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      1 /*
      2  * CDDL HEADER START
      3  *
      4  * The contents of this file are subject to the terms of the
      5  * Common Development and Distribution License (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 /*
     22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
     23  * Use is subject to license terms.
     24  */
     25 
     26 /*
     27  * SunOs MT STREAMS Hydra 10Gb Ethernet Device Driver.
     28  */
     29 #include <hxge_impl.h>
     30 #include <hxge_pfc.h>
     31 
     32 /*
     33  * PSARC/2007/453 MSI-X interrupt limit override
     34  * (This PSARC case is limited to MSI-X vectors
     35  *  and SPARC platforms only).
     36  */
     37 uint32_t hxge_msi_enable = 2;
     38 
     39 /*
     40  * Globals: tunable parameters (/etc/system or adb)
     41  *
     42  */
     43 uint32_t hxge_rbr_size = HXGE_RBR_RBB_DEFAULT;
     44 uint32_t hxge_rbr_spare_size = 0;
     45 uint32_t hxge_rcr_size = HXGE_RCR_DEFAULT;
     46 uint32_t hxge_tx_ring_size = HXGE_TX_RING_DEFAULT;
     47 uint32_t hxge_bcopy_thresh = TX_BCOPY_MAX;
     48 uint32_t hxge_dvma_thresh = TX_FASTDVMA_MIN;
     49 uint32_t hxge_dma_stream_thresh = TX_STREAM_MIN;
     50 uint32_t hxge_jumbo_frame_size = MAX_FRAME_SIZE;
     51 
     52 static hxge_os_mutex_t hxgedebuglock;
     53 static int hxge_debug_init = 0;
     54 
     55 /*
     56  * Debugging flags:
     57  *		hxge_no_tx_lb : transmit load balancing
     58  *		hxge_tx_lb_policy: 0 - TCP/UDP port (default)
     59  *				   1 - From the Stack
     60  *				   2 - Destination IP Address
     61  */
     62 uint32_t hxge_no_tx_lb = 0;
     63 uint32_t hxge_tx_lb_policy = HXGE_TX_LB_TCPUDP;
     64 
     65 /*
     66  * Tunables to manage the receive buffer blocks.
     67  *
     68  * hxge_rx_threshold_hi: copy all buffers.
     69  * hxge_rx_bcopy_size_type: receive buffer block size type.
     70  * hxge_rx_threshold_lo: copy only up to tunable block size type.
     71  */
     72 #if defined(__sparc)
     73 hxge_rxbuf_threshold_t hxge_rx_threshold_hi = HXGE_RX_COPY_6;
     74 hxge_rxbuf_threshold_t hxge_rx_threshold_lo = HXGE_RX_COPY_4;
     75 #else
     76 hxge_rxbuf_threshold_t hxge_rx_threshold_hi = HXGE_RX_COPY_NONE;
     77 hxge_rxbuf_threshold_t hxge_rx_threshold_lo = HXGE_RX_COPY_NONE;
     78 #endif
     79 hxge_rxbuf_type_t hxge_rx_buf_size_type = RCR_PKTBUFSZ_0;
     80 
     81 rtrace_t hpi_rtracebuf;
     82 
     83 /*
     84  * Function Prototypes
     85  */
     86 static int hxge_attach(dev_info_t *, ddi_attach_cmd_t);
     87 static int hxge_detach(dev_info_t *, ddi_detach_cmd_t);
     88 static void hxge_unattach(p_hxge_t);
     89 
     90 static hxge_status_t hxge_setup_system_dma_pages(p_hxge_t);
     91 
     92 static hxge_status_t hxge_setup_mutexes(p_hxge_t);
     93 static void hxge_destroy_mutexes(p_hxge_t);
     94 
     95 static hxge_status_t hxge_map_regs(p_hxge_t hxgep);
     96 static void hxge_unmap_regs(p_hxge_t hxgep);
     97 
     98 static hxge_status_t hxge_add_intrs(p_hxge_t hxgep);
     99 static void hxge_remove_intrs(p_hxge_t hxgep);
    100 static hxge_status_t hxge_add_intrs_adv(p_hxge_t hxgep);
    101 static hxge_status_t hxge_add_intrs_adv_type(p_hxge_t, uint32_t);
    102 static hxge_status_t hxge_add_intrs_adv_type_fix(p_hxge_t, uint32_t);
    103 static void hxge_intrs_enable(p_hxge_t hxgep);
    104 static void hxge_intrs_disable(p_hxge_t hxgep);
    105 static void hxge_suspend(p_hxge_t);
    106 static hxge_status_t hxge_resume(p_hxge_t);
    107 static hxge_status_t hxge_setup_dev(p_hxge_t);
    108 static void hxge_destroy_dev(p_hxge_t);
    109 static hxge_status_t hxge_alloc_mem_pool(p_hxge_t);
    110 static void hxge_free_mem_pool(p_hxge_t);
    111 static hxge_status_t hxge_alloc_rx_mem_pool(p_hxge_t);
    112 static void hxge_free_rx_mem_pool(p_hxge_t);
    113 static hxge_status_t hxge_alloc_tx_mem_pool(p_hxge_t);
    114 static void hxge_free_tx_mem_pool(p_hxge_t);
    115 static hxge_status_t hxge_dma_mem_alloc(p_hxge_t, dma_method_t,
    116     struct ddi_dma_attr *, size_t, ddi_device_acc_attr_t *, uint_t,
    117     p_hxge_dma_common_t);
    118 static void hxge_dma_mem_free(p_hxge_dma_common_t);
    119 static hxge_status_t hxge_alloc_rx_buf_dma(p_hxge_t, uint16_t,
    120     p_hxge_dma_common_t *, size_t, size_t, uint32_t *);
    121 static void hxge_free_rx_buf_dma(p_hxge_t, p_hxge_dma_common_t, uint32_t);
    122 static hxge_status_t hxge_alloc_rx_cntl_dma(p_hxge_t, uint16_t,
    123     p_hxge_dma_common_t *, struct ddi_dma_attr *, size_t);
    124 static void hxge_free_rx_cntl_dma(p_hxge_t, p_hxge_dma_common_t);
    125 static hxge_status_t hxge_alloc_tx_buf_dma(p_hxge_t, uint16_t,
    126     p_hxge_dma_common_t *, size_t, size_t, uint32_t *);
    127 static void hxge_free_tx_buf_dma(p_hxge_t, p_hxge_dma_common_t, uint32_t);
    128 static hxge_status_t hxge_alloc_tx_cntl_dma(p_hxge_t, uint16_t,
    129     p_hxge_dma_common_t *, size_t);
    130 static void hxge_free_tx_cntl_dma(p_hxge_t, p_hxge_dma_common_t);
    131 static int hxge_init_common_dev(p_hxge_t);
    132 static void hxge_uninit_common_dev(p_hxge_t);
    133 
    134 /*
    135  * The next declarations are for the GLDv3 interface.
    136  */
    137 static int hxge_m_start(void *);
    138 static void hxge_m_stop(void *);
    139 static int hxge_m_multicst(void *, boolean_t, const uint8_t *);
    140 static int hxge_m_promisc(void *, boolean_t);
    141 static void hxge_m_ioctl(void *, queue_t *, mblk_t *);
    142 static hxge_status_t hxge_mac_register(p_hxge_t hxgep);
    143 
    144 static boolean_t hxge_m_getcapab(void *, mac_capab_t, void *);
    145 static boolean_t hxge_param_locked(mac_prop_id_t pr_num);
    146 static int hxge_m_setprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
    147     uint_t pr_valsize, const void *pr_val);
    148 static int hxge_m_getprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
    149     uint_t pr_flags, uint_t pr_valsize, void *pr_val, uint_t *);
    150 static int hxge_get_def_val(hxge_t *hxgep, mac_prop_id_t pr_num,
    151     uint_t pr_valsize, void *pr_val);
    152 static int hxge_set_priv_prop(p_hxge_t hxgep, const char *pr_name,
    153     uint_t pr_valsize, const void *pr_val);
    154 static int hxge_get_priv_prop(p_hxge_t hxgep, const char *pr_name,
    155     uint_t pr_flags, uint_t pr_valsize, void *pr_val);
    156 static void hxge_link_poll(void *arg);
    157 static void hxge_link_update(p_hxge_t hxge, link_state_t state);
    158 static void hxge_msix_init(p_hxge_t hxgep);
    159 
    160 mac_priv_prop_t hxge_priv_props[] = {
    161 	{"_rxdma_intr_time", MAC_PROP_PERM_RW},
    162 	{"_rxdma_intr_pkts", MAC_PROP_PERM_RW},
    163 	{"_class_opt_ipv4_tcp", MAC_PROP_PERM_RW},
    164 	{"_class_opt_ipv4_udp", MAC_PROP_PERM_RW},
    165 	{"_class_opt_ipv4_ah", MAC_PROP_PERM_RW},
    166 	{"_class_opt_ipv4_sctp", MAC_PROP_PERM_RW},
    167 	{"_class_opt_ipv6_tcp", MAC_PROP_PERM_RW},
    168 	{"_class_opt_ipv6_udp", MAC_PROP_PERM_RW},
    169 	{"_class_opt_ipv6_ah", MAC_PROP_PERM_RW},
    170 	{"_class_opt_ipv6_sctp", MAC_PROP_PERM_RW}
    171 };
    172 
    173 #define	HXGE_MAX_PRIV_PROPS	\
    174 	(sizeof (hxge_priv_props)/sizeof (mac_priv_prop_t))
    175 
    176 #define	HXGE_MAGIC	0x4E584745UL
    177 #define	MAX_DUMP_SZ 256
    178 
    179 #define	HXGE_M_CALLBACK_FLAGS	\
    180 	(MC_IOCTL | MC_GETCAPAB | MC_SETPROP | MC_GETPROP)
    181 
    182 extern hxge_status_t hxge_pfc_set_default_mac_addr(p_hxge_t hxgep);
    183 
    184 static mac_callbacks_t hxge_m_callbacks = {
    185 	HXGE_M_CALLBACK_FLAGS,
    186 	hxge_m_stat,
    187 	hxge_m_start,
    188 	hxge_m_stop,
    189 	hxge_m_promisc,
    190 	hxge_m_multicst,
    191 	NULL,
    192 	NULL,
    193 	hxge_m_ioctl,
    194 	hxge_m_getcapab,
    195 	NULL,
    196 	NULL,
    197 	hxge_m_setprop,
    198 	hxge_m_getprop
    199 };
    200 
    201 /* PSARC/2007/453 MSI-X interrupt limit override. */
    202 #define	HXGE_MSIX_REQUEST_10G	8
    203 static int hxge_create_msi_property(p_hxge_t);
    204 
    205 /* Enable debug messages as necessary. */
    206 uint64_t hxge_debug_level = 0;
    207 
    208 /*
    209  * This list contains the instance structures for the Hydra
    210  * devices present in the system. The lock exists to guarantee
    211  * mutually exclusive access to the list.
    212  */
    213 void *hxge_list = NULL;
    214 void *hxge_hw_list = NULL;
    215 hxge_os_mutex_t hxge_common_lock;
    216 
    217 extern uint64_t hpi_debug_level;
    218 
    219 extern hxge_status_t hxge_ldgv_init();
    220 extern hxge_status_t hxge_ldgv_uninit();
    221 extern hxge_status_t hxge_intr_ldgv_init();
    222 extern void hxge_fm_init(p_hxge_t hxgep, ddi_device_acc_attr_t *reg_attr,
    223     ddi_device_acc_attr_t *desc_attr, ddi_dma_attr_t *dma_attr);
    224 extern void hxge_fm_fini(p_hxge_t hxgep);
    225 
    226 /*
    227  * Count used to maintain the number of buffers being used
    228  * by Hydra instances and loaned up to the upper layers.
    229  */
    230 uint32_t hxge_mblks_pending = 0;
    231 
    232 /*
    233  * Device register access attributes for PIO.
    234  */
    235 static ddi_device_acc_attr_t hxge_dev_reg_acc_attr = {
    236 	DDI_DEVICE_ATTR_V0,
    237 	DDI_STRUCTURE_LE_ACC,
    238 	DDI_STRICTORDER_ACC,
    239 };
    240 
    241 /*
    242  * Device descriptor access attributes for DMA.
    243  */
    244 static ddi_device_acc_attr_t hxge_dev_desc_dma_acc_attr = {
    245 	DDI_DEVICE_ATTR_V0,
    246 	DDI_STRUCTURE_LE_ACC,
    247 	DDI_STRICTORDER_ACC
    248 };
    249 
    250 /*
    251  * Device buffer access attributes for DMA.
    252  */
    253 static ddi_device_acc_attr_t hxge_dev_buf_dma_acc_attr = {
    254 	DDI_DEVICE_ATTR_V0,
    255 	DDI_STRUCTURE_BE_ACC,
    256 	DDI_STRICTORDER_ACC
    257 };
    258 
    259 ddi_dma_attr_t hxge_rx_rcr_desc_dma_attr = {
    260 	DMA_ATTR_V0,		/* version number. */
    261 	0,			/* low address */
    262 	0xffffffffffffffff,	/* high address */
    263 	0xffffffffffffffff,	/* address counter max */
    264 	0x80000,		/* alignment */
    265 	0xfc00fc,		/* dlim_burstsizes */
    266 	0x1,			/* minimum transfer size */
    267 	0xffffffffffffffff,	/* maximum transfer size */
    268 	0xffffffffffffffff,	/* maximum segment size */
    269 	1,			/* scatter/gather list length */
    270 	(unsigned int)1,	/* granularity */
    271 	0			/* attribute flags */
    272 };
    273 
    274 ddi_dma_attr_t hxge_tx_desc_dma_attr = {
    275 	DMA_ATTR_V0,		/* version number. */
    276 	0,			/* low address */
    277 	0xffffffffffffffff,	/* high address */
    278 	0xffffffffffffffff,	/* address counter max */
    279 	0x100000,		/* alignment */
    280 	0xfc00fc,		/* dlim_burstsizes */
    281 	0x1,			/* minimum transfer size */
    282 	0xffffffffffffffff,	/* maximum transfer size */
    283 	0xffffffffffffffff,	/* maximum segment size */
    284 	1,			/* scatter/gather list length */
    285 	(unsigned int)1,	/* granularity */
    286 	0			/* attribute flags */
    287 };
    288 
    289 ddi_dma_attr_t hxge_rx_rbr_desc_dma_attr = {
    290 	DMA_ATTR_V0,		/* version number. */
    291 	0,			/* low address */
    292 	0xffffffffffffffff,	/* high address */
    293 	0xffffffffffffffff,	/* address counter max */
    294 	0x40000,		/* alignment */
    295 	0xfc00fc,		/* dlim_burstsizes */
    296 	0x1,			/* minimum transfer size */
    297 	0xffffffffffffffff,	/* maximum transfer size */
    298 	0xffffffffffffffff,	/* maximum segment size */
    299 	1,			/* scatter/gather list length */
    300 	(unsigned int)1,	/* granularity */
    301 	0			/* attribute flags */
    302 };
    303 
    304 ddi_dma_attr_t hxge_rx_mbox_dma_attr = {
    305 	DMA_ATTR_V0,		/* version number. */
    306 	0,			/* low address */
    307 	0xffffffffffffffff,	/* high address */
    308 	0xffffffffffffffff,	/* address counter max */
    309 #if defined(_BIG_ENDIAN)
    310 	0x2000,			/* alignment */
    311 #else
    312 	0x1000,			/* alignment */
    313 #endif
    314 	0xfc00fc,		/* dlim_burstsizes */
    315 	0x1,			/* minimum transfer size */
    316 	0xffffffffffffffff,	/* maximum transfer size */
    317 	0xffffffffffffffff,	/* maximum segment size */
    318 	5,			/* scatter/gather list length */
    319 	(unsigned int)1,	/* granularity */
    320 	0			/* attribute flags */
    321 };
    322 
    323 ddi_dma_attr_t hxge_tx_dma_attr = {
    324 	DMA_ATTR_V0,		/* version number. */
    325 	0,			/* low address */
    326 	0xffffffffffffffff,	/* high address */
    327 	0xffffffffffffffff,	/* address counter max */
    328 #if defined(_BIG_ENDIAN)
    329 	0x2000,			/* alignment */
    330 #else
    331 	0x1000,			/* alignment */
    332 #endif
    333 	0xfc00fc,		/* dlim_burstsizes */
    334 	0x1,			/* minimum transfer size */
    335 	0xffffffffffffffff,	/* maximum transfer size */
    336 	0xffffffffffffffff,	/* maximum segment size */
    337 	5,			/* scatter/gather list length */
    338 	(unsigned int)1,	/* granularity */
    339 	0			/* attribute flags */
    340 };
    341 
    342 ddi_dma_attr_t hxge_rx_dma_attr = {
    343 	DMA_ATTR_V0,		/* version number. */
    344 	0,			/* low address */
    345 	0xffffffffffffffff,	/* high address */
    346 	0xffffffffffffffff,	/* address counter max */
    347 	0x10000,		/* alignment */
    348 	0xfc00fc,		/* dlim_burstsizes */
    349 	0x1,			/* minimum transfer size */
    350 	0xffffffffffffffff,	/* maximum transfer size */
    351 	0xffffffffffffffff,	/* maximum segment size */
    352 	1,			/* scatter/gather list length */
    353 	(unsigned int)1,	/* granularity */
    354 	DDI_DMA_RELAXED_ORDERING /* attribute flags */
    355 };
    356 
    357 ddi_dma_lim_t hxge_dma_limits = {
    358 	(uint_t)0,		/* dlim_addr_lo */
    359 	(uint_t)0xffffffff,	/* dlim_addr_hi */
    360 	(uint_t)0xffffffff,	/* dlim_cntr_max */
    361 	(uint_t)0xfc00fc,	/* dlim_burstsizes for 32 and 64 bit xfers */
    362 	0x1,			/* dlim_minxfer */
    363 	1024			/* dlim_speed */
    364 };
    365 
    366 dma_method_t hxge_force_dma = DVMA;
    367 
    368 /*
    369  * dma chunk sizes.
    370  *
    371  * Try to allocate the largest possible size
    372  * so that fewer number of dma chunks would be managed
    373  */
    374 size_t alloc_sizes[] = {
    375     0x1000, 0x2000, 0x4000, 0x8000,
    376     0x10000, 0x20000, 0x40000, 0x80000,
    377     0x100000, 0x200000, 0x400000, 0x800000, 0x1000000
    378 };
    379 
    380 /*
    381  * Translate "dev_t" to a pointer to the associated "dev_info_t".
    382  */
    383 static int
    384 hxge_attach(dev_info_t *dip, ddi_attach_cmd_t cmd)
    385 {
    386 	p_hxge_t	hxgep = NULL;
    387 	int		instance;
    388 	int		status = DDI_SUCCESS;
    389 	int		i;
    390 
    391 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_attach"));
    392 
    393 	/*
    394 	 * Get the device instance since we'll need to setup or retrieve a soft
    395 	 * state for this instance.
    396 	 */
    397 	instance = ddi_get_instance(dip);
    398 
    399 	switch (cmd) {
    400 	case DDI_ATTACH:
    401 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "doing DDI_ATTACH"));
    402 		break;
    403 
    404 	case DDI_RESUME:
    405 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "doing DDI_RESUME"));
    406 		hxgep = (p_hxge_t)ddi_get_soft_state(hxge_list, instance);
    407 		if (hxgep == NULL) {
    408 			status = DDI_FAILURE;
    409 			break;
    410 		}
    411 		if (hxgep->dip != dip) {
    412 			status = DDI_FAILURE;
    413 			break;
    414 		}
    415 		if (hxgep->suspended == DDI_PM_SUSPEND) {
    416 			status = ddi_dev_is_needed(hxgep->dip, 0, 1);
    417 		} else {
    418 			(void) hxge_resume(hxgep);
    419 		}
    420 		goto hxge_attach_exit;
    421 
    422 	case DDI_PM_RESUME:
    423 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "doing DDI_PM_RESUME"));
    424 		hxgep = (p_hxge_t)ddi_get_soft_state(hxge_list, instance);
    425 		if (hxgep == NULL) {
    426 			status = DDI_FAILURE;
    427 			break;
    428 		}
    429 		if (hxgep->dip != dip) {
    430 			status = DDI_FAILURE;
    431 			break;
    432 		}
    433 		(void) hxge_resume(hxgep);
    434 		goto hxge_attach_exit;
    435 
    436 	default:
    437 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "doing unknown"));
    438 		status = DDI_FAILURE;
    439 		goto hxge_attach_exit;
    440 	}
    441 
    442 	if (ddi_soft_state_zalloc(hxge_list, instance) == DDI_FAILURE) {
    443 		status = DDI_FAILURE;
    444 		HXGE_ERROR_MSG((hxgep, DDI_CTL,
    445 		    "ddi_soft_state_zalloc failed"));
    446 		goto hxge_attach_exit;
    447 	}
    448 
    449 	hxgep = ddi_get_soft_state(hxge_list, instance);
    450 	if (hxgep == NULL) {
    451 		status = HXGE_ERROR;
    452 		HXGE_ERROR_MSG((hxgep, DDI_CTL,
    453 		    "ddi_get_soft_state failed"));
    454 		goto hxge_attach_fail2;
    455 	}
    456 
    457 	hxgep->drv_state = 0;
    458 	hxgep->dip = dip;
    459 	hxgep->instance = instance;
    460 	hxgep->p_dip = ddi_get_parent(dip);
    461 	hxgep->hxge_debug_level = hxge_debug_level;
    462 	hpi_debug_level = hxge_debug_level;
    463 
    464 	/*
    465 	 * Initialize MMAC struture.
    466 	 */
    467 	(void) hxge_pfc_num_macs_get(hxgep, &hxgep->mmac.total);
    468 	hxgep->mmac.available = hxgep->mmac.total;
    469 	for (i = 0; i < hxgep->mmac.total; i++) {
    470 		hxgep->mmac.addrs[i].set = B_FALSE;
    471 		hxgep->mmac.addrs[i].primary = B_FALSE;
    472 	}
    473 
    474 	hxge_fm_init(hxgep, &hxge_dev_reg_acc_attr, &hxge_dev_desc_dma_acc_attr,
    475 	    &hxge_rx_dma_attr);
    476 
    477 	status = hxge_map_regs(hxgep);
    478 	if (status != HXGE_OK) {
    479 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "hxge_map_regs failed"));
    480 		goto hxge_attach_fail3;
    481 	}
    482 
    483 	status = hxge_init_common_dev(hxgep);
    484 	if (status != HXGE_OK) {
    485 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    486 		    "hxge_init_common_dev failed"));
    487 		goto hxge_attach_fail4;
    488 	}
    489 
    490 	/*
    491 	 * Setup the Ndd parameters for this instance.
    492 	 */
    493 	hxge_init_param(hxgep);
    494 
    495 	/*
    496 	 * Setup Register Tracing Buffer.
    497 	 */
    498 	hpi_rtrace_buf_init((rtrace_t *)&hpi_rtracebuf);
    499 
    500 	/* init stats ptr */
    501 	hxge_init_statsp(hxgep);
    502 
    503 	status = hxge_setup_mutexes(hxgep);
    504 	if (status != HXGE_OK) {
    505 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "set mutex failed"));
    506 		goto hxge_attach_fail;
    507 	}
    508 
    509 	/* Scrub the MSI-X memory */
    510 	hxge_msix_init(hxgep);
    511 
    512 	status = hxge_get_config_properties(hxgep);
    513 	if (status != HXGE_OK) {
    514 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "get_hw create failed"));
    515 		goto hxge_attach_fail;
    516 	}
    517 
    518 	/*
    519 	 * Setup the Kstats for the driver.
    520 	 */
    521 	hxge_setup_kstats(hxgep);
    522 	hxge_setup_param(hxgep);
    523 
    524 	status = hxge_setup_system_dma_pages(hxgep);
    525 	if (status != HXGE_OK) {
    526 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "set dma page failed"));
    527 		goto hxge_attach_fail;
    528 	}
    529 
    530 	hxge_hw_id_init(hxgep);
    531 	hxge_hw_init_niu_common(hxgep);
    532 
    533 	status = hxge_setup_dev(hxgep);
    534 	if (status != DDI_SUCCESS) {
    535 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "set dev failed"));
    536 		goto hxge_attach_fail;
    537 	}
    538 
    539 	status = hxge_add_intrs(hxgep);
    540 	if (status != DDI_SUCCESS) {
    541 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "add_intr failed"));
    542 		goto hxge_attach_fail;
    543 	}
    544 
    545 	/*
    546 	 * Enable interrupts.
    547 	 */
    548 	hxge_intrs_enable(hxgep);
    549 
    550 	if ((status = hxge_mac_register(hxgep)) != HXGE_OK) {
    551 		HXGE_DEBUG_MSG((hxgep, DDI_CTL,
    552 		    "unable to register to mac layer (%d)", status));
    553 		goto hxge_attach_fail;
    554 	}
    555 	mac_link_update(hxgep->mach, LINK_STATE_UNKNOWN);
    556 
    557 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "registered to mac (instance %d)",
    558 	    instance));
    559 
    560 	goto hxge_attach_exit;
    561 
    562 hxge_attach_fail:
    563 	hxge_unattach(hxgep);
    564 	goto hxge_attach_fail1;
    565 
    566 hxge_attach_fail5:
    567 	/*
    568 	 * Tear down the ndd parameters setup.
    569 	 */
    570 	hxge_destroy_param(hxgep);
    571 
    572 	/*
    573 	 * Tear down the kstat setup.
    574 	 */
    575 	hxge_destroy_kstats(hxgep);
    576 
    577 hxge_attach_fail4:
    578 	if (hxgep->hxge_hw_p) {
    579 		hxge_uninit_common_dev(hxgep);
    580 		hxgep->hxge_hw_p = NULL;
    581 	}
    582 hxge_attach_fail3:
    583 	/*
    584 	 * Unmap the register setup.
    585 	 */
    586 	hxge_unmap_regs(hxgep);
    587 
    588 	hxge_fm_fini(hxgep);
    589 
    590 hxge_attach_fail2:
    591 	ddi_soft_state_free(hxge_list, hxgep->instance);
    592 
    593 hxge_attach_fail1:
    594 	if (status != HXGE_OK)
    595 		status = (HXGE_ERROR | HXGE_DDI_FAILED);
    596 	hxgep = NULL;
    597 
    598 hxge_attach_exit:
    599 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_attach status = 0x%08x",
    600 	    status));
    601 
    602 	return (status);
    603 }
    604 
    605 static int
    606 hxge_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
    607 {
    608 	int		status = DDI_SUCCESS;
    609 	int		instance;
    610 	p_hxge_t	hxgep = NULL;
    611 
    612 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_detach"));
    613 	instance = ddi_get_instance(dip);
    614 	hxgep = ddi_get_soft_state(hxge_list, instance);
    615 	if (hxgep == NULL) {
    616 		status = DDI_FAILURE;
    617 		goto hxge_detach_exit;
    618 	}
    619 
    620 	switch (cmd) {
    621 	case DDI_DETACH:
    622 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "doing DDI_DETACH"));
    623 		break;
    624 
    625 	case DDI_PM_SUSPEND:
    626 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "doing DDI_PM_SUSPEND"));
    627 		hxgep->suspended = DDI_PM_SUSPEND;
    628 		hxge_suspend(hxgep);
    629 		break;
    630 
    631 	case DDI_SUSPEND:
    632 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "doing DDI_SUSPEND"));
    633 		if (hxgep->suspended != DDI_PM_SUSPEND) {
    634 			hxgep->suspended = DDI_SUSPEND;
    635 			hxge_suspend(hxgep);
    636 		}
    637 		break;
    638 
    639 	default:
    640 		status = DDI_FAILURE;
    641 		break;
    642 	}
    643 
    644 	if (cmd != DDI_DETACH)
    645 		goto hxge_detach_exit;
    646 
    647 	/*
    648 	 * Stop the xcvr polling.
    649 	 */
    650 	hxgep->suspended = cmd;
    651 
    652 	if (hxgep->mach && (status = mac_unregister(hxgep->mach)) != 0) {
    653 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    654 		    "<== hxge_detach status = 0x%08X", status));
    655 		return (DDI_FAILURE);
    656 	}
    657 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
    658 	    "<== hxge_detach (mac_unregister) status = 0x%08X", status));
    659 
    660 	hxge_unattach(hxgep);
    661 	hxgep = NULL;
    662 
    663 hxge_detach_exit:
    664 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_detach status = 0x%08X",
    665 	    status));
    666 
    667 	return (status);
    668 }
    669 
    670 static void
    671 hxge_unattach(p_hxge_t hxgep)
    672 {
    673 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_unattach"));
    674 
    675 	if (hxgep == NULL || hxgep->dev_regs == NULL) {
    676 		return;
    677 	}
    678 
    679 	if (hxgep->hxge_hw_p) {
    680 		hxge_uninit_common_dev(hxgep);
    681 		hxgep->hxge_hw_p = NULL;
    682 	}
    683 
    684 	if (hxgep->hxge_timerid) {
    685 		hxge_stop_timer(hxgep, hxgep->hxge_timerid);
    686 		hxgep->hxge_timerid = 0;
    687 	}
    688 
    689 	/* Stop interrupts. */
    690 	hxge_intrs_disable(hxgep);
    691 
    692 	/* Stop any further interrupts. */
    693 	hxge_remove_intrs(hxgep);
    694 
    695 	/* Stop the device and free resources. */
    696 	hxge_destroy_dev(hxgep);
    697 
    698 	/* Tear down the ndd parameters setup. */
    699 	hxge_destroy_param(hxgep);
    700 
    701 	/* Tear down the kstat setup. */
    702 	hxge_destroy_kstats(hxgep);
    703 
    704 	/*
    705 	 * Remove the list of ndd parameters which were setup during attach.
    706 	 */
    707 	if (hxgep->dip) {
    708 		HXGE_DEBUG_MSG((hxgep, OBP_CTL,
    709 		    " hxge_unattach: remove all properties"));
    710 		(void) ddi_prop_remove_all(hxgep->dip);
    711 	}
    712 
    713 	/*
    714 	 * Reset RDC, TDC, PFC, and VMAC blocks from PEU to clear any
    715 	 * previous state before unmapping the registers.
    716 	 */
    717 	HXGE_REG_WR32(hxgep->hpi_handle, BLOCK_RESET, 0x0000001E);
    718 	HXGE_DELAY(1000);
    719 
    720 	/*
    721 	 * Unmap the register setup.
    722 	 */
    723 	hxge_unmap_regs(hxgep);
    724 
    725 	hxge_fm_fini(hxgep);
    726 
    727 	/* Destroy all mutexes.  */
    728 	hxge_destroy_mutexes(hxgep);
    729 
    730 	/*
    731 	 * Free the soft state data structures allocated with this instance.
    732 	 */
    733 	ddi_soft_state_free(hxge_list, hxgep->instance);
    734 
    735 	HXGE_DEBUG_MSG((NULL, DDI_CTL, "<== hxge_unattach"));
    736 }
    737 
    738 static hxge_status_t
    739 hxge_map_regs(p_hxge_t hxgep)
    740 {
    741 	int		ddi_status = DDI_SUCCESS;
    742 	p_dev_regs_t	dev_regs;
    743 
    744 #ifdef	HXGE_DEBUG
    745 	char		*sysname;
    746 #endif
    747 
    748 	off_t		regsize;
    749 	hxge_status_t	status = HXGE_OK;
    750 	int		nregs;
    751 
    752 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_map_regs"));
    753 
    754 	if (ddi_dev_nregs(hxgep->dip, &nregs) != DDI_SUCCESS)
    755 		return (HXGE_ERROR);
    756 
    757 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "hxge_map_regs: nregs: %d", nregs));
    758 
    759 	hxgep->dev_regs = NULL;
    760 	dev_regs = KMEM_ZALLOC(sizeof (dev_regs_t), KM_SLEEP);
    761 	dev_regs->hxge_regh = NULL;
    762 	dev_regs->hxge_pciregh = NULL;
    763 	dev_regs->hxge_msix_regh = NULL;
    764 
    765 	(void) ddi_dev_regsize(hxgep->dip, 0, &regsize);
    766 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
    767 	    "hxge_map_regs: pci config size 0x%x", regsize));
    768 
    769 	ddi_status = ddi_regs_map_setup(hxgep->dip, 0,
    770 	    (caddr_t *)&(dev_regs->hxge_pciregp), 0, 0,
    771 	    &hxge_dev_reg_acc_attr, &dev_regs->hxge_pciregh);
    772 	if (ddi_status != DDI_SUCCESS) {
    773 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    774 		    "ddi_map_regs, hxge bus config regs failed"));
    775 		goto hxge_map_regs_fail0;
    776 	}
    777 
    778 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
    779 	    "hxge_map_reg: PCI config addr 0x%0llx handle 0x%0llx",
    780 	    dev_regs->hxge_pciregp,
    781 	    dev_regs->hxge_pciregh));
    782 
    783 	(void) ddi_dev_regsize(hxgep->dip, 1, &regsize);
    784 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
    785 	    "hxge_map_regs: pio size 0x%x", regsize));
    786 
    787 	/* set up the device mapped register */
    788 	ddi_status = ddi_regs_map_setup(hxgep->dip, 1,
    789 	    (caddr_t *)&(dev_regs->hxge_regp), 0, 0,
    790 	    &hxge_dev_reg_acc_attr, &dev_regs->hxge_regh);
    791 
    792 	if (ddi_status != DDI_SUCCESS) {
    793 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    794 		    "ddi_map_regs for Hydra global reg failed"));
    795 		goto hxge_map_regs_fail1;
    796 	}
    797 
    798 	/* set up the msi/msi-x mapped register */
    799 	(void) ddi_dev_regsize(hxgep->dip, 2, &regsize);
    800 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
    801 	    "hxge_map_regs: msix size 0x%x", regsize));
    802 
    803 	ddi_status = ddi_regs_map_setup(hxgep->dip, 2,
    804 	    (caddr_t *)&(dev_regs->hxge_msix_regp), 0, 0,
    805 	    &hxge_dev_reg_acc_attr, &dev_regs->hxge_msix_regh);
    806 
    807 	if (ddi_status != DDI_SUCCESS) {
    808 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    809 		    "ddi_map_regs for msi reg failed"));
    810 		goto hxge_map_regs_fail2;
    811 	}
    812 
    813 	hxgep->dev_regs = dev_regs;
    814 
    815 	HPI_PCI_ACC_HANDLE_SET(hxgep, dev_regs->hxge_pciregh);
    816 	HPI_PCI_ADD_HANDLE_SET(hxgep, (hpi_reg_ptr_t)dev_regs->hxge_pciregp);
    817 	HPI_MSI_ACC_HANDLE_SET(hxgep, dev_regs->hxge_msix_regh);
    818 	HPI_MSI_ADD_HANDLE_SET(hxgep, (hpi_reg_ptr_t)dev_regs->hxge_msix_regp);
    819 
    820 	HPI_ACC_HANDLE_SET(hxgep, dev_regs->hxge_regh);
    821 	HPI_ADD_HANDLE_SET(hxgep, (hpi_reg_ptr_t)dev_regs->hxge_regp);
    822 
    823 	HPI_REG_ACC_HANDLE_SET(hxgep, dev_regs->hxge_regh);
    824 	HPI_REG_ADD_HANDLE_SET(hxgep, (hpi_reg_ptr_t)dev_regs->hxge_regp);
    825 
    826 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "hxge_map_reg: hardware addr 0x%0llx "
    827 	    " handle 0x%0llx", dev_regs->hxge_regp, dev_regs->hxge_regh));
    828 
    829 	goto hxge_map_regs_exit;
    830 
    831 hxge_map_regs_fail3:
    832 	if (dev_regs->hxge_msix_regh) {
    833 		ddi_regs_map_free(&dev_regs->hxge_msix_regh);
    834 	}
    835 
    836 hxge_map_regs_fail2:
    837 	if (dev_regs->hxge_regh) {
    838 		ddi_regs_map_free(&dev_regs->hxge_regh);
    839 	}
    840 
    841 hxge_map_regs_fail1:
    842 	if (dev_regs->hxge_pciregh) {
    843 		ddi_regs_map_free(&dev_regs->hxge_pciregh);
    844 	}
    845 
    846 hxge_map_regs_fail0:
    847 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "Freeing register set memory"));
    848 	kmem_free(dev_regs, sizeof (dev_regs_t));
    849 
    850 hxge_map_regs_exit:
    851 	if (ddi_status != DDI_SUCCESS)
    852 		status |= (HXGE_ERROR | HXGE_DDI_FAILED);
    853 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_map_regs"));
    854 	return (status);
    855 }
    856 
    857 static void
    858 hxge_unmap_regs(p_hxge_t hxgep)
    859 {
    860 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_unmap_regs"));
    861 	if (hxgep->dev_regs) {
    862 		if (hxgep->dev_regs->hxge_pciregh) {
    863 			HXGE_DEBUG_MSG((hxgep, DDI_CTL,
    864 			    "==> hxge_unmap_regs: bus"));
    865 			ddi_regs_map_free(&hxgep->dev_regs->hxge_pciregh);
    866 			hxgep->dev_regs->hxge_pciregh = NULL;
    867 		}
    868 
    869 		if (hxgep->dev_regs->hxge_regh) {
    870 			HXGE_DEBUG_MSG((hxgep, DDI_CTL,
    871 			    "==> hxge_unmap_regs: device registers"));
    872 			ddi_regs_map_free(&hxgep->dev_regs->hxge_regh);
    873 			hxgep->dev_regs->hxge_regh = NULL;
    874 		}
    875 
    876 		if (hxgep->dev_regs->hxge_msix_regh) {
    877 			HXGE_DEBUG_MSG((hxgep, DDI_CTL,
    878 			    "==> hxge_unmap_regs: device interrupts"));
    879 			ddi_regs_map_free(&hxgep->dev_regs->hxge_msix_regh);
    880 			hxgep->dev_regs->hxge_msix_regh = NULL;
    881 		}
    882 		kmem_free(hxgep->dev_regs, sizeof (dev_regs_t));
    883 		hxgep->dev_regs = NULL;
    884 	}
    885 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_unmap_regs"));
    886 }
    887 
    888 static hxge_status_t
    889 hxge_setup_mutexes(p_hxge_t hxgep)
    890 {
    891 	int		ddi_status = DDI_SUCCESS;
    892 	hxge_status_t	status = HXGE_OK;
    893 
    894 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_setup_mutexes"));
    895 
    896 	/*
    897 	 * Get the interrupt cookie so the mutexes can be Initialised.
    898 	 */
    899 	ddi_status = ddi_get_iblock_cookie(hxgep->dip, 0,
    900 	    &hxgep->interrupt_cookie);
    901 
    902 	if (ddi_status != DDI_SUCCESS) {
    903 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    904 		    "<== hxge_setup_mutexes: failed 0x%x", ddi_status));
    905 		goto hxge_setup_mutexes_exit;
    906 	}
    907 
    908 	/*
    909 	 * Initialize mutex's for this device.
    910 	 */
    911 	MUTEX_INIT(hxgep->genlock, NULL,
    912 	    MUTEX_DRIVER, (void *) hxgep->interrupt_cookie);
    913 	MUTEX_INIT(&hxgep->vmac_lock, NULL,
    914 	    MUTEX_DRIVER, (void *) hxgep->interrupt_cookie);
    915 	MUTEX_INIT(&hxgep->ouraddr_lock, NULL,
    916 	    MUTEX_DRIVER, (void *) hxgep->interrupt_cookie);
    917 	RW_INIT(&hxgep->filter_lock, NULL,
    918 	    RW_DRIVER, (void *) hxgep->interrupt_cookie);
    919 	MUTEX_INIT(&hxgep->pio_lock, NULL,
    920 	    MUTEX_DRIVER, (void *) hxgep->interrupt_cookie);
    921 	MUTEX_INIT(&hxgep->timeout.lock, NULL,
    922 	    MUTEX_DRIVER, (void *) hxgep->interrupt_cookie);
    923 
    924 hxge_setup_mutexes_exit:
    925 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
    926 	    "<== hxge_setup_mutexes status = %x", status));
    927 
    928 	if (ddi_status != DDI_SUCCESS)
    929 		status |= (HXGE_ERROR | HXGE_DDI_FAILED);
    930 
    931 	return (status);
    932 }
    933 
    934 static void
    935 hxge_destroy_mutexes(p_hxge_t hxgep)
    936 {
    937 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_destroy_mutexes"));
    938 	RW_DESTROY(&hxgep->filter_lock);
    939 	MUTEX_DESTROY(&hxgep->vmac_lock);
    940 	MUTEX_DESTROY(&hxgep->ouraddr_lock);
    941 	MUTEX_DESTROY(hxgep->genlock);
    942 	MUTEX_DESTROY(&hxgep->pio_lock);
    943 	MUTEX_DESTROY(&hxgep->timeout.lock);
    944 
    945 	if (hxge_debug_init == 1) {
    946 		MUTEX_DESTROY(&hxgedebuglock);
    947 		hxge_debug_init = 0;
    948 	}
    949 
    950 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_destroy_mutexes"));
    951 }
    952 
    953 hxge_status_t
    954 hxge_init(p_hxge_t hxgep)
    955 {
    956 	hxge_status_t status = HXGE_OK;
    957 
    958 	HXGE_DEBUG_MSG((hxgep, STR_CTL, "==> hxge_init"));
    959 
    960 	if (hxgep->drv_state & STATE_HW_INITIALIZED) {
    961 		return (status);
    962 	}
    963 
    964 	/*
    965 	 * Allocate system memory for the receive/transmit buffer blocks and
    966 	 * receive/transmit descriptor rings.
    967 	 */
    968 	status = hxge_alloc_mem_pool(hxgep);
    969 	if (status != HXGE_OK) {
    970 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "alloc mem failed\n"));
    971 		goto hxge_init_fail1;
    972 	}
    973 
    974 	/*
    975 	 * Initialize and enable TXDMA channels.
    976 	 */
    977 	status = hxge_init_txdma_channels(hxgep);
    978 	if (status != HXGE_OK) {
    979 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "init txdma failed\n"));
    980 		goto hxge_init_fail3;
    981 	}
    982 
    983 	/*
    984 	 * Initialize and enable RXDMA channels.
    985 	 */
    986 	status = hxge_init_rxdma_channels(hxgep);
    987 	if (status != HXGE_OK) {
    988 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "init rxdma failed\n"));
    989 		goto hxge_init_fail4;
    990 	}
    991 
    992 	/*
    993 	 * Initialize TCAM
    994 	 */
    995 	status = hxge_classify_init(hxgep);
    996 	if (status != HXGE_OK) {
    997 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "init classify failed\n"));
    998 		goto hxge_init_fail5;
    999 	}
   1000 
   1001 	/*
   1002 	 * Initialize the VMAC block.
   1003 	 */
   1004 	status = hxge_vmac_init(hxgep);
   1005 	if (status != HXGE_OK) {
   1006 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "init MAC failed\n"));
   1007 		goto hxge_init_fail5;
   1008 	}
   1009 
   1010 	/* Bringup - this may be unnecessary when PXE and FCODE available */
   1011 	status = hxge_pfc_set_default_mac_addr(hxgep);
   1012 	if (status != HXGE_OK) {
   1013 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   1014 		    "Default Address Failure\n"));
   1015 		goto hxge_init_fail5;
   1016 	}
   1017 
   1018 	/*
   1019 	 * Enable hardware interrupts.
   1020 	 */
   1021 	hxge_intr_hw_enable(hxgep);
   1022 	hxgep->drv_state |= STATE_HW_INITIALIZED;
   1023 
   1024 	goto hxge_init_exit;
   1025 
   1026 hxge_init_fail5:
   1027 	hxge_uninit_rxdma_channels(hxgep);
   1028 hxge_init_fail4:
   1029 	hxge_uninit_txdma_channels(hxgep);
   1030 hxge_init_fail3:
   1031 	hxge_free_mem_pool(hxgep);
   1032 hxge_init_fail1:
   1033 	HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   1034 	    "<== hxge_init status (failed) = 0x%08x", status));
   1035 	return (status);
   1036 
   1037 hxge_init_exit:
   1038 
   1039 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_init status = 0x%08x",
   1040 	    status));
   1041 
   1042 	return (status);
   1043 }
   1044 
   1045 timeout_id_t
   1046 hxge_start_timer(p_hxge_t hxgep, fptrv_t func, int msec)
   1047 {
   1048 	if ((hxgep->suspended == 0) || (hxgep->suspended == DDI_RESUME)) {
   1049 		return (timeout(func, (caddr_t)hxgep,
   1050 		    drv_usectohz(1000 * msec)));
   1051 	}
   1052 	return (NULL);
   1053 }
   1054 
   1055 /*ARGSUSED*/
   1056 void
   1057 hxge_stop_timer(p_hxge_t hxgep, timeout_id_t timerid)
   1058 {
   1059 	if (timerid) {
   1060 		(void) untimeout(timerid);
   1061 	}
   1062 }
   1063 
   1064 void
   1065 hxge_uninit(p_hxge_t hxgep)
   1066 {
   1067 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_uninit"));
   1068 
   1069 	if (!(hxgep->drv_state & STATE_HW_INITIALIZED)) {
   1070 		HXGE_DEBUG_MSG((hxgep, DDI_CTL,
   1071 		    "==> hxge_uninit: not initialized"));
   1072 		HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_uninit"));
   1073 		return;
   1074 	}
   1075 
   1076 	/* Stop timer */
   1077 	if (hxgep->hxge_timerid) {
   1078 		hxge_stop_timer(hxgep, hxgep->hxge_timerid);
   1079 		hxgep->hxge_timerid = 0;
   1080 	}
   1081 
   1082 	(void) hxge_intr_hw_disable(hxgep);
   1083 
   1084 	/* Reset the receive VMAC side.  */
   1085 	(void) hxge_rx_vmac_disable(hxgep);
   1086 
   1087 	/* Free classification resources */
   1088 	(void) hxge_classify_uninit(hxgep);
   1089 
   1090 	/* Reset the transmit/receive DMA side.  */
   1091 	(void) hxge_txdma_hw_mode(hxgep, HXGE_DMA_STOP);
   1092 	(void) hxge_rxdma_hw_mode(hxgep, HXGE_DMA_STOP);
   1093 
   1094 	hxge_uninit_txdma_channels(hxgep);
   1095 	hxge_uninit_rxdma_channels(hxgep);
   1096 
   1097 	/* Reset the transmit VMAC side.  */
   1098 	(void) hxge_tx_vmac_disable(hxgep);
   1099 
   1100 	hxge_free_mem_pool(hxgep);
   1101 
   1102 	hxgep->drv_state &= ~STATE_HW_INITIALIZED;
   1103 
   1104 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_uninit"));
   1105 }
   1106 
   1107 /*ARGSUSED*/
   1108 /*VARARGS*/
   1109 void
   1110 hxge_debug_msg(p_hxge_t hxgep, uint64_t level, char *fmt, ...)
   1111 {
   1112 	char		msg_buffer[1048];
   1113 	char		prefix_buffer[32];
   1114 	int		instance;
   1115 	uint64_t	debug_level;
   1116 	int		cmn_level = CE_CONT;
   1117 	va_list		ap;
   1118 
   1119 	debug_level = (hxgep == NULL) ? hxge_debug_level :
   1120 	    hxgep->hxge_debug_level;
   1121 
   1122 	if ((level & debug_level) || (level == HXGE_NOTE) ||
   1123 	    (level == HXGE_ERR_CTL)) {
   1124 		/* do the msg processing */
   1125 		if (hxge_debug_init == 0) {
   1126 			MUTEX_INIT(&hxgedebuglock, NULL, MUTEX_DRIVER, NULL);
   1127 			hxge_debug_init = 1;
   1128 		}
   1129 
   1130 		MUTEX_ENTER(&hxgedebuglock);
   1131 
   1132 		if ((level & HXGE_NOTE)) {
   1133 			cmn_level = CE_NOTE;
   1134 		}
   1135 
   1136 		if (level & HXGE_ERR_CTL) {
   1137 			cmn_level = CE_WARN;
   1138 		}
   1139 
   1140 		va_start(ap, fmt);
   1141 		(void) vsprintf(msg_buffer, fmt, ap);
   1142 		va_end(ap);
   1143 
   1144 		if (hxgep == NULL) {
   1145 			instance = -1;
   1146 			(void) sprintf(prefix_buffer, "%s :", "hxge");
   1147 		} else {
   1148 			instance = hxgep->instance;
   1149 			(void) sprintf(prefix_buffer,
   1150 			    "%s%d :", "hxge", instance);
   1151 		}
   1152 
   1153 		MUTEX_EXIT(&hxgedebuglock);
   1154 		cmn_err(cmn_level, "%s %s\n", prefix_buffer, msg_buffer);
   1155 	}
   1156 }
   1157 
   1158 char *
   1159 hxge_dump_packet(char *addr, int size)
   1160 {
   1161 	uchar_t		*ap = (uchar_t *)addr;
   1162 	int		i;
   1163 	static char	etherbuf[1024];
   1164 	char		*cp = etherbuf;
   1165 	char		digits[] = "0123456789abcdef";
   1166 
   1167 	if (!size)
   1168 		size = 60;
   1169 
   1170 	if (size > MAX_DUMP_SZ) {
   1171 		/* Dump the leading bytes */
   1172 		for (i = 0; i < MAX_DUMP_SZ / 2; i++) {
   1173 			if (*ap > 0x0f)
   1174 				*cp++ = digits[*ap >> 4];
   1175 			*cp++ = digits[*ap++ & 0xf];
   1176 			*cp++ = ':';
   1177 		}
   1178 		for (i = 0; i < 20; i++)
   1179 			*cp++ = '.';
   1180 		/* Dump the last MAX_DUMP_SZ/2 bytes */
   1181 		ap = (uchar_t *)(addr + (size - MAX_DUMP_SZ / 2));
   1182 		for (i = 0; i < MAX_DUMP_SZ / 2; i++) {
   1183 			if (*ap > 0x0f)
   1184 				*cp++ = digits[*ap >> 4];
   1185 			*cp++ = digits[*ap++ & 0xf];
   1186 			*cp++ = ':';
   1187 		}
   1188 	} else {
   1189 		for (i = 0; i < size; i++) {
   1190 			if (*ap > 0x0f)
   1191 				*cp++ = digits[*ap >> 4];
   1192 			*cp++ = digits[*ap++ & 0xf];
   1193 			*cp++ = ':';
   1194 		}
   1195 	}
   1196 	*--cp = 0;
   1197 	return (etherbuf);
   1198 }
   1199 
   1200 static void
   1201 hxge_suspend(p_hxge_t hxgep)
   1202 {
   1203 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_suspend"));
   1204 
   1205 	/*
   1206 	 * Stop the link status timer before hxge_intrs_disable() to avoid
   1207 	 * accessing the the MSIX table simultaneously. Note that the timer
   1208 	 * routine polls for MSIX parity errors.
   1209 	 */
   1210 	MUTEX_ENTER(&hxgep->timeout.lock);
   1211 	if (hxgep->timeout.id)
   1212 		(void) untimeout(hxgep->timeout.id);
   1213 	MUTEX_EXIT(&hxgep->timeout.lock);
   1214 
   1215 	hxge_intrs_disable(hxgep);
   1216 	hxge_destroy_dev(hxgep);
   1217 
   1218 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_suspend"));
   1219 }
   1220 
   1221 static hxge_status_t
   1222 hxge_resume(p_hxge_t hxgep)
   1223 {
   1224 	hxge_status_t status = HXGE_OK;
   1225 
   1226 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_resume"));
   1227 	hxgep->suspended = DDI_RESUME;
   1228 
   1229 	(void) hxge_rxdma_hw_mode(hxgep, HXGE_DMA_START);
   1230 	(void) hxge_txdma_hw_mode(hxgep, HXGE_DMA_START);
   1231 
   1232 	(void) hxge_rx_vmac_enable(hxgep);
   1233 	(void) hxge_tx_vmac_enable(hxgep);
   1234 
   1235 	hxge_intrs_enable(hxgep);
   1236 
   1237 	hxgep->suspended = 0;
   1238 
   1239 	/*
   1240 	 * Resume the link status timer after hxge_intrs_enable to avoid
   1241 	 * accessing MSIX table simultaneously.
   1242 	 */
   1243 	MUTEX_ENTER(&hxgep->timeout.lock);
   1244 	hxgep->timeout.id = timeout(hxge_link_poll, (void *)hxgep,
   1245 	    hxgep->timeout.ticks);
   1246 	MUTEX_EXIT(&hxgep->timeout.lock);
   1247 
   1248 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
   1249 	    "<== hxge_resume status = 0x%x", status));
   1250 
   1251 	return (status);
   1252 }
   1253 
   1254 static hxge_status_t
   1255 hxge_setup_dev(p_hxge_t hxgep)
   1256 {
   1257 	hxge_status_t status = HXGE_OK;
   1258 
   1259 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_setup_dev"));
   1260 
   1261 	status = hxge_link_init(hxgep);
   1262 	if (fm_check_acc_handle(hxgep->dev_regs->hxge_regh) != DDI_FM_OK) {
   1263 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   1264 		    "Bad register acc handle"));
   1265 		status = HXGE_ERROR;
   1266 	}
   1267 
   1268 	if (status != HXGE_OK) {
   1269 		HXGE_DEBUG_MSG((hxgep, MAC_CTL,
   1270 		    " hxge_setup_dev status (link init 0x%08x)", status));
   1271 		goto hxge_setup_dev_exit;
   1272 	}
   1273 
   1274 hxge_setup_dev_exit:
   1275 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
   1276 	    "<== hxge_setup_dev status = 0x%08x", status));
   1277 
   1278 	return (status);
   1279 }
   1280 
   1281 static void
   1282 hxge_destroy_dev(p_hxge_t hxgep)
   1283 {
   1284 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_destroy_dev"));
   1285 
   1286 	(void) hxge_hw_stop(hxgep);
   1287 
   1288 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_destroy_dev"));
   1289 }
   1290 
   1291 static hxge_status_t
   1292 hxge_setup_system_dma_pages(p_hxge_t hxgep)
   1293 {
   1294 	int			ddi_status = DDI_SUCCESS;
   1295 	uint_t			count;
   1296 	ddi_dma_cookie_t	cookie;
   1297 	uint_t			iommu_pagesize;
   1298 	hxge_status_t		status = HXGE_OK;
   1299 
   1300 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_setup_system_dma_pages"));
   1301 
   1302 	hxgep->sys_page_sz = ddi_ptob(hxgep->dip, (ulong_t)1);
   1303 	iommu_pagesize = dvma_pagesize(hxgep->dip);
   1304 
   1305 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
   1306 	    " hxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
   1307 	    " default_block_size %d iommu_pagesize %d",
   1308 	    hxgep->sys_page_sz, ddi_ptob(hxgep->dip, (ulong_t)1),
   1309 	    hxgep->rx_default_block_size, iommu_pagesize));
   1310 
   1311 	if (iommu_pagesize != 0) {
   1312 		if (hxgep->sys_page_sz == iommu_pagesize) {
   1313 			/* Hydra support up to 8K pages */
   1314 			if (iommu_pagesize > 0x2000)
   1315 				hxgep->sys_page_sz = 0x2000;
   1316 		} else {
   1317 			if (hxgep->sys_page_sz > iommu_pagesize)
   1318 				hxgep->sys_page_sz = iommu_pagesize;
   1319 		}
   1320 	}
   1321 
   1322 	hxgep->sys_page_mask = ~(hxgep->sys_page_sz - 1);
   1323 
   1324 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
   1325 	    "==> hxge_setup_system_dma_pages: page %d (ddi_ptob %d) "
   1326 	    "default_block_size %d page mask %d",
   1327 	    hxgep->sys_page_sz, ddi_ptob(hxgep->dip, (ulong_t)1),
   1328 	    hxgep->rx_default_block_size, hxgep->sys_page_mask));
   1329 
   1330 	switch (hxgep->sys_page_sz) {
   1331 	default:
   1332 		hxgep->sys_page_sz = 0x1000;
   1333 		hxgep->sys_page_mask = ~(hxgep->sys_page_sz - 1);
   1334 		hxgep->rx_default_block_size = 0x1000;
   1335 		hxgep->rx_bksize_code = RBR_BKSIZE_4K;
   1336 		break;
   1337 	case 0x1000:
   1338 		hxgep->rx_default_block_size = 0x1000;
   1339 		hxgep->rx_bksize_code = RBR_BKSIZE_4K;
   1340 		break;
   1341 	case 0x2000:
   1342 		hxgep->rx_default_block_size = 0x2000;
   1343 		hxgep->rx_bksize_code = RBR_BKSIZE_8K;
   1344 		break;
   1345 	}
   1346 
   1347 	hxge_rx_dma_attr.dma_attr_align = hxgep->sys_page_sz;
   1348 	hxge_tx_dma_attr.dma_attr_align = hxgep->sys_page_sz;
   1349 
   1350 	/*
   1351 	 * Get the system DMA burst size.
   1352 	 */
   1353 	ddi_status = ddi_dma_alloc_handle(hxgep->dip, &hxge_tx_dma_attr,
   1354 	    DDI_DMA_DONTWAIT, 0, &hxgep->dmasparehandle);
   1355 	if (ddi_status != DDI_SUCCESS) {
   1356 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   1357 		    "ddi_dma_alloc_handle: failed status 0x%x", ddi_status));
   1358 		goto hxge_get_soft_properties_exit;
   1359 	}
   1360 
   1361 	ddi_status = ddi_dma_addr_bind_handle(hxgep->dmasparehandle, NULL,
   1362 	    (caddr_t)hxgep->dmasparehandle, sizeof (hxgep->dmasparehandle),
   1363 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT, DDI_DMA_DONTWAIT, 0,
   1364 	    &cookie, &count);
   1365 	if (ddi_status != DDI_DMA_MAPPED) {
   1366 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   1367 		    "Binding spare handle to find system burstsize failed."));
   1368 		ddi_status = DDI_FAILURE;
   1369 		goto hxge_get_soft_properties_fail1;
   1370 	}
   1371 
   1372 	hxgep->sys_burst_sz = ddi_dma_burstsizes(hxgep->dmasparehandle);
   1373 	(void) ddi_dma_unbind_handle(hxgep->dmasparehandle);
   1374 
   1375 hxge_get_soft_properties_fail1:
   1376 	ddi_dma_free_handle(&hxgep->dmasparehandle);
   1377 
   1378 hxge_get_soft_properties_exit:
   1379 
   1380 	if (ddi_status != DDI_SUCCESS)
   1381 		status |= (HXGE_ERROR | HXGE_DDI_FAILED);
   1382 
   1383 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
   1384 	    "<== hxge_setup_system_dma_pages status = 0x%08x", status));
   1385 
   1386 	return (status);
   1387 }
   1388 
   1389 static hxge_status_t
   1390 hxge_alloc_mem_pool(p_hxge_t hxgep)
   1391 {
   1392 	hxge_status_t status = HXGE_OK;
   1393 
   1394 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_alloc_mem_pool"));
   1395 
   1396 	status = hxge_alloc_rx_mem_pool(hxgep);
   1397 	if (status != HXGE_OK) {
   1398 		return (HXGE_ERROR);
   1399 	}
   1400 
   1401 	status = hxge_alloc_tx_mem_pool(hxgep);
   1402 	if (status != HXGE_OK) {
   1403 		hxge_free_rx_mem_pool(hxgep);
   1404 		return (HXGE_ERROR);
   1405 	}
   1406 
   1407 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_alloc_mem_pool"));
   1408 	return (HXGE_OK);
   1409 }
   1410 
   1411 static void
   1412 hxge_free_mem_pool(p_hxge_t hxgep)
   1413 {
   1414 	HXGE_DEBUG_MSG((hxgep, MEM_CTL, "==> hxge_free_mem_pool"));
   1415 
   1416 	hxge_free_rx_mem_pool(hxgep);
   1417 	hxge_free_tx_mem_pool(hxgep);
   1418 
   1419 	HXGE_DEBUG_MSG((hxgep, MEM_CTL, "<== hxge_free_mem_pool"));
   1420 }
   1421 
   1422 static hxge_status_t
   1423 hxge_alloc_rx_mem_pool(p_hxge_t hxgep)
   1424 {
   1425 	int			i, j;
   1426 	uint32_t		ndmas, st_rdc;
   1427 	p_hxge_dma_pt_cfg_t	p_all_cfgp;
   1428 	p_hxge_hw_pt_cfg_t	p_cfgp;
   1429 	p_hxge_dma_pool_t	dma_poolp;
   1430 	p_hxge_dma_common_t	*dma_buf_p;
   1431 	p_hxge_dma_pool_t	dma_rbr_cntl_poolp;
   1432 	p_hxge_dma_common_t	*dma_rbr_cntl_p;
   1433 	p_hxge_dma_pool_t	dma_rcr_cntl_poolp;
   1434 	p_hxge_dma_common_t	*dma_rcr_cntl_p;
   1435 	p_hxge_dma_pool_t	dma_mbox_cntl_poolp;
   1436 	p_hxge_dma_common_t	*dma_mbox_cntl_p;
   1437 	size_t			rx_buf_alloc_size;
   1438 	size_t			rx_rbr_cntl_alloc_size;
   1439 	size_t			rx_rcr_cntl_alloc_size;
   1440 	size_t			rx_mbox_cntl_alloc_size;
   1441 	uint32_t		*num_chunks;	/* per dma */
   1442 	hxge_status_t		status = HXGE_OK;
   1443 
   1444 	uint32_t		hxge_port_rbr_size;
   1445 	uint32_t		hxge_port_rbr_spare_size;
   1446 	uint32_t		hxge_port_rcr_size;
   1447 
   1448 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_alloc_rx_mem_pool"));
   1449 
   1450 	p_all_cfgp = (p_hxge_dma_pt_cfg_t)&hxgep->pt_config;
   1451 	p_cfgp = (p_hxge_hw_pt_cfg_t)&p_all_cfgp->hw_config;
   1452 	st_rdc = p_cfgp->start_rdc;
   1453 	ndmas = p_cfgp->max_rdcs;
   1454 
   1455 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   1456 	    " hxge_alloc_rx_mem_pool st_rdc %d ndmas %d", st_rdc, ndmas));
   1457 
   1458 	/*
   1459 	 * Allocate memory for each receive DMA channel.
   1460 	 */
   1461 	dma_poolp = (p_hxge_dma_pool_t)KMEM_ZALLOC(sizeof (hxge_dma_pool_t),
   1462 	    KM_SLEEP);
   1463 	dma_buf_p = (p_hxge_dma_common_t *)KMEM_ZALLOC(
   1464 	    sizeof (p_hxge_dma_common_t) * ndmas, KM_SLEEP);
   1465 
   1466 	dma_rbr_cntl_poolp = (p_hxge_dma_pool_t)
   1467 	    KMEM_ZALLOC(sizeof (hxge_dma_pool_t), KM_SLEEP);
   1468 	dma_rbr_cntl_p = (p_hxge_dma_common_t *)KMEM_ZALLOC(
   1469 	    sizeof (p_hxge_dma_common_t) * ndmas, KM_SLEEP);
   1470 	dma_rcr_cntl_poolp = (p_hxge_dma_pool_t)
   1471 	    KMEM_ZALLOC(sizeof (hxge_dma_pool_t), KM_SLEEP);
   1472 	dma_rcr_cntl_p = (p_hxge_dma_common_t *)KMEM_ZALLOC(
   1473 	    sizeof (p_hxge_dma_common_t) * ndmas, KM_SLEEP);
   1474 	dma_mbox_cntl_poolp = (p_hxge_dma_pool_t)
   1475 	    KMEM_ZALLOC(sizeof (hxge_dma_pool_t), KM_SLEEP);
   1476 	dma_mbox_cntl_p = (p_hxge_dma_common_t *)KMEM_ZALLOC(
   1477 	    sizeof (p_hxge_dma_common_t) * ndmas, KM_SLEEP);
   1478 
   1479 	num_chunks = (uint32_t *)KMEM_ZALLOC(sizeof (uint32_t) * ndmas,
   1480 	    KM_SLEEP);
   1481 
   1482 	/*
   1483 	 * Assume that each DMA channel will be configured with default block
   1484 	 * size. rbr block counts are mod of batch count (16).
   1485 	 */
   1486 	hxge_port_rbr_size = p_all_cfgp->rbr_size;
   1487 	hxge_port_rcr_size = p_all_cfgp->rcr_size;
   1488 
   1489 	if (!hxge_port_rbr_size) {
   1490 		hxge_port_rbr_size = HXGE_RBR_RBB_DEFAULT;
   1491 	}
   1492 
   1493 	if (hxge_port_rbr_size % HXGE_RXDMA_POST_BATCH) {
   1494 		hxge_port_rbr_size = (HXGE_RXDMA_POST_BATCH *
   1495 		    (hxge_port_rbr_size / HXGE_RXDMA_POST_BATCH + 1));
   1496 	}
   1497 
   1498 	p_all_cfgp->rbr_size = hxge_port_rbr_size;
   1499 	hxge_port_rbr_spare_size = hxge_rbr_spare_size;
   1500 
   1501 	if (hxge_port_rbr_spare_size % HXGE_RXDMA_POST_BATCH) {
   1502 		hxge_port_rbr_spare_size = (HXGE_RXDMA_POST_BATCH *
   1503 		    (hxge_port_rbr_spare_size / HXGE_RXDMA_POST_BATCH + 1));
   1504 	}
   1505 
   1506 	rx_buf_alloc_size = (hxgep->rx_default_block_size *
   1507 	    (hxge_port_rbr_size + hxge_port_rbr_spare_size));
   1508 
   1509 	/*
   1510 	 * Addresses of receive block ring, receive completion ring and the
   1511 	 * mailbox must be all cache-aligned (64 bytes).
   1512 	 */
   1513 	rx_rbr_cntl_alloc_size = hxge_port_rbr_size + hxge_port_rbr_spare_size;
   1514 	rx_rbr_cntl_alloc_size *= sizeof (rx_desc_t);
   1515 	rx_rcr_cntl_alloc_size = sizeof (rcr_entry_t) * hxge_port_rcr_size;
   1516 	rx_mbox_cntl_alloc_size = sizeof (rxdma_mailbox_t);
   1517 
   1518 	HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_alloc_rx_mem_pool: "
   1519 	    "hxge_port_rbr_size = %d hxge_port_rbr_spare_size = %d "
   1520 	    "hxge_port_rcr_size = %d rx_cntl_alloc_size = %d",
   1521 	    hxge_port_rbr_size, hxge_port_rbr_spare_size,
   1522 	    hxge_port_rcr_size, rx_cntl_alloc_size));
   1523 
   1524 	hxgep->hxge_port_rbr_size = hxge_port_rbr_size;
   1525 	hxgep->hxge_port_rcr_size = hxge_port_rcr_size;
   1526 
   1527 	/*
   1528 	 * Allocate memory for receive buffers and descriptor rings. Replace
   1529 	 * allocation functions with interface functions provided by the
   1530 	 * partition manager when it is available.
   1531 	 */
   1532 	/*
   1533 	 * Allocate memory for the receive buffer blocks.
   1534 	 */
   1535 	for (i = 0; i < ndmas; i++) {
   1536 		HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
   1537 		    " hxge_alloc_rx_mem_pool to alloc mem: "
   1538 		    " dma %d dma_buf_p %llx &dma_buf_p %llx",
   1539 		    i, dma_buf_p[i], &dma_buf_p[i]));
   1540 
   1541 		num_chunks[i] = 0;
   1542 
   1543 		status = hxge_alloc_rx_buf_dma(hxgep, st_rdc, &dma_buf_p[i],
   1544 		    rx_buf_alloc_size, hxgep->rx_default_block_size,
   1545 		    &num_chunks[i]);
   1546 		if (status != HXGE_OK) {
   1547 			break;
   1548 		}
   1549 
   1550 		st_rdc++;
   1551 		HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
   1552 		    " hxge_alloc_rx_mem_pool DONE  alloc mem: "
   1553 		    "dma %d dma_buf_p %llx &dma_buf_p %llx", i,
   1554 		    dma_buf_p[i], &dma_buf_p[i]));
   1555 	}
   1556 
   1557 	if (i < ndmas) {
   1558 		goto hxge_alloc_rx_mem_fail1;
   1559 	}
   1560 
   1561 	/*
   1562 	 * Allocate memory for descriptor rings and mailbox.
   1563 	 */
   1564 	st_rdc = p_cfgp->start_rdc;
   1565 	for (j = 0; j < ndmas; j++) {
   1566 		if ((status = hxge_alloc_rx_cntl_dma(hxgep, st_rdc,
   1567 		    &dma_rbr_cntl_p[j], &hxge_rx_rbr_desc_dma_attr,
   1568 		    rx_rbr_cntl_alloc_size)) != HXGE_OK) {
   1569 			break;
   1570 		}
   1571 
   1572 		if ((status = hxge_alloc_rx_cntl_dma(hxgep, st_rdc,
   1573 		    &dma_rcr_cntl_p[j], &hxge_rx_rcr_desc_dma_attr,
   1574 		    rx_rcr_cntl_alloc_size)) != HXGE_OK) {
   1575 			break;
   1576 		}
   1577 
   1578 		if ((status = hxge_alloc_rx_cntl_dma(hxgep, st_rdc,
   1579 		    &dma_mbox_cntl_p[j], &hxge_rx_mbox_dma_attr,
   1580 		    rx_mbox_cntl_alloc_size)) != HXGE_OK) {
   1581 			break;
   1582 		}
   1583 		st_rdc++;
   1584 	}
   1585 
   1586 	if (j < ndmas) {
   1587 		goto hxge_alloc_rx_mem_fail2;
   1588 	}
   1589 
   1590 	dma_poolp->ndmas = ndmas;
   1591 	dma_poolp->num_chunks = num_chunks;
   1592 	dma_poolp->buf_allocated = B_TRUE;
   1593 	hxgep->rx_buf_pool_p = dma_poolp;
   1594 	dma_poolp->dma_buf_pool_p = dma_buf_p;
   1595 
   1596 	dma_rbr_cntl_poolp->ndmas = ndmas;
   1597 	dma_rbr_cntl_poolp->buf_allocated = B_TRUE;
   1598 	hxgep->rx_rbr_cntl_pool_p = dma_rbr_cntl_poolp;
   1599 	dma_rbr_cntl_poolp->dma_buf_pool_p = dma_rbr_cntl_p;
   1600 
   1601 	dma_rcr_cntl_poolp->ndmas = ndmas;
   1602 	dma_rcr_cntl_poolp->buf_allocated = B_TRUE;
   1603 	hxgep->rx_rcr_cntl_pool_p = dma_rcr_cntl_poolp;
   1604 	dma_rcr_cntl_poolp->dma_buf_pool_p = dma_rcr_cntl_p;
   1605 
   1606 	dma_mbox_cntl_poolp->ndmas = ndmas;
   1607 	dma_mbox_cntl_poolp->buf_allocated = B_TRUE;
   1608 	hxgep->rx_mbox_cntl_pool_p = dma_mbox_cntl_poolp;
   1609 	dma_mbox_cntl_poolp->dma_buf_pool_p = dma_mbox_cntl_p;
   1610 
   1611 	goto hxge_alloc_rx_mem_pool_exit;
   1612 
   1613 hxge_alloc_rx_mem_fail2:
   1614 	/* Free control buffers */
   1615 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   1616 	    "==> hxge_alloc_rx_mem_pool: freeing control bufs (%d)", j));
   1617 	for (; j >= 0; j--) {
   1618 		hxge_free_rx_cntl_dma(hxgep,
   1619 		    (p_hxge_dma_common_t)dma_rbr_cntl_p[j]);
   1620 		hxge_free_rx_cntl_dma(hxgep,
   1621 		    (p_hxge_dma_common_t)dma_rcr_cntl_p[j]);
   1622 		hxge_free_rx_cntl_dma(hxgep,
   1623 		    (p_hxge_dma_common_t)dma_mbox_cntl_p[j]);
   1624 		HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   1625 		    "==> hxge_alloc_rx_mem_pool: control bufs freed (%d)", j));
   1626 	}
   1627 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   1628 	    "==> hxge_alloc_rx_mem_pool: control bufs freed (%d)", j));
   1629 
   1630 hxge_alloc_rx_mem_fail1:
   1631 	/* Free data buffers */
   1632 	i--;
   1633 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   1634 	    "==> hxge_alloc_rx_mem_pool: freeing data bufs (%d)", i));
   1635 	for (; i >= 0; i--) {
   1636 		hxge_free_rx_buf_dma(hxgep, (p_hxge_dma_common_t)dma_buf_p[i],
   1637 		    num_chunks[i]);
   1638 	}
   1639 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   1640 	    "==> hxge_alloc_rx_mem_pool: data bufs freed (%d)", i));
   1641 
   1642 	KMEM_FREE(num_chunks, sizeof (uint32_t) * ndmas);
   1643 	KMEM_FREE(dma_poolp, sizeof (hxge_dma_pool_t));
   1644 	KMEM_FREE(dma_buf_p, ndmas * sizeof (p_hxge_dma_common_t));
   1645 	KMEM_FREE(dma_rbr_cntl_poolp, sizeof (hxge_dma_pool_t));
   1646 	KMEM_FREE(dma_rbr_cntl_p, ndmas * sizeof (p_hxge_dma_common_t));
   1647 	KMEM_FREE(dma_rcr_cntl_poolp, sizeof (hxge_dma_pool_t));
   1648 	KMEM_FREE(dma_rcr_cntl_p, ndmas * sizeof (p_hxge_dma_common_t));
   1649 	KMEM_FREE(dma_mbox_cntl_poolp, sizeof (hxge_dma_pool_t));
   1650 	KMEM_FREE(dma_mbox_cntl_p, ndmas * sizeof (p_hxge_dma_common_t));
   1651 
   1652 hxge_alloc_rx_mem_pool_exit:
   1653 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   1654 	    "<== hxge_alloc_rx_mem_pool:status 0x%08x", status));
   1655 
   1656 	return (status);
   1657 }
   1658 
   1659 static void
   1660 hxge_free_rx_mem_pool(p_hxge_t hxgep)
   1661 {
   1662 	uint32_t		i, ndmas;
   1663 	p_hxge_dma_pool_t	dma_poolp;
   1664 	p_hxge_dma_common_t	*dma_buf_p;
   1665 	p_hxge_dma_pool_t	dma_rbr_cntl_poolp;
   1666 	p_hxge_dma_common_t	*dma_rbr_cntl_p;
   1667 	p_hxge_dma_pool_t	dma_rcr_cntl_poolp;
   1668 	p_hxge_dma_common_t	*dma_rcr_cntl_p;
   1669 	p_hxge_dma_pool_t	dma_mbox_cntl_poolp;
   1670 	p_hxge_dma_common_t	*dma_mbox_cntl_p;
   1671 	uint32_t		*num_chunks;
   1672 
   1673 	HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "==> hxge_free_rx_mem_pool"));
   1674 
   1675 	dma_poolp = hxgep->rx_buf_pool_p;
   1676 	if (dma_poolp == NULL || (!dma_poolp->buf_allocated)) {
   1677 		HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "<== hxge_free_rx_mem_pool "
   1678 		    "(null rx buf pool or buf not allocated"));
   1679 		return;
   1680 	}
   1681 
   1682 	dma_rbr_cntl_poolp = hxgep->rx_rbr_cntl_pool_p;
   1683 	if (dma_rbr_cntl_poolp == NULL ||
   1684 	    (!dma_rbr_cntl_poolp->buf_allocated)) {
   1685 		HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
   1686 		    "<== hxge_free_rx_mem_pool "
   1687 		    "(null rbr cntl buf pool or rbr cntl buf not allocated"));
   1688 		return;
   1689 	}
   1690 
   1691 	dma_rcr_cntl_poolp = hxgep->rx_rcr_cntl_pool_p;
   1692 	if (dma_rcr_cntl_poolp == NULL ||
   1693 	    (!dma_rcr_cntl_poolp->buf_allocated)) {
   1694 		HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
   1695 		    "<== hxge_free_rx_mem_pool "
   1696 		    "(null rcr cntl buf pool or rcr cntl buf not allocated"));
   1697 		return;
   1698 	}
   1699 
   1700 	dma_mbox_cntl_poolp = hxgep->rx_mbox_cntl_pool_p;
   1701 	if (dma_mbox_cntl_poolp == NULL ||
   1702 	    (!dma_mbox_cntl_poolp->buf_allocated)) {
   1703 		HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
   1704 		    "<== hxge_free_rx_mem_pool "
   1705 		    "(null mbox cntl buf pool or mbox cntl buf not allocated"));
   1706 		return;
   1707 	}
   1708 
   1709 	dma_buf_p = dma_poolp->dma_buf_pool_p;
   1710 	num_chunks = dma_poolp->num_chunks;
   1711 
   1712 	dma_rbr_cntl_p = dma_rbr_cntl_poolp->dma_buf_pool_p;
   1713 	dma_rcr_cntl_p = dma_rcr_cntl_poolp->dma_buf_pool_p;
   1714 	dma_mbox_cntl_p = dma_mbox_cntl_poolp->dma_buf_pool_p;
   1715 	ndmas = dma_rbr_cntl_poolp->ndmas;
   1716 
   1717 	for (i = 0; i < ndmas; i++) {
   1718 		hxge_free_rx_buf_dma(hxgep, dma_buf_p[i], num_chunks[i]);
   1719 	}
   1720 
   1721 	for (i = 0; i < ndmas; i++) {
   1722 		hxge_free_rx_cntl_dma(hxgep, dma_rbr_cntl_p[i]);
   1723 		hxge_free_rx_cntl_dma(hxgep, dma_rcr_cntl_p[i]);
   1724 		hxge_free_rx_cntl_dma(hxgep, dma_mbox_cntl_p[i]);
   1725 	}
   1726 
   1727 	for (i = 0; i < ndmas; i++) {
   1728 		KMEM_FREE(dma_buf_p[i],
   1729 		    sizeof (hxge_dma_common_t) * HXGE_DMA_BLOCK);
   1730 		KMEM_FREE(dma_rbr_cntl_p[i], sizeof (hxge_dma_common_t));
   1731 		KMEM_FREE(dma_rcr_cntl_p[i], sizeof (hxge_dma_common_t));
   1732 		KMEM_FREE(dma_mbox_cntl_p[i], sizeof (hxge_dma_common_t));
   1733 	}
   1734 
   1735 	KMEM_FREE(num_chunks, sizeof (uint32_t) * ndmas);
   1736 	KMEM_FREE(dma_rbr_cntl_p, ndmas * sizeof (p_hxge_dma_common_t));
   1737 	KMEM_FREE(dma_rbr_cntl_poolp, sizeof (hxge_dma_pool_t));
   1738 	KMEM_FREE(dma_rcr_cntl_p, ndmas * sizeof (p_hxge_dma_common_t));
   1739 	KMEM_FREE(dma_rcr_cntl_poolp, sizeof (hxge_dma_pool_t));
   1740 	KMEM_FREE(dma_mbox_cntl_p, ndmas * sizeof (p_hxge_dma_common_t));
   1741 	KMEM_FREE(dma_mbox_cntl_poolp, sizeof (hxge_dma_pool_t));
   1742 	KMEM_FREE(dma_buf_p, ndmas * sizeof (p_hxge_dma_common_t));
   1743 	KMEM_FREE(dma_poolp, sizeof (hxge_dma_pool_t));
   1744 
   1745 	hxgep->rx_buf_pool_p = NULL;
   1746 	hxgep->rx_rbr_cntl_pool_p = NULL;
   1747 	hxgep->rx_rcr_cntl_pool_p = NULL;
   1748 	hxgep->rx_mbox_cntl_pool_p = NULL;
   1749 
   1750 	HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "<== hxge_free_rx_mem_pool"));
   1751 }
   1752 
   1753 static hxge_status_t
   1754 hxge_alloc_rx_buf_dma(p_hxge_t hxgep, uint16_t dma_channel,
   1755     p_hxge_dma_common_t *dmap,
   1756     size_t alloc_size, size_t block_size, uint32_t *num_chunks)
   1757 {
   1758 	p_hxge_dma_common_t	rx_dmap;
   1759 	hxge_status_t		status = HXGE_OK;
   1760 	size_t			total_alloc_size;
   1761 	size_t			allocated = 0;
   1762 	int			i, size_index, array_size;
   1763 
   1764 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_alloc_rx_buf_dma"));
   1765 
   1766 	rx_dmap = (p_hxge_dma_common_t)
   1767 	    KMEM_ZALLOC(sizeof (hxge_dma_common_t) * HXGE_DMA_BLOCK, KM_SLEEP);
   1768 
   1769 	HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
   1770 	    " alloc_rx_buf_dma rdc %d asize %x bsize %x bbuf %llx ",
   1771 	    dma_channel, alloc_size, block_size, dmap));
   1772 
   1773 	total_alloc_size = alloc_size;
   1774 
   1775 	i = 0;
   1776 	size_index = 0;
   1777 	array_size = sizeof (alloc_sizes) / sizeof (size_t);
   1778 	while ((size_index < array_size) &&
   1779 	    (alloc_sizes[size_index] < alloc_size))
   1780 		size_index++;
   1781 	if (size_index >= array_size) {
   1782 		size_index = array_size - 1;
   1783 	}
   1784 
   1785 	while ((allocated < total_alloc_size) &&
   1786 	    (size_index >= 0) && (i < HXGE_DMA_BLOCK)) {
   1787 		rx_dmap[i].dma_chunk_index = i;
   1788 		rx_dmap[i].block_size = block_size;
   1789 		rx_dmap[i].alength = alloc_sizes[size_index];
   1790 		rx_dmap[i].orig_alength = rx_dmap[i].alength;
   1791 		rx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
   1792 		rx_dmap[i].dma_channel = dma_channel;
   1793 		rx_dmap[i].contig_alloc_type = B_FALSE;
   1794 
   1795 		HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
   1796 		    "alloc_rx_buf_dma rdc %d chunk %d bufp %llx size %x "
   1797 		    "i %d nblocks %d alength %d",
   1798 		    dma_channel, i, &rx_dmap[i], block_size,
   1799 		    i, rx_dmap[i].nblocks, rx_dmap[i].alength));
   1800 		status = hxge_dma_mem_alloc(hxgep, hxge_force_dma,
   1801 		    &hxge_rx_dma_attr, rx_dmap[i].alength,
   1802 		    &hxge_dev_buf_dma_acc_attr,
   1803 		    DDI_DMA_READ | DDI_DMA_STREAMING,
   1804 		    (p_hxge_dma_common_t)(&rx_dmap[i]));
   1805 		if (status != HXGE_OK) {
   1806 			HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   1807 			    " hxge_alloc_rx_buf_dma: Alloc Failed: "
   1808 			    " for size: %d", alloc_sizes[size_index]));
   1809 			size_index--;
   1810 		} else {
   1811 			HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   1812 			    " alloc_rx_buf_dma allocated rdc %d "
   1813 			    "chunk %d size %x dvma %x bufp %llx ",
   1814 			    dma_channel, i, rx_dmap[i].alength,
   1815 			    rx_dmap[i].ioaddr_pp, &rx_dmap[i]));
   1816 			i++;
   1817 			allocated += alloc_sizes[size_index];
   1818 		}
   1819 	}
   1820 
   1821 	if (allocated < total_alloc_size) {
   1822 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   1823 		    " hxge_alloc_rx_buf_dma failed due to"
   1824 		    " allocated(%d) < required(%d)",
   1825 		    allocated, total_alloc_size));
   1826 		goto hxge_alloc_rx_mem_fail1;
   1827 	}
   1828 
   1829 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   1830 	    " alloc_rx_buf_dma rdc %d allocated %d chunks", dma_channel, i));
   1831 
   1832 	*num_chunks = i;
   1833 	*dmap = rx_dmap;
   1834 
   1835 	goto hxge_alloc_rx_mem_exit;
   1836 
   1837 hxge_alloc_rx_mem_fail1:
   1838 	KMEM_FREE(rx_dmap, sizeof (hxge_dma_common_t) * HXGE_DMA_BLOCK);
   1839 
   1840 hxge_alloc_rx_mem_exit:
   1841 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   1842 	    "<== hxge_alloc_rx_buf_dma status 0x%08x", status));
   1843 
   1844 	return (status);
   1845 }
   1846 
   1847 /*ARGSUSED*/
   1848 static void
   1849 hxge_free_rx_buf_dma(p_hxge_t hxgep, p_hxge_dma_common_t dmap,
   1850     uint32_t num_chunks)
   1851 {
   1852 	int i;
   1853 
   1854 	HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
   1855 	    "==> hxge_free_rx_buf_dma: # of chunks %d", num_chunks));
   1856 
   1857 	for (i = 0; i < num_chunks; i++) {
   1858 		HXGE_DEBUG_MSG((hxgep, MEM2_CTL,
   1859 		    "==> hxge_free_rx_buf_dma: chunk %d dmap 0x%llx", i, dmap));
   1860 		hxge_dma_mem_free(dmap++);
   1861 	}
   1862 
   1863 	HXGE_DEBUG_MSG((hxgep, MEM2_CTL, "<== hxge_free_rx_buf_dma"));
   1864 }
   1865 
   1866 /*ARGSUSED*/
   1867 static hxge_status_t
   1868 hxge_alloc_rx_cntl_dma(p_hxge_t hxgep, uint16_t dma_channel,
   1869     p_hxge_dma_common_t *dmap, struct ddi_dma_attr *attr, size_t size)
   1870 {
   1871 	p_hxge_dma_common_t	rx_dmap;
   1872 	hxge_status_t		status = HXGE_OK;
   1873 
   1874 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_alloc_rx_cntl_dma"));
   1875 
   1876 	rx_dmap = (p_hxge_dma_common_t)
   1877 	    KMEM_ZALLOC(sizeof (hxge_dma_common_t), KM_SLEEP);
   1878 
   1879 	rx_dmap->contig_alloc_type = B_FALSE;
   1880 
   1881 	status = hxge_dma_mem_alloc(hxgep, hxge_force_dma,
   1882 	    attr, size, &hxge_dev_desc_dma_acc_attr,
   1883 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT, rx_dmap);
   1884 	if (status != HXGE_OK) {
   1885 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   1886 		    " hxge_alloc_rx_cntl_dma: Alloc Failed: "
   1887 		    " for size: %d", size));
   1888 		goto hxge_alloc_rx_cntl_dma_fail1;
   1889 	}
   1890 
   1891 	*dmap = rx_dmap;
   1892 
   1893 	goto hxge_alloc_rx_cntl_dma_exit;
   1894 
   1895 hxge_alloc_rx_cntl_dma_fail1:
   1896 	KMEM_FREE(rx_dmap, sizeof (hxge_dma_common_t));
   1897 
   1898 hxge_alloc_rx_cntl_dma_exit:
   1899 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   1900 	    "<== hxge_alloc_rx_cntl_dma status 0x%08x", status));
   1901 
   1902 	return (status);
   1903 }
   1904 
   1905 /*ARGSUSED*/
   1906 static void
   1907 hxge_free_rx_cntl_dma(p_hxge_t hxgep, p_hxge_dma_common_t dmap)
   1908 {
   1909 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_free_rx_cntl_dma"));
   1910 
   1911 	hxge_dma_mem_free(dmap);
   1912 
   1913 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "<== hxge_free_rx_cntl_dma"));
   1914 }
   1915 
   1916 static hxge_status_t
   1917 hxge_alloc_tx_mem_pool(p_hxge_t hxgep)
   1918 {
   1919 	hxge_status_t		status = HXGE_OK;
   1920 	int			i, j;
   1921 	uint32_t		ndmas, st_tdc;
   1922 	p_hxge_dma_pt_cfg_t	p_all_cfgp;
   1923 	p_hxge_hw_pt_cfg_t	p_cfgp;
   1924 	p_hxge_dma_pool_t	dma_poolp;
   1925 	p_hxge_dma_common_t	*dma_buf_p;
   1926 	p_hxge_dma_pool_t	dma_cntl_poolp;
   1927 	p_hxge_dma_common_t	*dma_cntl_p;
   1928 	size_t			tx_buf_alloc_size;
   1929 	size_t			tx_cntl_alloc_size;
   1930 	uint32_t		*num_chunks;	/* per dma */
   1931 
   1932 	HXGE_DEBUG_MSG((hxgep, MEM_CTL, "==> hxge_alloc_tx_mem_pool"));
   1933 
   1934 	p_all_cfgp = (p_hxge_dma_pt_cfg_t)&hxgep->pt_config;
   1935 	p_cfgp = (p_hxge_hw_pt_cfg_t)&p_all_cfgp->hw_config;
   1936 	st_tdc = p_cfgp->start_tdc;
   1937 	ndmas = p_cfgp->max_tdcs;
   1938 
   1939 	HXGE_DEBUG_MSG((hxgep, MEM_CTL, "==> hxge_alloc_tx_mem_pool: "
   1940 	    "p_cfgp 0x%016llx start_tdc %d ndmas %d hxgep->max_tdcs %d",
   1941 	    p_cfgp, p_cfgp->start_tdc, p_cfgp->max_tdcs, hxgep->max_tdcs));
   1942 	/*
   1943 	 * Allocate memory for each transmit DMA channel.
   1944 	 */
   1945 	dma_poolp = (p_hxge_dma_pool_t)KMEM_ZALLOC(sizeof (hxge_dma_pool_t),
   1946 	    KM_SLEEP);
   1947 	dma_buf_p = (p_hxge_dma_common_t *)KMEM_ZALLOC(
   1948 	    sizeof (p_hxge_dma_common_t) * ndmas, KM_SLEEP);
   1949 
   1950 	dma_cntl_poolp = (p_hxge_dma_pool_t)
   1951 	    KMEM_ZALLOC(sizeof (hxge_dma_pool_t), KM_SLEEP);
   1952 	dma_cntl_p = (p_hxge_dma_common_t *)KMEM_ZALLOC(
   1953 	    sizeof (p_hxge_dma_common_t) * ndmas, KM_SLEEP);
   1954 
   1955 	hxgep->hxge_port_tx_ring_size = hxge_tx_ring_size;
   1956 
   1957 	/*
   1958 	 * Assume that each DMA channel will be configured with default
   1959 	 * transmit bufer size for copying transmit data. (For packet payload
   1960 	 * over this limit, packets will not be copied.)
   1961 	 */
   1962 	tx_buf_alloc_size = (hxge_bcopy_thresh * hxge_tx_ring_size);
   1963 
   1964 	/*
   1965 	 * Addresses of transmit descriptor ring and the mailbox must be all
   1966 	 * cache-aligned (64 bytes).
   1967 	 */
   1968 	tx_cntl_alloc_size = hxge_tx_ring_size;
   1969 	tx_cntl_alloc_size *= (sizeof (tx_desc_t));
   1970 	tx_cntl_alloc_size += sizeof (txdma_mailbox_t);
   1971 
   1972 	num_chunks = (uint32_t *)KMEM_ZALLOC(sizeof (uint32_t) * ndmas,
   1973 	    KM_SLEEP);
   1974 
   1975 	/*
   1976 	 * Allocate memory for transmit buffers and descriptor rings. Replace
   1977 	 * allocation functions with interface functions provided by the
   1978 	 * partition manager when it is available.
   1979 	 *
   1980 	 * Allocate memory for the transmit buffer pool.
   1981 	 */
   1982 	for (i = 0; i < ndmas; i++) {
   1983 		num_chunks[i] = 0;
   1984 		status = hxge_alloc_tx_buf_dma(hxgep, st_tdc, &dma_buf_p[i],
   1985 		    tx_buf_alloc_size, hxge_bcopy_thresh, &num_chunks[i]);
   1986 		if (status != HXGE_OK) {
   1987 			break;
   1988 		}
   1989 		st_tdc++;
   1990 	}
   1991 
   1992 	if (i < ndmas) {
   1993 		goto hxge_alloc_tx_mem_pool_fail1;
   1994 	}
   1995 
   1996 	st_tdc = p_cfgp->start_tdc;
   1997 
   1998 	/*
   1999 	 * Allocate memory for descriptor rings and mailbox.
   2000 	 */
   2001 	for (j = 0; j < ndmas; j++) {
   2002 		status = hxge_alloc_tx_cntl_dma(hxgep, st_tdc, &dma_cntl_p[j],
   2003 		    tx_cntl_alloc_size);
   2004 		if (status != HXGE_OK) {
   2005 			break;
   2006 		}
   2007 		st_tdc++;
   2008 	}
   2009 
   2010 	if (j < ndmas) {
   2011 		goto hxge_alloc_tx_mem_pool_fail2;
   2012 	}
   2013 
   2014 	dma_poolp->ndmas = ndmas;
   2015 	dma_poolp->num_chunks = num_chunks;
   2016 	dma_poolp->buf_allocated = B_TRUE;
   2017 	dma_poolp->dma_buf_pool_p = dma_buf_p;
   2018 	hxgep->tx_buf_pool_p = dma_poolp;
   2019 
   2020 	dma_cntl_poolp->ndmas = ndmas;
   2021 	dma_cntl_poolp->buf_allocated = B_TRUE;
   2022 	dma_cntl_poolp->dma_buf_pool_p = dma_cntl_p;
   2023 	hxgep->tx_cntl_pool_p = dma_cntl_poolp;
   2024 
   2025 	HXGE_DEBUG_MSG((hxgep, MEM_CTL,
   2026 	    "==> hxge_alloc_tx_mem_pool: start_tdc %d "
   2027 	    "ndmas %d poolp->ndmas %d", st_tdc, ndmas, dma_poolp->ndmas));
   2028 
   2029 	goto hxge_alloc_tx_mem_pool_exit;
   2030 
   2031 hxge_alloc_tx_mem_pool_fail2:
   2032 	/* Free control buffers */
   2033 	j--;
   2034 	for (; j >= 0; j--) {
   2035 		hxge_free_tx_cntl_dma(hxgep,
   2036 		    (p_hxge_dma_common_t)dma_cntl_p[j]);
   2037 	}
   2038 
   2039 hxge_alloc_tx_mem_pool_fail1:
   2040 	/* Free data buffers */
   2041 	i--;
   2042 	for (; i >= 0; i--) {
   2043 		hxge_free_tx_buf_dma(hxgep, (p_hxge_dma_common_t)dma_buf_p[i],
   2044 		    num_chunks[i]);
   2045 	}
   2046 
   2047 	KMEM_FREE(dma_poolp, sizeof (hxge_dma_pool_t));
   2048 	KMEM_FREE(dma_buf_p, ndmas * sizeof (p_hxge_dma_common_t));
   2049 	KMEM_FREE(dma_cntl_poolp, sizeof (hxge_dma_pool_t));
   2050 	KMEM_FREE(dma_cntl_p, ndmas * sizeof (p_hxge_dma_common_t));
   2051 	KMEM_FREE(num_chunks, sizeof (uint32_t) * ndmas);
   2052 
   2053 hxge_alloc_tx_mem_pool_exit:
   2054 	HXGE_DEBUG_MSG((hxgep, MEM_CTL,
   2055 	    "<== hxge_alloc_tx_mem_pool:status 0x%08x", status));
   2056 
   2057 	return (status);
   2058 }
   2059 
   2060 static hxge_status_t
   2061 hxge_alloc_tx_buf_dma(p_hxge_t hxgep, uint16_t dma_channel,
   2062     p_hxge_dma_common_t *dmap, size_t alloc_size,
   2063     size_t block_size, uint32_t *num_chunks)
   2064 {
   2065 	p_hxge_dma_common_t	tx_dmap;
   2066 	hxge_status_t		status = HXGE_OK;
   2067 	size_t			total_alloc_size;
   2068 	size_t			allocated = 0;
   2069 	int			i, size_index, array_size;
   2070 
   2071 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_alloc_tx_buf_dma"));
   2072 
   2073 	tx_dmap = (p_hxge_dma_common_t)
   2074 	    KMEM_ZALLOC(sizeof (hxge_dma_common_t) * HXGE_DMA_BLOCK, KM_SLEEP);
   2075 
   2076 	total_alloc_size = alloc_size;
   2077 	i = 0;
   2078 	size_index = 0;
   2079 	array_size = sizeof (alloc_sizes) / sizeof (size_t);
   2080 	while ((size_index < array_size) &&
   2081 	    (alloc_sizes[size_index] < alloc_size))
   2082 		size_index++;
   2083 	if (size_index >= array_size) {
   2084 		size_index = array_size - 1;
   2085 	}
   2086 
   2087 	while ((allocated < total_alloc_size) &&
   2088 	    (size_index >= 0) && (i < HXGE_DMA_BLOCK)) {
   2089 		tx_dmap[i].dma_chunk_index = i;
   2090 		tx_dmap[i].block_size = block_size;
   2091 		tx_dmap[i].alength = alloc_sizes[size_index];
   2092 		tx_dmap[i].orig_alength = tx_dmap[i].alength;
   2093 		tx_dmap[i].nblocks = alloc_sizes[size_index] / block_size;
   2094 		tx_dmap[i].dma_channel = dma_channel;
   2095 		tx_dmap[i].contig_alloc_type = B_FALSE;
   2096 
   2097 		status = hxge_dma_mem_alloc(hxgep, hxge_force_dma,
   2098 		    &hxge_tx_dma_attr, tx_dmap[i].alength,
   2099 		    &hxge_dev_buf_dma_acc_attr,
   2100 		    DDI_DMA_WRITE | DDI_DMA_STREAMING,
   2101 		    (p_hxge_dma_common_t)(&tx_dmap[i]));
   2102 		if (status != HXGE_OK) {
   2103 			HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   2104 			    " hxge_alloc_tx_buf_dma: Alloc Failed: "
   2105 			    " for size: %d", alloc_sizes[size_index]));
   2106 			size_index--;
   2107 		} else {
   2108 			i++;
   2109 			allocated += alloc_sizes[size_index];
   2110 		}
   2111 	}
   2112 
   2113 	if (allocated < total_alloc_size) {
   2114 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   2115 		    " hxge_alloc_tx_buf_dma: failed due to"
   2116 		    " allocated(%d) < required(%d)",
   2117 		    allocated, total_alloc_size));
   2118 		goto hxge_alloc_tx_mem_fail1;
   2119 	}
   2120 
   2121 	*num_chunks = i;
   2122 	*dmap = tx_dmap;
   2123 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   2124 	    "==> hxge_alloc_tx_buf_dma dmap 0x%016llx num chunks %d",
   2125 	    *dmap, i));
   2126 	goto hxge_alloc_tx_mem_exit;
   2127 
   2128 hxge_alloc_tx_mem_fail1:
   2129 	KMEM_FREE(tx_dmap, sizeof (hxge_dma_common_t) * HXGE_DMA_BLOCK);
   2130 
   2131 hxge_alloc_tx_mem_exit:
   2132 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   2133 	    "<== hxge_alloc_tx_buf_dma status 0x%08x", status));
   2134 
   2135 	return (status);
   2136 }
   2137 
   2138 /*ARGSUSED*/
   2139 static void
   2140 hxge_free_tx_buf_dma(p_hxge_t hxgep, p_hxge_dma_common_t dmap,
   2141     uint32_t num_chunks)
   2142 {
   2143 	int i;
   2144 
   2145 	HXGE_DEBUG_MSG((hxgep, MEM_CTL, "==> hxge_free_tx_buf_dma"));
   2146 
   2147 	for (i = 0; i < num_chunks; i++) {
   2148 		hxge_dma_mem_free(dmap++);
   2149 	}
   2150 
   2151 	HXGE_DEBUG_MSG((hxgep, MEM_CTL, "<== hxge_free_tx_buf_dma"));
   2152 }
   2153 
   2154 /*ARGSUSED*/
   2155 static hxge_status_t
   2156 hxge_alloc_tx_cntl_dma(p_hxge_t hxgep, uint16_t dma_channel,
   2157     p_hxge_dma_common_t *dmap, size_t size)
   2158 {
   2159 	p_hxge_dma_common_t	tx_dmap;
   2160 	hxge_status_t		status = HXGE_OK;
   2161 
   2162 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_alloc_tx_cntl_dma"));
   2163 
   2164 	tx_dmap = (p_hxge_dma_common_t)KMEM_ZALLOC(sizeof (hxge_dma_common_t),
   2165 	    KM_SLEEP);
   2166 
   2167 	tx_dmap->contig_alloc_type = B_FALSE;
   2168 
   2169 	status = hxge_dma_mem_alloc(hxgep, hxge_force_dma,
   2170 	    &hxge_tx_desc_dma_attr, size, &hxge_dev_desc_dma_acc_attr,
   2171 	    DDI_DMA_RDWR | DDI_DMA_CONSISTENT, tx_dmap);
   2172 	if (status != HXGE_OK) {
   2173 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   2174 		    " hxge_alloc_tx_cntl_dma: Alloc Failed: "
   2175 		    " for size: %d", size));
   2176 		goto hxge_alloc_tx_cntl_dma_fail1;
   2177 	}
   2178 
   2179 	*dmap = tx_dmap;
   2180 
   2181 	goto hxge_alloc_tx_cntl_dma_exit;
   2182 
   2183 hxge_alloc_tx_cntl_dma_fail1:
   2184 	KMEM_FREE(tx_dmap, sizeof (hxge_dma_common_t));
   2185 
   2186 hxge_alloc_tx_cntl_dma_exit:
   2187 	HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   2188 	    "<== hxge_alloc_tx_cntl_dma status 0x%08x", status));
   2189 
   2190 	return (status);
   2191 }
   2192 
   2193 /*ARGSUSED*/
   2194 static void
   2195 hxge_free_tx_cntl_dma(p_hxge_t hxgep, p_hxge_dma_common_t dmap)
   2196 {
   2197 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "==> hxge_free_tx_cntl_dma"));
   2198 
   2199 	hxge_dma_mem_free(dmap);
   2200 
   2201 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "<== hxge_free_tx_cntl_dma"));
   2202 }
   2203 
   2204 static void
   2205 hxge_free_tx_mem_pool(p_hxge_t hxgep)
   2206 {
   2207 	uint32_t		i, ndmas;
   2208 	p_hxge_dma_pool_t	dma_poolp;
   2209 	p_hxge_dma_common_t	*dma_buf_p;
   2210 	p_hxge_dma_pool_t	dma_cntl_poolp;
   2211 	p_hxge_dma_common_t	*dma_cntl_p;
   2212 	uint32_t		*num_chunks;
   2213 
   2214 	HXGE_DEBUG_MSG((hxgep, MEM3_CTL, "==> hxge_free_tx_mem_pool"));
   2215 
   2216 	dma_poolp = hxgep->tx_buf_pool_p;
   2217 	if (dma_poolp == NULL || (!dma_poolp->buf_allocated)) {
   2218 		HXGE_DEBUG_MSG((hxgep, MEM3_CTL,
   2219 		    "<== hxge_free_tx_mem_pool "
   2220 		    "(null rx buf pool or buf not allocated"));
   2221 		return;
   2222 	}
   2223 
   2224 	dma_cntl_poolp = hxgep->tx_cntl_pool_p;
   2225 	if (dma_cntl_poolp == NULL || (!dma_cntl_poolp->buf_allocated)) {
   2226 		HXGE_DEBUG_MSG((hxgep, MEM3_CTL,
   2227 		    "<== hxge_free_tx_mem_pool "
   2228 		    "(null tx cntl buf pool or cntl buf not allocated"));
   2229 		return;
   2230 	}
   2231 
   2232 	dma_buf_p = dma_poolp->dma_buf_pool_p;
   2233 	num_chunks = dma_poolp->num_chunks;
   2234 
   2235 	dma_cntl_p = dma_cntl_poolp->dma_buf_pool_p;
   2236 	ndmas = dma_cntl_poolp->ndmas;
   2237 
   2238 	for (i = 0; i < ndmas; i++) {
   2239 		hxge_free_tx_buf_dma(hxgep, dma_buf_p[i], num_chunks[i]);
   2240 	}
   2241 
   2242 	for (i = 0; i < ndmas; i++) {
   2243 		hxge_free_tx_cntl_dma(hxgep, dma_cntl_p[i]);
   2244 	}
   2245 
   2246 	for (i = 0; i < ndmas; i++) {
   2247 		KMEM_FREE(dma_buf_p[i],
   2248 		    sizeof (hxge_dma_common_t) * HXGE_DMA_BLOCK);
   2249 		KMEM_FREE(dma_cntl_p[i], sizeof (hxge_dma_common_t));
   2250 	}
   2251 
   2252 	KMEM_FREE(num_chunks, sizeof (uint32_t) * ndmas);
   2253 	KMEM_FREE(dma_cntl_p, ndmas * sizeof (p_hxge_dma_common_t));
   2254 	KMEM_FREE(dma_cntl_poolp, sizeof (hxge_dma_pool_t));
   2255 	KMEM_FREE(dma_buf_p, ndmas * sizeof (p_hxge_dma_common_t));
   2256 	KMEM_FREE(dma_poolp, sizeof (hxge_dma_pool_t));
   2257 
   2258 	hxgep->tx_buf_pool_p = NULL;
   2259 	hxgep->tx_cntl_pool_p = NULL;
   2260 
   2261 	HXGE_DEBUG_MSG((hxgep, MEM3_CTL, "<== hxge_free_tx_mem_pool"));
   2262 }
   2263 
   2264 /*ARGSUSED*/
   2265 static hxge_status_t
   2266 hxge_dma_mem_alloc(p_hxge_t hxgep, dma_method_t method,
   2267     struct ddi_dma_attr *dma_attrp,
   2268     size_t length, ddi_device_acc_attr_t *acc_attr_p, uint_t xfer_flags,
   2269     p_hxge_dma_common_t dma_p)
   2270 {
   2271 	caddr_t		kaddrp;
   2272 	int		ddi_status = DDI_SUCCESS;
   2273 
   2274 	dma_p->dma_handle = NULL;
   2275 	dma_p->acc_handle = NULL;
   2276 	dma_p->kaddrp = NULL;
   2277 
   2278 	ddi_status = ddi_dma_alloc_handle(hxgep->dip, dma_attrp,
   2279 	    DDI_DMA_DONTWAIT, NULL, &dma_p->dma_handle);
   2280 	if (ddi_status != DDI_SUCCESS) {
   2281 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   2282 		    "hxge_dma_mem_alloc:ddi_dma_alloc_handle failed."));
   2283 		return (HXGE_ERROR | HXGE_DDI_FAILED);
   2284 	}
   2285 
   2286 	ddi_status = ddi_dma_mem_alloc(dma_p->dma_handle, length, acc_attr_p,
   2287 	    xfer_flags, DDI_DMA_DONTWAIT, 0, &kaddrp, &dma_p->alength,
   2288 	    &dma_p->acc_handle);
   2289 	if (ddi_status != DDI_SUCCESS) {
   2290 		/* The caller will decide whether it is fatal */
   2291 		HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   2292 		    "hxge_dma_mem_alloc:ddi_dma_mem_alloc failed"));
   2293 		ddi_dma_free_handle(&dma_p->dma_handle);
   2294 		dma_p->dma_handle = NULL;
   2295 		return (HXGE_ERROR | HXGE_DDI_FAILED);
   2296 	}
   2297 
   2298 	if (dma_p->alength < length) {
   2299 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   2300 		    "hxge_dma_mem_alloc:ddi_dma_mem_alloc < length."));
   2301 		ddi_dma_mem_free(&dma_p->acc_handle);
   2302 		ddi_dma_free_handle(&dma_p->dma_handle);
   2303 		dma_p->acc_handle = NULL;
   2304 		dma_p->dma_handle = NULL;
   2305 		return (HXGE_ERROR);
   2306 	}
   2307 
   2308 	ddi_status = ddi_dma_addr_bind_handle(dma_p->dma_handle, NULL,
   2309 	    kaddrp, dma_p->alength, xfer_flags, DDI_DMA_DONTWAIT, 0,
   2310 	    &dma_p->dma_cookie, &dma_p->ncookies);
   2311 	if (ddi_status != DDI_DMA_MAPPED) {
   2312 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   2313 		    "hxge_dma_mem_alloc:di_dma_addr_bind failed "
   2314 		    "(staus 0x%x ncookies %d.)", ddi_status, dma_p->ncookies));
   2315 		if (dma_p->acc_handle) {
   2316 			ddi_dma_mem_free(&dma_p->acc_handle);
   2317 			dma_p->acc_handle = NULL;
   2318 		}
   2319 		ddi_dma_free_handle(&dma_p->dma_handle);
   2320 		dma_p->dma_handle = NULL;
   2321 		return (HXGE_ERROR | HXGE_DDI_FAILED);
   2322 	}
   2323 
   2324 	if (dma_p->ncookies != 1) {
   2325 		HXGE_DEBUG_MSG((hxgep, DMA_CTL,
   2326 		    "hxge_dma_mem_alloc:ddi_dma_addr_bind > 1 cookie"
   2327 		    "(staus 0x%x ncookies %d.)", ddi_status, dma_p->ncookies));
   2328 		if (dma_p->acc_handle) {
   2329 			ddi_dma_mem_free(&dma_p->acc_handle);
   2330 			dma_p->acc_handle = NULL;
   2331 		}
   2332 		(void) ddi_dma_unbind_handle(dma_p->dma_handle);
   2333 		ddi_dma_free_handle(&dma_p->dma_handle);
   2334 		dma_p->dma_handle = NULL;
   2335 		return (HXGE_ERROR);
   2336 	}
   2337 
   2338 	dma_p->kaddrp = kaddrp;
   2339 #if defined(__i386)
   2340 	dma_p->ioaddr_pp =
   2341 	    (unsigned char *)(uint32_t)dma_p->dma_cookie.dmac_laddress;
   2342 #else
   2343 	dma_p->ioaddr_pp = (unsigned char *) dma_p->dma_cookie.dmac_laddress;
   2344 #endif
   2345 
   2346 	HPI_DMA_ACC_HANDLE_SET(dma_p, dma_p->acc_handle);
   2347 
   2348 	HXGE_DEBUG_MSG((hxgep, DMA_CTL, "<== hxge_dma_mem_alloc: "
   2349 	    "dma buffer allocated: dma_p $%p "
   2350 	    "return dmac_ladress from cookie $%p dmac_size %d "
   2351 	    "dma_p->ioaddr_p $%p "
   2352 	    "dma_p->orig_ioaddr_p $%p "
   2353 	    "orig_vatopa $%p "
   2354 	    "alength %d (0x%x) "
   2355 	    "kaddrp $%p "
   2356 	    "length %d (0x%x)",
   2357 	    dma_p,
   2358 	    dma_p->dma_cookie.dmac_laddress,
   2359 	    dma_p->dma_cookie.dmac_size,
   2360 	    dma_p->ioaddr_pp,
   2361 	    dma_p->orig_ioaddr_pp,
   2362 	    dma_p->orig_vatopa,
   2363 	    dma_p->alength, dma_p->alength,
   2364 	    kaddrp,
   2365 	    length, length));
   2366 
   2367 	return (HXGE_OK);
   2368 }
   2369 
   2370 static void
   2371 hxge_dma_mem_free(p_hxge_dma_common_t dma_p)
   2372 {
   2373 	if (dma_p == NULL)
   2374 		return;
   2375 
   2376 	if (dma_p->dma_handle != NULL) {
   2377 		if (dma_p->ncookies) {
   2378 			(void) ddi_dma_unbind_handle(dma_p->dma_handle);
   2379 			dma_p->ncookies = 0;
   2380 		}
   2381 		ddi_dma_free_handle(&dma_p->dma_handle);
   2382 		dma_p->dma_handle = NULL;
   2383 	}
   2384 
   2385 	if (dma_p->acc_handle != NULL) {
   2386 		ddi_dma_mem_free(&dma_p->acc_handle);
   2387 		dma_p->acc_handle = NULL;
   2388 		HPI_DMA_ACC_HANDLE_SET(dma_p, NULL);
   2389 	}
   2390 
   2391 	dma_p->kaddrp = NULL;
   2392 	dma_p->alength = NULL;
   2393 }
   2394 
   2395 /*
   2396  *	hxge_m_start() -- start transmitting and receiving.
   2397  *
   2398  *	This function is called by the MAC layer when the first
   2399  *	stream is open to prepare the hardware ready for sending
   2400  *	and transmitting packets.
   2401  */
   2402 static int
   2403 hxge_m_start(void *arg)
   2404 {
   2405 	p_hxge_t hxgep = (p_hxge_t)arg;
   2406 
   2407 	HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "==> hxge_m_start"));
   2408 
   2409 	MUTEX_ENTER(hxgep->genlock);
   2410 
   2411 	if (hxge_init(hxgep) != DDI_SUCCESS) {
   2412 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   2413 		    "<== hxge_m_start: initialization failed"));
   2414 		MUTEX_EXIT(hxgep->genlock);
   2415 		return (EIO);
   2416 	}
   2417 
   2418 	if (hxgep->hxge_mac_state != HXGE_MAC_STARTED) {
   2419 		/*
   2420 		 * Start timer to check the system error and tx hangs
   2421 		 */
   2422 		hxgep->hxge_timerid = hxge_start_timer(hxgep,
   2423 		    hxge_check_hw_state, HXGE_CHECK_TIMER);
   2424 
   2425 		hxgep->hxge_mac_state = HXGE_MAC_STARTED;
   2426 
   2427 		hxgep->timeout.link_status = 0;
   2428 		hxgep->timeout.report_link_status = B_TRUE;
   2429 		hxgep->timeout.ticks = drv_usectohz(2 * 1000000);
   2430 
   2431 		/* Start the link status timer to check the link status */
   2432 		MUTEX_ENTER(&hxgep->timeout.lock);
   2433 		hxgep->timeout.id = timeout(hxge_link_poll, (void *)hxgep,
   2434 		    hxgep->timeout.ticks);
   2435 		MUTEX_EXIT(&hxgep->timeout.lock);
   2436 	}
   2437 
   2438 	MUTEX_EXIT(hxgep->genlock);
   2439 
   2440 	HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "<== hxge_m_start"));
   2441 
   2442 	return (0);
   2443 }
   2444 
   2445 /*
   2446  * hxge_m_stop(): stop transmitting and receiving.
   2447  */
   2448 static void
   2449 hxge_m_stop(void *arg)
   2450 {
   2451 	p_hxge_t hxgep = (p_hxge_t)arg;
   2452 
   2453 	HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "==> hxge_m_stop"));
   2454 
   2455 	if (hxgep->hxge_timerid) {
   2456 		hxge_stop_timer(hxgep, hxgep->hxge_timerid);
   2457 		hxgep->hxge_timerid = 0;
   2458 	}
   2459 
   2460 	/* Stop the link status timer before unregistering */
   2461 	MUTEX_ENTER(&hxgep->timeout.lock);
   2462 	if (hxgep->timeout.id) {
   2463 		(void) untimeout(hxgep->timeout.id);
   2464 		hxgep->timeout.id = 0;
   2465 	}
   2466 	hxge_link_update(hxgep, LINK_STATE_DOWN);
   2467 	MUTEX_EXIT(&hxgep->timeout.lock);
   2468 
   2469 	MUTEX_ENTER(hxgep->genlock);
   2470 
   2471 	hxge_uninit(hxgep);
   2472 
   2473 	hxgep->hxge_mac_state = HXGE_MAC_STOPPED;
   2474 
   2475 	MUTEX_EXIT(hxgep->genlock);
   2476 
   2477 	HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "<== hxge_m_stop"));
   2478 }
   2479 
   2480 static int
   2481 hxge_m_multicst(void *arg, boolean_t add, const uint8_t *mca)
   2482 {
   2483 	p_hxge_t		hxgep = (p_hxge_t)arg;
   2484 	struct ether_addr	addrp;
   2485 
   2486 	HXGE_DEBUG_MSG((hxgep, MAC_CTL, "==> hxge_m_multicst: add %d", add));
   2487 
   2488 	bcopy(mca, (uint8_t *)&addrp, ETHERADDRL);
   2489 
   2490 	if (add) {
   2491 		if (hxge_add_mcast_addr(hxgep, &addrp)) {
   2492 			HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   2493 			    "<== hxge_m_multicst: add multicast failed"));
   2494 			return (EINVAL);
   2495 		}
   2496 	} else {
   2497 		if (hxge_del_mcast_addr(hxgep, &addrp)) {
   2498 			HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   2499 			    "<== hxge_m_multicst: del multicast failed"));
   2500 			return (EINVAL);
   2501 		}
   2502 	}
   2503 
   2504 	HXGE_DEBUG_MSG((hxgep, MAC_CTL, "<== hxge_m_multicst"));
   2505 
   2506 	return (0);
   2507 }
   2508 
   2509 static int
   2510 hxge_m_promisc(void *arg, boolean_t on)
   2511 {
   2512 	p_hxge_t hxgep = (p_hxge_t)arg;
   2513 
   2514 	HXGE_DEBUG_MSG((hxgep, MAC_CTL, "==> hxge_m_promisc: on %d", on));
   2515 
   2516 	if (hxge_set_promisc(hxgep, on)) {
   2517 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   2518 		    "<== hxge_m_promisc: set promisc failed"));
   2519 		return (EINVAL);
   2520 	}
   2521 
   2522 	HXGE_DEBUG_MSG((hxgep, MAC_CTL, "<== hxge_m_promisc: on %d", on));
   2523 
   2524 	return (0);
   2525 }
   2526 
   2527 static void
   2528 hxge_m_ioctl(void *arg, queue_t *wq, mblk_t *mp)
   2529 {
   2530 	p_hxge_t	hxgep = (p_hxge_t)arg;
   2531 	struct iocblk	*iocp = (struct iocblk *)mp->b_rptr;
   2532 	boolean_t	need_privilege;
   2533 	int		err;
   2534 	int		cmd;
   2535 
   2536 	HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "==> hxge_m_ioctl"));
   2537 
   2538 	iocp = (struct iocblk *)mp->b_rptr;
   2539 	iocp->ioc_error = 0;
   2540 	need_privilege = B_TRUE;
   2541 	cmd = iocp->ioc_cmd;
   2542 
   2543 	HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "==> hxge_m_ioctl: cmd 0x%08x", cmd));
   2544 	switch (cmd) {
   2545 	default:
   2546 		miocnak(wq, mp, 0, EINVAL);
   2547 		HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "<== hxge_m_ioctl: invalid"));
   2548 		return;
   2549 
   2550 	case LB_GET_INFO_SIZE:
   2551 	case LB_GET_INFO:
   2552 	case LB_GET_MODE:
   2553 		need_privilege = B_FALSE;
   2554 		break;
   2555 
   2556 	case LB_SET_MODE:
   2557 		break;
   2558 
   2559 	case ND_GET:
   2560 		need_privilege = B_FALSE;
   2561 		break;
   2562 	case ND_SET:
   2563 		break;
   2564 
   2565 	case HXGE_GET_TX_RING_SZ:
   2566 	case HXGE_GET_TX_DESC:
   2567 	case HXGE_TX_SIDE_RESET:
   2568 	case HXGE_RX_SIDE_RESET:
   2569 	case HXGE_GLOBAL_RESET:
   2570 	case HXGE_RESET_MAC:
   2571 	case HXGE_PUT_TCAM:
   2572 	case HXGE_GET_TCAM:
   2573 	case HXGE_RTRACE:
   2574 
   2575 		need_privilege = B_FALSE;
   2576 		break;
   2577 	}
   2578 
   2579 	if (need_privilege) {
   2580 		err = secpolicy_net_config(iocp->ioc_cr, B_FALSE);
   2581 		if (err != 0) {
   2582 			miocnak(wq, mp, 0, err);
   2583 			HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   2584 			    "<== hxge_m_ioctl: no priv"));
   2585 			return;
   2586 		}
   2587 	}
   2588 
   2589 	switch (cmd) {
   2590 	case ND_GET:
   2591 		HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "ND_GET command"));
   2592 	case ND_SET:
   2593 		HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "ND_SET command"));
   2594 		hxge_param_ioctl(hxgep, wq, mp, iocp);
   2595 		break;
   2596 
   2597 	case LB_GET_MODE:
   2598 	case LB_SET_MODE:
   2599 	case LB_GET_INFO_SIZE:
   2600 	case LB_GET_INFO:
   2601 		hxge_loopback_ioctl(hxgep, wq, mp, iocp);
   2602 		break;
   2603 
   2604 	case HXGE_PUT_TCAM:
   2605 	case HXGE_GET_TCAM:
   2606 	case HXGE_GET_TX_RING_SZ:
   2607 	case HXGE_GET_TX_DESC:
   2608 	case HXGE_TX_SIDE_RESET:
   2609 	case HXGE_RX_SIDE_RESET:
   2610 	case HXGE_GLOBAL_RESET:
   2611 	case HXGE_RESET_MAC:
   2612 		HXGE_DEBUG_MSG((hxgep, NEMO_CTL,
   2613 		    "==> hxge_m_ioctl: cmd 0x%x", cmd));
   2614 		hxge_hw_ioctl(hxgep, wq, mp, iocp);
   2615 		break;
   2616 	}
   2617 
   2618 	HXGE_DEBUG_MSG((hxgep, NEMO_CTL, "<== hxge_m_ioctl"));
   2619 }
   2620 
   2621 /*ARGSUSED*/
   2622 static int
   2623 hxge_tx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
   2624 {
   2625 	p_hxge_ring_handle_t	rhp = (p_hxge_ring_handle_t)rdriver;
   2626 	p_hxge_t		hxgep;
   2627 	p_tx_ring_t		ring;
   2628 
   2629 	ASSERT(rhp != NULL);
   2630 	ASSERT((rhp->index >= 0) && (rhp->index < HXGE_MAX_TDCS));
   2631 
   2632 	hxgep = rhp->hxgep;
   2633 
   2634 	/*
   2635 	 * Get the ring pointer.
   2636 	 */
   2637 	ring = hxgep->tx_rings->rings[rhp->index];
   2638 
   2639 	/*
   2640 	 * Fill in the handle for the transmit.
   2641 	 */
   2642 	MUTEX_ENTER(&ring->lock);
   2643 	rhp->started = B_TRUE;
   2644 	ring->ring_handle = rhp->ring_handle;
   2645 	MUTEX_EXIT(&ring->lock);
   2646 
   2647 	return (0);
   2648 }
   2649 
   2650 static void
   2651 hxge_tx_ring_stop(mac_ring_driver_t rdriver)
   2652 {
   2653 	p_hxge_ring_handle_t    rhp = (p_hxge_ring_handle_t)rdriver;
   2654 	p_hxge_t		hxgep;
   2655 	p_tx_ring_t		ring;
   2656 
   2657 	ASSERT(rhp != NULL);
   2658 	ASSERT((rhp->index >= 0) && (rhp->index < HXGE_MAX_TDCS));
   2659 
   2660 	hxgep = rhp->hxgep;
   2661 	ring = hxgep->tx_rings->rings[rhp->index];
   2662 
   2663 	MUTEX_ENTER(&ring->lock);
   2664 	ring->ring_handle = (mac_ring_handle_t)NULL;
   2665 	rhp->started = B_FALSE;
   2666 	MUTEX_EXIT(&ring->lock);
   2667 }
   2668 
   2669 static int
   2670 hxge_rx_ring_start(mac_ring_driver_t rdriver, uint64_t mr_gen_num)
   2671 {
   2672 	p_hxge_ring_handle_t	rhp = (p_hxge_ring_handle_t)rdriver;
   2673 	p_hxge_t		hxgep;
   2674 	p_rx_rcr_ring_t		ring;
   2675 	int			i;
   2676 
   2677 	ASSERT(rhp != NULL);
   2678 	ASSERT((rhp->index >= 0) && (rhp->index < HXGE_MAX_TDCS));
   2679 
   2680 	hxgep = rhp->hxgep;
   2681 
   2682 	/*
   2683 	 * Get pointer to ring.
   2684 	 */
   2685 	ring = hxgep->rx_rcr_rings->rcr_rings[rhp->index];
   2686 
   2687 	MUTEX_ENTER(&ring->lock);
   2688 
   2689 	if (rhp->started) {
   2690 		MUTEX_EXIT(&ring->lock);
   2691 		return (0);
   2692 	}
   2693 
   2694 	/*
   2695 	 * Set the ldvp and ldgp pointers to enable/disable
   2696 	 * polling.
   2697 	 */
   2698 	for (i = 0; i < hxgep->ldgvp->maxldvs; i++) {
   2699 		if ((hxgep->ldgvp->ldvp[i].is_rxdma == 1) &&
   2700 		    (hxgep->ldgvp->ldvp[i].channel == rhp->index)) {
   2701 			ring->ldvp = &hxgep->ldgvp->ldvp[i];
   2702 			ring->ldgp = hxgep->ldgvp->ldvp[i].ldgp;
   2703 			break;
   2704 		}
   2705 	}
   2706 
   2707 	rhp->started = B_TRUE;
   2708 	ring->rcr_mac_handle = rhp->ring_handle;
   2709 	ring->rcr_gen_num = mr_gen_num;
   2710 	MUTEX_EXIT(&ring->lock);
   2711 
   2712 	return (0);
   2713 }
   2714 
   2715 static void
   2716 hxge_rx_ring_stop(mac_ring_driver_t rdriver)
   2717 {
   2718 	p_hxge_ring_handle_t	rhp = (p_hxge_ring_handle_t)rdriver;
   2719 	p_hxge_t		hxgep;
   2720 	p_rx_rcr_ring_t		ring;
   2721 
   2722 	ASSERT(rhp != NULL);
   2723 	ASSERT((rhp->index >= 0) && (rhp->index < HXGE_MAX_TDCS));
   2724 
   2725 	hxgep = rhp->hxgep;
   2726 	ring =  hxgep->rx_rcr_rings->rcr_rings[rhp->index];
   2727 
   2728 	MUTEX_ENTER(&ring->lock);
   2729 	rhp->started = B_TRUE;
   2730 	ring->rcr_mac_handle = NULL;
   2731 	ring->ldvp = NULL;
   2732 	ring->ldgp = NULL;
   2733 	MUTEX_EXIT(&ring->lock);
   2734 }
   2735 
   2736 static int
   2737 hxge_rx_group_start(mac_group_driver_t gdriver)
   2738 {
   2739 	hxge_ring_group_t	*group = (hxge_ring_group_t *)gdriver;
   2740 
   2741 	ASSERT(group->hxgep != NULL);
   2742 	ASSERT(group->hxgep->hxge_mac_state == HXGE_MAC_STARTED);
   2743 
   2744 	MUTEX_ENTER(group->hxgep->genlock);
   2745 	group->started = B_TRUE;
   2746 	MUTEX_EXIT(group->hxgep->genlock);
   2747 
   2748 	return (0);
   2749 }
   2750 
   2751 static void
   2752 hxge_rx_group_stop(mac_group_driver_t gdriver)
   2753 {
   2754 	hxge_ring_group_t	*group = (hxge_ring_group_t *)gdriver;
   2755 
   2756 	ASSERT(group->hxgep != NULL);
   2757 	ASSERT(group->hxgep->hxge_mac_state == HXGE_MAC_STARTED);
   2758 	ASSERT(group->started == B_TRUE);
   2759 
   2760 	MUTEX_ENTER(group->hxgep->genlock);
   2761 	group->started = B_FALSE;
   2762 	MUTEX_EXIT(group->hxgep->genlock);
   2763 }
   2764 
   2765 static int
   2766 hxge_mmac_get_slot(p_hxge_t hxgep, int *slot)
   2767 {
   2768 	int	i;
   2769 
   2770 	/*
   2771 	 * Find an open slot.
   2772 	 */
   2773 	for (i = 0; i < hxgep->mmac.total; i++) {
   2774 		if (!hxgep->mmac.addrs[i].set) {
   2775 			*slot = i;
   2776 			return (0);
   2777 		}
   2778 	}
   2779 
   2780 	return (ENXIO);
   2781 }
   2782 
   2783 static int
   2784 hxge_mmac_set_addr(p_hxge_t hxgep, int slot, const uint8_t *addr)
   2785 {
   2786 	struct ether_addr	eaddr;
   2787 	hxge_status_t		status = HXGE_OK;
   2788 
   2789 	bcopy(addr, (uint8_t *)&eaddr, ETHERADDRL);
   2790 
   2791 	/*
   2792 	 * Set new interface local address and re-init device.
   2793 	 * This is destructive to any other streams attached
   2794 	 * to this device.
   2795 	 */
   2796 	RW_ENTER_WRITER(&hxgep->filter_lock);
   2797 	status = hxge_pfc_set_mac_address(hxgep, slot, &eaddr);
   2798 	RW_EXIT(&hxgep->filter_lock);
   2799 	if (status != HXGE_OK)
   2800 		return (status);
   2801 
   2802 	hxgep->mmac.addrs[slot].set = B_TRUE;
   2803 	bcopy(addr, hxgep->mmac.addrs[slot].addr, ETHERADDRL);
   2804 	hxgep->mmac.available--;
   2805 	if (slot == HXGE_MAC_DEFAULT_ADDR_SLOT)
   2806 		hxgep->mmac.addrs[slot].primary = B_TRUE;
   2807 
   2808 	return (0);
   2809 }
   2810 
   2811 static int
   2812 hxge_mmac_find_addr(p_hxge_t hxgep, const uint8_t *addr, int *slot)
   2813 {
   2814 	int	i, result;
   2815 
   2816 	for (i = 0; i < hxgep->mmac.total; i++) {
   2817 		if (hxgep->mmac.addrs[i].set) {
   2818 			result = memcmp(hxgep->mmac.addrs[i].addr,
   2819 			    addr, ETHERADDRL);
   2820 			if (result == 0) {
   2821 				*slot = i;
   2822 				return (0);
   2823 			}
   2824 		}
   2825 	}
   2826 
   2827 	return (EINVAL);
   2828 }
   2829 
   2830 static int
   2831 hxge_mmac_unset_addr(p_hxge_t hxgep, int slot)
   2832 {
   2833 	hxge_status_t	status;
   2834 	int		i;
   2835 
   2836 	status = hxge_pfc_clear_mac_address(hxgep, slot);
   2837 	if (status != HXGE_OK)
   2838 		return (status);
   2839 
   2840 	for (i = 0; i < ETHERADDRL; i++)
   2841 		hxgep->mmac.addrs[slot].addr[i] = 0;
   2842 
   2843 	hxgep->mmac.addrs[slot].set = B_FALSE;
   2844 	if (slot == HXGE_MAC_DEFAULT_ADDR_SLOT)
   2845 		hxgep->mmac.addrs[slot].primary = B_FALSE;
   2846 	hxgep->mmac.available++;
   2847 
   2848 	return (0);
   2849 }
   2850 
   2851 static int
   2852 hxge_rx_group_add_mac(void *arg, const uint8_t *mac_addr)
   2853 {
   2854 	hxge_ring_group_t	*group = arg;
   2855 	p_hxge_t		hxgep = group->hxgep;
   2856 	int			slot = 0;
   2857 
   2858 	ASSERT(group->type == MAC_RING_TYPE_RX);
   2859 
   2860 	MUTEX_ENTER(hxgep->genlock);
   2861 
   2862 	/*
   2863 	 * Find a slot for the address.
   2864 	 */
   2865 	if (hxge_mmac_get_slot(hxgep, &slot) != 0) {
   2866 		MUTEX_EXIT(hxgep->genlock);
   2867 		return (ENOSPC);
   2868 	}
   2869 
   2870 	/*
   2871 	 * Program the MAC address.
   2872 	 */
   2873 	if (hxge_mmac_set_addr(hxgep, slot, mac_addr) != 0) {
   2874 		MUTEX_EXIT(hxgep->genlock);
   2875 		return (ENOSPC);
   2876 	}
   2877 
   2878 	MUTEX_EXIT(hxgep->genlock);
   2879 	return (0);
   2880 }
   2881 
   2882 static int
   2883 hxge_rx_group_rem_mac(void *arg, const uint8_t *mac_addr)
   2884 {
   2885 	hxge_ring_group_t	*group = arg;
   2886 	p_hxge_t		hxgep = group->hxgep;
   2887 	int			rv, slot;
   2888 
   2889 	ASSERT(group->type == MAC_RING_TYPE_RX);
   2890 
   2891 	MUTEX_ENTER(hxgep->genlock);
   2892 
   2893 	if ((rv = hxge_mmac_find_addr(hxgep, mac_addr, &slot)) != 0) {
   2894 		MUTEX_EXIT(hxgep->genlock);
   2895 		return (rv);
   2896 	}
   2897 
   2898 	if ((rv = hxge_mmac_unset_addr(hxgep, slot)) != 0) {
   2899 		MUTEX_EXIT(hxgep->genlock);
   2900 		return (rv);
   2901 	}
   2902 
   2903 	MUTEX_EXIT(hxgep->genlock);
   2904 	return (0);
   2905 }
   2906 
   2907 static void
   2908 hxge_group_get(void *arg, mac_ring_type_t type, int groupid,
   2909     mac_group_info_t *infop, mac_group_handle_t gh)
   2910 {
   2911 	p_hxge_t		hxgep = arg;
   2912 	hxge_ring_group_t	*group;
   2913 
   2914 	ASSERT(type == MAC_RING_TYPE_RX);
   2915 
   2916 	switch (type) {
   2917 	case MAC_RING_TYPE_RX:
   2918 		group = &hxgep->rx_groups[groupid];
   2919 		group->hxgep = hxgep;
   2920 		group->ghandle = gh;
   2921 		group->index = groupid;
   2922 		group->type = type;
   2923 
   2924 		infop->mgi_driver = (mac_group_driver_t)group;
   2925 		infop->mgi_start = hxge_rx_group_start;
   2926 		infop->mgi_stop = hxge_rx_group_stop;
   2927 		infop->mgi_addmac = hxge_rx_group_add_mac;
   2928 		infop->mgi_remmac = hxge_rx_group_rem_mac;
   2929 		infop->mgi_count = HXGE_MAX_RDCS;
   2930 		break;
   2931 
   2932 	case MAC_RING_TYPE_TX:
   2933 	default:
   2934 		break;
   2935 	}
   2936 }
   2937 
   2938 /*
   2939  * Callback function for the GLDv3 layer to register all rings.
   2940  */
   2941 /*ARGSUSED*/
   2942 static void
   2943 hxge_fill_ring(void *arg, mac_ring_type_t type, const int rg_index,
   2944     const int index, mac_ring_info_t *infop, mac_ring_handle_t rh)
   2945 {
   2946 	p_hxge_t	hxgep = arg;
   2947 
   2948 	switch (type) {
   2949 	case MAC_RING_TYPE_TX: {
   2950 		p_hxge_ring_handle_t	rhp;
   2951 
   2952 		ASSERT((index >= 0) && (index < HXGE_MAX_TDCS));
   2953 		rhp = &hxgep->tx_ring_handles[index];
   2954 		rhp->hxgep = hxgep;
   2955 		rhp->index = index;
   2956 		rhp->ring_handle = rh;
   2957 		infop->mri_driver = (mac_ring_driver_t)rhp;
   2958 		infop->mri_start = hxge_tx_ring_start;
   2959 		infop->mri_stop = hxge_tx_ring_stop;
   2960 		infop->mri_tx = hxge_tx_ring_send;
   2961 		break;
   2962 	}
   2963 	case MAC_RING_TYPE_RX: {
   2964 		p_hxge_ring_handle_t    rhp;
   2965 		mac_intr_t		hxge_mac_intr;
   2966 
   2967 		ASSERT((index >= 0) && (index < HXGE_MAX_RDCS));
   2968 		rhp = &hxgep->rx_ring_handles[index];
   2969 		rhp->hxgep = hxgep;
   2970 		rhp->index = index;
   2971 		rhp->ring_handle = rh;
   2972 
   2973 		/*
   2974 		 * Entrypoint to enable interrupt (disable poll) and
   2975 		 * disable interrupt (enable poll).
   2976 		 */
   2977 		hxge_mac_intr.mi_handle = (mac_intr_handle_t)rhp;
   2978 		hxge_mac_intr.mi_enable =
   2979 		    (mac_intr_enable_t)hxge_disable_poll;
   2980 		hxge_mac_intr.mi_disable =
   2981 		    (mac_intr_disable_t)hxge_enable_poll;
   2982 		infop->mri_driver = (mac_ring_driver_t)rhp;
   2983 		infop->mri_start = hxge_rx_ring_start;
   2984 		infop->mri_stop = hxge_rx_ring_stop;
   2985 		infop->mri_intr = hxge_mac_intr;
   2986 		infop->mri_poll = hxge_rx_poll;
   2987 		break;
   2988 	}
   2989 	default:
   2990 		break;
   2991 	}
   2992 }
   2993 
   2994 /*ARGSUSED*/
   2995 boolean_t
   2996 hxge_m_getcapab(void *arg, mac_capab_t cap, void *cap_data)
   2997 {
   2998 	p_hxge_t	hxgep = arg;
   2999 
   3000 	switch (cap) {
   3001 	case MAC_CAPAB_HCKSUM: {
   3002 		uint32_t	*txflags = cap_data;
   3003 
   3004 		*txflags = HCKSUM_INET_PARTIAL;
   3005 		break;
   3006 	}
   3007 
   3008 	case MAC_CAPAB_RINGS: {
   3009 		mac_capab_rings_t	*cap_rings = cap_data;
   3010 
   3011 		MUTEX_ENTER(hxgep->genlock);
   3012 		if (cap_rings->mr_type == MAC_RING_TYPE_RX) {
   3013 			cap_rings->mr_group_type = MAC_GROUP_TYPE_STATIC;
   3014 			cap_rings->mr_rnum = HXGE_MAX_RDCS;
   3015 			cap_rings->mr_rget = hxge_fill_ring;
   3016 			cap_rings->mr_gnum = HXGE_MAX_RX_GROUPS;
   3017 			cap_rings->mr_gget = hxge_group_get;
   3018 			cap_rings->mr_gaddring = NULL;
   3019 			cap_rings->mr_gremring = NULL;
   3020 		} else {
   3021 			cap_rings->mr_group_type = MAC_GROUP_TYPE_STATIC;
   3022 			cap_rings->mr_rnum = HXGE_MAX_TDCS;
   3023 			cap_rings->mr_rget = hxge_fill_ring;
   3024 			cap_rings->mr_gnum = 0;
   3025 			cap_rings->mr_gget = NULL;
   3026 			cap_rings->mr_gaddring = NULL;
   3027 			cap_rings->mr_gremring = NULL;
   3028 		}
   3029 		MUTEX_EXIT(hxgep->genlock);
   3030 		break;
   3031 	}
   3032 
   3033 	default:
   3034 		return (B_FALSE);
   3035 	}
   3036 	return (B_TRUE);
   3037 }
   3038 
   3039 static boolean_t
   3040 hxge_param_locked(mac_prop_id_t pr_num)
   3041 {
   3042 	/*
   3043 	 * All adv_* parameters are locked (read-only) while
   3044 	 * the device is in any sort of loopback mode ...
   3045 	 */
   3046 	switch (pr_num) {
   3047 		case MAC_PROP_ADV_1000FDX_CAP:
   3048 		case MAC_PROP_EN_1000FDX_CAP:
   3049 		case MAC_PROP_ADV_1000HDX_CAP:
   3050 		case MAC_PROP_EN_1000HDX_CAP:
   3051 		case MAC_PROP_ADV_100FDX_CAP:
   3052 		case MAC_PROP_EN_100FDX_CAP:
   3053 		case MAC_PROP_ADV_100HDX_CAP:
   3054 		case MAC_PROP_EN_100HDX_CAP:
   3055 		case MAC_PROP_ADV_10FDX_CAP:
   3056 		case MAC_PROP_EN_10FDX_CAP:
   3057 		case MAC_PROP_ADV_10HDX_CAP:
   3058 		case MAC_PROP_EN_10HDX_CAP:
   3059 		case MAC_PROP_AUTONEG:
   3060 		case MAC_PROP_FLOWCTRL:
   3061 			return (B_TRUE);
   3062 	}
   3063 	return (B_FALSE);
   3064 }
   3065 
   3066 /*
   3067  * callback functions for set/get of properties
   3068  */
   3069 static int
   3070 hxge_m_setprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
   3071     uint_t pr_valsize, const void *pr_val)
   3072 {
   3073 	hxge_t		*hxgep = barg;
   3074 	p_hxge_stats_t	statsp;
   3075 	int		err = 0;
   3076 	uint32_t	new_mtu, old_framesize, new_framesize;
   3077 
   3078 	HXGE_DEBUG_MSG((hxgep, DLADM_CTL, "==> hxge_m_setprop"));
   3079 
   3080 	statsp = hxgep->statsp;
   3081 	MUTEX_ENTER(hxgep->genlock);
   3082 	if (statsp->port_stats.lb_mode != hxge_lb_normal &&
   3083 	    hxge_param_locked(pr_num)) {
   3084 		/*
   3085 		 * All adv_* parameters are locked (read-only)
   3086 		 * while the device is in any sort of loopback mode.
   3087 		 */
   3088 		HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
   3089 		    "==> hxge_m_setprop: loopback mode: read only"));
   3090 		MUTEX_EXIT(hxgep->genlock);
   3091 		return (EBUSY);
   3092 	}
   3093 
   3094 	switch (pr_num) {
   3095 		/*
   3096 		 * These properties are either not exist or read only
   3097 		 */
   3098 		case MAC_PROP_EN_1000FDX_CAP:
   3099 		case MAC_PROP_EN_100FDX_CAP:
   3100 		case MAC_PROP_EN_10FDX_CAP:
   3101 		case MAC_PROP_EN_1000HDX_CAP:
   3102 		case MAC_PROP_EN_100HDX_CAP:
   3103 		case MAC_PROP_EN_10HDX_CAP:
   3104 		case MAC_PROP_ADV_1000FDX_CAP:
   3105 		case MAC_PROP_ADV_1000HDX_CAP:
   3106 		case MAC_PROP_ADV_100FDX_CAP:
   3107 		case MAC_PROP_ADV_100HDX_CAP:
   3108 		case MAC_PROP_ADV_10FDX_CAP:
   3109 		case MAC_PROP_ADV_10HDX_CAP:
   3110 		case MAC_PROP_STATUS:
   3111 		case MAC_PROP_SPEED:
   3112 		case MAC_PROP_DUPLEX:
   3113 		case MAC_PROP_AUTONEG:
   3114 		/*
   3115 		 * Flow control is handled in the shared domain and
   3116 		 * it is readonly here.
   3117 		 */
   3118 		case MAC_PROP_FLOWCTRL:
   3119 			err = EINVAL;
   3120 			HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
   3121 			    "==> hxge_m_setprop:  read only property %d",
   3122 			    pr_num));
   3123 			break;
   3124 
   3125 		case MAC_PROP_MTU:
   3126 			bcopy(pr_val, &new_mtu, sizeof (new_mtu));
   3127 			HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
   3128 			    "==> hxge_m_setprop: set MTU: %d", new_mtu));
   3129 
   3130 			new_framesize = new_mtu + MTU_TO_FRAME_SIZE;
   3131 			if (new_framesize == hxgep->vmac.maxframesize) {
   3132 				err = 0;
   3133 				break;
   3134 			}
   3135 
   3136 			if (hxgep->hxge_mac_state == HXGE_MAC_STARTED) {
   3137 				err = EBUSY;
   3138 				break;
   3139 			}
   3140 
   3141 			if (new_framesize < MIN_FRAME_SIZE ||
   3142 			    new_framesize > MAX_FRAME_SIZE) {
   3143 				err = EINVAL;
   3144 				break;
   3145 			}
   3146 
   3147 			old_framesize = hxgep->vmac.maxframesize;
   3148 			hxgep->vmac.maxframesize = (uint16_t)new_framesize;
   3149 
   3150 			if (hxge_vmac_set_framesize(hxgep)) {
   3151 				hxgep->vmac.maxframesize =
   3152 				    (uint16_t)old_framesize;
   3153 				err = EINVAL;
   3154 				break;
   3155 			}
   3156 
   3157 			err = mac_maxsdu_update(hxgep->mach, new_mtu);
   3158 			if (err) {
   3159 				hxgep->vmac.maxframesize =
   3160 				    (uint16_t)old_framesize;
   3161 				(void) hxge_vmac_set_framesize(hxgep);
   3162 			}
   3163 
   3164 			HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
   3165 			    "==> hxge_m_setprop: set MTU: %d maxframe %d",
   3166 			    new_mtu, hxgep->vmac.maxframesize));
   3167 			break;
   3168 
   3169 		case MAC_PROP_PRIVATE:
   3170 			HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
   3171 			    "==> hxge_m_setprop: private property"));
   3172 			err = hxge_set_priv_prop(hxgep, pr_name, pr_valsize,
   3173 			    pr_val);
   3174 			break;
   3175 
   3176 		default:
   3177 			err = ENOTSUP;
   3178 			break;
   3179 	}
   3180 
   3181 	MUTEX_EXIT(hxgep->genlock);
   3182 
   3183 	HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
   3184 	    "<== hxge_m_setprop (return %d)", err));
   3185 
   3186 	return (err);
   3187 }
   3188 
   3189 /* ARGSUSED */
   3190 static int
   3191 hxge_get_def_val(hxge_t *hxgep, mac_prop_id_t pr_num, uint_t pr_valsize,
   3192     void *pr_val)
   3193 {
   3194 	int		err = 0;
   3195 	link_flowctrl_t	fl;
   3196 
   3197 	switch (pr_num) {
   3198 	case MAC_PROP_DUPLEX:
   3199 		*(uint8_t *)pr_val = 2;
   3200 		break;
   3201 	case MAC_PROP_AUTONEG:
   3202 		*(uint8_t *)pr_val = 0;
   3203 		break;
   3204 	case MAC_PROP_FLOWCTRL:
   3205 		if (pr_valsize < sizeof (link_flowctrl_t))
   3206 			return (EINVAL);
   3207 		fl = LINK_FLOWCTRL_TX;
   3208 		bcopy(&fl, pr_val, sizeof (fl));
   3209 		break;
   3210 	default:
   3211 		err = ENOTSUP;
   3212 		break;
   3213 	}
   3214 	return (err);
   3215 }
   3216 
   3217 static int
   3218 hxge_m_getprop(void *barg, const char *pr_name, mac_prop_id_t pr_num,
   3219     uint_t pr_flags, uint_t pr_valsize, void *pr_val, uint_t *perm)
   3220 {
   3221 	hxge_t 		*hxgep = barg;
   3222 	p_hxge_stats_t	statsp = hxgep->statsp;
   3223 	int		err = 0;
   3224 	link_flowctrl_t fl;
   3225 	uint64_t	tmp = 0;
   3226 	link_state_t	ls;
   3227 
   3228 	HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
   3229 	    "==> hxge_m_getprop: pr_num %d", pr_num));
   3230 
   3231 	if (pr_valsize == 0)
   3232 		return (EINVAL);
   3233 
   3234 	*perm = MAC_PROP_PERM_RW;
   3235 
   3236 	if ((pr_flags & MAC_PROP_DEFAULT) && (pr_num != MAC_PROP_PRIVATE)) {
   3237 		err = hxge_get_def_val(hxgep, pr_num, pr_valsize, pr_val);
   3238 		return (err);
   3239 	}
   3240 
   3241 	bzero(pr_val, pr_valsize);
   3242 	switch (pr_num) {
   3243 		case MAC_PROP_DUPLEX:
   3244 			*perm = MAC_PROP_PERM_READ;
   3245 			*(uint8_t *)pr_val = statsp->mac_stats.link_duplex;
   3246 			HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
   3247 			    "==> hxge_m_getprop: duplex mode %d",
   3248 			    *(uint8_t *)pr_val));
   3249 			break;
   3250 
   3251 		case MAC_PROP_SPEED:
   3252 			*perm = MAC_PROP_PERM_READ;
   3253 			if (pr_valsize < sizeof (uint64_t))
   3254 				return (EINVAL);
   3255 			tmp = statsp->mac_stats.link_speed * 1000000ull;
   3256 			bcopy(&tmp, pr_val, sizeof (tmp));
   3257 			break;
   3258 
   3259 		case MAC_PROP_STATUS:
   3260 			*perm = MAC_PROP_PERM_READ;
   3261 			if (pr_valsize < sizeof (link_state_t))
   3262 				return (EINVAL);
   3263 			if (!statsp->mac_stats.link_up)
   3264 				ls = LINK_STATE_DOWN;
   3265 			else
   3266 				ls = LINK_STATE_UP;
   3267 			bcopy(&ls, pr_val, sizeof (ls));
   3268 			break;
   3269 
   3270 		case MAC_PROP_FLOWCTRL:
   3271 			/*
   3272 			 * Flow control is supported by the shared domain and
   3273 			 * it is currently transmit only
   3274 			 */
   3275 			*perm = MAC_PROP_PERM_READ;
   3276 			if (pr_valsize < sizeof (link_flowctrl_t))
   3277 				return (EINVAL);
   3278 			fl = LINK_FLOWCTRL_TX;
   3279 			bcopy(&fl, pr_val, sizeof (fl));
   3280 			break;
   3281 		case MAC_PROP_AUTONEG:
   3282 			/* 10G link only and it is not negotiable */
   3283 			*perm = MAC_PROP_PERM_READ;
   3284 			*(uint8_t *)pr_val = 0;
   3285 			break;
   3286 		case MAC_PROP_ADV_1000FDX_CAP:
   3287 		case MAC_PROP_ADV_100FDX_CAP:
   3288 		case MAC_PROP_ADV_10FDX_CAP:
   3289 		case MAC_PROP_ADV_1000HDX_CAP:
   3290 		case MAC_PROP_ADV_100HDX_CAP:
   3291 		case MAC_PROP_ADV_10HDX_CAP:
   3292 		case MAC_PROP_EN_1000FDX_CAP:
   3293 		case MAC_PROP_EN_100FDX_CAP:
   3294 		case MAC_PROP_EN_10FDX_CAP:
   3295 		case MAC_PROP_EN_1000HDX_CAP:
   3296 		case MAC_PROP_EN_100HDX_CAP:
   3297 		case MAC_PROP_EN_10HDX_CAP:
   3298 			err = ENOTSUP;
   3299 			break;
   3300 
   3301 		case MAC_PROP_PRIVATE:
   3302 			err = hxge_get_priv_prop(hxgep, pr_name, pr_flags,
   3303 			    pr_valsize, pr_val);
   3304 			break;
   3305 		case MAC_PROP_MTU: {
   3306 			mac_propval_range_t range;
   3307 
   3308 			if (!(pr_flags & MAC_PROP_POSSIBLE))
   3309 				return (ENOTSUP);
   3310 			if (pr_valsize < sizeof (mac_propval_range_t))
   3311 				return (EINVAL);
   3312 			range.mpr_count = 1;
   3313 			range.mpr_type = MAC_PROPVAL_UINT32;
   3314 			range.range_uint32[0].mpur_min = MIN_FRAME_SIZE -
   3315 			    MTU_TO_FRAME_SIZE;
   3316 			range.range_uint32[0].mpur_max = MAX_FRAME_SIZE -
   3317 			    MTU_TO_FRAME_SIZE;
   3318 			bcopy(&range, pr_val, sizeof (range));
   3319 			break;
   3320 		}
   3321 		default:
   3322 			err = EINVAL;
   3323 			break;
   3324 	}
   3325 
   3326 	HXGE_DEBUG_MSG((hxgep, DLADM_CTL, "<== hxge_m_getprop"));
   3327 
   3328 	return (err);
   3329 }
   3330 
   3331 /* ARGSUSED */
   3332 static int
   3333 hxge_set_priv_prop(p_hxge_t hxgep, const char *pr_name, uint_t pr_valsize,
   3334     const void *pr_val)
   3335 {
   3336 	p_hxge_param_t	param_arr = hxgep->param_arr;
   3337 	int		err = 0;
   3338 
   3339 	HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
   3340 	    "==> hxge_set_priv_prop: name %s (value %s)", pr_name, pr_val));
   3341 
   3342 	if (pr_val == NULL) {
   3343 		return (EINVAL);
   3344 	}
   3345 
   3346 	/* Blanking */
   3347 	if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
   3348 		err = hxge_param_rx_intr_time(hxgep, NULL, NULL,
   3349 		    (char *)pr_val, (caddr_t)&param_arr[param_rxdma_intr_time]);
   3350 	} else if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
   3351 		err = hxge_param_rx_intr_pkts(hxgep, NULL, NULL,
   3352 		    (char *)pr_val, (caddr_t)&param_arr[param_rxdma_intr_pkts]);
   3353 
   3354 	/* Classification */
   3355 	} else if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
   3356 		err = hxge_param_set_ip_opt(hxgep, NULL, NULL, (char *)pr_val,
   3357 		    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
   3358 	} else if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
   3359 		err = hxge_param_set_ip_opt(hxgep, NULL, NULL, (char *)pr_val,
   3360 		    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
   3361 	} else if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
   3362 		err = hxge_param_set_ip_opt(hxgep, NULL, NULL, (char *)pr_val,
   3363 		    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
   3364 	} else if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
   3365 		err = hxge_param_set_ip_opt(hxgep, NULL, NULL, (char *)pr_val,
   3366 		    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
   3367 	} else if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
   3368 		err = hxge_param_set_ip_opt(hxgep, NULL, NULL, (char *)pr_val,
   3369 		    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
   3370 	} else if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
   3371 		err = hxge_param_set_ip_opt(hxgep, NULL, NULL, (char *)pr_val,
   3372 		    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
   3373 	} else if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
   3374 		err = hxge_param_set_ip_opt(hxgep, NULL, NULL, (char *)pr_val,
   3375 		    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
   3376 	} else if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
   3377 		err = hxge_param_set_ip_opt(hxgep, NULL, NULL, (char *)pr_val,
   3378 		    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
   3379 	} else {
   3380 		err = EINVAL;
   3381 	}
   3382 
   3383 	HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
   3384 	    "<== hxge_set_priv_prop: err %d", err));
   3385 
   3386 	return (err);
   3387 }
   3388 
   3389 static int
   3390 hxge_get_priv_prop(p_hxge_t hxgep, const char *pr_name, uint_t pr_flags,
   3391     uint_t pr_valsize, void *pr_val)
   3392 {
   3393 	p_hxge_param_t	param_arr = hxgep->param_arr;
   3394 	char		valstr[MAXNAMELEN];
   3395 	int		err = 0;
   3396 	uint_t		strsize;
   3397 	int		value = 0;
   3398 
   3399 	HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
   3400 	    "==> hxge_get_priv_prop: property %s", pr_name));
   3401 
   3402 	if (pr_flags & MAC_PROP_DEFAULT) {
   3403 		/* Receive Interrupt Blanking Parameters */
   3404 		if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
   3405 			value = RXDMA_RCR_TO_DEFAULT;
   3406 		} else if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
   3407 			value = RXDMA_RCR_PTHRES_DEFAULT;
   3408 
   3409 		/* Classification and Load Distribution Configuration */
   3410 		} else if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0 ||
   3411 		    strcmp(pr_name, "_class_opt_ipv4_udp") == 0 ||
   3412 		    strcmp(pr_name, "_class_opt_ipv4_ah") == 0 ||
   3413 		    strcmp(pr_name, "_class_opt_ipv4_sctp") == 0 ||
   3414 		    strcmp(pr_name, "_class_opt_ipv6_tcp") == 0 ||
   3415 		    strcmp(pr_name, "_class_opt_ipv6_udp") == 0 ||
   3416 		    strcmp(pr_name, "_class_opt_ipv6_ah") == 0 ||
   3417 		    strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
   3418 			value = HXGE_CLASS_TCAM_LOOKUP;
   3419 		} else {
   3420 			err = EINVAL;
   3421 		}
   3422 	} else {
   3423 		/* Receive Interrupt Blanking Parameters */
   3424 		if (strcmp(pr_name, "_rxdma_intr_time") == 0) {
   3425 			value = hxgep->intr_timeout;
   3426 		} else if (strcmp(pr_name, "_rxdma_intr_pkts") == 0) {
   3427 			value = hxgep->intr_threshold;
   3428 
   3429 		/* Classification and Load Distribution Configuration */
   3430 		} else if (strcmp(pr_name, "_class_opt_ipv4_tcp") == 0) {
   3431 			err = hxge_param_get_ip_opt(hxgep, NULL, NULL,
   3432 			    (caddr_t)&param_arr[param_class_opt_ipv4_tcp]);
   3433 
   3434 			value = (int)param_arr[param_class_opt_ipv4_tcp].value;
   3435 		} else if (strcmp(pr_name, "_class_opt_ipv4_udp") == 0) {
   3436 			err = hxge_param_get_ip_opt(hxgep, NULL, NULL,
   3437 			    (caddr_t)&param_arr[param_class_opt_ipv4_udp]);
   3438 
   3439 			value = (int)param_arr[param_class_opt_ipv4_udp].value;
   3440 		} else if (strcmp(pr_name, "_class_opt_ipv4_ah") == 0) {
   3441 			err = hxge_param_get_ip_opt(hxgep, NULL, NULL,
   3442 			    (caddr_t)&param_arr[param_class_opt_ipv4_ah]);
   3443 
   3444 			value = (int)param_arr[param_class_opt_ipv4_ah].value;
   3445 		} else if (strcmp(pr_name, "_class_opt_ipv4_sctp") == 0) {
   3446 			err = hxge_param_get_ip_opt(hxgep, NULL, NULL,
   3447 			    (caddr_t)&param_arr[param_class_opt_ipv4_sctp]);
   3448 
   3449 			value = (int)param_arr[param_class_opt_ipv4_sctp].value;
   3450 		} else if (strcmp(pr_name, "_class_opt_ipv6_tcp") == 0) {
   3451 			err = hxge_param_get_ip_opt(hxgep, NULL, NULL,
   3452 			    (caddr_t)&param_arr[param_class_opt_ipv6_tcp]);
   3453 
   3454 			value = (int)param_arr[param_class_opt_ipv6_tcp].value;
   3455 		} else if (strcmp(pr_name, "_class_opt_ipv6_udp") == 0) {
   3456 			err = hxge_param_get_ip_opt(hxgep, NULL, NULL,
   3457 			    (caddr_t)&param_arr[param_class_opt_ipv6_udp]);
   3458 
   3459 			value = (int)param_arr[param_class_opt_ipv6_udp].value;
   3460 		} else if (strcmp(pr_name, "_class_opt_ipv6_ah") == 0) {
   3461 			err = hxge_param_get_ip_opt(hxgep, NULL, NULL,
   3462 			    (caddr_t)&param_arr[param_class_opt_ipv6_ah]);
   3463 
   3464 			value = (int)param_arr[param_class_opt_ipv6_ah].value;
   3465 		} else if (strcmp(pr_name, "_class_opt_ipv6_sctp") == 0) {
   3466 			err = hxge_param_get_ip_opt(hxgep, NULL, NULL,
   3467 			    (caddr_t)&param_arr[param_class_opt_ipv6_sctp]);
   3468 
   3469 			value = (int)param_arr[param_class_opt_ipv6_sctp].value;
   3470 		} else {
   3471 			err = EINVAL;
   3472 		}
   3473 	}
   3474 
   3475 	if (err == 0) {
   3476 		(void) snprintf(valstr, sizeof (valstr), "0x%x", value);
   3477 
   3478 		strsize = (uint_t)strlen(valstr);
   3479 		if (pr_valsize < strsize) {
   3480 			err = ENOBUFS;
   3481 		} else {
   3482 			(void) strlcpy(pr_val, valstr, pr_valsize);
   3483 		}
   3484 	}
   3485 
   3486 	HXGE_DEBUG_MSG((hxgep, DLADM_CTL,
   3487 	    "<== hxge_get_priv_prop: return %d", err));
   3488 
   3489 	return (err);
   3490 }
   3491 /*
   3492  * Module loading and removing entry points.
   3493  */
   3494 DDI_DEFINE_STREAM_OPS(hxge_dev_ops, nulldev, nulldev, hxge_attach, hxge_detach,
   3495     nodev, NULL, D_MP, NULL, NULL);
   3496 
   3497 extern struct mod_ops mod_driverops;
   3498 
   3499 #define	HXGE_DESC_VER	"HXGE 10Gb Ethernet Driver"
   3500 
   3501 /*
   3502  * Module linkage information for the kernel.
   3503  */
   3504 static struct modldrv hxge_modldrv = {
   3505 	&mod_driverops,
   3506 	HXGE_DESC_VER,
   3507 	&hxge_dev_ops
   3508 };
   3509 
   3510 static struct modlinkage modlinkage = {
   3511 	MODREV_1, (void *) &hxge_modldrv, NULL
   3512 };
   3513 
   3514 int
   3515 _init(void)
   3516 {
   3517 	int status;
   3518 
   3519 	HXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _init"));
   3520 	mac_init_ops(&hxge_dev_ops, "hxge");
   3521 	status = ddi_soft_state_init(&hxge_list, sizeof (hxge_t), 0);
   3522 	if (status != 0) {
   3523 		HXGE_ERROR_MSG((NULL, HXGE_ERR_CTL,
   3524 		    "failed to init device soft state"));
   3525 		mac_fini_ops(&hxge_dev_ops);
   3526 		goto _init_exit;
   3527 	}
   3528 
   3529 	status = mod_install(&modlinkage);
   3530 	if (status != 0) {
   3531 		ddi_soft_state_fini(&hxge_list);
   3532 		HXGE_ERROR_MSG((NULL, HXGE_ERR_CTL, "Mod install failed"));
   3533 		goto _init_exit;
   3534 	}
   3535 
   3536 	MUTEX_INIT(&hxge_common_lock, NULL, MUTEX_DRIVER, NULL);
   3537 
   3538 _init_exit:
   3539 	HXGE_DEBUG_MSG((NULL, MOD_CTL, "_init status = 0x%X", status));
   3540 
   3541 	return (status);
   3542 }
   3543 
   3544 int
   3545 _fini(void)
   3546 {
   3547 	int status;
   3548 
   3549 	HXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini"));
   3550 
   3551 	HXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _fini: mod_remove"));
   3552 
   3553 	if (hxge_mblks_pending)
   3554 		return (EBUSY);
   3555 
   3556 	status = mod_remove(&modlinkage);
   3557 	if (status != DDI_SUCCESS) {
   3558 		HXGE_DEBUG_MSG((NULL, MOD_CTL,
   3559 		    "Module removal failed 0x%08x", status));
   3560 		goto _fini_exit;
   3561 	}
   3562 
   3563 	mac_fini_ops(&hxge_dev_ops);
   3564 
   3565 	ddi_soft_state_fini(&hxge_list);
   3566 
   3567 	MUTEX_DESTROY(&hxge_common_lock);
   3568 
   3569 _fini_exit:
   3570 	HXGE_DEBUG_MSG((NULL, MOD_CTL, "_fini status = 0x%08x", status));
   3571 
   3572 	return (status);
   3573 }
   3574 
   3575 int
   3576 _info(struct modinfo *modinfop)
   3577 {
   3578 	int status;
   3579 
   3580 	HXGE_DEBUG_MSG((NULL, MOD_CTL, "==> _info"));
   3581 	status = mod_info(&modlinkage, modinfop);
   3582 	HXGE_DEBUG_MSG((NULL, MOD_CTL, " _info status = 0x%X", status));
   3583 
   3584 	return (status);
   3585 }
   3586 
   3587 /*ARGSUSED*/
   3588 static hxge_status_t
   3589 hxge_add_intrs(p_hxge_t hxgep)
   3590 {
   3591 	int		intr_types;
   3592 	int		type = 0;
   3593 	int		ddi_status = DDI_SUCCESS;
   3594 	hxge_status_t	status = HXGE_OK;
   3595 
   3596 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs"));
   3597 
   3598 	hxgep->hxge_intr_type.intr_registered = B_FALSE;
   3599 	hxgep->hxge_intr_type.intr_enabled = B_FALSE;
   3600 	hxgep->hxge_intr_type.msi_intx_cnt = 0;
   3601 	hxgep->hxge_intr_type.intr_added = 0;
   3602 	hxgep->hxge_intr_type.niu_msi_enable = B_FALSE;
   3603 	hxgep->hxge_intr_type.intr_type = 0;
   3604 
   3605 	if (hxge_msi_enable) {
   3606 		hxgep->hxge_intr_type.niu_msi_enable = B_TRUE;
   3607 	}
   3608 
   3609 	/* Get the supported interrupt types */
   3610 	if ((ddi_status = ddi_intr_get_supported_types(hxgep->dip, &intr_types))
   3611 	    != DDI_SUCCESS) {
   3612 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "<== hxge_add_intrs: "
   3613 		    "ddi_intr_get_supported_types failed: status 0x%08x",
   3614 		    ddi_status));
   3615 		return (HXGE_ERROR | HXGE_DDI_FAILED);
   3616 	}
   3617 
   3618 	hxgep->hxge_intr_type.intr_types = intr_types;
   3619 
   3620 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs: "
   3621 	    "ddi_intr_get_supported_types: 0x%08x", intr_types));
   3622 
   3623 	/*
   3624 	 * Pick the interrupt type to use MSIX, MSI, INTX hxge_msi_enable:
   3625 	 *	(1): 1 - MSI
   3626 	 *	(2): 2 - MSI-X
   3627 	 *	others - FIXED
   3628 	 */
   3629 	switch (hxge_msi_enable) {
   3630 	default:
   3631 		type = DDI_INTR_TYPE_FIXED;
   3632 		HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs: "
   3633 		    "use fixed (intx emulation) type %08x", type));
   3634 		break;
   3635 
   3636 	case 2:
   3637 		HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs: "
   3638 		    "ddi_intr_get_supported_types: 0x%08x", intr_types));
   3639 		if (intr_types & DDI_INTR_TYPE_MSIX) {
   3640 			type = DDI_INTR_TYPE_MSIX;
   3641 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
   3642 			    "==> hxge_add_intrs: "
   3643 			    "ddi_intr_get_supported_types: MSIX 0x%08x", type));
   3644 		} else if (intr_types & DDI_INTR_TYPE_MSI) {
   3645 			type = DDI_INTR_TYPE_MSI;
   3646 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
   3647 			    "==> hxge_add_intrs: "
   3648 			    "ddi_intr_get_supported_types: MSI 0x%08x", type));
   3649 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
   3650 			type = DDI_INTR_TYPE_FIXED;
   3651 			HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs: "
   3652 			    "ddi_intr_get_supported_types: MSXED0x%08x", type));
   3653 		}
   3654 		break;
   3655 
   3656 	case 1:
   3657 		if (intr_types & DDI_INTR_TYPE_MSI) {
   3658 			type = DDI_INTR_TYPE_MSI;
   3659 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
   3660 			    "==> hxge_add_intrs: "
   3661 			    "ddi_intr_get_supported_types: MSI 0x%08x", type));
   3662 		} else if (intr_types & DDI_INTR_TYPE_MSIX) {
   3663 			type = DDI_INTR_TYPE_MSIX;
   3664 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
   3665 			    "==> hxge_add_intrs: "
   3666 			    "ddi_intr_get_supported_types: MSIX 0x%08x", type));
   3667 		} else if (intr_types & DDI_INTR_TYPE_FIXED) {
   3668 			type = DDI_INTR_TYPE_FIXED;
   3669 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
   3670 			    "==> hxge_add_intrs: "
   3671 			    "ddi_intr_get_supported_types: MSXED0x%08x", type));
   3672 		}
   3673 	}
   3674 
   3675 	hxgep->hxge_intr_type.intr_type = type;
   3676 	if ((type == DDI_INTR_TYPE_MSIX || type == DDI_INTR_TYPE_MSI ||
   3677 	    type == DDI_INTR_TYPE_FIXED) &&
   3678 	    hxgep->hxge_intr_type.niu_msi_enable) {
   3679 		if ((status = hxge_add_intrs_adv(hxgep)) != DDI_SUCCESS) {
   3680 			HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   3681 			    " hxge_add_intrs: "
   3682 			    " hxge_add_intrs_adv failed: status 0x%08x",
   3683 			    status));
   3684 			return (status);
   3685 		} else {
   3686 			HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_add_intrs: "
   3687 			    "interrupts registered : type %d", type));
   3688 			hxgep->hxge_intr_type.intr_registered = B_TRUE;
   3689 
   3690 			HXGE_DEBUG_MSG((hxgep, DDI_CTL,
   3691 			    "\nAdded advanced hxge add_intr_adv "
   3692 			    "intr type 0x%x\n", type));
   3693 
   3694 			return (status);
   3695 		}
   3696 	}
   3697 
   3698 	if (!hxgep->hxge_intr_type.intr_registered) {
   3699 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   3700 		    "==> hxge_add_intrs: failed to register interrupts"));
   3701 		return (HXGE_ERROR | HXGE_DDI_FAILED);
   3702 	}
   3703 
   3704 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_add_intrs"));
   3705 
   3706 	return (status);
   3707 }
   3708 
   3709 /*ARGSUSED*/
   3710 static hxge_status_t
   3711 hxge_add_intrs_adv(p_hxge_t hxgep)
   3712 {
   3713 	int		intr_type;
   3714 	p_hxge_intr_t	intrp;
   3715 	hxge_status_t	status;
   3716 
   3717 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs_adv"));
   3718 
   3719 	intrp = (p_hxge_intr_t)&hxgep->hxge_intr_type;
   3720 	intr_type = intrp->intr_type;
   3721 
   3722 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs_adv: type 0x%x",
   3723 	    intr_type));
   3724 
   3725 	switch (intr_type) {
   3726 	case DDI_INTR_TYPE_MSI:		/* 0x2 */
   3727 	case DDI_INTR_TYPE_MSIX:	/* 0x4 */
   3728 		status = hxge_add_intrs_adv_type(hxgep, intr_type);
   3729 		break;
   3730 
   3731 	case DDI_INTR_TYPE_FIXED:	/* 0x1 */
   3732 		status = hxge_add_intrs_adv_type_fix(hxgep, intr_type);
   3733 		break;
   3734 
   3735 	default:
   3736 		status = HXGE_ERROR;
   3737 		break;
   3738 	}
   3739 
   3740 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_add_intrs_adv"));
   3741 
   3742 	return (status);
   3743 }
   3744 
   3745 /*ARGSUSED*/
   3746 static hxge_status_t
   3747 hxge_add_intrs_adv_type(p_hxge_t hxgep, uint32_t int_type)
   3748 {
   3749 	dev_info_t	*dip = hxgep->dip;
   3750 	p_hxge_ldg_t	ldgp;
   3751 	p_hxge_intr_t	intrp;
   3752 	uint_t		*inthandler;
   3753 	void		*arg1, *arg2;
   3754 	int		behavior;
   3755 	int		nintrs, navail;
   3756 	int		nactual, nrequired, nrequest;
   3757 	int		inum = 0;
   3758 	int		loop = 0;
   3759 	int		x, y;
   3760 	int		ddi_status = DDI_SUCCESS;
   3761 	hxge_status_t	status = HXGE_OK;
   3762 
   3763 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs_adv_type"));
   3764 
   3765 	intrp = (p_hxge_intr_t)&hxgep->hxge_intr_type;
   3766 
   3767 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
   3768 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
   3769 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   3770 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
   3771 		    "nintrs: %d", ddi_status, nintrs));
   3772 		return (HXGE_ERROR | HXGE_DDI_FAILED);
   3773 	}
   3774 
   3775 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
   3776 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
   3777 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   3778 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
   3779 		    "nintrs: %d", ddi_status, navail));
   3780 		return (HXGE_ERROR | HXGE_DDI_FAILED);
   3781 	}
   3782 
   3783 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
   3784 	    "ddi_intr_get_navail() returned: intr type %d nintrs %d, navail %d",
   3785 	    int_type, nintrs, navail));
   3786 
   3787 	/* PSARC/2007/453 MSI-X interrupt limit override */
   3788 	if (int_type == DDI_INTR_TYPE_MSIX) {
   3789 		nrequest = hxge_create_msi_property(hxgep);
   3790 		if (nrequest < navail) {
   3791 			navail = nrequest;
   3792 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
   3793 			    "hxge_add_intrs_adv_type: nintrs %d "
   3794 			    "navail %d (nrequest %d)",
   3795 			    nintrs, navail, nrequest));
   3796 		}
   3797 	}
   3798 
   3799 	if (int_type == DDI_INTR_TYPE_MSI && !ISP2(navail)) {
   3800 		/* MSI must be power of 2 */
   3801 		if ((navail & 16) == 16) {
   3802 			navail = 16;
   3803 		} else if ((navail & 8) == 8) {
   3804 			navail = 8;
   3805 		} else if ((navail & 4) == 4) {
   3806 			navail = 4;
   3807 		} else if ((navail & 2) == 2) {
   3808 			navail = 2;
   3809 		} else {
   3810 			navail = 1;
   3811 		}
   3812 		HXGE_DEBUG_MSG((hxgep, INT_CTL,
   3813 		    "ddi_intr_get_navail(): (msi power of 2) nintrs %d, "
   3814 		    "navail %d", nintrs, navail));
   3815 	}
   3816 
   3817 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
   3818 	    "requesting: intr type %d nintrs %d, navail %d",
   3819 	    int_type, nintrs, navail));
   3820 
   3821 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
   3822 	    DDI_INTR_ALLOC_NORMAL);
   3823 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
   3824 	intrp->htable = kmem_zalloc(intrp->intr_size, KM_SLEEP);
   3825 
   3826 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
   3827 	    navail, &nactual, behavior);
   3828 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
   3829 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   3830 		    " ddi_intr_alloc() failed: %d", ddi_status));
   3831 		kmem_free(intrp->htable, intrp->intr_size);
   3832 		return (HXGE_ERROR | HXGE_DDI_FAILED);
   3833 	}
   3834 
   3835 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
   3836 	    "ddi_intr_alloc() returned: navail %d nactual %d",
   3837 	    navail, nactual));
   3838 
   3839 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
   3840 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
   3841 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   3842 		    " ddi_intr_get_pri() failed: %d", ddi_status));
   3843 		/* Free already allocated interrupts */
   3844 		for (y = 0; y < nactual; y++) {
   3845 			(void) ddi_intr_free(intrp->htable[y]);
   3846 		}
   3847 
   3848 		kmem_free(intrp->htable, intrp->intr_size);
   3849 		return (HXGE_ERROR | HXGE_DDI_FAILED);
   3850 	}
   3851 
   3852 	nrequired = 0;
   3853 	status = hxge_ldgv_init(hxgep, &nactual, &nrequired);
   3854 	if (status != HXGE_OK) {
   3855 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   3856 		    "hxge_add_intrs_adv_typ:hxge_ldgv_init "
   3857 		    "failed: 0x%x", status));
   3858 		/* Free already allocated interrupts */
   3859 		for (y = 0; y < nactual; y++) {
   3860 			(void) ddi_intr_free(intrp->htable[y]);
   3861 		}
   3862 
   3863 		kmem_free(intrp->htable, intrp->intr_size);
   3864 		return (status);
   3865 	}
   3866 
   3867 	ldgp = hxgep->ldgvp->ldgp;
   3868 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
   3869 	    "After hxge_ldgv_init(): nreq %d nactual %d", nrequired, nactual));
   3870 
   3871 	if (nactual < nrequired)
   3872 		loop = nactual;
   3873 	else
   3874 		loop = nrequired;
   3875 
   3876 	for (x = 0; x < loop; x++, ldgp++) {
   3877 		ldgp->vector = (uint8_t)x;
   3878 		arg1 = ldgp->ldvp;
   3879 		arg2 = hxgep;
   3880 		if (ldgp->nldvs == 1) {
   3881 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
   3882 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
   3883 			    "hxge_add_intrs_adv_type: arg1 0x%x arg2 0x%x: "
   3884 			    "1-1 int handler (entry %d)\n",
   3885 			    arg1, arg2, x));
   3886 		} else if (ldgp->nldvs > 1) {
   3887 			inthandler = (uint_t *)ldgp->sys_intr_handler;
   3888 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
   3889 			    "hxge_add_intrs_adv_type: arg1 0x%x arg2 0x%x: "
   3890 			    "nldevs %d int handler (entry %d)\n",
   3891 			    arg1, arg2, ldgp->nldvs, x));
   3892 		}
   3893 		HXGE_DEBUG_MSG((hxgep, INT_CTL,
   3894 		    "==> hxge_add_intrs_adv_type: ddi_add_intr(inum) #%d "
   3895 		    "htable 0x%llx", x, intrp->htable[x]));
   3896 
   3897 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
   3898 		    (ddi_intr_handler_t *)inthandler, arg1, arg2)) !=
   3899 		    DDI_SUCCESS) {
   3900 			HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   3901 			    "==> hxge_add_intrs_adv_type: failed #%d "
   3902 			    "status 0x%x", x, ddi_status));
   3903 			for (y = 0; y < intrp->intr_added; y++) {
   3904 				(void) ddi_intr_remove_handler(
   3905 				    intrp->htable[y]);
   3906 			}
   3907 
   3908 			/* Free already allocated intr */
   3909 			for (y = 0; y < nactual; y++) {
   3910 				(void) ddi_intr_free(intrp->htable[y]);
   3911 			}
   3912 			kmem_free(intrp->htable, intrp->intr_size);
   3913 
   3914 			(void) hxge_ldgv_uninit(hxgep);
   3915 
   3916 			return (HXGE_ERROR | HXGE_DDI_FAILED);
   3917 		}
   3918 
   3919 		intrp->intr_added++;
   3920 	}
   3921 	intrp->msi_intx_cnt = nactual;
   3922 
   3923 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
   3924 	    "Requested: %d, Allowed: %d msi_intx_cnt %d intr_added %d",
   3925 	    navail, nactual, intrp->msi_intx_cnt, intrp->intr_added));
   3926 
   3927 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
   3928 	(void) hxge_intr_ldgv_init(hxgep);
   3929 
   3930 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_add_intrs_adv_type"));
   3931 
   3932 	return (status);
   3933 }
   3934 
   3935 /*ARGSUSED*/
   3936 static hxge_status_t
   3937 hxge_add_intrs_adv_type_fix(p_hxge_t hxgep, uint32_t int_type)
   3938 {
   3939 	dev_info_t	*dip = hxgep->dip;
   3940 	p_hxge_ldg_t	ldgp;
   3941 	p_hxge_intr_t	intrp;
   3942 	uint_t		*inthandler;
   3943 	void		*arg1, *arg2;
   3944 	int		behavior;
   3945 	int		nintrs, navail;
   3946 	int		nactual, nrequired;
   3947 	int		inum = 0;
   3948 	int		x, y;
   3949 	int		ddi_status = DDI_SUCCESS;
   3950 	hxge_status_t	status = HXGE_OK;
   3951 
   3952 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_add_intrs_adv_type_fix"));
   3953 	intrp = (p_hxge_intr_t)&hxgep->hxge_intr_type;
   3954 
   3955 	ddi_status = ddi_intr_get_nintrs(dip, int_type, &nintrs);
   3956 	if ((ddi_status != DDI_SUCCESS) || (nintrs == 0)) {
   3957 		HXGE_DEBUG_MSG((hxgep, INT_CTL,
   3958 		    "ddi_intr_get_nintrs() failed, status: 0x%x%, "
   3959 		    "nintrs: %d", status, nintrs));
   3960 		return (HXGE_ERROR | HXGE_DDI_FAILED);
   3961 	}
   3962 
   3963 	ddi_status = ddi_intr_get_navail(dip, int_type, &navail);
   3964 	if ((ddi_status != DDI_SUCCESS) || (navail == 0)) {
   3965 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   3966 		    "ddi_intr_get_navail() failed, status: 0x%x%, "
   3967 		    "nintrs: %d", ddi_status, navail));
   3968 		return (HXGE_ERROR | HXGE_DDI_FAILED);
   3969 	}
   3970 
   3971 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
   3972 	    "ddi_intr_get_navail() returned: nintrs %d, naavail %d",
   3973 	    nintrs, navail));
   3974 
   3975 	behavior = ((int_type == DDI_INTR_TYPE_FIXED) ? DDI_INTR_ALLOC_STRICT :
   3976 	    DDI_INTR_ALLOC_NORMAL);
   3977 	intrp->intr_size = navail * sizeof (ddi_intr_handle_t);
   3978 	intrp->htable = kmem_alloc(intrp->intr_size, KM_SLEEP);
   3979 	ddi_status = ddi_intr_alloc(dip, intrp->htable, int_type, inum,
   3980 	    navail, &nactual, behavior);
   3981 	if (ddi_status != DDI_SUCCESS || nactual == 0) {
   3982 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   3983 		    " ddi_intr_alloc() failed: %d", ddi_status));
   3984 		kmem_free(intrp->htable, intrp->intr_size);
   3985 		return (HXGE_ERROR | HXGE_DDI_FAILED);
   3986 	}
   3987 
   3988 	if ((ddi_status = ddi_intr_get_pri(intrp->htable[0],
   3989 	    (uint_t *)&intrp->pri)) != DDI_SUCCESS) {
   3990 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   3991 		    " ddi_intr_get_pri() failed: %d", ddi_status));
   3992 		/* Free already allocated interrupts */
   3993 		for (y = 0; y < nactual; y++) {
   3994 			(void) ddi_intr_free(intrp->htable[y]);
   3995 		}
   3996 
   3997 		kmem_free(intrp->htable, intrp->intr_size);
   3998 		return (HXGE_ERROR | HXGE_DDI_FAILED);
   3999 	}
   4000 
   4001 	nrequired = 0;
   4002 	status = hxge_ldgv_init(hxgep, &nactual, &nrequired);
   4003 	if (status != HXGE_OK) {
   4004 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   4005 		    "hxge_add_intrs_adv_type_fix:hxge_ldgv_init "
   4006 		    "failed: 0x%x", status));
   4007 		/* Free already allocated interrupts */
   4008 		for (y = 0; y < nactual; y++) {
   4009 			(void) ddi_intr_free(intrp->htable[y]);
   4010 		}
   4011 
   4012 		kmem_free(intrp->htable, intrp->intr_size);
   4013 		return (status);
   4014 	}
   4015 
   4016 	ldgp = hxgep->ldgvp->ldgp;
   4017 	for (x = 0; x < nrequired; x++, ldgp++) {
   4018 		ldgp->vector = (uint8_t)x;
   4019 		arg1 = ldgp->ldvp;
   4020 		arg2 = hxgep;
   4021 		if (ldgp->nldvs == 1) {
   4022 			inthandler = (uint_t *)ldgp->ldvp->ldv_intr_handler;
   4023 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
   4024 			    "hxge_add_intrs_adv_type_fix: "
   4025 			    "1-1 int handler(%d) ldg %d ldv %d "
   4026 			    "arg1 $%p arg2 $%p\n",
   4027 			    x, ldgp->ldg, ldgp->ldvp->ldv, arg1, arg2));
   4028 		} else if (ldgp->nldvs > 1) {
   4029 			inthandler = (uint_t *)ldgp->sys_intr_handler;
   4030 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
   4031 			    "hxge_add_intrs_adv_type_fix: "
   4032 			    "shared ldv %d int handler(%d) ldv %d ldg %d"
   4033 			    "arg1 0x%016llx arg2 0x%016llx\n",
   4034 			    x, ldgp->nldvs, ldgp->ldg, ldgp->ldvp->ldv,
   4035 			    arg1, arg2));
   4036 		}
   4037 
   4038 		if ((ddi_status = ddi_intr_add_handler(intrp->htable[x],
   4039 		    (ddi_intr_handler_t *)inthandler, arg1, arg2)) !=
   4040 		    DDI_SUCCESS) {
   4041 			HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
   4042 			    "==> hxge_add_intrs_adv_type_fix: failed #%d "
   4043 			    "status 0x%x", x, ddi_status));
   4044 			for (y = 0; y < intrp->intr_added; y++) {
   4045 				(void) ddi_intr_remove_handler(
   4046 				    intrp->htable[y]);
   4047 			}
   4048 			for (y = 0; y < nactual; y++) {
   4049 				(void) ddi_intr_free(intrp->htable[y]);
   4050 			}
   4051 			/* Free already allocated intr */
   4052 			kmem_free(intrp->htable, intrp->intr_size);
   4053 
   4054 			(void) hxge_ldgv_uninit(hxgep);
   4055 
   4056 			return (HXGE_ERROR | HXGE_DDI_FAILED);
   4057 		}
   4058 		intrp->intr_added++;
   4059 	}
   4060 
   4061 	intrp->msi_intx_cnt = nactual;
   4062 
   4063 	(void) ddi_intr_get_cap(intrp->htable[0], &intrp->intr_cap);
   4064 
   4065 	status = hxge_intr_ldgv_init(hxgep);
   4066 
   4067 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_add_intrs_adv_type_fix"));
   4068 
   4069 	return (status);
   4070 }
   4071 
   4072 /*ARGSUSED*/
   4073 static void
   4074 hxge_remove_intrs(p_hxge_t hxgep)
   4075 {
   4076 	int		i, inum;
   4077 	p_hxge_intr_t	intrp;
   4078 
   4079 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_remove_intrs"));
   4080 	intrp = (p_hxge_intr_t)&hxgep->hxge_intr_type;
   4081 	if (!intrp->intr_registered) {
   4082 		HXGE_DEBUG_MSG((hxgep, INT_CTL,
   4083 		    "<== hxge_remove_intrs: interrupts not registered"));
   4084 		return;
   4085 	}
   4086 
   4087 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_remove_intrs:advanced"));
   4088 
   4089 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
   4090 		(void) ddi_intr_block_disable(intrp->htable,
   4091 		    intrp->intr_added);
   4092 	} else {
   4093 		for (i = 0; i < intrp->intr_added; i++) {
   4094 			(void) ddi_intr_disable(intrp->htable[i]);
   4095 		}
   4096 	}
   4097 
   4098 	for (inum = 0; inum < intrp->intr_added; inum++) {
   4099 		if (intrp->htable[inum]) {
   4100 			(void) ddi_intr_remove_handler(intrp->htable[inum]);
   4101 		}
   4102 	}
   4103 
   4104 	for (inum = 0; inum < intrp->msi_intx_cnt; inum++) {
   4105 		if (intrp->htable[inum]) {
   4106 			HXGE_DEBUG_MSG((hxgep, DDI_CTL,
   4107 			    "hxge_remove_intrs: ddi_intr_free inum %d "
   4108 			    "msi_intx_cnt %d intr_added %d",
   4109 			    inum, intrp->msi_intx_cnt, intrp->intr_added));
   4110 
   4111 			(void) ddi_intr_free(intrp->htable[inum]);
   4112 		}
   4113 	}
   4114 
   4115 	kmem_free(intrp->htable, intrp->intr_size);
   4116 	intrp->intr_registered = B_FALSE;
   4117 	intrp->intr_enabled = B_FALSE;
   4118 	intrp->msi_intx_cnt = 0;
   4119 	intrp->intr_added = 0;
   4120 
   4121 	(void) hxge_ldgv_uninit(hxgep);
   4122 
   4123 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_remove_intrs"));
   4124 }
   4125 
   4126 /*ARGSUSED*/
   4127 static void
   4128 hxge_intrs_enable(p_hxge_t hxgep)
   4129 {
   4130 	p_hxge_intr_t	intrp;
   4131 	int		i;
   4132 	int		status;
   4133 
   4134 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intrs_enable"));
   4135 
   4136 	intrp = (p_hxge_intr_t)&hxgep->hxge_intr_type;
   4137 
   4138 	if (!intrp->intr_registered) {
   4139 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL, "<== hxge_intrs_enable: "
   4140 		    "interrupts are not registered"));
   4141 		return;
   4142 	}
   4143 
   4144 	if (intrp->intr_enabled) {
   4145 		HXGE_DEBUG_MSG((hxgep, INT_CTL,
   4146 		    "<== hxge_intrs_enable: already enabled"));
   4147 		return;
   4148 	}
   4149 
   4150 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
   4151 		status = ddi_intr_block_enable(intrp->htable,
   4152 		    intrp->intr_added);
   4153 		HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intrs_enable "
   4154 		    "block enable - status 0x%x total inums #%d\n",
   4155 		    status, intrp->intr_added));
   4156 	} else {
   4157 		for (i = 0; i < intrp->intr_added; i++) {
   4158 			status = ddi_intr_enable(intrp->htable[i]);
   4159 			HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intrs_enable "
   4160 			    "ddi_intr_enable:enable - status 0x%x "
   4161 			    "total inums %d enable inum #%d\n",
   4162 			    status, intrp->intr_added, i));
   4163 			if (status == DDI_SUCCESS) {
   4164 				intrp->intr_enabled = B_TRUE;
   4165 			}
   4166 		}
   4167 	}
   4168 
   4169 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_intrs_enable"));
   4170 }
   4171 
   4172 /*ARGSUSED*/
   4173 static void
   4174 hxge_intrs_disable(p_hxge_t hxgep)
   4175 {
   4176 	p_hxge_intr_t	intrp;
   4177 	int		i;
   4178 
   4179 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intrs_disable"));
   4180 
   4181 	intrp = (p_hxge_intr_t)&hxgep->hxge_intr_type;
   4182 
   4183 	if (!intrp->intr_registered) {
   4184 		HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_intrs_disable: "
   4185 		    "interrupts are not registered"));
   4186 		return;
   4187 	}
   4188 
   4189 	if (intrp->intr_cap & DDI_INTR_FLAG_BLOCK) {
   4190 		(void) ddi_intr_block_disable(intrp->htable,
   4191 		    intrp->intr_added);
   4192 	} else {
   4193 		for (i = 0; i < intrp->intr_added; i++) {
   4194 			(void) ddi_intr_disable(intrp->htable[i]);
   4195 		}
   4196 	}
   4197 
   4198 	intrp->intr_enabled = B_FALSE;
   4199 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_intrs_disable"));
   4200 }
   4201 
   4202 static hxge_status_t
   4203 hxge_mac_register(p_hxge_t hxgep)
   4204 {
   4205 	mac_register_t	*macp;
   4206 	int		status;
   4207 
   4208 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_mac_register"));
   4209 
   4210 	if ((macp = mac_alloc(MAC_VERSION)) == NULL)
   4211 		return (HXGE_ERROR);
   4212 
   4213 	macp->m_type_ident = MAC_PLUGIN_IDENT_ETHER;
   4214 	macp->m_driver = hxgep;
   4215 	macp->m_dip = hxgep->dip;
   4216 	macp->m_src_addr = hxgep->ouraddr.ether_addr_octet;
   4217 	macp->m_callbacks = &hxge_m_callbacks;
   4218 	macp->m_min_sdu = 0;
   4219 	macp->m_max_sdu = hxgep->vmac.maxframesize - MTU_TO_FRAME_SIZE;
   4220 	macp->m_margin = VLAN_TAGSZ;
   4221 	macp->m_priv_props = hxge_priv_props;
   4222 	macp->m_priv_prop_count = HXGE_MAX_PRIV_PROPS;
   4223 	macp->m_v12n = MAC_VIRT_LEVEL1;
   4224 
   4225 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
   4226 	    "hxge_mac_register: ether addr is %x:%x:%x:%x:%x:%x",
   4227 	    macp->m_src_addr[0],
   4228 	    macp->m_src_addr[1],
   4229 	    macp->m_src_addr[2],
   4230 	    macp->m_src_addr[3],
   4231 	    macp->m_src_addr[4],
   4232 	    macp->m_src_addr[5]));
   4233 
   4234 	status = mac_register(macp, &hxgep->mach);
   4235 	mac_free(macp);
   4236 
   4237 	if (status != 0) {
   4238 		cmn_err(CE_WARN,
   4239 		    "hxge_mac_register failed (status %d instance %d)",
   4240 		    status, hxgep->instance);
   4241 		return (HXGE_ERROR);
   4242 	}
   4243 
   4244 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_mac_register success "
   4245 	    "(instance %d)", hxgep->instance));
   4246 
   4247 	return (HXGE_OK);
   4248 }
   4249 
   4250 static int
   4251 hxge_init_common_dev(p_hxge_t hxgep)
   4252 {
   4253 	p_hxge_hw_list_t	hw_p;
   4254 	dev_info_t		*p_dip;
   4255 
   4256 	HXGE_DEBUG_MSG((hxgep, MOD_CTL, "==> hxge_init_common_dev"));
   4257 
   4258 	p_dip = hxgep->p_dip;
   4259 	MUTEX_ENTER(&hxge_common_lock);
   4260 
   4261 	/*
   4262 	 * Loop through existing per Hydra hardware list.
   4263 	 */
   4264 	for (hw_p = hxge_hw_list; hw_p; hw_p = hw_p->next) {
   4265 		HXGE_DEBUG_MSG((hxgep, MOD_CTL,
   4266 		    "==> hxge_init_common_dev: hw_p $%p parent dip $%p",
   4267 		    hw_p, p_dip));
   4268 		if (hw_p->parent_devp == p_dip) {
   4269 			hxgep->hxge_hw_p = hw_p;
   4270 			hw_p->ndevs++;
   4271 			hw_p->hxge_p = hxgep;
   4272 			HXGE_DEBUG_MSG((hxgep, MOD_CTL,
   4273 			    "==> hxge_init_common_device: "
   4274 			    "hw_p $%p parent dip $%p ndevs %d (found)",
   4275 			    hw_p, p_dip, hw_p->ndevs));
   4276 			break;
   4277 		}
   4278 	}
   4279 
   4280 	if (hw_p == NULL) {
   4281 		HXGE_DEBUG_MSG((hxgep, MOD_CTL,
   4282 		    "==> hxge_init_common_dev: parent dip $%p (new)", p_dip));
   4283 		hw_p = kmem_zalloc(sizeof (hxge_hw_list_t), KM_SLEEP);
   4284 		hw_p->parent_devp = p_dip;
   4285 		hw_p->magic = HXGE_MAGIC;
   4286 		hxgep->hxge_hw_p = hw_p;
   4287 		hw_p->ndevs++;
   4288 		hw_p->hxge_p = hxgep;
   4289 		hw_p->next = hxge_hw_list;
   4290 
   4291 		MUTEX_INIT(&hw_p->hxge_cfg_lock, NULL, MUTEX_DRIVER, NULL);
   4292 		MUTEX_INIT(&hw_p->hxge_tcam_lock, NULL, MUTEX_DRIVER, NULL);
   4293 		MUTEX_INIT(&hw_p->hxge_vlan_lock, NULL, MUTEX_DRIVER, NULL);
   4294 
   4295 		hxge_hw_list = hw_p;
   4296 	}
   4297 	MUTEX_EXIT(&hxge_common_lock);
   4298 	HXGE_DEBUG_MSG((hxgep, MOD_CTL,
   4299 	    "==> hxge_init_common_dev (hxge_hw_list) $%p", hxge_hw_list));
   4300 	HXGE_DEBUG_MSG((hxgep, MOD_CTL, "<== hxge_init_common_dev"));
   4301 
   4302 	return (HXGE_OK);
   4303 }
   4304 
   4305 static void
   4306 hxge_uninit_common_dev(p_hxge_t hxgep)
   4307 {
   4308 	p_hxge_hw_list_t	hw_p, h_hw_p;
   4309 	dev_info_t		*p_dip;
   4310 
   4311 	HXGE_DEBUG_MSG((hxgep, MOD_CTL, "==> hxge_uninit_common_dev"));
   4312 	if (hxgep->hxge_hw_p == NULL) {
   4313 		HXGE_DEBUG_MSG((hxgep, MOD_CTL,
   4314 		    "<== hxge_uninit_common_dev (no common)"));
   4315 		return;
   4316 	}
   4317 
   4318 	MUTEX_ENTER(&hxge_common_lock);
   4319 	h_hw_p = hxge_hw_list;
   4320 	for (hw_p = hxge_hw_list; hw_p; hw_p = hw_p->next) {
   4321 		p_dip = hw_p->parent_devp;
   4322 		if (hxgep->hxge_hw_p == hw_p && p_dip == hxgep->p_dip &&
   4323 		    hxgep->hxge_hw_p->magic == HXGE_MAGIC &&
   4324 		    hw_p->magic == HXGE_MAGIC) {
   4325 			HXGE_DEBUG_MSG((hxgep, MOD_CTL,
   4326 			    "==> hxge_uninit_common_dev: "
   4327 			    "hw_p $%p parent dip $%p ndevs %d (found)",
   4328 			    hw_p, p_dip, hw_p->ndevs));
   4329 
   4330 			hxgep->hxge_hw_p = NULL;
   4331 			if (hw_p->ndevs) {
   4332 				hw_p->ndevs--;
   4333 			}
   4334 			hw_p->hxge_p = NULL;
   4335 			if (!hw_p->ndevs) {
   4336 				MUTEX_DESTROY(&hw_p->hxge_vlan_lock);
   4337 				MUTEX_DESTROY(&hw_p->hxge_tcam_lock);
   4338 				MUTEX_DESTROY(&hw_p->hxge_cfg_lock);
   4339 				HXGE_DEBUG_MSG((hxgep, MOD_CTL,
   4340 				    "==> hxge_uninit_common_dev: "
   4341 				    "hw_p $%p parent dip $%p ndevs %d (last)",
   4342 				    hw_p, p_dip, hw_p->ndevs));
   4343 
   4344 				if (hw_p == hxge_hw_list) {
   4345 					HXGE_DEBUG_MSG((hxgep, MOD_CTL,
   4346 					    "==> hxge_uninit_common_dev:"
   4347 					    "remove head "
   4348 					    "hw_p $%p parent dip $%p "
   4349 					    "ndevs %d (head)",
   4350 					    hw_p, p_dip, hw_p->ndevs));
   4351 					hxge_hw_list = hw_p->next;
   4352 				} else {
   4353 					HXGE_DEBUG_MSG((hxgep, MOD_CTL,
   4354 					    "==> hxge_uninit_common_dev:"
   4355 					    "remove middle "
   4356 					    "hw_p $%p parent dip $%p "
   4357 					    "ndevs %d (middle)",
   4358 					    hw_p, p_dip, hw_p->ndevs));
   4359 					h_hw_p->next = hw_p->next;
   4360 				}
   4361 
   4362 				KMEM_FREE(hw_p, sizeof (hxge_hw_list_t));
   4363 			}
   4364 			break;
   4365 		} else {
   4366 			h_hw_p = hw_p;
   4367 		}
   4368 	}
   4369 
   4370 	MUTEX_EXIT(&hxge_common_lock);
   4371 	HXGE_DEBUG_MSG((hxgep, MOD_CTL,
   4372 	    "==> hxge_uninit_common_dev (hxge_hw_list) $%p", hxge_hw_list));
   4373 
   4374 	HXGE_DEBUG_MSG((hxgep, MOD_CTL, "<= hxge_uninit_common_dev"));
   4375 }
   4376 
   4377 #define	HXGE_MSIX_ENTRIES		32
   4378 #define	HXGE_MSIX_WAIT_COUNT		10
   4379 #define	HXGE_MSIX_PARITY_CHECK_COUNT	30
   4380 
   4381 static void
   4382 hxge_link_poll(void *arg)
   4383 {
   4384 	p_hxge_t		hxgep = (p_hxge_t)arg;
   4385 	hpi_handle_t		handle;
   4386 	cip_link_stat_t		link_stat;
   4387 	hxge_timeout		*to = &hxgep->timeout;
   4388 
   4389 	handle = HXGE_DEV_HPI_HANDLE(hxgep);
   4390 	HXGE_REG_RD32(handle, CIP_LINK_STAT, &link_stat.value);
   4391 
   4392 	if (to->report_link_status ||
   4393 	    (to->link_status != link_stat.bits.xpcs0_link_up)) {
   4394 		to->link_status = link_stat.bits.xpcs0_link_up;
   4395 		to->report_link_status = B_FALSE;
   4396 
   4397 		if (link_stat.bits.xpcs0_link_up) {
   4398 			hxge_link_update(hxgep, LINK_STATE_UP);
   4399 		} else {
   4400 			hxge_link_update(hxgep, LINK_STATE_DOWN);
   4401 		}
   4402 	}
   4403 
   4404 	/* Restart the link status timer to check the link status */
   4405 	MUTEX_ENTER(&to->lock);
   4406 	to->id = timeout(hxge_link_poll, arg, to->ticks);
   4407 	MUTEX_EXIT(&to->lock);
   4408 }
   4409 
   4410 static void
   4411 hxge_link_update(p_hxge_t hxgep, link_state_t state)
   4412 {
   4413 	p_hxge_stats_t		statsp = (p_hxge_stats_t)hxgep->statsp;
   4414 
   4415 	mac_link_update(hxgep->mach, state);
   4416 	if (state == LINK_STATE_UP) {
   4417 		statsp->mac_stats.link_speed = 10000;
   4418 		statsp->mac_stats.link_duplex = 2;
   4419 		statsp->mac_stats.link_up = 1;
   4420 	} else {
   4421 		statsp->mac_stats.link_speed = 0;
   4422 		statsp->mac_stats.link_duplex = 0;
   4423 		statsp->mac_stats.link_up = 0;
   4424 	}
   4425 }
   4426 
   4427 static void
   4428 hxge_msix_init(p_hxge_t hxgep)
   4429 {
   4430 	uint32_t 		data0;
   4431 	uint32_t 		data1;
   4432 	uint32_t 		data2;
   4433 	int			i;
   4434 	uint32_t		msix_entry0;
   4435 	uint32_t		msix_entry1;
   4436 	uint32_t		msix_entry2;
   4437 	uint32_t		msix_entry3;
   4438 
   4439 	/* Change to use MSIx bar instead of indirect access */
   4440 	for (i = 0; i < HXGE_MSIX_ENTRIES; i++) {
   4441 		data0 = 0xffffffff - i;
   4442 		data1 = 0xffffffff - i - 1;
   4443 		data2 = 0xffffffff - i - 2;
   4444 
   4445 		HXGE_REG_WR32(hxgep->hpi_msi_handle, i * 16, data0);
   4446 		HXGE_REG_WR32(hxgep->hpi_msi_handle, i * 16 + 4, data1);
   4447 		HXGE_REG_WR32(hxgep->hpi_msi_handle, i * 16 + 8, data2);
   4448 		HXGE_REG_WR32(hxgep->hpi_msi_handle, i * 16 + 12, 0);
   4449 	}
   4450 
   4451 	/* Initialize ram data out buffer. */
   4452 	for (i = 0; i < HXGE_MSIX_ENTRIES; i++) {
   4453 		HXGE_REG_RD32(hxgep->hpi_msi_handle, i * 16, &msix_entry0);
   4454 		HXGE_REG_RD32(hxgep->hpi_msi_handle, i * 16 + 4, &msix_entry1);
   4455 		HXGE_REG_RD32(hxgep->hpi_msi_handle, i * 16 + 8, &msix_entry2);
   4456 		HXGE_REG_RD32(hxgep->hpi_msi_handle, i * 16 + 12, &msix_entry3);
   4457 	}
   4458 }
   4459 
   4460 /*
   4461  * The following function is to support
   4462  * PSARC/2007/453 MSI-X interrupt limit override.
   4463  */
   4464 static int
   4465 hxge_create_msi_property(p_hxge_t hxgep)
   4466 {
   4467 	int	nmsi;
   4468 	extern	int ncpus;
   4469 
   4470 	HXGE_DEBUG_MSG((hxgep, MOD_CTL, "==>hxge_create_msi_property"));
   4471 
   4472 	(void) ddi_prop_create(DDI_DEV_T_NONE, hxgep->dip,
   4473 	    DDI_PROP_CANSLEEP, "#msix-request", NULL, 0);
   4474 	/*
   4475 	 * The maximum MSI-X requested will be 8.
   4476 	 * If the # of CPUs is less than 8, we will reqeust
   4477 	 * # MSI-X based on the # of CPUs.
   4478 	 */
   4479 	if (ncpus >= HXGE_MSIX_REQUEST_10G) {
   4480 		nmsi = HXGE_MSIX_REQUEST_10G;
   4481 	} else {
   4482 		nmsi = ncpus;
   4483 	}
   4484 
   4485 	HXGE_DEBUG_MSG((hxgep, MOD_CTL,
   4486 	    "==>hxge_create_msi_property(10G): exists 0x%x (nmsi %d)",
   4487 	    ddi_prop_exists(DDI_DEV_T_NONE, hxgep->dip,
   4488 	    DDI_PROP_CANSLEEP, "#msix-request"), nmsi));
   4489 
   4490 	HXGE_DEBUG_MSG((hxgep, MOD_CTL, "<==hxge_create_msi_property"));
   4491 	return (nmsi);
   4492 }
   4493