mbx_out->host_prod[0].reg_buf;
1272	/* Jumbo ring */
1273	rds = &recv_ctx->rds_rings[1];
1274	rds->crb_rcv_producer = ahw->pci_base0 +
1275				mbx_out->host_prod[0].jmb_buf;
1276	/* status descriptor ring */
1277	for (i = 0; i < num_sds; i++) {
1278		sds = &recv_ctx->sds_rings[i];
1279		sds->crb_sts_consumer = ahw->pci_base0 +
1280					mbx_out->host_csmr[i];
1281		if (adapter->flags & QLCNIC_MSIX_ENABLED)
1282			intr_mask = ahw->intr_tbl[i].src;
1283		else
1284			intr_mask = QLCRDX(ahw, QLCNIC_DEF_INT_MASK);
1285		sds->crb_intr_mask = ahw->pci_base0 + intr_mask;
1286	}
1287
1288	if (adapter->drv_sds_rings > QLCNIC_MAX_SDS_RINGS)
1289		err = qlcnic_83xx_add_rings(adapter);
1290out:
1291	qlcnic_free_mbx_args(&cmd);
1292	return err;
1293}
1294
1295void qlcnic_83xx_del_tx_ctx(struct qlcnic_adapter *adapter,
1296			    struct qlcnic_host_tx_ring *tx_ring)
1297{
1298	struct qlcnic_cmd_args cmd;
1299	u32 temp = 0;
1300
1301	if (qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_DESTROY_TX_CTX))
1302		return;
1303
1304	if (qlcnic_sriov_pf_check(adapter) || qlcnic_sriov_vf_check(adapter))
1305		cmd.req.arg[0] |= (0x3 << 29);
1306
1307	if (qlcnic_sriov_pf_check(adapter))
1308		qlcnic_pf_set_interface_id_del_tx_ctx(adapter, &temp);
1309
1310	cmd.req.arg[1] = tx_ring->ctx_id | temp;
1311	if (qlcnic_issue_cmd(adapter, &cmd))
1312		dev_err(&adapter->pdev->dev,
1313			"Failed to destroy tx ctx in firmware\n");
1314	qlcnic_free_mbx_args(&cmd);
1315}
1316
1317int qlcnic_83xx_create_tx_ctx(struct qlcnic_adapter *adapter,
1318			      struct qlcnic_host_tx_ring *tx, int ring)
1319{
1320	int err;
1321	u16 msix_id;
1322	u32 *buf, intr_mask, temp = 0;
1323	struct qlcnic_cmd_args cmd;
1324	struct qlcnic_tx_mbx mbx;
1325	struct qlcnic_tx_mbx_out *mbx_out;
1326	struct qlcnic_hardware_context *ahw = adapter->ahw;
1327	u32 msix_vector;
1328
1329	/* Reset host resources */
1330	tx->producer = 0;
1331	tx->sw_consumer = 0;
1332	*(tx->hw_consumer) = 0;
1333
1334	memset(&mbx, 0, sizeof(struct qlcnic_tx_mbx));
1335
1336	/* setup mailbox inbox registerss */
1337	mbx.phys_addr_low = LSD(tx->phys_addr);
1338	mbx.phys_addr_high = MSD(tx->phys_addr);
1339	mbx.cnsmr_index_low = LSD(tx->hw_cons_phys_addr);
1340	mbx.cnsmr_index_high = MSD(tx->hw_cons_phys_addr);
1341	mbx.size = tx->num_desc;
1342	if (adapter->flags & QLCNIC_MSIX_ENABLED) {
1343		if (!(adapter->flags & QLCNIC_TX_INTR_SHARED))
1344			msix_vector = adapter->drv_sds_rings + ring;
1345		else
1346			msix_vector = adapter->drv_sds_rings - 1;
1347		msix_id = ahw->intr_tbl[msix_vector].id;
1348	} else {
1349		msix_id = QLCRDX(ahw, QLCNIC_DEF_INT_ID);
1350	}
1351
1352	if (adapter->ahw->diag_test != QLCNIC_LOOPBACK_TEST)
1353		mbx.intr_id = msix_id;
1354	else
1355		mbx.intr_id = 0xffff;
1356	mbx.src = 0;
1357
1358	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CREATE_TX_CTX);
1359	if (err)
1360		return err;
1361
1362	if (qlcnic_sriov_pf_check(adapter) || qlcnic_sriov_vf_check(adapter))
1363		cmd.req.arg[0] |= (0x3 << 29);
1364
1365	if (qlcnic_sriov_pf_check(adapter))
1366		qlcnic_pf_set_interface_id_create_tx_ctx(adapter, &temp);
1367
1368	cmd.req.arg[1] = QLCNIC_CAP0_LEGACY_CONTEXT;
1369	cmd.req.arg[5] = QLCNIC_SINGLE_RING | temp;
1370
1371	buf = &cmd.req.arg[6];
1372	memcpy(buf, &mbx, sizeof(struct qlcnic_tx_mbx));
1373	/* send the mailbox command*/
1374	err = qlcnic_issue_cmd(adapter, &cmd);
1375	if (err) {
1376		netdev_err(adapter->netdev,
1377			   "Failed to create Tx ctx in firmware 0x%x\n", err);
1378		goto out;
1379	}
1380	mbx_out = (struct qlcnic_tx_mbx_out *)&cmd.rsp.arg[2];
1381	tx->crb_cmd_producer = ahw->pci_base0 + mbx_out->host_prod;
1382	tx->ctx_id = mbx_out->ctx_id;
1383	if ((adapter->flags & QLCNIC_MSIX_ENABLED) &&
1384	    !(adapter->flags & QLCNIC_TX_INTR_SHARED)) {
1385		intr_mask = ahw->intr_tbl[adapter->drv_sds_rings + ring].src;
1386		tx->crb_intr_mask = ahw->pci_base0 + intr_mask;
1387	}
1388	netdev_info(adapter->netdev,
1389		    "Tx Context[0x%x] Created, state:0x%x\n",
1390		    tx->ctx_id, mbx_out->state);
1391out:
1392	qlcnic_free_mbx_args(&cmd);
1393	return err;
1394}
1395
1396static int qlcnic_83xx_diag_alloc_res(struct net_device *netdev, int test,
1397				      u8 num_sds_ring)
1398{
1399	struct qlcnic_adapter *adapter = netdev_priv(netdev);
1400	struct qlcnic_host_sds_ring *sds_ring;
1401	struct qlcnic_host_rds_ring *rds_ring;
1402	u16 adapter_state = adapter->is_up;
1403	u8 ring;
1404	int ret;
1405
1406	netif_device_detach(netdev);
1407
1408	if (netif_running(netdev))
1409		__qlcnic_down(adapter, netdev);
1410
1411	qlcnic_detach(adapter);
1412
1413	adapter->drv_sds_rings = QLCNIC_SINGLE_RING;
1414	adapter->ahw->diag_test = test;
1415	adapter->ahw->linkup = 0;
1416
1417	ret = qlcnic_attach(adapter);
1418	if (ret) {
1419		netif_device_attach(netdev);
1420		return ret;
1421	}
1422
1423	ret = qlcnic_fw_create_ctx(adapter);
1424	if (ret) {
1425		qlcnic_detach(adapter);
1426		if (adapter_state == QLCNIC_ADAPTER_UP_MAGIC) {
1427			adapter->drv_sds_rings = num_sds_ring;
1428			qlcnic_attach(adapter);
1429		}
1430		netif_device_attach(netdev);
1431		return ret;
1432	}
1433
1434	for (ring = 0; ring < adapter->max_rds_rings; ring++) {
1435		rds_ring = &adapter->recv_ctx->rds_rings[ring];
1436		qlcnic_post_rx_buffers(adapter, rds_ring, ring);
1437	}
1438
1439	if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1440		for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1441			sds_ring = &adapter->recv_ctx->sds_rings[ring];
1442			qlcnic_enable_sds_intr(adapter, sds_ring);
1443		}
1444	}
1445
1446	if (adapter->ahw->diag_test == QLCNIC_LOOPBACK_TEST) {
1447		adapter->ahw->loopback_state = 0;
1448		adapter->ahw->hw_ops->setup_link_event(adapter, 1);
1449	}
1450
1451	set_bit(__QLCNIC_DEV_UP, &adapter->state);
1452	return 0;
1453}
1454
1455static void qlcnic_83xx_diag_free_res(struct net_device *netdev,
1456				      u8 drv_sds_rings)
1457{
1458	struct qlcnic_adapter *adapter = netdev_priv(netdev);
1459	struct qlcnic_host_sds_ring *sds_ring;
1460	int ring;
1461
1462	clear_bit(__QLCNIC_DEV_UP, &adapter->state);
1463	if (adapter->ahw->diag_test == QLCNIC_INTERRUPT_TEST) {
1464		for (ring = 0; ring < adapter->drv_sds_rings; ring++) {
1465			sds_ring = &adapter->recv_ctx->sds_rings[ring];
1466			if (adapter->flags & QLCNIC_MSIX_ENABLED)
1467				qlcnic_disable_sds_intr(adapter, sds_ring);
1468		}
1469	}
1470
1471	qlcnic_fw_destroy_ctx(adapter);
1472	qlcnic_detach(adapter);
1473
1474	adapter->ahw->diag_test = 0;
1475	adapter->drv_sds_rings = drv_sds_rings;
1476
1477	if (qlcnic_attach(adapter))
1478		goto out;
1479
1480	if (netif_running(netdev))
1481		__qlcnic_up(adapter, netdev);
1482
1483out:
1484	netif_device_attach(netdev);
1485}
1486
1487static void qlcnic_83xx_get_beacon_state(struct qlcnic_adapter *adapter)
1488{
1489	struct qlcnic_hardware_context *ahw = adapter->ahw;
1490	struct qlcnic_cmd_args cmd;
1491	u8 beacon_state;
1492	int err = 0;
1493
1494	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_LED_CONFIG);
1495	if (!err) {
1496		err = qlcnic_issue_cmd(adapter, &cmd);
1497		if (!err) {
1498			beacon_state = cmd.rsp.arg[4];
1499			if (beacon_state == QLCNIC_BEACON_DISABLE)
1500				ahw->beacon_state = QLC_83XX_BEACON_OFF;
1501			else if (beacon_state == QLC_83XX_ENABLE_BEACON)
1502				ahw->beacon_state = QLC_83XX_BEACON_ON;
1503		}
1504	} else {
1505		netdev_err(adapter->netdev, "Get beacon state failed, err=%d\n",
1506			   err);
1507	}
1508
1509	qlcnic_free_mbx_args(&cmd);
1510
1511	return;
1512}
1513
1514int qlcnic_83xx_config_led(struct qlcnic_adapter *adapter, u32 state,
1515			   u32 beacon)
1516{
1517	struct qlcnic_cmd_args cmd;
1518	u32 mbx_in;
1519	int i, status = 0;
1520
1521	if (state) {
1522		/* Get LED configuration */
1523		status = qlcnic_alloc_mbx_args(&cmd, adapter,
1524					       QLCNIC_CMD_GET_LED_CONFIG);
1525		if (status)
1526			return status;
1527
1528		status = qlcnic_issue_cmd(adapter, &cmd);
1529		if (status) {
1530			dev_err(&adapter->pdev->dev,
1531				"Get led config failed.\n");
1532			goto mbx_err;
1533		} else {
1534			for (i = 0; i < 4; i++)
1535				adapter->ahw->mbox_reg[i] = cmd.rsp.arg[i+1];
1536		}
1537		qlcnic_free_mbx_args(&cmd);
1538		/* Set LED Configuration */
1539		mbx_in = (LSW(QLC_83XX_LED_CONFIG) << 16) |
1540			  LSW(QLC_83XX_LED_CONFIG);
1541		status = qlcnic_alloc_mbx_args(&cmd, adapter,
1542					       QLCNIC_CMD_SET_LED_CONFIG);
1543		if (status)
1544			return status;
1545
1546		cmd.req.arg[1] = mbx_in;
1547		cmd.req.arg[2] = mbx_in;
1548		cmd.req.arg[3] = mbx_in;
1549		if (beacon)
1550			cmd.req.arg[4] = QLC_83XX_ENABLE_BEACON;
1551		status = qlcnic_issue_cmd(adapter, &cmd);
1552		if (status) {
1553			dev_err(&adapter->pdev->dev,
1554				"Set led config failed.\n");
1555		}
1556mbx_err:
1557		qlcnic_free_mbx_args(&cmd);
1558		return status;
1559
1560	} else {
1561		/* Restoring default LED configuration */
1562		status = qlcnic_alloc_mbx_args(&cmd, adapter,
1563					       QLCNIC_CMD_SET_LED_CONFIG);
1564		if (status)
1565			return status;
1566
1567		cmd.req.arg[1] = adapter->ahw->mbox_reg[0];
1568		cmd.req.arg[2] = adapter->ahw->mbox_reg[1];
1569		cmd.req.arg[3] = adapter->ahw->mbox_reg[2];
1570		if (beacon)
1571			cmd.req.arg[4] = adapter->ahw->mbox_reg[3];
1572		status = qlcnic_issue_cmd(adapter, &cmd);
1573		if (status)
1574			dev_err(&adapter->pdev->dev,
1575				"Restoring led config failed.\n");
1576		qlcnic_free_mbx_args(&cmd);
1577		return status;
1578	}
1579}
1580
1581int  qlcnic_83xx_set_led(struct net_device *netdev,
1582			 enum ethtool_phys_id_state state)
1583{
1584	struct qlcnic_adapter *adapter = netdev_priv(netdev);
1585	int err = -EIO, active = 1;
1586
1587	if (adapter->ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
1588		netdev_warn(netdev,
1589			    "LED test is not supported in non-privileged mode\n");
1590		return -EOPNOTSUPP;
1591	}
1592
1593	switch (state) {
1594	case ETHTOOL_ID_ACTIVE:
1595		if (test_and_set_bit(__QLCNIC_LED_ENABLE, &adapter->state))
1596			return -EBUSY;
1597
1598		if (test_bit(__QLCNIC_RESETTING, &adapter->state))
1599			break;
1600
1601		err = qlcnic_83xx_config_led(adapter, active, 0);
1602		if (err)
1603			netdev_err(netdev, "Failed to set LED blink state\n");
1604		break;
1605	case ETHTOOL_ID_INACTIVE:
1606		active = 0;
1607
1608		if (test_bit(__QLCNIC_RESETTING, &adapter->state))
1609			break;
1610
1611		err = qlcnic_83xx_config_led(adapter, active, 0);
1612		if (err)
1613			netdev_err(netdev, "Failed to reset LED blink state\n");
1614		break;
1615
1616	default:
1617		return -EINVAL;
1618	}
1619
1620	if (!active || err)
1621		clear_bit(__QLCNIC_LED_ENABLE, &adapter->state);
1622
1623	return err;
1624}
1625
1626void qlcnic_83xx_initialize_nic(struct qlcnic_adapter *adapter, int enable)
1627{
1628	struct qlcnic_cmd_args cmd;
1629	int status;
1630
1631	if (qlcnic_sriov_vf_check(adapter))
1632		return;
1633
1634	if (enable)
1635		status = qlcnic_alloc_mbx_args(&cmd, adapter,
1636					       QLCNIC_CMD_INIT_NIC_FUNC);
1637	else
1638		status = qlcnic_alloc_mbx_args(&cmd, adapter,
1639					       QLCNIC_CMD_STOP_NIC_FUNC);
1640
1641	if (status)
1642		return;
1643
1644	cmd.req.arg[1] = QLC_REGISTER_LB_IDC | QLC_INIT_FW_RESOURCES;
1645
1646	if (adapter->dcb)
1647		cmd.req.arg[1] |= QLC_REGISTER_DCB_AEN;
1648
1649	status = qlcnic_issue_cmd(adapter, &cmd);
1650	if (status)
1651		dev_err(&adapter->pdev->dev,
1652			"Failed to %s in NIC IDC function event.\n",
1653			(enable ? "register" : "unregister"));
1654
1655	qlcnic_free_mbx_args(&cmd);
1656}
1657
1658static int qlcnic_83xx_set_port_config(struct qlcnic_adapter *adapter)
1659{
1660	struct qlcnic_cmd_args cmd;
1661	int err;
1662
1663	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_PORT_CONFIG);
1664	if (err)
1665		return err;
1666
1667	cmd.req.arg[1] = adapter->ahw->port_config;
1668	err = qlcnic_issue_cmd(adapter, &cmd);
1669	if (err)
1670		dev_info(&adapter->pdev->dev, "Set Port Config failed.\n");
1671	qlcnic_free_mbx_args(&cmd);
1672	return err;
1673}
1674
1675static int qlcnic_83xx_get_port_config(struct qlcnic_adapter *adapter)
1676{
1677	struct qlcnic_cmd_args cmd;
1678	int err;
1679
1680	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_PORT_CONFIG);
1681	if (err)
1682		return err;
1683
1684	err = qlcnic_issue_cmd(adapter, &cmd);
1685	if (err)
1686		dev_info(&adapter->pdev->dev, "Get Port config failed\n");
1687	else
1688		adapter->ahw->port_config = cmd.rsp.arg[1];
1689	qlcnic_free_mbx_args(&cmd);
1690	return err;
1691}
1692
1693int qlcnic_83xx_setup_link_event(struct qlcnic_adapter *adapter, int enable)
1694{
1695	int err;
1696	u32 temp;
1697	struct qlcnic_cmd_args cmd;
1698
1699	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_LINK_EVENT);
1700	if (err)
1701		return err;
1702
1703	temp = adapter->recv_ctx->context_id << 16;
1704	cmd.req.arg[1] = (enable ? 1 : 0) | BIT_8 | temp;
1705	err = qlcnic_issue_cmd(adapter, &cmd);
1706	if (err)
1707		dev_info(&adapter->pdev->dev,
1708			 "Setup linkevent mailbox failed\n");
1709	qlcnic_free_mbx_args(&cmd);
1710	return err;
1711}
1712
1713static void qlcnic_83xx_set_interface_id_promisc(struct qlcnic_adapter *adapter,
1714						 u32 *interface_id)
1715{
1716	if (qlcnic_sriov_pf_check(adapter)) {
1717		qlcnic_alloc_lb_filters_mem(adapter);
1718		qlcnic_pf_set_interface_id_promisc(adapter, interface_id);
1719		adapter->rx_mac_learn = true;
1720	} else {
1721		if (!qlcnic_sriov_vf_check(adapter))
1722			*interface_id = adapter->recv_ctx->context_id << 16;
1723	}
1724}
1725
1726int qlcnic_83xx_nic_set_promisc(struct qlcnic_adapter *adapter, u32 mode)
1727{
1728	struct qlcnic_cmd_args *cmd = NULL;
1729	u32 temp = 0;
1730	int err;
1731
1732	if (adapter->recv_ctx->state == QLCNIC_HOST_CTX_STATE_FREED)
1733		return -EIO;
1734
1735	cmd = kzalloc(sizeof(*cmd), GFP_ATOMIC);
1736	if (!cmd)
1737		return -ENOMEM;
1738
1739	err = qlcnic_alloc_mbx_args(cmd, adapter,
1740				    QLCNIC_CMD_CONFIGURE_MAC_RX_MODE);
1741	if (err)
1742		goto out;
1743
1744	cmd->type = QLC_83XX_MBX_CMD_NO_WAIT;
1745	qlcnic_83xx_set_interface_id_promisc(adapter, &temp);
1746
1747	if (qlcnic_84xx_check(adapter) && qlcnic_sriov_pf_check(adapter))
1748		mode = VPORT_MISS_MODE_ACCEPT_ALL;
1749
1750	cmd->req.arg[1] = mode | temp;
1751	err = qlcnic_issue_cmd(adapter, cmd);
1752	if (!err)
1753		return err;
1754
1755	qlcnic_free_mbx_args(cmd);
1756
1757out:
1758	kfree(cmd);
1759	return err;
1760}
1761
1762int qlcnic_83xx_loopback_test(struct net_device *netdev, u8 mode)
1763{
1764	struct qlcnic_adapter *adapter = netdev_priv(netdev);
1765	struct qlcnic_hardware_context *ahw = adapter->ahw;
1766	u8 drv_sds_rings = adapter->drv_sds_rings;
1767	u8 drv_tx_rings = adapter->drv_tx_rings;
1768	int ret = 0, loop = 0;
1769
1770	if (ahw->op_mode == QLCNIC_NON_PRIV_FUNC) {
1771		netdev_warn(netdev,
1772			    "Loopback test not supported in non privileged mode\n");
1773		return -ENOTSUPP;
1774	}
1775
1776	if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
1777		netdev_info(netdev, "Device is resetting\n");
1778		return -EBUSY;
1779	}
1780
1781	if (qlcnic_get_diag_lock(adapter)) {
1782		netdev_info(netdev, "Device is in diagnostics mode\n");
1783		return -EBUSY;
1784	}
1785
1786	netdev_info(netdev, "%s loopback test in progress\n",
1787		    mode == QLCNIC_ILB_MODE ? "internal" : "external");
1788
1789	ret = qlcnic_83xx_diag_alloc_res(netdev, QLCNIC_LOOPBACK_TEST,
1790					 drv_sds_rings);
1791	if (ret)
1792		goto fail_diag_alloc;
1793
1794	ret = qlcnic_83xx_set_lb_mode(adapter, mode);
1795	if (ret)
1796		goto free_diag_res;
1797
1798	/* Poll for link up event before running traffic */
1799	do {
1800		msleep(QLC_83XX_LB_MSLEEP_COUNT);
1801
1802		if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
1803			netdev_info(netdev,
1804				    "Device is resetting, free LB test resources\n");
1805			ret = -EBUSY;
1806			goto free_diag_res;
1807		}
1808		if (loop++ > QLC_83XX_LB_WAIT_COUNT) {
1809			netdev_info(netdev,
1810				    "Firmware didn't sent link up event to loopback request\n");
1811			ret = -ETIMEDOUT;
1812			qlcnic_83xx_clear_lb_mode(adapter, mode);
1813			goto free_diag_res;
1814		}
1815	} while ((adapter->ahw->linkup && ahw->has_link_events) != 1);
1816
1817	ret = qlcnic_do_lb_test(adapter, mode);
1818
1819	qlcnic_83xx_clear_lb_mode(adapter, mode);
1820
1821free_diag_res:
1822	qlcnic_83xx_diag_free_res(netdev, drv_sds_rings);
1823
1824fail_diag_alloc:
1825	adapter->drv_sds_rings = drv_sds_rings;
1826	adapter->drv_tx_rings = drv_tx_rings;
1827	qlcnic_release_diag_lock(adapter);
1828	return ret;
1829}
1830
1831static void qlcnic_extend_lb_idc_cmpltn_wait(struct qlcnic_adapter *adapter,
1832					     u32 *max_wait_count)
1833{
1834	struct qlcnic_hardware_context *ahw = adapter->ahw;
1835	int temp;
1836
1837	netdev_info(adapter->netdev, "Received loopback IDC time extend event for 0x%x seconds\n",
1838		    ahw->extend_lb_time);
1839	temp = ahw->extend_lb_time * 1000;
1840	*max_wait_count += temp / QLC_83XX_LB_MSLEEP_COUNT;
1841	ahw->extend_lb_time = 0;
1842}
1843
1844static int qlcnic_83xx_set_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
1845{
1846	struct qlcnic_hardware_context *ahw = adapter->ahw;
1847	struct net_device *netdev = adapter->netdev;
1848	u32 config, max_wait_count;
1849	int status = 0, loop = 0;
1850
1851	ahw->extend_lb_time = 0;
1852	max_wait_count = QLC_83XX_LB_WAIT_COUNT;
1853	status = qlcnic_83xx_get_port_config(adapter);
1854	if (status)
1855		return status;
1856
1857	config = ahw->port_config;
1858
1859	/* Check if port is already in loopback mode */
1860	if ((config & QLC_83XX_CFG_LOOPBACK_HSS) ||
1861	    (config & QLC_83XX_CFG_LOOPBACK_EXT)) {
1862		netdev_err(netdev,
1863			   "Port already in Loopback mode.\n");
1864		return -EINPROGRESS;
1865	}
1866
1867	set_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
1868
1869	if (mode == QLCNIC_ILB_MODE)
1870		ahw->port_config |= QLC_83XX_CFG_LOOPBACK_HSS;
1871	if (mode == QLCNIC_ELB_MODE)
1872		ahw->port_config |= QLC_83XX_CFG_LOOPBACK_EXT;
1873
1874	status = qlcnic_83xx_set_port_config(adapter);
1875	if (status) {
1876		netdev_err(netdev,
1877			   "Failed to Set Loopback Mode = 0x%x.\n",
1878			   ahw->port_config);
1879		ahw->port_config = config;
1880		clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
1881		return status;
1882	}
1883
1884	/* Wait for Link and IDC Completion AEN */
1885	do {
1886		msleep(QLC_83XX_LB_MSLEEP_COUNT);
1887
1888		if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
1889			netdev_info(netdev,
1890				    "Device is resetting, free LB test resources\n");
1891			clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
1892			return -EBUSY;
1893		}
1894
1895		if (ahw->extend_lb_time)
1896			qlcnic_extend_lb_idc_cmpltn_wait(adapter,
1897							 &max_wait_count);
1898
1899		if (loop++ > max_wait_count) {
1900			netdev_err(netdev, "%s: Did not receive loopback IDC completion AEN\n",
1901				   __func__);
1902			clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
1903			qlcnic_83xx_clear_lb_mode(adapter, mode);
1904			return -ETIMEDOUT;
1905		}
1906	} while (test_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status));
1907
1908	qlcnic_sre_macaddr_change(adapter, adapter->mac_addr, 0,
1909				  QLCNIC_MAC_ADD);
1910	return status;
1911}
1912
1913static int qlcnic_83xx_clear_lb_mode(struct qlcnic_adapter *adapter, u8 mode)
1914{
1915	struct qlcnic_hardware_context *ahw = adapter->ahw;
1916	u32 config = ahw->port_config, max_wait_count;
1917	struct net_device *netdev = adapter->netdev;
1918	int status = 0, loop = 0;
1919
1920	ahw->extend_lb_time = 0;
1921	max_wait_count = QLC_83XX_LB_WAIT_COUNT;
1922	set_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
1923	if (mode == QLCNIC_ILB_MODE)
1924		ahw->port_config &= ~QLC_83XX_CFG_LOOPBACK_HSS;
1925	if (mode == QLCNIC_ELB_MODE)
1926		ahw->port_config &= ~QLC_83XX_CFG_LOOPBACK_EXT;
1927
1928	status = qlcnic_83xx_set_port_config(adapter);
1929	if (status) {
1930		netdev_err(netdev,
1931			   "Failed to Clear Loopback Mode = 0x%x.\n",
1932			   ahw->port_config);
1933		ahw->port_config = config;
1934		clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
1935		return status;
1936	}
1937
1938	/* Wait for Link and IDC Completion AEN */
1939	do {
1940		msleep(QLC_83XX_LB_MSLEEP_COUNT);
1941
1942		if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
1943			netdev_info(netdev,
1944				    "Device is resetting, free LB test resources\n");
1945			clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
1946			return -EBUSY;
1947		}
1948
1949		if (ahw->extend_lb_time)
1950			qlcnic_extend_lb_idc_cmpltn_wait(adapter,
1951							 &max_wait_count);
1952
1953		if (loop++ > max_wait_count) {
1954			netdev_err(netdev, "%s: Did not receive loopback IDC completion AEN\n",
1955				   __func__);
1956			clear_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status);
1957			return -ETIMEDOUT;
1958		}
1959	} while (test_bit(QLC_83XX_IDC_COMP_AEN, &ahw->idc.status));
1960
1961	qlcnic_sre_macaddr_change(adapter, adapter->mac_addr, 0,
1962				  QLCNIC_MAC_DEL);
1963	return status;
1964}
1965
1966static void qlcnic_83xx_set_interface_id_ipaddr(struct qlcnic_adapter *adapter,
1967						u32 *interface_id)
1968{
1969	if (qlcnic_sriov_pf_check(adapter)) {
1970		qlcnic_pf_set_interface_id_ipaddr(adapter, interface_id);
1971	} else {
1972		if (!qlcnic_sriov_vf_check(adapter))
1973			*interface_id = adapter->recv_ctx->context_id << 16;
1974	}
1975}
1976
1977void qlcnic_83xx_config_ipaddr(struct qlcnic_adapter *adapter, __be32 ip,
1978			       int mode)
1979{
1980	int err;
1981	u32 temp = 0, temp_ip;
1982	struct qlcnic_cmd_args cmd;
1983
1984	err = qlcnic_alloc_mbx_args(&cmd, adapter,
1985				    QLCNIC_CMD_CONFIGURE_IP_ADDR);
1986	if (err)
1987		return;
1988
1989	qlcnic_83xx_set_interface_id_ipaddr(adapter, &temp);
1990
1991	if (mode == QLCNIC_IP_UP)
1992		cmd.req.arg[1] = 1 | temp;
1993	else
1994		cmd.req.arg[1] = 2 | temp;
1995
1996	/*
1997	 * Adapter needs IP address in network byte order.
1998	 * But hardware mailbox registers go through writel(), hence IP address
1999	 * gets swapped on big endian architecture.
2000	 * To negate swapping of writel() on big endian architecture
2001	 * use swab32(value).
2002	 */
2003
2004	temp_ip = swab32(ntohl(ip));
2005	memcpy(&cmd.req.arg[2], &temp_ip, sizeof(u32));
2006	err = qlcnic_issue_cmd(adapter, &cmd);
2007	if (err != QLCNIC_RCODE_SUCCESS)
2008		dev_err(&adapter->netdev->dev,
2009			"could not notify %s IP 0x%x request\n",
2010			(mode == QLCNIC_IP_UP) ? "Add" : "Remove", ip);
2011
2012	qlcnic_free_mbx_args(&cmd);
2013}
2014
2015int qlcnic_83xx_config_hw_lro(struct qlcnic_adapter *adapter, int mode)
2016{
2017	int err;
2018	u32 temp, arg1;
2019	struct qlcnic_cmd_args cmd;
2020	int lro_bit_mask;
2021
2022	lro_bit_mask = (mode ? (BIT_0 | BIT_1 | BIT_2 | BIT_3) : 0);
2023
2024	if (adapter->recv_ctx->state == QLCNIC_HOST_CTX_STATE_FREED)
2025		return 0;
2026
2027	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIGURE_HW_LRO);
2028	if (err)
2029		return err;
2030
2031	temp = adapter->recv_ctx->context_id << 16;
2032	arg1 = lro_bit_mask | temp;
2033	cmd.req.arg[1] = arg1;
2034
2035	err = qlcnic_issue_cmd(adapter, &cmd);
2036	if (err)
2037		dev_info(&adapter->pdev->dev, "LRO config failed\n");
2038	qlcnic_free_mbx_args(&cmd);
2039
2040	return err;
2041}
2042
2043int qlcnic_83xx_config_rss(struct qlcnic_adapter *adapter, int enable)
2044{
2045	struct qlcnic_cmd_args cmd;
2046	static const u64 key[] = {
2047		0xbeac01fa6a42b73bULL, 0x8030f20c77cb2da3ULL,
2048		0xae7b30b4d0ca2bcbULL, 0x43a38fb04167253dULL,
2049		0x255b0ec26d5a56daULL
2050	};
2051	u32 word;
2052	int err;
 
 
 
 
 
2053
2054	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIGURE_RSS);
2055	if (err)
2056		return err;
2057	/*
2058	 * RSS request:
2059	 * bits 3-0: Rsvd
2060	 *      5-4: hash_type_ipv4
2061	 *	7-6: hash_type_ipv6
2062	 *	  8: enable
2063	 *        9: use indirection table
2064	 *    16-31: indirection table mask
2065	 */
2066	word =  ((u32)(RSS_HASHTYPE_IP_TCP & 0x3) << 4) |
2067		((u32)(RSS_HASHTYPE_IP_TCP & 0x3) << 6) |
2068		((u32)(enable & 0x1) << 8) |
2069		((0x7ULL) << 16);
2070	cmd.req.arg[1] = (adapter->recv_ctx->context_id);
2071	cmd.req.arg[2] = word;
2072	memcpy(&cmd.req.arg[4], key, sizeof(key));
2073
2074	err = qlcnic_issue_cmd(adapter, &cmd);
2075
2076	if (err)
2077		dev_info(&adapter->pdev->dev, "RSS config failed\n");
2078	qlcnic_free_mbx_args(&cmd);
2079
2080	return err;
2081
2082}
2083
2084static void qlcnic_83xx_set_interface_id_macaddr(struct qlcnic_adapter *adapter,
2085						 u32 *interface_id)
2086{
2087	if (qlcnic_sriov_pf_check(adapter)) {
2088		qlcnic_pf_set_interface_id_macaddr(adapter, interface_id);
2089	} else {
2090		if (!qlcnic_sriov_vf_check(adapter))
2091			*interface_id = adapter->recv_ctx->context_id << 16;
2092	}
2093}
2094
2095int qlcnic_83xx_sre_macaddr_change(struct qlcnic_adapter *adapter, u8 *addr,
2096				   u16 vlan_id, u8 op)
2097{
2098	struct qlcnic_cmd_args *cmd = NULL;
2099	struct qlcnic_macvlan_mbx mv;
2100	u32 *buf, temp = 0;
2101	int err;
2102
2103	if (adapter->recv_ctx->state == QLCNIC_HOST_CTX_STATE_FREED)
2104		return -EIO;
2105
2106	cmd = kzalloc(sizeof(*cmd), GFP_ATOMIC);
2107	if (!cmd)
2108		return -ENOMEM;
2109
2110	err = qlcnic_alloc_mbx_args(cmd, adapter, QLCNIC_CMD_CONFIG_MAC_VLAN);
2111	if (err)
2112		goto out;
2113
2114	cmd->type = QLC_83XX_MBX_CMD_NO_WAIT;
2115
2116	if (vlan_id)
2117		op = (op == QLCNIC_MAC_ADD || op == QLCNIC_MAC_VLAN_ADD) ?
2118		     QLCNIC_MAC_VLAN_ADD : QLCNIC_MAC_VLAN_DEL;
2119
2120	cmd->req.arg[1] = op | (1 << 8);
2121	qlcnic_83xx_set_interface_id_macaddr(adapter, &temp);
2122	cmd->req.arg[1] |= temp;
2123	mv.vlan = vlan_id;
2124	mv.mac_addr0 = addr[0];
2125	mv.mac_addr1 = addr[1];
2126	mv.mac_addr2 = addr[2];
2127	mv.mac_addr3 = addr[3];
2128	mv.mac_addr4 = addr[4];
2129	mv.mac_addr5 = addr[5];
2130	buf = &cmd->req.arg[2];
2131	memcpy(buf, &mv, sizeof(struct qlcnic_macvlan_mbx));
2132	err = qlcnic_issue_cmd(adapter, cmd);
2133	if (!err)
2134		return err;
2135
2136	qlcnic_free_mbx_args(cmd);
2137out:
2138	kfree(cmd);
2139	return err;
2140}
2141
2142void qlcnic_83xx_change_l2_filter(struct qlcnic_adapter *adapter, u64 *addr,
2143				  u16 vlan_id,
2144				  struct qlcnic_host_tx_ring *tx_ring)
2145{
2146	u8 mac[ETH_ALEN];
2147	memcpy(&mac, addr, ETH_ALEN);
2148	qlcnic_83xx_sre_macaddr_change(adapter, mac, vlan_id, QLCNIC_MAC_ADD);
2149}
2150
2151static void qlcnic_83xx_configure_mac(struct qlcnic_adapter *adapter, u8 *mac,
2152				      u8 type, struct qlcnic_cmd_args *cmd)
2153{
2154	switch (type) {
2155	case QLCNIC_SET_STATION_MAC:
2156	case QLCNIC_SET_FAC_DEF_MAC:
2157		memcpy(&cmd->req.arg[2], mac, sizeof(u32));
2158		memcpy(&cmd->req.arg[3], &mac[4], sizeof(u16));
2159		break;
2160	}
2161	cmd->req.arg[1] = type;
2162}
2163
2164int qlcnic_83xx_get_mac_address(struct qlcnic_adapter *adapter, u8 *mac,
2165				u8 function)
2166{
2167	int err, i;
2168	struct qlcnic_cmd_args cmd;
2169	u32 mac_low, mac_high;
2170
2171	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_MAC_ADDRESS);
2172	if (err)
2173		return err;
2174
2175	qlcnic_83xx_configure_mac(adapter, mac, QLCNIC_GET_CURRENT_MAC, &cmd);
2176	err = qlcnic_issue_cmd(adapter, &cmd);
2177
2178	if (err == QLCNIC_RCODE_SUCCESS) {
2179		mac_low = cmd.rsp.arg[1];
2180		mac_high = cmd.rsp.arg[2];
2181
2182		for (i = 0; i < 2; i++)
2183			mac[i] = (u8) (mac_high >> ((1 - i) * 8));
2184		for (i = 2; i < 6; i++)
2185			mac[i] = (u8) (mac_low >> ((5 - i) * 8));
2186	} else {
2187		dev_err(&adapter->pdev->dev, "Failed to get mac address%d\n",
2188			err);
2189		err = -EIO;
2190	}
2191	qlcnic_free_mbx_args(&cmd);
2192	return err;
2193}
2194
2195static int qlcnic_83xx_set_rx_intr_coal(struct qlcnic_adapter *adapter)
2196{
2197	struct qlcnic_nic_intr_coalesce *coal = &adapter->ahw->coal;
2198	struct qlcnic_cmd_args cmd;
2199	u16 temp;
2200	int err;
2201
2202	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIG_INTR_COAL);
2203	if (err)
2204		return err;
2205
2206	temp = adapter->recv_ctx->context_id;
2207	cmd.req.arg[1] = QLCNIC_INTR_COAL_TYPE_RX | temp << 16;
2208	temp = coal->rx_time_us;
2209	cmd.req.arg[2] = coal->rx_packets | temp << 16;
2210	cmd.req.arg[3] = coal->flag;
2211
2212	err = qlcnic_issue_cmd(adapter, &cmd);
2213	if (err != QLCNIC_RCODE_SUCCESS)
2214		netdev_err(adapter->netdev,
2215			   "failed to set interrupt coalescing parameters\n");
2216
2217	qlcnic_free_mbx_args(&cmd);
2218
2219	return err;
2220}
2221
2222static int qlcnic_83xx_set_tx_intr_coal(struct qlcnic_adapter *adapter)
2223{
2224	struct qlcnic_nic_intr_coalesce *coal = &adapter->ahw->coal;
2225	struct qlcnic_cmd_args cmd;
2226	u16 temp;
2227	int err;
2228
2229	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIG_INTR_COAL);
2230	if (err)
2231		return err;
2232
2233	temp = adapter->tx_ring->ctx_id;
2234	cmd.req.arg[1] = QLCNIC_INTR_COAL_TYPE_TX | temp << 16;
2235	temp = coal->tx_time_us;
2236	cmd.req.arg[2] = coal->tx_packets | temp << 16;
2237	cmd.req.arg[3] = coal->flag;
2238
2239	err = qlcnic_issue_cmd(adapter, &cmd);
2240	if (err != QLCNIC_RCODE_SUCCESS)
2241		netdev_err(adapter->netdev,
2242			   "failed to set interrupt coalescing  parameters\n");
2243
2244	qlcnic_free_mbx_args(&cmd);
2245
2246	return err;
2247}
2248
2249int qlcnic_83xx_set_rx_tx_intr_coal(struct qlcnic_adapter *adapter)
2250{
2251	int err = 0;
2252
2253	err = qlcnic_83xx_set_rx_intr_coal(adapter);
2254	if (err)
2255		netdev_err(adapter->netdev,
2256			   "failed to set Rx coalescing parameters\n");
2257
2258	err = qlcnic_83xx_set_tx_intr_coal(adapter);
2259	if (err)
2260		netdev_err(adapter->netdev,
2261			   "failed to set Tx coalescing parameters\n");
2262
2263	return err;
2264}
2265
2266int qlcnic_83xx_config_intr_coal(struct qlcnic_adapter *adapter,
2267				 struct ethtool_coalesce *ethcoal)
2268{
2269	struct qlcnic_nic_intr_coalesce *coal = &adapter->ahw->coal;
2270	u32 rx_coalesce_usecs, rx_max_frames;
2271	u32 tx_coalesce_usecs, tx_max_frames;
2272	int err;
2273
2274	if (adapter->recv_ctx->state == QLCNIC_HOST_CTX_STATE_FREED)
2275		return -EIO;
2276
2277	tx_coalesce_usecs = ethcoal->tx_coalesce_usecs;
2278	tx_max_frames = ethcoal->tx_max_coalesced_frames;
2279	rx_coalesce_usecs = ethcoal->rx_coalesce_usecs;
2280	rx_max_frames = ethcoal->rx_max_coalesced_frames;
2281	coal->flag = QLCNIC_INTR_DEFAULT;
2282
2283	if ((coal->rx_time_us == rx_coalesce_usecs) &&
2284	    (coal->rx_packets == rx_max_frames)) {
2285		coal->type = QLCNIC_INTR_COAL_TYPE_TX;
2286		coal->tx_time_us = tx_coalesce_usecs;
2287		coal->tx_packets = tx_max_frames;
2288	} else if ((coal->tx_time_us == tx_coalesce_usecs) &&
2289		   (coal->tx_packets == tx_max_frames)) {
2290		coal->type = QLCNIC_INTR_COAL_TYPE_RX;
2291		coal->rx_time_us = rx_coalesce_usecs;
2292		coal->rx_packets = rx_max_frames;
2293	} else {
2294		coal->type = QLCNIC_INTR_COAL_TYPE_RX_TX;
2295		coal->rx_time_us = rx_coalesce_usecs;
2296		coal->rx_packets = rx_max_frames;
2297		coal->tx_time_us = tx_coalesce_usecs;
2298		coal->tx_packets = tx_max_frames;
2299	}
2300
2301	switch (coal->type) {
2302	case QLCNIC_INTR_COAL_TYPE_RX:
2303		err = qlcnic_83xx_set_rx_intr_coal(adapter);
2304		break;
2305	case QLCNIC_INTR_COAL_TYPE_TX:
2306		err = qlcnic_83xx_set_tx_intr_coal(adapter);
2307		break;
2308	case QLCNIC_INTR_COAL_TYPE_RX_TX:
2309		err = qlcnic_83xx_set_rx_tx_intr_coal(adapter);
2310		break;
2311	default:
2312		err = -EINVAL;
2313		netdev_err(adapter->netdev,
2314			   "Invalid Interrupt coalescing type\n");
2315		break;
2316	}
2317
2318	return err;
2319}
2320
2321static void qlcnic_83xx_handle_link_aen(struct qlcnic_adapter *adapter,
2322					u32 data[])
2323{
2324	struct qlcnic_hardware_context *ahw = adapter->ahw;
2325	u8 link_status, duplex;
2326	/* link speed */
2327	link_status = LSB(data[3]) & 1;
2328	if (link_status) {
2329		ahw->link_speed = MSW(data[2]);
2330		duplex = LSB(MSW(data[3]));
2331		if (duplex)
2332			ahw->link_duplex = DUPLEX_FULL;
2333		else
2334			ahw->link_duplex = DUPLEX_HALF;
2335	} else {
2336		ahw->link_speed = SPEED_UNKNOWN;
2337		ahw->link_duplex = DUPLEX_UNKNOWN;
2338	}
2339
2340	ahw->link_autoneg = MSB(MSW(data[3]));
2341	ahw->module_type = MSB(LSW(data[3]));
2342	ahw->has_link_events = 1;
2343	ahw->lb_mode = data[4] & QLCNIC_LB_MODE_MASK;
2344	qlcnic_advert_link_change(adapter, link_status);
2345}
2346
2347static irqreturn_t qlcnic_83xx_handle_aen(int irq, void *data)
2348{
2349	u32 mask, resp, event, rsp_status = QLC_83XX_MBX_RESPONSE_ARRIVED;
2350	struct qlcnic_adapter *adapter = data;
2351	struct qlcnic_mailbox *mbx;
2352	unsigned long flags;
2353
2354	mbx = adapter->ahw->mailbox;
2355	spin_lock_irqsave(&mbx->aen_lock, flags);
2356	resp = QLCRDX(adapter->ahw, QLCNIC_FW_MBX_CTRL);
2357	if (!(resp & QLCNIC_SET_OWNER))
2358		goto out;
2359
2360	event = readl(QLCNIC_MBX_FW(adapter->ahw, 0));
2361	if (event &  QLCNIC_MBX_ASYNC_EVENT) {
2362		__qlcnic_83xx_process_aen(adapter);
2363	} else {
2364		if (mbx->rsp_status != rsp_status)
2365			qlcnic_83xx_notify_mbx_response(mbx);
2366		else
2367			adapter->stats.mbx_spurious_intr++;
2368	}
2369
2370out:
2371	mask = QLCRDX(adapter->ahw, QLCNIC_DEF_INT_MASK);
2372	writel(0, adapter->ahw->pci_base0 + mask);
2373	spin_unlock_irqrestore(&mbx->aen_lock, flags);
2374	return IRQ_HANDLED;
2375}
2376
2377int qlcnic_83xx_set_nic_info(struct qlcnic_adapter *adapter,
2378			     struct qlcnic_info *nic)
2379{
2380	int i, err = -EIO;
2381	struct qlcnic_cmd_args cmd;
2382
2383	if (adapter->ahw->op_mode != QLCNIC_MGMT_FUNC) {
2384		dev_err(&adapter->pdev->dev,
2385			"%s: Error, invoked by non management func\n",
2386			__func__);
2387		return err;
2388	}
2389
2390	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_SET_NIC_INFO);
2391	if (err)
2392		return err;
2393
2394	cmd.req.arg[1] = (nic->pci_func << 16);
2395	cmd.req.arg[2] = 0x1 << 16;
2396	cmd.req.arg[3] = nic->phys_port | (nic->switch_mode << 16);
2397	cmd.req.arg[4] = nic->capabilities;
2398	cmd.req.arg[5] = (nic->max_mac_filters & 0xFF) | ((nic->max_mtu) << 16);
2399	cmd.req.arg[6] = (nic->max_tx_ques) | ((nic->max_rx_ques) << 16);
2400	cmd.req.arg[7] = (nic->min_tx_bw) | ((nic->max_tx_bw) << 16);
2401	for (i = 8; i < 32; i++)
2402		cmd.req.arg[i] = 0;
2403
2404	err = qlcnic_issue_cmd(adapter, &cmd);
2405
2406	if (err != QLCNIC_RCODE_SUCCESS) {
2407		dev_err(&adapter->pdev->dev, "Failed to set nic info%d\n",
2408			err);
2409		err = -EIO;
2410	}
2411
2412	qlcnic_free_mbx_args(&cmd);
2413
2414	return err;
2415}
2416
2417int qlcnic_83xx_get_nic_info(struct qlcnic_adapter *adapter,
2418			     struct qlcnic_info *npar_info, u8 func_id)
2419{
2420	int err;
2421	u32 temp;
2422	u8 op = 0;
2423	struct qlcnic_cmd_args cmd;
2424	struct qlcnic_hardware_context *ahw = adapter->ahw;
2425
2426	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_NIC_INFO);
2427	if (err)
2428		return err;
2429
2430	if (func_id != ahw->pci_func) {
2431		temp = func_id << 16;
2432		cmd.req.arg[1] = op | BIT_31 | temp;
2433	} else {
2434		cmd.req.arg[1] = ahw->pci_func << 16;
2435	}
2436	err = qlcnic_issue_cmd(adapter, &cmd);
2437	if (err) {
2438		dev_info(&adapter->pdev->dev,
2439			 "Failed to get nic info %d\n", err);
2440		goto out;
2441	}
2442
2443	npar_info->op_type = cmd.rsp.arg[1];
2444	npar_info->pci_func = cmd.rsp.arg[2] & 0xFFFF;
2445	npar_info->op_mode = (cmd.rsp.arg[2] & 0xFFFF0000) >> 16;
2446	npar_info->phys_port = cmd.rsp.arg[3] & 0xFFFF;
2447	npar_info->switch_mode = (cmd.rsp.arg[3] & 0xFFFF0000) >> 16;
2448	npar_info->capabilities = cmd.rsp.arg[4];
2449	npar_info->max_mac_filters = cmd.rsp.arg[5] & 0xFF;
2450	npar_info->max_mtu = (cmd.rsp.arg[5] & 0xFFFF0000) >> 16;
2451	npar_info->max_tx_ques = cmd.rsp.arg[6] & 0xFFFF;
2452	npar_info->max_rx_ques = (cmd.rsp.arg[6] & 0xFFFF0000) >> 16;
2453	npar_info->min_tx_bw = cmd.rsp.arg[7] & 0xFFFF;
2454	npar_info->max_tx_bw = (cmd.rsp.arg[7] & 0xFFFF0000) >> 16;
2455	if (cmd.rsp.arg[8] & 0x1)
2456		npar_info->max_bw_reg_offset = (cmd.rsp.arg[8] & 0x7FFE) >> 1;
2457	if (cmd.rsp.arg[8] & 0x10000) {
2458		temp = (cmd.rsp.arg[8] & 0x7FFE0000) >> 17;
2459		npar_info->max_linkspeed_reg_offset = temp;
2460	}
2461
2462	memcpy(ahw->extra_capability, &cmd.rsp.arg[16],
2463	       sizeof(ahw->extra_capability));
2464
2465out:
2466	qlcnic_free_mbx_args(&cmd);
2467	return err;
2468}
2469
2470int qlcnic_get_pci_func_type(struct qlcnic_adapter *adapter, u16 type,
2471			     u16 *nic, u16 *fcoe, u16 *iscsi)
2472{
2473	struct device *dev = &adapter->pdev->dev;
2474	int err = 0;
2475
2476	switch (type) {
2477	case QLCNIC_TYPE_NIC:
2478		(*nic)++;
2479		break;
2480	case QLCNIC_TYPE_FCOE:
2481		(*fcoe)++;
2482		break;
2483	case QLCNIC_TYPE_ISCSI:
2484		(*iscsi)++;
2485		break;
2486	default:
2487		dev_err(dev, "%s: Unknown PCI type[%x]\n",
2488			__func__, type);
2489		err = -EIO;
2490	}
2491
2492	return err;
2493}
2494
2495int qlcnic_83xx_get_pci_info(struct qlcnic_adapter *adapter,
2496			     struct qlcnic_pci_info *pci_info)
2497{
2498	struct qlcnic_hardware_context *ahw = adapter->ahw;
2499	struct device *dev = &adapter->pdev->dev;
2500	u16 nic = 0, fcoe = 0, iscsi = 0;
2501	struct qlcnic_cmd_args cmd;
2502	int i, err = 0, j = 0;
2503	u32 temp;
2504
2505	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_PCI_INFO);
2506	if (err)
2507		return err;
2508
2509	err = qlcnic_issue_cmd(adapter, &cmd);
2510
2511	ahw->total_nic_func = 0;
2512	if (err == QLCNIC_RCODE_SUCCESS) {
2513		ahw->max_pci_func = cmd.rsp.arg[1] & 0xFF;
2514		for (i = 2, j = 0; j < ahw->max_vnic_func; j++, pci_info++) {
2515			pci_info->id = cmd.rsp.arg[i] & 0xFFFF;
2516			pci_info->active = (cmd.rsp.arg[i] & 0xFFFF0000) >> 16;
2517			i++;
2518			if (!pci_info->active) {
2519				i += QLC_SKIP_INACTIVE_PCI_REGS;
2520				continue;
2521			}
2522			pci_info->type = cmd.rsp.arg[i] & 0xFFFF;
2523			err = qlcnic_get_pci_func_type(adapter, pci_info->type,
2524						       &nic, &fcoe, &iscsi);
2525			temp = (cmd.rsp.arg[i] & 0xFFFF0000) >> 16;
2526			pci_info->default_port = temp;
2527			i++;
2528			pci_info->tx_min_bw = cmd.rsp.arg[i] & 0xFFFF;
2529			temp = (cmd.rsp.arg[i] & 0xFFFF0000) >> 16;
2530			pci_info->tx_max_bw = temp;
2531			i = i + 2;
2532			memcpy(pci_info->mac, &cmd.rsp.arg[i], ETH_ALEN - 2);
2533			i++;
2534			memcpy(pci_info->mac + sizeof(u32), &cmd.rsp.arg[i], 2);
2535			i = i + 3;
2536		}
2537	} else {
2538		dev_err(dev, "Failed to get PCI Info, error = %d\n", err);
2539		err = -EIO;
2540	}
2541
2542	ahw->total_nic_func = nic;
2543	ahw->total_pci_func = nic + fcoe + iscsi;
2544	if (ahw->total_nic_func == 0 || ahw->total_pci_func == 0) {
2545		dev_err(dev, "%s: Invalid function count: total nic func[%x], total pci func[%x]\n",
2546			__func__, ahw->total_nic_func, ahw->total_pci_func);
2547		err = -EIO;
2548	}
2549	qlcnic_free_mbx_args(&cmd);
2550
2551	return err;
2552}
2553
2554int qlcnic_83xx_config_intrpt(struct qlcnic_adapter *adapter, bool op_type)
2555{
2556	int i, index, err;
2557	u8 max_ints;
2558	u32 val, temp, type;
2559	struct qlcnic_cmd_args cmd;
2560
2561	max_ints = adapter->ahw->num_msix - 1;
2562	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_CONFIG_INTRPT);
2563	if (err)
2564		return err;
2565
2566	cmd.req.arg[1] = max_ints;
2567
2568	if (qlcnic_sriov_vf_check(adapter))
2569		cmd.req.arg[1] |= (adapter->ahw->pci_func << 8) | BIT_16;
2570
2571	for (i = 0, index = 2; i < max_ints; i++) {
2572		type = op_type ? QLCNIC_INTRPT_ADD : QLCNIC_INTRPT_DEL;
2573		val = type | (adapter->ahw->intr_tbl[i].type << 4);
2574		if (adapter->ahw->intr_tbl[i].type == QLCNIC_INTRPT_MSIX)
2575			val |= (adapter->ahw->intr_tbl[i].id << 16);
2576		cmd.req.arg[index++] = val;
2577	}
2578	err = qlcnic_issue_cmd(adapter, &cmd);
2579	if (err) {
2580		dev_err(&adapter->pdev->dev,
2581			"Failed to configure interrupts 0x%x\n", err);
2582		goto out;
2583	}
2584
2585	max_ints = cmd.rsp.arg[1];
2586	for (i = 0, index = 2; i < max_ints; i++, index += 2) {
2587		val = cmd.rsp.arg[index];
2588		if (LSB(val)) {
2589			dev_info(&adapter->pdev->dev,
2590				 "Can't configure interrupt %d\n",
2591				 adapter->ahw->intr_tbl[i].id);
2592			continue;
2593		}
2594		if (op_type) {
2595			adapter->ahw->intr_tbl[i].id = MSW(val);
2596			adapter->ahw->intr_tbl[i].enabled = 1;
2597			temp = cmd.rsp.arg[index + 1];
2598			adapter->ahw->intr_tbl[i].src = temp;
2599		} else {
2600			adapter->ahw->intr_tbl[i].id = i;
2601			adapter->ahw->intr_tbl[i].enabled = 0;
2602			adapter->ahw->intr_tbl[i].src = 0;
2603		}
2604	}
2605out:
2606	qlcnic_free_mbx_args(&cmd);
2607	return err;
2608}
2609
2610int qlcnic_83xx_lock_flash(struct qlcnic_adapter *adapter)
2611{
2612	int id, timeout = 0;
2613	u32 status = 0;
2614
2615	while (status == 0) {
2616		status = QLC_SHARED_REG_RD32(adapter, QLCNIC_FLASH_LOCK);
2617		if (status)
2618			break;
2619
2620		if (++timeout >= QLC_83XX_FLASH_LOCK_TIMEOUT) {
2621			id = QLC_SHARED_REG_RD32(adapter,
2622						 QLCNIC_FLASH_LOCK_OWNER);
2623			dev_err(&adapter->pdev->dev,
2624				"%s: failed, lock held by %d\n", __func__, id);
2625			return -EIO;
2626		}
2627		usleep_range(1000, 2000);
2628	}
2629
2630	QLC_SHARED_REG_WR32(adapter, QLCNIC_FLASH_LOCK_OWNER, adapter->portnum);
2631	return 0;
2632}
2633
2634void qlcnic_83xx_unlock_flash(struct qlcnic_adapter *adapter)
2635{
2636	QLC_SHARED_REG_RD32(adapter, QLCNIC_FLASH_UNLOCK);
2637	QLC_SHARED_REG_WR32(adapter, QLCNIC_FLASH_LOCK_OWNER, 0xFF);
2638}
2639
2640int qlcnic_83xx_lockless_flash_read32(struct qlcnic_adapter *adapter,
2641				      u32 flash_addr, u8 *p_data,
2642				      int count)
2643{
2644	u32 word, range, flash_offset, addr = flash_addr, ret;
2645	ulong indirect_add, direct_window;
2646	int i, err = 0;
2647
2648	flash_offset = addr & (QLCNIC_FLASH_SECTOR_SIZE - 1);
2649	if (addr & 0x3) {
2650		dev_err(&adapter->pdev->dev, "Illegal addr = 0x%x\n", addr);
2651		return -EIO;
2652	}
2653
2654	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_DIRECT_WINDOW,
2655				     (addr & 0xFFFF0000));
2656
2657	range = flash_offset + (count * sizeof(u32));
2658	/* Check if data is spread across multiple sectors */
2659	if (range > (QLCNIC_FLASH_SECTOR_SIZE - 1)) {
2660
2661		/* Multi sector read */
2662		for (i = 0; i < count; i++) {
2663			indirect_add = QLC_83XX_FLASH_DIRECT_DATA(addr);
2664			ret = QLCRD32(adapter, indirect_add, &err);
2665			if (err == -EIO)
2666				return err;
2667
2668			word = ret;
2669			*(u32 *)p_data  = word;
2670			p_data = p_data + 4;
2671			addr = addr + 4;
2672			flash_offset = flash_offset + 4;
2673
2674			if (flash_offset > (QLCNIC_FLASH_SECTOR_SIZE - 1)) {
2675				direct_window = QLC_83XX_FLASH_DIRECT_WINDOW;
2676				/* This write is needed once for each sector */
2677				qlcnic_83xx_wrt_reg_indirect(adapter,
2678							     direct_window,
2679							     (addr));
2680				flash_offset = 0;
2681			}
2682		}
2683	} else {
2684		/* Single sector read */
2685		for (i = 0; i < count; i++) {
2686			indirect_add = QLC_83XX_FLASH_DIRECT_DATA(addr);
2687			ret = QLCRD32(adapter, indirect_add, &err);
2688			if (err == -EIO)
2689				return err;
2690
2691			word = ret;
2692			*(u32 *)p_data  = word;
2693			p_data = p_data + 4;
2694			addr = addr + 4;
2695		}
2696	}
2697
2698	return 0;
2699}
2700
2701static int qlcnic_83xx_poll_flash_status_reg(struct qlcnic_adapter *adapter)
2702{
2703	u32 status;
2704	int retries = QLC_83XX_FLASH_READ_RETRY_COUNT;
2705	int err = 0;
2706
2707	do {
2708		status = QLCRD32(adapter, QLC_83XX_FLASH_STATUS, &err);
2709		if (err == -EIO)
2710			return err;
2711
2712		if ((status & QLC_83XX_FLASH_STATUS_READY) ==
2713		    QLC_83XX_FLASH_STATUS_READY)
2714			break;
2715
2716		usleep_range(1000, 1100);
2717	} while (--retries);
2718
2719	if (!retries)
2720		return -EIO;
2721
2722	return 0;
2723}
2724
2725int qlcnic_83xx_enable_flash_write(struct qlcnic_adapter *adapter)
2726{
2727	int ret;
2728	u32 cmd;
2729	cmd = adapter->ahw->fdt.write_statusreg_cmd;
2730	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
2731				     (QLC_83XX_FLASH_FDT_WRITE_DEF_SIG | cmd));
2732	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA,
2733				     adapter->ahw->fdt.write_enable_bits);
2734	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
2735				     QLC_83XX_FLASH_SECOND_ERASE_MS_VAL);
2736	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2737	if (ret)
2738		return -EIO;
2739
2740	return 0;
2741}
2742
2743int qlcnic_83xx_disable_flash_write(struct qlcnic_adapter *adapter)
2744{
2745	int ret;
2746
2747	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
2748				     (QLC_83XX_FLASH_FDT_WRITE_DEF_SIG |
2749				     adapter->ahw->fdt.write_statusreg_cmd));
2750	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA,
2751				     adapter->ahw->fdt.write_disable_bits);
2752	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
2753				     QLC_83XX_FLASH_SECOND_ERASE_MS_VAL);
2754	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2755	if (ret)
2756		return -EIO;
2757
2758	return 0;
2759}
2760
2761int qlcnic_83xx_read_flash_mfg_id(struct qlcnic_adapter *adapter)
2762{
2763	int ret, err = 0;
2764	u32 mfg_id;
2765
2766	if (qlcnic_83xx_lock_flash(adapter))
2767		return -EIO;
2768
2769	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
2770				     QLC_83XX_FLASH_FDT_READ_MFG_ID_VAL);
2771	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
2772				     QLC_83XX_FLASH_READ_CTRL);
2773	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2774	if (ret) {
2775		qlcnic_83xx_unlock_flash(adapter);
2776		return -EIO;
2777	}
2778
2779	mfg_id = QLCRD32(adapter, QLC_83XX_FLASH_RDDATA, &err);
2780	if (err == -EIO) {
2781		qlcnic_83xx_unlock_flash(adapter);
2782		return err;
2783	}
2784
2785	adapter->flash_mfg_id = (mfg_id & 0xFF);
2786	qlcnic_83xx_unlock_flash(adapter);
2787
2788	return 0;
2789}
2790
2791int qlcnic_83xx_read_flash_descriptor_table(struct qlcnic_adapter *adapter)
2792{
2793	int count, fdt_size, ret = 0;
2794
2795	fdt_size = sizeof(struct qlcnic_fdt);
2796	count = fdt_size / sizeof(u32);
2797
2798	if (qlcnic_83xx_lock_flash(adapter))
2799		return -EIO;
2800
2801	memset(&adapter->ahw->fdt, 0, fdt_size);
2802	ret = qlcnic_83xx_lockless_flash_read32(adapter, QLCNIC_FDT_LOCATION,
2803						(u8 *)&adapter->ahw->fdt,
2804						count);
2805	qlcnic_swap32_buffer((u32 *)&adapter->ahw->fdt, count);
2806	qlcnic_83xx_unlock_flash(adapter);
2807	return ret;
2808}
2809
2810int qlcnic_83xx_erase_flash_sector(struct qlcnic_adapter *adapter,
2811				   u32 sector_start_addr)
2812{
2813	u32 reversed_addr, addr1, addr2, cmd;
2814	int ret = -EIO;
2815
2816	if (qlcnic_83xx_lock_flash(adapter) != 0)
2817		return -EIO;
2818
2819	if (adapter->ahw->fdt.mfg_id == adapter->flash_mfg_id) {
2820		ret = qlcnic_83xx_enable_flash_write(adapter);
2821		if (ret) {
2822			qlcnic_83xx_unlock_flash(adapter);
2823			dev_err(&adapter->pdev->dev,
2824				"%s failed at %d\n",
2825				__func__, __LINE__);
2826			return ret;
2827		}
2828	}
2829
2830	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2831	if (ret) {
2832		qlcnic_83xx_unlock_flash(adapter);
2833		dev_err(&adapter->pdev->dev,
2834			"%s: failed at %d\n", __func__, __LINE__);
2835		return -EIO;
2836	}
2837
2838	addr1 = (sector_start_addr & 0xFF) << 16;
2839	addr2 = (sector_start_addr & 0xFF0000) >> 16;
2840	reversed_addr = addr1 | addr2 | (sector_start_addr & 0xFF00);
2841
2842	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA,
2843				     reversed_addr);
2844	cmd = QLC_83XX_FLASH_FDT_ERASE_DEF_SIG | adapter->ahw->fdt.erase_cmd;
2845	if (adapter->ahw->fdt.mfg_id == adapter->flash_mfg_id)
2846		qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR, cmd);
2847	else
2848		qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
2849					     QLC_83XX_FLASH_OEM_ERASE_SIG);
2850	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
2851				     QLC_83XX_FLASH_LAST_ERASE_MS_VAL);
2852
2853	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2854	if (ret) {
2855		qlcnic_83xx_unlock_flash(adapter);
2856		dev_err(&adapter->pdev->dev,
2857			"%s: failed at %d\n", __func__, __LINE__);
2858		return -EIO;
2859	}
2860
2861	if (adapter->ahw->fdt.mfg_id == adapter->flash_mfg_id) {
2862		ret = qlcnic_83xx_disable_flash_write(adapter);
2863		if (ret) {
2864			qlcnic_83xx_unlock_flash(adapter);
2865			dev_err(&adapter->pdev->dev,
2866				"%s: failed at %d\n", __func__, __LINE__);
2867			return ret;
2868		}
2869	}
2870
2871	qlcnic_83xx_unlock_flash(adapter);
2872
2873	return 0;
2874}
2875
2876int qlcnic_83xx_flash_write32(struct qlcnic_adapter *adapter, u32 addr,
2877			      u32 *p_data)
2878{
2879	int ret = -EIO;
2880	u32 addr1 = 0x00800000 | (addr >> 2);
2881
2882	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR, addr1);
2883	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA, *p_data);
2884	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
2885				     QLC_83XX_FLASH_LAST_ERASE_MS_VAL);
2886	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2887	if (ret) {
2888		dev_err(&adapter->pdev->dev,
2889			"%s: failed at %d\n", __func__, __LINE__);
2890		return -EIO;
2891	}
2892
2893	return 0;
2894}
2895
2896int qlcnic_83xx_flash_bulk_write(struct qlcnic_adapter *adapter, u32 addr,
2897				 u32 *p_data, int count)
2898{
2899	u32 temp;
2900	int ret = -EIO, err = 0;
2901
2902	if ((count < QLC_83XX_FLASH_WRITE_MIN) ||
2903	    (count > QLC_83XX_FLASH_WRITE_MAX)) {
2904		dev_err(&adapter->pdev->dev,
2905			"%s: Invalid word count\n", __func__);
2906		return -EIO;
2907	}
2908
2909	temp = QLCRD32(adapter, QLC_83XX_FLASH_SPI_CONTROL, &err);
2910	if (err == -EIO)
2911		return err;
2912
2913	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_SPI_CONTROL,
2914				     (temp | QLC_83XX_FLASH_SPI_CTRL));
2915	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
2916				     QLC_83XX_FLASH_ADDR_TEMP_VAL);
2917
2918	/* First DWORD write */
2919	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA, *p_data++);
2920	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
2921				     QLC_83XX_FLASH_FIRST_MS_PATTERN);
2922	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2923	if (ret) {
2924		dev_err(&adapter->pdev->dev,
2925			"%s: failed at %d\n", __func__, __LINE__);
2926		return -EIO;
2927	}
2928
2929	count--;
2930	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
2931				     QLC_83XX_FLASH_ADDR_SECOND_TEMP_VAL);
2932	/* Second to N-1 DWORD writes */
2933	while (count != 1) {
2934		qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA,
2935					     *p_data++);
2936		qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
2937					     QLC_83XX_FLASH_SECOND_MS_PATTERN);
2938		ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2939		if (ret) {
2940			dev_err(&adapter->pdev->dev,
2941				"%s: failed at %d\n", __func__, __LINE__);
2942			return -EIO;
2943		}
2944		count--;
2945	}
2946
2947	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
2948				     QLC_83XX_FLASH_ADDR_TEMP_VAL |
2949				     (addr >> 2));
2950	/* Last DWORD write */
2951	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_WRDATA, *p_data++);
2952	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
2953				     QLC_83XX_FLASH_LAST_MS_PATTERN);
2954	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
2955	if (ret) {
2956		dev_err(&adapter->pdev->dev,
2957			"%s: failed at %d\n", __func__, __LINE__);
2958		return -EIO;
2959	}
2960
2961	ret = QLCRD32(adapter, QLC_83XX_FLASH_SPI_STATUS, &err);
2962	if (err == -EIO)
2963		return err;
2964
2965	if ((ret & QLC_83XX_FLASH_SPI_CTRL) == QLC_83XX_FLASH_SPI_CTRL) {
2966		dev_err(&adapter->pdev->dev, "%s: failed at %d\n",
2967			__func__, __LINE__);
2968		/* Operation failed, clear error bit */
2969		temp = QLCRD32(adapter, QLC_83XX_FLASH_SPI_CONTROL, &err);
2970		if (err == -EIO)
2971			return err;
2972
2973		qlcnic_83xx_wrt_reg_indirect(adapter,
2974					     QLC_83XX_FLASH_SPI_CONTROL,
2975					     (temp | QLC_83XX_FLASH_SPI_CTRL));
2976	}
2977
2978	return 0;
2979}
2980
2981static void qlcnic_83xx_recover_driver_lock(struct qlcnic_adapter *adapter)
2982{
2983	u32 val, id;
2984
2985	val = QLCRDX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK);
2986
2987	/* Check if recovery need to be performed by the calling function */
2988	if ((val & QLC_83XX_DRV_LOCK_RECOVERY_STATUS_MASK) == 0) {
2989		val = val & ~0x3F;
2990		val = val | ((adapter->portnum << 2) |
2991			     QLC_83XX_NEED_DRV_LOCK_RECOVERY);
2992		QLCWRX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK, val);
2993		dev_info(&adapter->pdev->dev,
2994			 "%s: lock recovery initiated\n", __func__);
2995		mdelay(QLC_83XX_DRV_LOCK_RECOVERY_DELAY);
2996		val = QLCRDX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK);
2997		id = ((val >> 2) & 0xF);
2998		if (id == adapter->portnum) {
2999			val = val & ~QLC_83XX_DRV_LOCK_RECOVERY_STATUS_MASK;
3000			val = val | QLC_83XX_DRV_LOCK_RECOVERY_IN_PROGRESS;
3001			QLCWRX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK, val);
3002			/* Force release the lock */
3003			QLCRDX(adapter->ahw, QLC_83XX_DRV_UNLOCK);
3004			/* Clear recovery bits */
3005			val = val & ~0x3F;
3006			QLCWRX(adapter->ahw, QLC_83XX_RECOVER_DRV_LOCK, val);
3007			dev_info(&adapter->pdev->dev,
3008				 "%s: lock recovery completed\n", __func__);
3009		} else {
3010			dev_info(&adapter->pdev->dev,
3011				 "%s: func %d to resume lock recovery process\n",
3012				 __func__, id);
3013		}
3014	} else {
3015		dev_info(&adapter->pdev->dev,
3016			 "%s: lock recovery initiated by other functions\n",
3017			 __func__);
3018	}
3019}
3020
3021int qlcnic_83xx_lock_driver(struct qlcnic_adapter *adapter)
3022{
3023	u32 lock_alive_counter, val, id, i = 0, status = 0, temp = 0;
3024	int max_attempt = 0;
3025
3026	while (status == 0) {
3027		status = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK);
3028		if (status)
3029			break;
3030
3031		mdelay(QLC_83XX_DRV_LOCK_WAIT_DELAY);
3032		i++;
3033
3034		if (i == 1)
3035			temp = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
3036
3037		if (i == QLC_83XX_DRV_LOCK_WAIT_COUNTER) {
3038			val = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
3039			if (val == temp) {
3040				id = val & 0xFF;
3041				dev_info(&adapter->pdev->dev,
3042					 "%s: lock to be recovered from %d\n",
3043					 __func__, id);
3044				qlcnic_83xx_recover_driver_lock(adapter);
3045				i = 0;
3046				max_attempt++;
3047			} else {
3048				dev_err(&adapter->pdev->dev,
3049					"%s: failed to get lock\n", __func__);
3050				return -EIO;
3051			}
3052		}
3053
3054		/* Force exit from while loop after few attempts */
3055		if (max_attempt == QLC_83XX_MAX_DRV_LOCK_RECOVERY_ATTEMPT) {
3056			dev_err(&adapter->pdev->dev,
3057				"%s: failed to get lock\n", __func__);
3058			return -EIO;
3059		}
3060	}
3061
3062	val = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
3063	lock_alive_counter = val >> 8;
3064	lock_alive_counter++;
3065	val = lock_alive_counter << 8 | adapter->portnum;
3066	QLCWRX(adapter->ahw, QLC_83XX_DRV_LOCK_ID, val);
3067
3068	return 0;
3069}
3070
3071void qlcnic_83xx_unlock_driver(struct qlcnic_adapter *adapter)
3072{
3073	u32 val, lock_alive_counter, id;
3074
3075	val = QLCRDX(adapter->ahw, QLC_83XX_DRV_LOCK_ID);
3076	id = val & 0xFF;
3077	lock_alive_counter = val >> 8;
3078
3079	if (id != adapter->portnum)
3080		dev_err(&adapter->pdev->dev,
3081			"%s:Warning func %d is unlocking lock owned by %d\n",
3082			__func__, adapter->portnum, id);
3083
3084	val = (lock_alive_counter << 8) | 0xFF;
3085	QLCWRX(adapter->ahw, QLC_83XX_DRV_LOCK_ID, val);
3086	QLCRDX(adapter->ahw, QLC_83XX_DRV_UNLOCK);
3087}
3088
3089int qlcnic_ms_mem_write128(struct qlcnic_adapter *adapter, u64 addr,
3090				u32 *data, u32 count)
3091{
3092	int i, j, ret = 0;
3093	u32 temp;
3094
3095	/* Check alignment */
3096	if (addr & 0xF)
3097		return -EIO;
3098
3099	mutex_lock(&adapter->ahw->mem_lock);
3100	qlcnic_ind_wr(adapter, QLCNIC_MS_ADDR_HI, 0);
3101
3102	for (i = 0; i < count; i++, addr += 16) {
3103		if (!((ADDR_IN_RANGE(addr, QLCNIC_ADDR_QDR_NET,
3104				     QLCNIC_ADDR_QDR_NET_MAX)) ||
3105		      (ADDR_IN_RANGE(addr, QLCNIC_ADDR_DDR_NET,
3106				     QLCNIC_ADDR_DDR_NET_MAX)))) {
3107			mutex_unlock(&adapter->ahw->mem_lock);
3108			return -EIO;
3109		}
3110
3111		qlcnic_ind_wr(adapter, QLCNIC_MS_ADDR_LO, addr);
3112		qlcnic_ind_wr(adapter, QLCNIC_MS_WRTDATA_LO, *data++);
3113		qlcnic_ind_wr(adapter, QLCNIC_MS_WRTDATA_HI, *data++);
3114		qlcnic_ind_wr(adapter, QLCNIC_MS_WRTDATA_ULO, *data++);
3115		qlcnic_ind_wr(adapter, QLCNIC_MS_WRTDATA_UHI, *data++);
3116		qlcnic_ind_wr(adapter, QLCNIC_MS_CTRL, QLCNIC_TA_WRITE_ENABLE);
3117		qlcnic_ind_wr(adapter, QLCNIC_MS_CTRL, QLCNIC_TA_WRITE_START);
3118
3119		for (j = 0; j < MAX_CTL_CHECK; j++) {
3120			temp = qlcnic_ind_rd(adapter, QLCNIC_MS_CTRL);
3121
3122			if ((temp & TA_CTL_BUSY) == 0)
3123				break;
3124		}
3125
3126		/* Status check failure */
3127		if (j >= MAX_CTL_CHECK) {
3128			printk_ratelimited(KERN_WARNING
3129					   "MS memory write failed\n");
3130			mutex_unlock(&adapter->ahw->mem_lock);
3131			return -EIO;
3132		}
3133	}
3134
3135	mutex_unlock(&adapter->ahw->mem_lock);
3136
3137	return ret;
3138}
3139
3140int qlcnic_83xx_flash_read32(struct qlcnic_adapter *adapter, u32 flash_addr,
3141			     u8 *p_data, int count)
3142{
3143	u32 word, addr = flash_addr, ret;
3144	ulong  indirect_addr;
3145	int i, err = 0;
3146
3147	if (qlcnic_83xx_lock_flash(adapter) != 0)
3148		return -EIO;
3149
3150	if (addr & 0x3) {
3151		dev_err(&adapter->pdev->dev, "Illegal addr = 0x%x\n", addr);
3152		qlcnic_83xx_unlock_flash(adapter);
3153		return -EIO;
3154	}
3155
3156	for (i = 0; i < count; i++) {
3157		if (qlcnic_83xx_wrt_reg_indirect(adapter,
3158						 QLC_83XX_FLASH_DIRECT_WINDOW,
3159						 (addr))) {
3160			qlcnic_83xx_unlock_flash(adapter);
3161			return -EIO;
3162		}
3163
3164		indirect_addr = QLC_83XX_FLASH_DIRECT_DATA(addr);
3165		ret = QLCRD32(adapter, indirect_addr, &err);
3166		if (err == -EIO) {
3167			qlcnic_83xx_unlock_flash(adapter);
3168			return err;
3169		}
3170
3171		word = ret;
3172		*(u32 *)p_data  = word;
3173		p_data = p_data + 4;
3174		addr = addr + 4;
3175	}
3176
3177	qlcnic_83xx_unlock_flash(adapter);
3178
3179	return 0;
3180}
3181
3182void qlcnic_83xx_get_port_type(struct qlcnic_adapter *adapter)
3183{
3184	struct qlcnic_hardware_context *ahw = adapter->ahw;
3185	struct qlcnic_cmd_args cmd;
3186	u32 config;
3187	int err;
3188
3189	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_LINK_STATUS);
3190	if (err)
3191		return;
3192
3193	err = qlcnic_issue_cmd(adapter, &cmd);
3194	if (err) {
3195		dev_info(&adapter->pdev->dev,
3196			 "Get Link Status Command failed: 0x%x\n", err);
3197		goto out;
3198	} else {
3199		config = cmd.rsp.arg[3];
3200
3201		switch (QLC_83XX_SFP_MODULE_TYPE(config)) {
3202		case QLC_83XX_MODULE_FIBRE_1000BASE_SX:
3203		case QLC_83XX_MODULE_FIBRE_1000BASE_LX:
3204		case QLC_83XX_MODULE_FIBRE_1000BASE_CX:
3205		case QLC_83XX_MODULE_TP_1000BASE_T:
3206			ahw->port_type = QLCNIC_GBE;
3207			break;
3208		default:
3209			ahw->port_type = QLCNIC_XGBE;
3210		}
3211	}
3212out:
3213	qlcnic_free_mbx_args(&cmd);
3214}
3215
3216int qlcnic_83xx_test_link(struct qlcnic_adapter *adapter)
3217{
3218	u8 pci_func;
3219	int err;
3220	u32 config = 0, state;
3221	struct qlcnic_cmd_args cmd;
3222	struct qlcnic_hardware_context *ahw = adapter->ahw;
3223
3224	if (qlcnic_sriov_vf_check(adapter))
3225		pci_func = adapter->portnum;
3226	else
3227		pci_func = ahw->pci_func;
3228
3229	state = readl(ahw->pci_base0 + QLC_83XX_LINK_STATE(pci_func));
3230	if (!QLC_83xx_FUNC_VAL(state, pci_func)) {
3231		dev_info(&adapter->pdev->dev, "link state down\n");
3232		return config;
3233	}
3234
3235	err = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_LINK_STATUS);
3236	if (err)
3237		return err;
3238
3239	err = qlcnic_issue_cmd(adapter, &cmd);
3240	if (err) {
3241		dev_info(&adapter->pdev->dev,
3242			 "Get Link Status Command failed: 0x%x\n", err);
3243		goto out;
3244	} else {
3245		config = cmd.rsp.arg[1];
3246		switch (QLC_83XX_CURRENT_LINK_SPEED(config)) {
3247		case QLC_83XX_10M_LINK:
3248			ahw->link_speed = SPEED_10;
3249			break;
3250		case QLC_83XX_100M_LINK:
3251			ahw->link_speed = SPEED_100;
3252			break;
3253		case QLC_83XX_1G_LINK:
3254			ahw->link_speed = SPEED_1000;
3255			break;
3256		case QLC_83XX_10G_LINK:
3257			ahw->link_speed = SPEED_10000;
3258			break;
3259		default:
3260			ahw->link_speed = 0;
3261			break;
3262		}
3263		config = cmd.rsp.arg[3];
3264		switch (QLC_83XX_SFP_MODULE_TYPE(config)) {
3265		case QLC_83XX_MODULE_FIBRE_10GBASE_LRM:
3266		case QLC_83XX_MODULE_FIBRE_10GBASE_LR:
3267		case QLC_83XX_MODULE_FIBRE_10GBASE_SR:
3268			ahw->supported_type = PORT_FIBRE;
3269			ahw->port_type = QLCNIC_XGBE;
3270			break;
3271		case QLC_83XX_MODULE_FIBRE_1000BASE_SX:
3272		case QLC_83XX_MODULE_FIBRE_1000BASE_LX:
3273		case QLC_83XX_MODULE_FIBRE_1000BASE_CX:
3274			ahw->supported_type = PORT_FIBRE;
3275			ahw->port_type = QLCNIC_GBE;
3276			break;
3277		case QLC_83XX_MODULE_TP_1000BASE_T:
3278			ahw->supported_type = PORT_TP;
3279			ahw->port_type = QLCNIC_GBE;
3280			break;
3281		case QLC_83XX_MODULE_DA_10GE_PASSIVE_CP:
3282		case QLC_83XX_MODULE_DA_10GE_ACTIVE_CP:
3283		case QLC_83XX_MODULE_DA_10GE_LEGACY_CP:
3284		case QLC_83XX_MODULE_DA_1GE_PASSIVE_CP:
3285			ahw->supported_type = PORT_DA;
3286			ahw->port_type = QLCNIC_XGBE;
3287			break;
3288		default:
3289			ahw->supported_type = PORT_OTHER;
3290			ahw->port_type = QLCNIC_XGBE;
3291		}
3292		if (config & 1)
3293			err = 1;
3294	}
3295out:
3296	qlcnic_free_mbx_args(&cmd);
3297	return config;
3298}
3299
3300int qlcnic_83xx_get_link_ksettings(struct qlcnic_adapter *adapter,
3301				   struct ethtool_link_ksettings *ecmd)
3302{
3303	struct qlcnic_hardware_context *ahw = adapter->ahw;
3304	u32 config = 0;
3305	int status = 0;
3306	u32 supported, advertising;
3307
3308	if (!test_bit(__QLCNIC_MAINTENANCE_MODE, &adapter->state)) {
3309		/* Get port configuration info */
3310		status = qlcnic_83xx_get_port_info(adapter);
3311		/* Get Link Status related info */
3312		config = qlcnic_83xx_test_link(adapter);
3313		ahw->module_type = QLC_83XX_SFP_MODULE_TYPE(config);
3314	}
3315
3316	/* hard code until there is a way to get it from flash */
3317	ahw->board_type = QLCNIC_BRDTYPE_83XX_10G;
3318
3319	if (netif_running(adapter->netdev) && ahw->has_link_events) {
3320		ecmd->base.speed = ahw->link_speed;
3321		ecmd->base.duplex = ahw->link_duplex;
3322		ecmd->base.autoneg = ahw->link_autoneg;
3323	} else {
3324		ecmd->base.speed = SPEED_UNKNOWN;
3325		ecmd->base.duplex = DUPLEX_UNKNOWN;
3326		ecmd->base.autoneg = AUTONEG_DISABLE;
3327	}
3328
3329	supported = (SUPPORTED_10baseT_Full |
3330			   SUPPORTED_100baseT_Full |
3331			   SUPPORTED_1000baseT_Full |
3332			   SUPPORTED_10000baseT_Full |
3333			   SUPPORTED_Autoneg);
3334
3335	ethtool_convert_link_mode_to_legacy_u32(&advertising,
3336						ecmd->link_modes.advertising);
3337
3338	if (ecmd->base.autoneg == AUTONEG_ENABLE) {
3339		if (ahw->port_config & QLC_83XX_10_CAPABLE)
3340			advertising |= SUPPORTED_10baseT_Full;
3341		if (ahw->port_config & QLC_83XX_100_CAPABLE)
3342			advertising |= SUPPORTED_100baseT_Full;
3343		if (ahw->port_config & QLC_83XX_1G_CAPABLE)
3344			advertising |= SUPPORTED_1000baseT_Full;
3345		if (ahw->port_config & QLC_83XX_10G_CAPABLE)
3346			advertising |= SUPPORTED_10000baseT_Full;
3347		if (ahw->port_config & QLC_83XX_AUTONEG_ENABLE)
3348			advertising |= ADVERTISED_Autoneg;
3349	} else {
3350		switch (ahw->link_speed) {
3351		case SPEED_10:
3352			advertising = SUPPORTED_10baseT_Full;
3353			break;
3354		case SPEED_100:
3355			advertising = SUPPORTED_100baseT_Full;
3356			break;
3357		case SPEED_1000:
3358			advertising = SUPPORTED_1000baseT_Full;
3359			break;
3360		case SPEED_10000:
3361			advertising = SUPPORTED_10000baseT_Full;
3362			break;
3363		default:
3364			break;
3365		}
3366
3367	}
3368
3369	switch (ahw->supported_type) {
3370	case PORT_FIBRE:
3371		supported |= SUPPORTED_FIBRE;
3372		advertising |= ADVERTISED_FIBRE;
3373		ecmd->base.port = PORT_FIBRE;
3374		break;
3375	case PORT_TP:
3376		supported |= SUPPORTED_TP;
3377		advertising |= ADVERTISED_TP;
3378		ecmd->base.port = PORT_TP;
3379		break;
3380	case PORT_DA:
3381		supported |= SUPPORTED_FIBRE;
3382		advertising |= ADVERTISED_FIBRE;
3383		ecmd->base.port = PORT_DA;
3384		break;
3385	default:
3386		supported |= SUPPORTED_FIBRE;
3387		advertising |= ADVERTISED_FIBRE;
3388		ecmd->base.port = PORT_OTHER;
3389		break;
3390	}
3391	ecmd->base.phy_address = ahw->physical_port;
3392
3393	ethtool_convert_legacy_u32_to_link_mode(ecmd->link_modes.supported,
3394						supported);
3395	ethtool_convert_legacy_u32_to_link_mode(ecmd->link_modes.advertising,
3396						advertising);
3397
3398	return status;
3399}
3400
3401int qlcnic_83xx_set_link_ksettings(struct qlcnic_adapter *adapter,
3402				   const struct ethtool_link_ksettings *ecmd)
3403{
3404	struct qlcnic_hardware_context *ahw = adapter->ahw;
3405	u32 config = adapter->ahw->port_config;
3406	int status = 0;
3407
3408	/* 83xx devices do not support Half duplex */
3409	if (ecmd->base.duplex == DUPLEX_HALF) {
3410		netdev_info(adapter->netdev,
3411			    "Half duplex mode not supported\n");
3412		return -EINVAL;
3413	}
3414
3415	if (ecmd->base.autoneg) {
3416		ahw->port_config |= QLC_83XX_AUTONEG_ENABLE;
3417		ahw->port_config |= (QLC_83XX_100_CAPABLE |
3418				     QLC_83XX_1G_CAPABLE |
3419				     QLC_83XX_10G_CAPABLE);
3420	} else { /* force speed */
3421		ahw->port_config &= ~QLC_83XX_AUTONEG_ENABLE;
3422		switch (ecmd->base.speed) {
3423		case SPEED_10:
3424			ahw->port_config &= ~(QLC_83XX_100_CAPABLE |
3425					      QLC_83XX_1G_CAPABLE |
3426					      QLC_83XX_10G_CAPABLE);
3427			ahw->port_config |= QLC_83XX_10_CAPABLE;
3428			break;
3429		case SPEED_100:
3430			ahw->port_config &= ~(QLC_83XX_10_CAPABLE |
3431					      QLC_83XX_1G_CAPABLE |
3432					      QLC_83XX_10G_CAPABLE);
3433			ahw->port_config |= QLC_83XX_100_CAPABLE;
3434			break;
3435		case SPEED_1000:
3436			ahw->port_config &= ~(QLC_83XX_10_CAPABLE |
3437					      QLC_83XX_100_CAPABLE |
3438					      QLC_83XX_10G_CAPABLE);
3439			ahw->port_config |= QLC_83XX_1G_CAPABLE;
3440			break;
3441		case SPEED_10000:
3442			ahw->port_config &= ~(QLC_83XX_10_CAPABLE |
3443					      QLC_83XX_100_CAPABLE |
3444					      QLC_83XX_1G_CAPABLE);
3445			ahw->port_config |= QLC_83XX_10G_CAPABLE;
3446			break;
3447		default:
3448			return -EINVAL;
3449		}
3450	}
3451	status = qlcnic_83xx_set_port_config(adapter);
3452	if (status) {
3453		netdev_info(adapter->netdev,
3454			    "Failed to Set Link Speed and autoneg.\n");
3455		ahw->port_config = config;
3456	}
3457
3458	return status;
3459}
3460
3461static inline u64 *qlcnic_83xx_copy_stats(struct qlcnic_cmd_args *cmd,
3462					  u64 *data, int index)
3463{
3464	u32 low, hi;
3465	u64 val;
3466
3467	low = cmd->rsp.arg[index];
3468	hi = cmd->rsp.arg[index + 1];
3469	val = (((u64) low) | (((u64) hi) << 32));
3470	*data++ = val;
3471	return data;
3472}
3473
3474static u64 *qlcnic_83xx_fill_stats(struct qlcnic_adapter *adapter,
3475				   struct qlcnic_cmd_args *cmd, u64 *data,
3476				   int type, int *ret)
3477{
3478	int err, k, total_regs;
3479
3480	*ret = 0;
3481	err = qlcnic_issue_cmd(adapter, cmd);
3482	if (err != QLCNIC_RCODE_SUCCESS) {
3483		dev_info(&adapter->pdev->dev,
3484			 "Error in get statistics mailbox command\n");
3485		*ret = -EIO;
3486		return data;
3487	}
3488	total_regs = cmd->rsp.num;
3489	switch (type) {
3490	case QLC_83XX_STAT_MAC:
3491		/* fill in MAC tx counters */
3492		for (k = 2; k < 28; k += 2)
3493			data = qlcnic_83xx_copy_stats(cmd, data, k);
3494		/* skip 24 bytes of reserved area */
3495		/* fill in MAC rx counters */
3496		for (k += 6; k < 60; k += 2)
3497			data = qlcnic_83xx_copy_stats(cmd, data, k);
3498		/* skip 24 bytes of reserved area */
3499		/* fill in MAC rx frame stats */
3500		for (k += 6; k < 80; k += 2)
3501			data = qlcnic_83xx_copy_stats(cmd, data, k);
3502		/* fill in eSwitch stats */
3503		for (; k < total_regs; k += 2)
3504			data = qlcnic_83xx_copy_stats(cmd, data, k);
3505		break;
3506	case QLC_83XX_STAT_RX:
3507		for (k = 2; k < 8; k += 2)
3508			data = qlcnic_83xx_copy_stats(cmd, data, k);
3509		/* skip 8 bytes of reserved data */
3510		for (k += 2; k < 24; k += 2)
3511			data = qlcnic_83xx_copy_stats(cmd, data, k);
3512		/* skip 8 bytes containing RE1FBQ error data */
3513		for (k += 2; k < total_regs; k += 2)
3514			data = qlcnic_83xx_copy_stats(cmd, data, k);
3515		break;
3516	case QLC_83XX_STAT_TX:
3517		for (k = 2; k < 10; k += 2)
3518			data = qlcnic_83xx_copy_stats(cmd, data, k);
3519		/* skip 8 bytes of reserved data */
3520		for (k += 2; k < total_regs; k += 2)
3521			data = qlcnic_83xx_copy_stats(cmd, data, k);
3522		break;
3523	default:
3524		dev_warn(&adapter->pdev->dev, "Unknown get statistics mode\n");
3525		*ret = -EIO;
3526	}
3527	return data;
3528}
3529
3530void qlcnic_83xx_get_stats(struct qlcnic_adapter *adapter, u64 *data)
3531{
3532	struct qlcnic_cmd_args cmd;
3533	struct net_device *netdev = adapter->netdev;
3534	int ret = 0;
3535
3536	ret = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_GET_STATISTICS);
3537	if (ret)
3538		return;
3539	/* Get Tx stats */
3540	cmd.req.arg[1] = BIT_1 | (adapter->tx_ring->ctx_id << 16);
3541	cmd.rsp.num = QLC_83XX_TX_STAT_REGS;
3542	data = qlcnic_83xx_fill_stats(adapter, &cmd, data,
3543				      QLC_83XX_STAT_TX, &ret);
3544	if (ret) {
3545		netdev_err(netdev, "Error getting Tx stats\n");
3546		goto out;
3547	}
3548	/* Get MAC stats */
3549	cmd.req.arg[1] = BIT_2 | (adapter->portnum << 16);
3550	cmd.rsp.num = QLC_83XX_MAC_STAT_REGS;
3551	memset(cmd.rsp.arg, 0, sizeof(u32) * cmd.rsp.num);
3552	data = qlcnic_83xx_fill_stats(adapter, &cmd, data,
3553				      QLC_83XX_STAT_MAC, &ret);
3554	if (ret) {
3555		netdev_err(netdev, "Error getting MAC stats\n");
3556		goto out;
3557	}
3558	/* Get Rx stats */
3559	cmd.req.arg[1] = adapter->recv_ctx->context_id << 16;
3560	cmd.rsp.num = QLC_83XX_RX_STAT_REGS;
3561	memset(cmd.rsp.arg, 0, sizeof(u32) * cmd.rsp.num);
3562	data = qlcnic_83xx_fill_stats(adapter, &cmd, data,
3563				      QLC_83XX_STAT_RX, &ret);
3564	if (ret)
3565		netdev_err(netdev, "Error getting Rx stats\n");
3566out:
3567	qlcnic_free_mbx_args(&cmd);
3568}
3569
3570#define QLCNIC_83XX_ADD_PORT0		BIT_0
3571#define QLCNIC_83XX_ADD_PORT1		BIT_1
3572#define QLCNIC_83XX_EXTENDED_MEM_SIZE	13 /* In MB */
3573int qlcnic_83xx_extend_md_capab(struct qlcnic_adapter *adapter)
3574{
3575	struct qlcnic_cmd_args cmd;
3576	int err;
3577
3578	err = qlcnic_alloc_mbx_args(&cmd, adapter,
3579				    QLCNIC_CMD_83XX_EXTEND_ISCSI_DUMP_CAP);
3580	if (err)
3581		return err;
3582
3583	cmd.req.arg[1] = (QLCNIC_83XX_ADD_PORT0 | QLCNIC_83XX_ADD_PORT1);
3584	cmd.req.arg[2] = QLCNIC_83XX_EXTENDED_MEM_SIZE;
3585	cmd.req.arg[3] = QLCNIC_83XX_EXTENDED_MEM_SIZE;
3586
3587	err = qlcnic_issue_cmd(adapter, &cmd);
3588	if (err)
3589		dev_err(&adapter->pdev->dev,
3590			"failed to issue extend iSCSI minidump capability\n");
3591
3592	return err;
3593}
3594
3595int qlcnic_83xx_reg_test(struct qlcnic_adapter *adapter)
3596{
3597	u32 major, minor, sub;
3598
3599	major = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MAJOR);
3600	minor = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_MINOR);
3601	sub = QLC_SHARED_REG_RD32(adapter, QLCNIC_FW_VERSION_SUB);
3602
3603	if (adapter->fw_version != QLCNIC_VERSION_CODE(major, minor, sub)) {
3604		dev_info(&adapter->pdev->dev, "%s: Reg test failed\n",
3605			 __func__);
3606		return 1;
3607	}
3608	return 0;
3609}
3610
3611inline int qlcnic_83xx_get_regs_len(struct qlcnic_adapter *adapter)
3612{
3613	return (ARRAY_SIZE(qlcnic_83xx_ext_reg_tbl) *
3614		sizeof(*adapter->ahw->ext_reg_tbl)) +
3615		(ARRAY_SIZE(qlcnic_83xx_reg_tbl) *
3616		sizeof(*adapter->ahw->reg_tbl));
3617}
3618
3619int qlcnic_83xx_get_registers(struct qlcnic_adapter *adapter, u32 *regs_buff)
3620{
3621	int i, j = 0;
3622
3623	for (i = QLCNIC_DEV_INFO_SIZE + 1;
3624	     j < ARRAY_SIZE(qlcnic_83xx_reg_tbl); i++, j++)
3625		regs_buff[i] = QLC_SHARED_REG_RD32(adapter, j);
3626
3627	for (j = 0; j < ARRAY_SIZE(qlcnic_83xx_ext_reg_tbl); j++)
3628		regs_buff[i++] = QLCRDX(adapter->ahw, j);
3629	return i;
3630}
3631
3632int qlcnic_83xx_interrupt_test(struct net_device *netdev)
3633{
3634	struct qlcnic_adapter *adapter = netdev_priv(netdev);
3635	struct qlcnic_hardware_context *ahw = adapter->ahw;
3636	struct qlcnic_cmd_args cmd;
3637	u8 val, drv_sds_rings = adapter->drv_sds_rings;
3638	u8 drv_tx_rings = adapter->drv_tx_rings;
3639	u32 data;
3640	u16 intrpt_id, id;
3641	int ret;
3642
3643	if (test_bit(__QLCNIC_RESETTING, &adapter->state)) {
3644		netdev_info(netdev, "Device is resetting\n");
3645		return -EBUSY;
3646	}
3647
3648	if (qlcnic_get_diag_lock(adapter)) {
3649		netdev_info(netdev, "Device in diagnostics mode\n");
3650		return -EBUSY;
3651	}
3652
3653	ret = qlcnic_83xx_diag_alloc_res(netdev, QLCNIC_INTERRUPT_TEST,
3654					 drv_sds_rings);
3655	if (ret)
3656		goto fail_diag_irq;
3657
3658	ahw->diag_cnt = 0;
3659	ret = qlcnic_alloc_mbx_args(&cmd, adapter, QLCNIC_CMD_INTRPT_TEST);
3660	if (ret)
3661		goto fail_mbx_args;
3662
3663	if (adapter->flags & QLCNIC_MSIX_ENABLED)
3664		intrpt_id = ahw->intr_tbl[0].id;
3665	else
3666		intrpt_id = QLCRDX(ahw, QLCNIC_DEF_INT_ID);
3667
3668	cmd.req.arg[1] = 1;
3669	cmd.req.arg[2] = intrpt_id;
3670	cmd.req.arg[3] = BIT_0;
3671
3672	ret = qlcnic_issue_cmd(adapter, &cmd);
3673	data = cmd.rsp.arg[2];
3674	id = LSW(data);
3675	val = LSB(MSW(data));
3676	if (id != intrpt_id)
3677		dev_info(&adapter->pdev->dev,
3678			 "Interrupt generated: 0x%x, requested:0x%x\n",
3679			 id, intrpt_id);
3680	if (val)
3681		dev_err(&adapter->pdev->dev,
3682			 "Interrupt test error: 0x%x\n", val);
3683	if (ret)
3684		goto done;
3685
3686	msleep(20);
3687	ret = !ahw->diag_cnt;
3688
3689done:
3690	qlcnic_free_mbx_args(&cmd);
3691
3692fail_mbx_args:
3693	qlcnic_83xx_diag_free_res(netdev, drv_sds_rings);
3694
3695fail_diag_irq:
3696	adapter->drv_sds_rings = drv_sds_rings;
3697	adapter->drv_tx_rings = drv_tx_rings;
3698	qlcnic_release_diag_lock(adapter);
3699	return ret;
3700}
3701
3702void qlcnic_83xx_get_pauseparam(struct qlcnic_adapter *adapter,
3703				struct ethtool_pauseparam *pause)
3704{
3705	struct qlcnic_hardware_context *ahw = adapter->ahw;
3706	int status = 0;
3707	u32 config;
3708
3709	status = qlcnic_83xx_get_port_config(adapter);
3710	if (status) {
3711		dev_err(&adapter->pdev->dev,
3712			"%s: Get Pause Config failed\n", __func__);
3713		return;
3714	}
3715	config = ahw->port_config;
3716	if (config & QLC_83XX_CFG_STD_PAUSE) {
3717		switch (MSW(config)) {
3718		case QLC_83XX_TX_PAUSE:
3719			pause->tx_pause = 1;
3720			break;
3721		case QLC_83XX_RX_PAUSE:
3722			pause->rx_pause = 1;
3723			break;
3724		case QLC_83XX_TX_RX_PAUSE:
3725		default:
3726			/* Backward compatibility for existing
3727			 * flash definitions
3728			 */
3729			pause->tx_pause = 1;
3730			pause->rx_pause = 1;
3731		}
3732	}
3733
3734	if (QLC_83XX_AUTONEG(config))
3735		pause->autoneg = 1;
3736}
3737
3738int qlcnic_83xx_set_pauseparam(struct qlcnic_adapter *adapter,
3739			       struct ethtool_pauseparam *pause)
3740{
3741	struct qlcnic_hardware_context *ahw = adapter->ahw;
3742	int status = 0;
3743	u32 config;
3744
3745	status = qlcnic_83xx_get_port_config(adapter);
3746	if (status) {
3747		dev_err(&adapter->pdev->dev,
3748			"%s: Get Pause Config failed.\n", __func__);
3749		return status;
3750	}
3751	config = ahw->port_config;
3752
3753	if (ahw->port_type == QLCNIC_GBE) {
3754		if (pause->autoneg)
3755			ahw->port_config |= QLC_83XX_ENABLE_AUTONEG;
3756		if (!pause->autoneg)
3757			ahw->port_config &= ~QLC_83XX_ENABLE_AUTONEG;
3758	} else if ((ahw->port_type == QLCNIC_XGBE) && (pause->autoneg)) {
3759		return -EOPNOTSUPP;
3760	}
3761
3762	if (!(config & QLC_83XX_CFG_STD_PAUSE))
3763		ahw->port_config |= QLC_83XX_CFG_STD_PAUSE;
3764
3765	if (pause->rx_pause && pause->tx_pause) {
3766		ahw->port_config |= QLC_83XX_CFG_STD_TX_RX_PAUSE;
3767	} else if (pause->rx_pause && !pause->tx_pause) {
3768		ahw->port_config &= ~QLC_83XX_CFG_STD_TX_PAUSE;
3769		ahw->port_config |= QLC_83XX_CFG_STD_RX_PAUSE;
3770	} else if (pause->tx_pause && !pause->rx_pause) {
3771		ahw->port_config &= ~QLC_83XX_CFG_STD_RX_PAUSE;
3772		ahw->port_config |= QLC_83XX_CFG_STD_TX_PAUSE;
3773	} else if (!pause->rx_pause && !pause->tx_pause) {
3774		ahw->port_config &= ~(QLC_83XX_CFG_STD_TX_RX_PAUSE |
3775				      QLC_83XX_CFG_STD_PAUSE);
3776	}
3777	status = qlcnic_83xx_set_port_config(adapter);
3778	if (status) {
3779		dev_err(&adapter->pdev->dev,
3780			"%s: Set Pause Config failed.\n", __func__);
3781		ahw->port_config = config;
3782	}
3783	return status;
3784}
3785
3786static int qlcnic_83xx_read_flash_status_reg(struct qlcnic_adapter *adapter)
3787{
3788	int ret, err = 0;
3789	u32 temp;
3790
3791	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_ADDR,
3792				     QLC_83XX_FLASH_OEM_READ_SIG);
3793	qlcnic_83xx_wrt_reg_indirect(adapter, QLC_83XX_FLASH_CONTROL,
3794				     QLC_83XX_FLASH_READ_CTRL);
3795	ret = qlcnic_83xx_poll_flash_status_reg(adapter);
3796	if (ret)
3797		return -EIO;
3798
3799	temp = QLCRD32(adapter, QLC_83XX_FLASH_RDDATA, &err);
3800	if (err == -EIO)
3801		return err;
3802
3803	return temp & 0xFF;
3804}
3805
3806int qlcnic_83xx_flash_test(struct qlcnic_adapter *adapter)
3807{
3808	int status;
3809
3810	status = qlcnic_83xx_read_flash_status_reg(adapter);
3811	if (status == -EIO) {
3812		dev_info(&adapter->pdev->dev, "%s: EEPROM test failed.\n",
3813			 __func__);
3814		return 1;
3815	}
3816	return 0;
3817}
3818
3819static int qlcnic_83xx_shutdown(struct pci_dev *pdev)
3820{
3821	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
3822	struct net_device *netdev = adapter->netdev;
3823
3824	netif_device_detach(netdev);
3825	qlcnic_cancel_idc_work(adapter);
3826
3827	if (netif_running(netdev))
3828		qlcnic_down(adapter, netdev);
3829
3830	qlcnic_83xx_disable_mbx_intr(adapter);
3831	cancel_delayed_work_sync(&adapter->idc_aen_work);
3832
3833	return pci_save_state(pdev);
3834}
3835
3836static int qlcnic_83xx_resume(struct qlcnic_adapter *adapter)
3837{
3838	struct qlcnic_hardware_context *ahw = adapter->ahw;
3839	struct qlc_83xx_idc *idc = &ahw->idc;
3840	int err = 0;
3841
3842	err = qlcnic_83xx_idc_init(adapter);
3843	if (err)
3844		return err;
3845
3846	if (ahw->nic_mode == QLCNIC_VNIC_MODE) {
3847		if (ahw->op_mode == QLCNIC_MGMT_FUNC) {
3848			qlcnic_83xx_set_vnic_opmode(adapter);
3849		} else {
3850			err = qlcnic_83xx_check_vnic_state(adapter);
3851			if (err)
3852				return err;
3853		}
3854	}
3855
3856	err = qlcnic_83xx_idc_reattach_driver(adapter);
3857	if (err)
3858		return err;
3859
3860	qlcnic_schedule_work(adapter, qlcnic_83xx_idc_poll_dev_state,
3861			     idc->delay);
3862	return err;
3863}
3864
3865void qlcnic_83xx_reinit_mbx_work(struct qlcnic_mailbox *mbx)
3866{
3867	reinit_completion(&mbx->completion);
3868	set_bit(QLC_83XX_MBX_READY, &mbx->status);
3869}
3870
3871void qlcnic_83xx_free_mailbox(struct qlcnic_mailbox *mbx)
3872{
3873	if (!mbx)
3874		return;
3875
3876	destroy_workqueue(mbx->work_q);
3877	kfree(mbx);
3878}
3879
3880static inline void
3881qlcnic_83xx_notify_cmd_completion(struct qlcnic_adapter *adapter,
3882				  struct qlcnic_cmd_args *cmd)
3883{
3884	atomic_set(&cmd->rsp_status, QLC_83XX_MBX_RESPONSE_ARRIVED);
3885
3886	if (cmd->type == QLC_83XX_MBX_CMD_NO_WAIT) {
3887		qlcnic_free_mbx_args(cmd);
3888		kfree(cmd);
3889		return;
3890	}
3891	complete(&cmd->completion);
3892}
3893
3894static void qlcnic_83xx_flush_mbx_queue(struct qlcnic_adapter *adapter)
3895{
3896	struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
3897	struct list_head *head = &mbx->cmd_q;
3898	struct qlcnic_cmd_args *cmd = NULL;
3899
3900	spin_lock_bh(&mbx->queue_lock);
3901
3902	while (!list_empty(head)) {
3903		cmd = list_entry(head->next, struct qlcnic_cmd_args, list);
3904		dev_info(&adapter->pdev->dev, "%s: Mailbox command 0x%x\n",
3905			 __func__, cmd->cmd_op);
3906		list_del(&cmd->list);
3907		mbx->num_cmds--;
3908		qlcnic_83xx_notify_cmd_completion(adapter, cmd);
3909	}
3910
3911	spin_unlock_bh(&mbx->queue_lock);
3912}
3913
3914static int qlcnic_83xx_check_mbx_status(struct qlcnic_adapter *adapter)
3915{
3916	struct qlcnic_hardware_context *ahw = adapter->ahw;
3917	struct qlcnic_mailbox *mbx = ahw->mailbox;
3918	u32 host_mbx_ctrl;
3919
3920	if (!test_bit(QLC_83XX_MBX_READY, &mbx->status))
3921		return -EBUSY;
3922
3923	host_mbx_ctrl = QLCRDX(ahw, QLCNIC_HOST_MBX_CTRL);
3924	if (host_mbx_ctrl) {
3925		clear_bit(QLC_83XX_MBX_READY, &mbx->status);
3926		ahw->idc.collect_dump = 1;
3927		return -EIO;
3928	}
3929
3930	return 0;
3931}
3932
3933static inline void qlcnic_83xx_signal_mbx_cmd(struct qlcnic_adapter *adapter,
3934					      u8 issue_cmd)
3935{
3936	if (issue_cmd)
3937		QLCWRX(adapter->ahw, QLCNIC_HOST_MBX_CTRL, QLCNIC_SET_OWNER);
3938	else
3939		QLCWRX(adapter->ahw, QLCNIC_FW_MBX_CTRL, QLCNIC_CLR_OWNER);
3940}
3941
3942static void qlcnic_83xx_dequeue_mbx_cmd(struct qlcnic_adapter *adapter,
3943					struct qlcnic_cmd_args *cmd)
3944{
3945	struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
3946
3947	spin_lock_bh(&mbx->queue_lock);
3948
3949	list_del(&cmd->list);
3950	mbx->num_cmds--;
3951
3952	spin_unlock_bh(&mbx->queue_lock);
3953
3954	qlcnic_83xx_notify_cmd_completion(adapter, cmd);
3955}
3956
3957static void qlcnic_83xx_encode_mbx_cmd(struct qlcnic_adapter *adapter,
3958				       struct qlcnic_cmd_args *cmd)
3959{
3960	u32 mbx_cmd, fw_hal_version, hdr_size, total_size, tmp;
3961	struct qlcnic_hardware_context *ahw = adapter->ahw;
3962	int i, j;
3963
3964	if (cmd->op_type != QLC_83XX_MBX_POST_BC_OP) {
3965		mbx_cmd = cmd->req.arg[0];
3966		writel(mbx_cmd, QLCNIC_MBX_HOST(ahw, 0));
3967		for (i = 1; i < cmd->req.num; i++)
3968			writel(cmd->req.arg[i], QLCNIC_MBX_HOST(ahw, i));
3969	} else {
3970		fw_hal_version = ahw->fw_hal_version;
3971		hdr_size = sizeof(struct qlcnic_bc_hdr) / sizeof(u32);
3972		total_size = cmd->pay_size + hdr_size;
3973		tmp = QLCNIC_CMD_BC_EVENT_SETUP | total_size << 16;
3974		mbx_cmd = tmp | fw_hal_version << 29;
3975		writel(mbx_cmd, QLCNIC_MBX_HOST(ahw, 0));
3976
3977		/* Back channel specific operations bits */
3978		mbx_cmd = 0x1 | 1 << 4;
3979
3980		if (qlcnic_sriov_pf_check(adapter))
3981			mbx_cmd |= cmd->func_num << 5;
3982
3983		writel(mbx_cmd, QLCNIC_MBX_HOST(ahw, 1));
3984
3985		for (i = 2, j = 0; j < hdr_size; i++, j++)
3986			writel(*(cmd->hdr++), QLCNIC_MBX_HOST(ahw, i));
3987		for (j = 0; j < cmd->pay_size; j++, i++)
3988			writel(*(cmd->pay++), QLCNIC_MBX_HOST(ahw, i));
3989	}
3990}
3991
3992void qlcnic_83xx_detach_mailbox_work(struct qlcnic_adapter *adapter)
3993{
3994	struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
3995
3996	if (!mbx)
3997		return;
3998
3999	clear_bit(QLC_83XX_MBX_READY, &mbx->status);
4000	complete(&mbx->completion);
4001	cancel_work_sync(&mbx->work);
4002	flush_workqueue(mbx->work_q);
4003	qlcnic_83xx_flush_mbx_queue(adapter);
4004}
4005
4006static int qlcnic_83xx_enqueue_mbx_cmd(struct qlcnic_adapter *adapter,
4007				       struct qlcnic_cmd_args *cmd,
4008				       unsigned long *timeout)
4009{
4010	struct qlcnic_mailbox *mbx = adapter->ahw->mailbox;
4011
4012	if (test_bit(QLC_83XX_MBX_READY, &mbx->status)) {
4013		atomic_set(&cmd->rsp_status, QLC_83XX_MBX_RESPONSE_WAIT);
4014		init_completion(&cmd->completion);
4015		cmd->rsp_opcode = QLC_83XX_MBX_RESPONSE_UNKNOWN;
4016
4017		spin_lock_bh(&mbx->queue_lock);
4018
4019		list_add_tail(&cmd->list, &mbx->cmd_q);
4020		mbx->num_cmds++;
4021		cmd->total_cmds = mbx->num_cmds;
4022		*timeout = cmd->total_cmds * QLC_83XX_MBX_TIMEOUT;
4023		queue_work(mbx->work_q, &mbx->work);
4024
4025		spin_unlock_bh(&mbx->queue_lock);
4026
4027		return 0;
4028	}
4029
4030	return -EBUSY;
4031}
4032
4033static int qlcnic_83xx_check_mac_rcode(struct qlcnic_adapter *adapter,
4034				       struct qlcnic_cmd_args *cmd)
4035{
4036	u8 mac_cmd_rcode;
4037	u32 fw_data;
4038
4039	if (cmd->cmd_op == QLCNIC_CMD_CONFIG_MAC_VLAN) {
4040		fw_data = readl(QLCNIC_MBX_FW(adapter->ahw, 2));
4041		mac_cmd_rcode = (u8)fw_data;
4042		if (mac_cmd_rcode == QLC_83XX_NO_NIC_RESOURCE ||
4043		    mac_cmd_rcode == QLC_83XX_MAC_PRESENT ||
4044		    mac_cmd_rcode == QLC_83XX_MAC_ABSENT) {
4045			cmd->rsp_opcode = QLCNIC_RCODE_SUCCESS;
4046			return QLCNIC_RCODE_SUCCESS;
4047		}
4048	}
4049
4050	return -EINVAL;
4051}
4052
4053static void qlcnic_83xx_decode_mbx_rsp(struct qlcnic_adapter *adapter,
4054				       struct qlcnic_cmd_args *cmd)
4055{
4056	struct qlcnic_hardware_context *ahw = adapter->ahw;
4057	struct device *dev = &adapter->pdev->dev;
4058	u8 mbx_err_code;
4059	u32 fw_data;
4060
4061	fw_data = readl(QLCNIC_MBX_FW(ahw, 0));
4062	mbx_err_code = QLCNIC_MBX_STATUS(fw_data);
4063	qlcnic_83xx_get_mbx_data(adapter, cmd);
4064
4065	switch (mbx_err_code) {
4066	case QLCNIC_MBX_RSP_OK:
4067	case QLCNIC_MBX_PORT_RSP_OK:
4068		cmd->rsp_opcode = QLCNIC_RCODE_SUCCESS;
4069		break;
4070	default:
4071		if (!qlcnic_83xx_check_mac_rcode(adapter, cmd))
4072			break;
4073
4074		dev_err(dev, "%s: Mailbox command failed, opcode=0x%x, cmd_type=0x%x, func=0x%x, op_mode=0x%x, error=0x%x\n",
4075			__func__, cmd->cmd_op, cmd->type, ahw->pci_func,
4076			ahw->op_mode, mbx_err_code);
4077		cmd->rsp_opcode = QLC_83XX_MBX_RESPONSE_FAILED;
4078		qlcnic_dump_mbx(adapter, cmd);
4079	}
4080
4081	return;
4082}
4083
4084static inline void qlcnic_dump_mailbox_registers(struct qlcnic_adapter *adapter)
4085{
4086	struct qlcnic_hardware_context *ahw = adapter->ahw;
4087	u32 offset;
4088
4089	offset = QLCRDX(ahw, QLCNIC_DEF_INT_MASK);
4090	dev_info(&adapter->pdev->dev, "Mbx interrupt mask=0x%x, Mbx interrupt enable=0x%x, Host mbx control=0x%x, Fw mbx control=0x%x",
4091		 readl(ahw->pci_base0 + offset),
4092		 QLCRDX(ahw, QLCNIC_MBX_INTR_ENBL),
4093		 QLCRDX(ahw, QLCNIC_HOST_MBX_CTRL),
4094		 QLCRDX(ahw, QLCNIC_FW_MBX_CTRL));
4095}
4096
4097static void qlcnic_83xx_mailbox_worker(struct work_struct *work)
4098{
4099	struct qlcnic_mailbox *mbx = container_of(work, struct qlcnic_mailbox,
4100						  work);
4101	struct qlcnic_adapter *adapter = mbx->adapter;
4102	const struct qlcnic_mbx_ops *mbx_ops = mbx->ops;
4103	struct device *dev = &adapter->pdev->dev;
4104	struct list_head *head = &mbx->cmd_q;
4105	struct qlcnic_hardware_context *ahw;
4106	struct qlcnic_cmd_args *cmd = NULL;
4107	unsigned long flags;
4108
4109	ahw = adapter->ahw;
4110
4111	while (true) {
4112		if (qlcnic_83xx_check_mbx_status(adapter)) {
4113			qlcnic_83xx_flush_mbx_queue(adapter);
4114			return;
4115		}
4116
4117		spin_lock_irqsave(&mbx->aen_lock, flags);
4118		mbx->rsp_status = QLC_83XX_MBX_RESPONSE_WAIT;
4119		spin_unlock_irqrestore(&mbx->aen_lock, flags);
4120
4121		spin_lock_bh(&mbx->queue_lock);
4122
4123		if (list_empty(head)) {
4124			spin_unlock_bh(&mbx->queue_lock);
4125			return;
4126		}
4127		cmd = list_entry(head->next, struct qlcnic_cmd_args, list);
4128
4129		spin_unlock_bh(&mbx->queue_lock);
4130
4131		mbx_ops->encode_cmd(adapter, cmd);
4132		mbx_ops->nofity_fw(adapter, QLC_83XX_MBX_REQUEST);
4133
4134		if (wait_for_completion_timeout(&mbx->completion,
4135						QLC_83XX_MBX_TIMEOUT)) {
4136			mbx_ops->decode_resp(adapter, cmd);
4137			mbx_ops->nofity_fw(adapter, QLC_83XX_MBX_COMPLETION);
4138		} else {
4139			dev_err(dev, "%s: Mailbox command timeout, opcode=0x%x, cmd_type=0x%x, func=0x%x, op_mode=0x%x\n",
4140				__func__, cmd->cmd_op, cmd->type, ahw->pci_func,
4141				ahw->op_mode);
4142			clear_bit(QLC_83XX_MBX_READY, &mbx->status);
4143			qlcnic_dump_mailbox_registers(adapter);
4144			qlcnic_83xx_get_mbx_data(adapter, cmd);
4145			qlcnic_dump_mbx(adapter, cmd);
4146			qlcnic_83xx_idc_request_reset(adapter,
4147						      QLCNIC_FORCE_FW_DUMP_KEY);
4148			cmd->rsp_opcode = QLCNIC_RCODE_TIMEOUT;
4149		}
4150		mbx_ops->dequeue_cmd(adapter, cmd);
4151	}
4152}
4153
4154static const struct qlcnic_mbx_ops qlcnic_83xx_mbx_ops = {
4155	.enqueue_cmd    = qlcnic_83xx_enqueue_mbx_cmd,
4156	.dequeue_cmd    = qlcnic_83xx_dequeue_mbx_cmd,
4157	.decode_resp    = qlcnic_83xx_decode_mbx_rsp,
4158	.encode_cmd     = qlcnic_83xx_encode_mbx_cmd,
4159	.nofity_fw      = qlcnic_83xx_signal_mbx_cmd,
4160};
4161
4162int qlcnic_83xx_init_mailbox_work(struct qlcnic_adapter *adapter)
4163{
4164	struct qlcnic_hardware_context *ahw = adapter->ahw;
4165	struct qlcnic_mailbox *mbx;
4166
4167	ahw->mailbox = kzalloc(sizeof(*mbx), GFP_KERNEL);
4168	if (!ahw->mailbox)
4169		return -ENOMEM;
4170
4171	mbx = ahw->mailbox;
4172	mbx->ops = &qlcnic_83xx_mbx_ops;
4173	mbx->adapter = adapter;
4174
4175	spin_lock_init(&mbx->queue_lock);
4176	spin_lock_init(&mbx->aen_lock);
4177	INIT_LIST_HEAD(&mbx->cmd_q);
4178	init_completion(&mbx->completion);
4179
4180	mbx->work_q = create_singlethread_workqueue("qlcnic_mailbox");
4181	if (mbx->work_q == NULL) {
4182		kfree(mbx);
4183		return -ENOMEM;
4184	}
4185
4186	INIT_WORK(&mbx->work, qlcnic_83xx_mailbox_worker);
4187	set_bit(QLC_83XX_MBX_READY, &mbx->status);
4188	return 0;
4189}
4190
4191static pci_ers_result_t qlcnic_83xx_io_error_detected(struct pci_dev *pdev,
4192						      pci_channel_state_t state)
4193{
4194	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
4195
4196	if (state == pci_channel_io_perm_failure)
4197		return PCI_ERS_RESULT_DISCONNECT;
4198
4199	if (state == pci_channel_io_normal)
4200		return PCI_ERS_RESULT_RECOVERED;
4201
4202	set_bit(__QLCNIC_AER, &adapter->state);
4203	set_bit(__QLCNIC_RESETTING, &adapter->state);
4204
4205	qlcnic_83xx_aer_stop_poll_work(adapter);
4206
4207	pci_save_state(pdev);
4208	pci_disable_device(pdev);
4209
4210	return PCI_ERS_RESULT_NEED_RESET;
4211}
4212
4213static pci_ers_result_t qlcnic_83xx_io_slot_reset(struct pci_dev *pdev)
4214{
4215	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
4216	int err = 0;
4217
4218	pdev->error_state = pci_channel_io_normal;
4219	err = pci_enable_device(pdev);
4220	if (err)
4221		goto disconnect;
4222
4223	pci_set_power_state(pdev, PCI_D0);
4224	pci_set_master(pdev);
4225	pci_restore_state(pdev);
4226
4227	err = qlcnic_83xx_aer_reset(adapter);
4228	if (err == 0)
4229		return PCI_ERS_RESULT_RECOVERED;
4230disconnect:
4231	clear_bit(__QLCNIC_AER, &adapter->state);
4232	clear_bit(__QLCNIC_RESETTING, &adapter->state);
4233	return PCI_ERS_RESULT_DISCONNECT;
4234}
4235
4236static void qlcnic_83xx_io_resume(struct pci_dev *pdev)
4237{
4238	struct qlcnic_adapter *adapter = pci_get_drvdata(pdev);
4239
4240	if (test_and_clear_bit(__QLCNIC_AER, &adapter->state))
4241		qlcnic_83xx_aer_start_poll_work(adapter);
4242}