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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 #include <hxge_impl.h>
     27 
     28 lb_property_t lb_normal = {normal, "normal", hxge_lb_normal};
     29 lb_property_t lb_mac10g = {internal, "mac10g", hxge_lb_mac10g};
     30 
     31 uint32_t hxge_lb_dbg = 1;
     32 
     33 extern uint32_t hxge_jumbo_frame_size;
     34 
     35 static void hxge_rtrace_ioctl(p_hxge_t, queue_t *, mblk_t *, struct iocblk *);
     36 
     37 void
     38 hxge_global_reset(p_hxge_t hxgep)
     39 {
     40 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_global_reset"));
     41 
     42 	(void) hxge_intr_hw_disable(hxgep);
     43 
     44 	if (hxgep->suspended)
     45 		(void) hxge_link_init(hxgep);
     46 
     47 	(void) hxge_vmac_init(hxgep);
     48 
     49 	(void) hxge_intr_hw_enable(hxgep);
     50 
     51 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_global_reset"));
     52 }
     53 
     54 
     55 void
     56 hxge_hw_id_init(p_hxge_t hxgep)
     57 {
     58 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_hw_id_init"));
     59 
     60 	/*
     61 	 * Initialize the frame size to either standard "1500 + 38" or
     62 	 * jumbo. The user may tune the frame size through the "mtu" parameter
     63 	 * using "dladm set-linkprop"
     64 	 */
     65 	hxgep->vmac.minframesize = MIN_FRAME_SIZE;
     66 	hxgep->vmac.maxframesize = HXGE_DEFAULT_MTU + MTU_TO_FRAME_SIZE;
     67 	if (hxgep->param_arr[param_accept_jumbo].value)
     68 		hxgep->vmac.maxframesize = (uint16_t)hxge_jumbo_frame_size;
     69 
     70 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_hw_id_init: maxframesize %d",
     71 	    hxgep->vmac.maxframesize));
     72 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_hw_id_init"));
     73 }
     74 
     75 void
     76 hxge_hw_init_niu_common(p_hxge_t hxgep)
     77 {
     78 	p_hxge_hw_list_t hw_p;
     79 
     80 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_hw_init_niu_common"));
     81 
     82 	if ((hw_p = hxgep->hxge_hw_p) == NULL) {
     83 		return;
     84 	}
     85 
     86 	MUTEX_ENTER(&hw_p->hxge_cfg_lock);
     87 	if (hw_p->flags & COMMON_INIT_DONE) {
     88 		HXGE_DEBUG_MSG((hxgep, MOD_CTL, "hxge_hw_init_niu_common"
     89 		    " already done for dip $%p exiting", hw_p->parent_devp));
     90 		MUTEX_EXIT(&hw_p->hxge_cfg_lock);
     91 		return;
     92 	}
     93 
     94 	hw_p->flags = COMMON_INIT_START;
     95 	HXGE_DEBUG_MSG((hxgep, MOD_CTL,
     96 	    "hxge_hw_init_niu_common Started for device id %x",
     97 	    hw_p->parent_devp));
     98 
     99 	(void) hxge_pfc_hw_reset(hxgep);
    100 	hw_p->flags = COMMON_INIT_DONE;
    101 	MUTEX_EXIT(&hw_p->hxge_cfg_lock);
    102 
    103 	HXGE_DEBUG_MSG((hxgep, MOD_CTL,
    104 	    "hxge_hw_init_niu_common Done for device id %x",
    105 	    hw_p->parent_devp));
    106 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_hw_init_niu_common"));
    107 }
    108 
    109 uint_t
    110 hxge_intr(caddr_t arg1, caddr_t arg2)
    111 {
    112 	p_hxge_ldv_t		ldvp = (p_hxge_ldv_t)arg1;
    113 	p_hxge_t		hxgep = (p_hxge_t)arg2;
    114 	uint8_t			ldv;
    115 	hpi_handle_t		handle;
    116 	p_hxge_ldgv_t		ldgvp;
    117 	p_hxge_ldg_t		ldgp, t_ldgp;
    118 	p_hxge_ldv_t		t_ldvp;
    119 	uint32_t		vector0 = 0, vector1 = 0;
    120 	int			j, nldvs;
    121 	hpi_status_t		rs = HPI_SUCCESS;
    122 
    123 	/*
    124 	 * DDI interface returns second arg as NULL
    125 	 */
    126 	if ((arg2 == NULL) || ((void *) ldvp->hxgep != arg2)) {
    127 		hxgep = ldvp->hxgep;
    128 	}
    129 
    130 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intr"));
    131 
    132 	if (hxgep->hxge_mac_state != HXGE_MAC_STARTED) {
    133 		HXGE_ERROR_MSG((hxgep, INT_CTL,
    134 		    "<== hxge_intr: not initialized"));
    135 		return (DDI_INTR_UNCLAIMED);
    136 	}
    137 
    138 	ldgvp = hxgep->ldgvp;
    139 
    140 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intr: ldgvp $%p", ldgvp));
    141 
    142 	if (ldvp == NULL && ldgvp)
    143 		t_ldvp = ldvp = ldgvp->ldvp;
    144 	if (ldvp)
    145 		ldgp = t_ldgp = ldvp->ldgp;
    146 
    147 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intr: "
    148 	    "ldgvp $%p ldvp $%p ldgp $%p", ldgvp, ldvp, ldgp));
    149 
    150 	if (ldgvp == NULL || ldvp == NULL || ldgp == NULL) {
    151 		HXGE_ERROR_MSG((hxgep, INT_CTL, "==> hxge_intr: "
    152 		    "ldgvp $%p ldvp $%p ldgp $%p", ldgvp, ldvp, ldgp));
    153 		HXGE_ERROR_MSG((hxgep, INT_CTL, "<== hxge_intr: not ready"));
    154 		return (DDI_INTR_UNCLAIMED);
    155 	}
    156 
    157 	/*
    158 	 * This interrupt handler will have to go through
    159 	 * all the logical devices to find out which
    160 	 * logical device interrupts us and then call
    161 	 * its handler to process the events.
    162 	 */
    163 	handle = HXGE_DEV_HPI_HANDLE(hxgep);
    164 	t_ldgp = ldgp;
    165 	t_ldvp = ldgp->ldvp;
    166 	nldvs = ldgp->nldvs;
    167 
    168 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intr: #ldvs %d #intrs %d",
    169 	    nldvs, ldgvp->ldg_intrs));
    170 	HXGE_DEBUG_MSG((hxgep, INT_CTL,
    171 	    "==> hxge_intr(%d): #ldvs %d", i, nldvs));
    172 
    173 	/*
    174 	 * Get this group's flag bits.
    175 	 */
    176 	t_ldgp->interrupted = B_FALSE;
    177 	rs = hpi_ldsv_ldfs_get(handle, t_ldgp->ldg, &vector0, &vector1);
    178 	if (rs != HPI_SUCCESS)
    179 		return (DDI_INTR_UNCLAIMED);
    180 
    181 	if (!vector0 && !vector1) {
    182 		HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intr: "
    183 		    "no interrupts on group %d", t_ldgp->ldg));
    184 		return (DDI_INTR_UNCLAIMED);
    185 	}
    186 
    187 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intr: "
    188 	    "vector0 0x%llx vector1 0x%llx", vector0, vector1));
    189 
    190 	t_ldgp->interrupted = B_TRUE;
    191 	nldvs = t_ldgp->nldvs;
    192 
    193 	/*
    194 	 * Process all devices that share this group.
    195 	 */
    196 	for (j = 0; j < nldvs; j++, t_ldvp++) {
    197 		/*
    198 		 * Call device's handler if flag bits are on.
    199 		 */
    200 		ldv = t_ldvp->ldv;
    201 		if ((LDV_ON(ldv, vector0) | (LDV_ON(ldv, vector1)))) {
    202 			HXGE_DEBUG_MSG((hxgep, INT_CTL,
    203 			    "==> hxge_intr: calling device %d"
    204 			    " #ldvs %d #intrs %d", j, nldvs, nintrs));
    205 			(void) (t_ldvp->ldv_intr_handler)(
    206 			    (caddr_t)t_ldvp, arg2);
    207 		}
    208 	}
    209 
    210 	/*
    211 	 * Re-arm group interrupts
    212 	 */
    213 	if (t_ldgp->interrupted) {
    214 		HXGE_DEBUG_MSG((hxgep, INT_CTL,
    215 		    "==> hxge_intr: arm group %d", t_ldgp->ldg));
    216 		(void) hpi_intr_ldg_mgmt_set(handle, t_ldgp->ldg,
    217 		    t_ldgp->arm, t_ldgp->ldg_timer);
    218 	}
    219 
    220 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_intr"));
    221 	return (DDI_INTR_CLAIMED);
    222 }
    223 
    224 hxge_status_t
    225 hxge_peu_handle_sys_errors(p_hxge_t hxgep)
    226 {
    227 	hpi_handle_t		handle;
    228 	p_hxge_peu_sys_stats_t	statsp;
    229 	peu_intr_stat_t		stat;
    230 
    231 	handle = hxgep->hpi_handle;
    232 	statsp = (p_hxge_peu_sys_stats_t)&hxgep->statsp->peu_sys_stats;
    233 
    234 	HXGE_REG_RD32(handle, PEU_INTR_STAT, &stat.value);
    235 
    236 	/*
    237 	 * The PCIE errors are unrecoverrable and cannot be cleared.
    238 	 * The only thing we can do here is to mask them off to prevent
    239 	 * continued interrupts.
    240 	 */
    241 	HXGE_REG_WR32(handle, PEU_INTR_MASK, 0xffffffff);
    242 
    243 	if (stat.bits.spc_acc_err) {
    244 		statsp->spc_acc_err++;
    245 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    246 		    "==> hxge_peu_handle_sys_errors: spc_acc_err"));
    247 	}
    248 
    249 	if (stat.bits.tdc_pioacc_err) {
    250 		statsp->tdc_pioacc_err++;
    251 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    252 		    "==> hxge_peu_handle_sys_errors: tdc_pioacc_err"));
    253 	}
    254 
    255 	if (stat.bits.rdc_pioacc_err) {
    256 		statsp->rdc_pioacc_err++;
    257 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    258 		    "==> hxge_peu_handle_sys_errors: rdc_pioacc_err"));
    259 	}
    260 
    261 	if (stat.bits.pfc_pioacc_err) {
    262 		statsp->pfc_pioacc_err++;
    263 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    264 		    "==> hxge_peu_handle_sys_errors: pfc_pioacc_err"));
    265 	}
    266 
    267 	if (stat.bits.vmac_pioacc_err) {
    268 		statsp->vmac_pioacc_err++;
    269 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    270 		    "==> hxge_peu_handle_sys_errors: vmac_pioacc_err"));
    271 	}
    272 
    273 	if (stat.bits.cpl_hdrq_parerr) {
    274 		statsp->cpl_hdrq_parerr++;
    275 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    276 		    "==> hxge_peu_handle_sys_errors: cpl_hdrq_parerr"));
    277 	}
    278 
    279 	if (stat.bits.cpl_dataq_parerr) {
    280 		statsp->cpl_dataq_parerr++;
    281 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    282 		    "==> hxge_peu_handle_sys_errors: cpl_dataq_parerr"));
    283 	}
    284 
    285 	if (stat.bits.retryram_xdlh_parerr) {
    286 		statsp->retryram_xdlh_parerr++;
    287 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    288 		    "==> hxge_peu_handle_sys_errors: retryram_xdlh_parerr"));
    289 	}
    290 
    291 	if (stat.bits.retrysotram_xdlh_parerr) {
    292 		statsp->retrysotram_xdlh_parerr++;
    293 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    294 		    "==> hxge_peu_handle_sys_errors: retrysotram_xdlh_parerr"));
    295 	}
    296 
    297 	if (stat.bits.p_hdrq_parerr) {
    298 		statsp->p_hdrq_parerr++;
    299 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    300 		    "==> hxge_peu_handle_sys_errors: p_hdrq_parerr"));
    301 	}
    302 
    303 	if (stat.bits.p_dataq_parerr) {
    304 		statsp->p_dataq_parerr++;
    305 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    306 		    "==> hxge_peu_handle_sys_errors: p_dataq_parerr"));
    307 	}
    308 
    309 	if (stat.bits.np_hdrq_parerr) {
    310 		statsp->np_hdrq_parerr++;
    311 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    312 		    "==> hxge_peu_handle_sys_errors: np_hdrq_parerr"));
    313 	}
    314 
    315 	if (stat.bits.np_dataq_parerr) {
    316 		statsp->np_dataq_parerr++;
    317 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    318 		    "==> hxge_peu_handle_sys_errors: np_dataq_parerr"));
    319 	}
    320 
    321 	if (stat.bits.eic_msix_parerr) {
    322 		statsp->eic_msix_parerr++;
    323 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    324 		    "==> hxge_peu_handle_sys_errors: eic_msix_parerr"));
    325 	}
    326 
    327 	if (stat.bits.hcr_parerr) {
    328 		statsp->hcr_parerr++;
    329 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    330 		    "==> hxge_peu_handle_sys_errors: hcr_parerr"));
    331 	}
    332 
    333 	HXGE_FM_REPORT_ERROR(hxgep, NULL, HXGE_FM_EREPORT_PEU_ERR);
    334 	return (HXGE_OK);
    335 }
    336 
    337 /*ARGSUSED*/
    338 uint_t
    339 hxge_syserr_intr(caddr_t arg1, caddr_t arg2)
    340 {
    341 	p_hxge_ldv_t	ldvp = (p_hxge_ldv_t)arg1;
    342 	p_hxge_t	hxgep = (p_hxge_t)arg2;
    343 	p_hxge_ldg_t	ldgp = NULL;
    344 	hpi_handle_t	handle;
    345 	dev_err_stat_t	estat;
    346 
    347 	if ((arg1 == NULL) && (arg2 == NULL)) {
    348 		return (DDI_INTR_UNCLAIMED);
    349 	}
    350 
    351 	if ((arg2 == NULL) ||
    352 	    ((ldvp != NULL) && ((void *)ldvp->hxgep != arg2))) {
    353 		if (ldvp != NULL) {
    354 			hxgep = ldvp->hxgep;
    355 		}
    356 	}
    357 
    358 	HXGE_DEBUG_MSG((hxgep, SYSERR_CTL,
    359 	    "==> hxge_syserr_intr: arg2 $%p arg1 $%p", hxgep, ldvp));
    360 
    361 	if (ldvp != NULL && ldvp->use_timer == B_FALSE) {
    362 		ldgp = ldvp->ldgp;
    363 		if (ldgp == NULL) {
    364 			HXGE_ERROR_MSG((hxgep, SYSERR_CTL,
    365 			    "<== hxge_syserrintr(no logical group): "
    366 			    "arg2 $%p arg1 $%p", hxgep, ldvp));
    367 			return (DDI_INTR_UNCLAIMED);
    368 		}
    369 	}
    370 
    371 	/*
    372 	 * This interrupt handler is for system error interrupts.
    373 	 */
    374 	handle = HXGE_DEV_HPI_HANDLE(hxgep);
    375 	estat.value = 0;
    376 	(void) hpi_fzc_sys_err_stat_get(handle, &estat);
    377 	HXGE_DEBUG_MSG((hxgep, SYSERR_CTL,
    378 	    "==> hxge_syserr_intr: device error 0x%016llx", estat.value));
    379 
    380 	if (estat.bits.tdc_err0 || estat.bits.tdc_err1) {
    381 		/* TDMC */
    382 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    383 		    "==> hxge_syserr_intr: device error - TDMC"));
    384 		(void) hxge_txdma_handle_sys_errors(hxgep);
    385 	} else if (estat.bits.rdc_err0 || estat.bits.rdc_err1) {
    386 		/* RDMC */
    387 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    388 		    "==> hxge_syserr_intr: device error - RDMC"));
    389 		(void) hxge_rxdma_handle_sys_errors(hxgep);
    390 	} else if (estat.bits.vnm_pio_err1 || estat.bits.peu_err1) {
    391 		/* PCI-E */
    392 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    393 		    "==> hxge_syserr_intr: device error - PCI-E"));
    394 
    395 		/* kstats are updated here */
    396 		(void) hxge_peu_handle_sys_errors(hxgep);
    397 
    398 		if (estat.bits.peu_err1)
    399 			HXGE_FM_REPORT_ERROR(hxgep, NULL,
    400 			    HXGE_FM_EREPORT_PEU_ERR);
    401 
    402 		if (estat.bits.vnm_pio_err1)
    403 			HXGE_FM_REPORT_ERROR(hxgep, NULL,
    404 			    HXGE_FM_EREPORT_PEU_VNM_PIO_ERR);
    405 	} else if (estat.value != 0) {
    406 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    407 		    "==> hxge_syserr_intr: device error - unknown"));
    408 	}
    409 
    410 	if ((ldgp != NULL) && (ldvp != NULL) &&
    411 	    (ldgp->nldvs == 1) && !ldvp->use_timer) {
    412 		(void) hpi_intr_ldg_mgmt_set(handle, ldgp->ldg,
    413 		    B_TRUE, ldgp->ldg_timer);
    414 	}
    415 
    416 	HXGE_DEBUG_MSG((hxgep, SYSERR_CTL, "<== hxge_syserr_intr"));
    417 	return (DDI_INTR_CLAIMED);
    418 }
    419 
    420 void
    421 hxge_intr_hw_enable(p_hxge_t hxgep)
    422 {
    423 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intr_hw_enable"));
    424 
    425 	(void) hxge_intr_mask_mgmt_set(hxgep, B_TRUE);
    426 
    427 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_intr_hw_enable"));
    428 }
    429 
    430 void
    431 hxge_intr_hw_disable(p_hxge_t hxgep)
    432 {
    433 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_intr_hw_disable"));
    434 
    435 	(void) hxge_intr_mask_mgmt_set(hxgep, B_FALSE);
    436 
    437 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_intr_hw_disable"));
    438 }
    439 
    440 /*ARGSUSED*/
    441 void
    442 hxge_rx_hw_blank(void *arg, time_t ticks, uint_t count)
    443 {
    444 	p_hxge_t	hxgep = (p_hxge_t)arg;
    445 
    446 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "==> hxge_rx_hw_blank"));
    447 
    448 	/*
    449 	 * Replace current ticks and counts for later
    450 	 * processing by the receive packet interrupt routines.
    451 	 */
    452 	hxgep->intr_timeout = (uint16_t)ticks;
    453 
    454 	HXGE_DEBUG_MSG((hxgep, INT_CTL, "<== hxge_rx_hw_blank"));
    455 }
    456 
    457 void
    458 hxge_hw_stop(p_hxge_t hxgep)
    459 {
    460 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "==> hxge_hw_stop"));
    461 
    462 	(void) hxge_tx_vmac_disable(hxgep);
    463 	(void) hxge_rx_vmac_disable(hxgep);
    464 	(void) hxge_txdma_hw_mode(hxgep, HXGE_DMA_STOP);
    465 	(void) hxge_rxdma_hw_mode(hxgep, HXGE_DMA_STOP);
    466 
    467 	HXGE_DEBUG_MSG((hxgep, DDI_CTL, "<== hxge_hw_stop"));
    468 }
    469 
    470 void
    471 hxge_hw_ioctl(p_hxge_t hxgep, queue_t *wq, mblk_t *mp, struct iocblk *iocp)
    472 {
    473 	int cmd;
    474 
    475 	HXGE_DEBUG_MSG((hxgep, IOC_CTL, "==> hxge_hw_ioctl"));
    476 
    477 	if (hxgep == NULL) {
    478 		miocnak(wq, mp, 0, EINVAL);
    479 		return;
    480 	}
    481 
    482 	iocp->ioc_error = 0;
    483 	cmd = iocp->ioc_cmd;
    484 
    485 	switch (cmd) {
    486 	default:
    487 		miocnak(wq, mp, 0, EINVAL);
    488 		return;
    489 
    490 	case HXGE_PUT_TCAM:
    491 		hxge_put_tcam(hxgep, mp->b_cont);
    492 		miocack(wq, mp, 0, 0);
    493 		break;
    494 
    495 	case HXGE_GET_TCAM:
    496 		hxge_get_tcam(hxgep, mp->b_cont);
    497 		miocack(wq, mp, 0, 0);
    498 		break;
    499 
    500 	case HXGE_RTRACE:
    501 		hxge_rtrace_ioctl(hxgep, wq, mp, iocp);
    502 		break;
    503 	}
    504 }
    505 
    506 /*
    507  * 10G is the only loopback mode for Hydra.
    508  */
    509 void
    510 hxge_loopback_ioctl(p_hxge_t hxgep, queue_t *wq, mblk_t *mp,
    511     struct iocblk *iocp)
    512 {
    513 	p_lb_property_t lb_props;
    514 	size_t		size;
    515 	int		i;
    516 
    517 	if (mp->b_cont == NULL) {
    518 		miocnak(wq, mp, 0, EINVAL);
    519 	}
    520 
    521 	switch (iocp->ioc_cmd) {
    522 	case LB_GET_MODE:
    523 		HXGE_DEBUG_MSG((hxgep, IOC_CTL, "HXGE_GET_LB_MODE command"));
    524 		if (hxgep != NULL) {
    525 			*(lb_info_sz_t *)mp->b_cont->b_rptr =
    526 			    hxgep->statsp->port_stats.lb_mode;
    527 			miocack(wq, mp, sizeof (hxge_lb_t), 0);
    528 		} else
    529 			miocnak(wq, mp, 0, EINVAL);
    530 		break;
    531 
    532 	case LB_SET_MODE:
    533 		HXGE_DEBUG_MSG((hxgep, IOC_CTL, "HXGE_SET_LB_MODE command"));
    534 		if (iocp->ioc_count != sizeof (uint32_t)) {
    535 			miocack(wq, mp, 0, 0);
    536 			break;
    537 		}
    538 		if ((hxgep != NULL) && hxge_set_lb(hxgep, wq, mp->b_cont)) {
    539 			miocack(wq, mp, 0, 0);
    540 		} else {
    541 			miocnak(wq, mp, 0, EPROTO);
    542 		}
    543 		break;
    544 
    545 	case LB_GET_INFO_SIZE:
    546 		HXGE_DEBUG_MSG((hxgep, IOC_CTL, "LB_GET_INFO_SIZE command"));
    547 		if (hxgep != NULL) {
    548 			size = sizeof (lb_normal) + sizeof (lb_mac10g);
    549 
    550 			*(lb_info_sz_t *)mp->b_cont->b_rptr = size;
    551 
    552 			HXGE_DEBUG_MSG((hxgep, IOC_CTL,
    553 			    "HXGE_GET_LB_INFO command: size %d", size));
    554 			miocack(wq, mp, sizeof (lb_info_sz_t), 0);
    555 		} else
    556 			miocnak(wq, mp, 0, EINVAL);
    557 		break;
    558 
    559 	case LB_GET_INFO:
    560 		HXGE_DEBUG_MSG((hxgep, IOC_CTL, "HXGE_GET_LB_INFO command"));
    561 		if (hxgep != NULL) {
    562 			size = sizeof (lb_normal) + sizeof (lb_mac10g);
    563 			HXGE_DEBUG_MSG((hxgep, IOC_CTL,
    564 			    "HXGE_GET_LB_INFO command: size %d", size));
    565 			if (size == iocp->ioc_count) {
    566 				i = 0;
    567 				lb_props = (p_lb_property_t)mp->b_cont->b_rptr;
    568 				lb_props[i++] = lb_normal;
    569 				lb_props[i++] = lb_mac10g;
    570 
    571 				miocack(wq, mp, size, 0);
    572 			} else
    573 				miocnak(wq, mp, 0, EINVAL);
    574 		} else {
    575 			miocnak(wq, mp, 0, EINVAL);
    576 			cmn_err(CE_NOTE, "hxge_hw_ioctl: invalid command 0x%x",
    577 			    iocp->ioc_cmd);
    578 		}
    579 
    580 		break;
    581 	}
    582 }
    583 
    584 /*ARGSUSED*/
    585 boolean_t
    586 hxge_set_lb(p_hxge_t hxgep, queue_t *wq, p_mblk_t mp)
    587 {
    588 	boolean_t	status = B_TRUE;
    589 	uint32_t	lb_mode;
    590 	lb_property_t	*lb_info;
    591 
    592 	HXGE_DEBUG_MSG((hxgep, IOC_CTL, "<== hxge_set_lb"));
    593 	lb_mode = hxgep->statsp->port_stats.lb_mode;
    594 	if (lb_mode == *(uint32_t *)mp->b_rptr) {
    595 		cmn_err(CE_NOTE,
    596 		    "hxge%d: Loopback mode already set (lb_mode %d).\n",
    597 		    hxgep->instance, lb_mode);
    598 		status = B_FALSE;
    599 		goto hxge_set_lb_exit;
    600 	}
    601 
    602 	lb_mode = *(uint32_t *)mp->b_rptr;
    603 	lb_info = NULL;
    604 
    605 	/* 10G is the only loopback mode for Hydra */
    606 	if (lb_mode == lb_normal.value)
    607 		lb_info = &lb_normal;
    608 	else if (lb_mode == lb_mac10g.value)
    609 		lb_info = &lb_mac10g;
    610 	else {
    611 		cmn_err(CE_NOTE,
    612 		    "hxge%d: Loopback mode not supported(mode %d).\n",
    613 		    hxgep->instance, lb_mode);
    614 		status = B_FALSE;
    615 		goto hxge_set_lb_exit;
    616 	}
    617 
    618 	if (lb_mode == hxge_lb_normal) {
    619 		if (hxge_lb_dbg) {
    620 			cmn_err(CE_NOTE,
    621 			    "!hxge%d: Returning to normal operation",
    622 			    hxgep->instance);
    623 		}
    624 
    625 		hxgep->statsp->port_stats.lb_mode = hxge_lb_normal;
    626 		hxge_global_reset(hxgep);
    627 
    628 		goto hxge_set_lb_exit;
    629 	}
    630 
    631 	hxgep->statsp->port_stats.lb_mode = lb_mode;
    632 
    633 	if (hxge_lb_dbg)
    634 		cmn_err(CE_NOTE, "!hxge%d: Adapter now in %s loopback mode",
    635 		    hxgep->instance, lb_info->key);
    636 
    637 	if (lb_info->lb_type == internal) {
    638 		if ((hxgep->statsp->port_stats.lb_mode == hxge_lb_mac10g))
    639 			hxgep->statsp->mac_stats.link_speed = 10000;
    640 		else {
    641 			cmn_err(CE_NOTE,
    642 			    "hxge%d: Loopback mode not supported(mode %d).\n",
    643 			    hxgep->instance, lb_mode);
    644 			status = B_FALSE;
    645 			goto hxge_set_lb_exit;
    646 		}
    647 		hxgep->statsp->mac_stats.link_duplex = 2;
    648 		hxgep->statsp->mac_stats.link_up = 1;
    649 	}
    650 
    651 	hxge_global_reset(hxgep);
    652 
    653 hxge_set_lb_exit:
    654 	HXGE_DEBUG_MSG((hxgep, DDI_CTL,
    655 	    "<== hxge_set_lb status = 0x%08x", status));
    656 
    657 	return (status);
    658 }
    659 
    660 void
    661 hxge_check_hw_state(p_hxge_t hxgep)
    662 {
    663 	p_hxge_ldgv_t		ldgvp;
    664 	p_hxge_ldv_t		t_ldvp;
    665 
    666 	HXGE_DEBUG_MSG((hxgep, SYSERR_CTL, "==> hxge_check_hw_state"));
    667 
    668 	MUTEX_ENTER(hxgep->genlock);
    669 
    670 	hxgep->hxge_timerid = 0;
    671 	if (!(hxgep->drv_state & STATE_HW_INITIALIZED)) {
    672 		goto hxge_check_hw_state_exit;
    673 	}
    674 
    675 	hxge_check_tx_hang(hxgep);
    676 
    677 	ldgvp = hxgep->ldgvp;
    678 	if (ldgvp == NULL || (ldgvp->ldvp_syserr == NULL)) {
    679 		HXGE_ERROR_MSG((hxgep, SYSERR_CTL, "<== hxge_check_hw_state: "
    680 		    "NULL ldgvp (interrupt not ready)."));
    681 		goto hxge_check_hw_state_exit;
    682 	}
    683 
    684 	t_ldvp = ldgvp->ldvp_syserr;
    685 	if (!t_ldvp->use_timer) {
    686 		HXGE_DEBUG_MSG((hxgep, SYSERR_CTL, "<== hxge_check_hw_state: "
    687 		    "ldgvp $%p t_ldvp $%p use_timer flag %d",
    688 		    ldgvp, t_ldvp, t_ldvp->use_timer));
    689 		goto hxge_check_hw_state_exit;
    690 	}
    691 
    692 	if (fm_check_acc_handle(hxgep->dev_regs->hxge_regh) != DDI_FM_OK) {
    693 		HXGE_ERROR_MSG((hxgep, HXGE_ERR_CTL,
    694 		    "Bad register acc handle"));
    695 	}
    696 
    697 	(void) hxge_syserr_intr((caddr_t)t_ldvp, (caddr_t)hxgep);
    698 
    699 	hxgep->hxge_timerid = hxge_start_timer(hxgep, hxge_check_hw_state,
    700 	    HXGE_CHECK_TIMER);
    701 
    702 hxge_check_hw_state_exit:
    703 	MUTEX_EXIT(hxgep->genlock);
    704 
    705 	HXGE_DEBUG_MSG((hxgep, SYSERR_CTL, "<== hxge_check_hw_state"));
    706 }
    707 
    708 /*ARGSUSED*/
    709 static void
    710 hxge_rtrace_ioctl(p_hxge_t hxgep, queue_t *wq, mblk_t *mp,
    711     struct iocblk *iocp)
    712 {
    713 	ssize_t		size;
    714 	rtrace_t	*rtp;
    715 	mblk_t		*nmp;
    716 	uint32_t	i, j;
    717 	uint32_t	start_blk;
    718 	uint32_t	base_entry;
    719 	uint32_t	num_entries;
    720 
    721 	HXGE_DEBUG_MSG((hxgep, STR_CTL, "==> hxge_rtrace_ioctl"));
    722 
    723 	size = 1024;
    724 	if (mp->b_cont == NULL || MBLKL(mp->b_cont) < size) {
    725 		HXGE_DEBUG_MSG((hxgep, STR_CTL,
    726 		    "malformed M_IOCTL MBLKL = %d size = %d",
    727 		    MBLKL(mp->b_cont), size));
    728 		miocnak(wq, mp, 0, EINVAL);
    729 		return;
    730 	}
    731 
    732 	nmp = mp->b_cont;
    733 	rtp = (rtrace_t *)nmp->b_rptr;
    734 	start_blk = rtp->next_idx;
    735 	num_entries = rtp->last_idx;
    736 	base_entry = start_blk * MAX_RTRACE_IOC_ENTRIES;
    737 
    738 	HXGE_DEBUG_MSG((hxgep, STR_CTL, "start_blk = %d\n", start_blk));
    739 	HXGE_DEBUG_MSG((hxgep, STR_CTL, "num_entries = %d\n", num_entries));
    740 	HXGE_DEBUG_MSG((hxgep, STR_CTL, "base_entry = %d\n", base_entry));
    741 
    742 	rtp->next_idx = hpi_rtracebuf.next_idx;
    743 	rtp->last_idx = hpi_rtracebuf.last_idx;
    744 	rtp->wrapped = hpi_rtracebuf.wrapped;
    745 	for (i = 0, j = base_entry; i < num_entries; i++, j++) {
    746 		rtp->buf[i].ctl_addr = hpi_rtracebuf.buf[j].ctl_addr;
    747 		rtp->buf[i].val_l32 = hpi_rtracebuf.buf[j].val_l32;
    748 		rtp->buf[i].val_h32 = hpi_rtracebuf.buf[j].val_h32;
    749 	}
    750 
    751 	nmp->b_wptr = nmp->b_rptr + size;
    752 	HXGE_DEBUG_MSG((hxgep, STR_CTL, "<== hxge_rtrace_ioctl"));
    753 	miocack(wq, mp, (int)size, 0);
    754 }
    755