xref: /openbmc/linux/drivers/scsi/qla4xxx/ql4_mbx.c (revision 2612e3bbc0386368a850140a6c9b990cd496a5ec)
1  // SPDX-License-Identifier: GPL-2.0-only
2  /*
3   * QLogic iSCSI HBA Driver
4   * Copyright (c)  2003-2013 QLogic Corporation
5   */
6  
7  #include <linux/ctype.h>
8  #include "ql4_def.h"
9  #include "ql4_glbl.h"
10  #include "ql4_dbg.h"
11  #include "ql4_inline.h"
12  #include "ql4_version.h"
13  
qla4xxx_queue_mbox_cmd(struct scsi_qla_host * ha,uint32_t * mbx_cmd,int in_count)14  void qla4xxx_queue_mbox_cmd(struct scsi_qla_host *ha, uint32_t *mbx_cmd,
15  			    int in_count)
16  {
17  	int i;
18  
19  	/* Load all mailbox registers, except mailbox 0. */
20  	for (i = 1; i < in_count; i++)
21  		writel(mbx_cmd[i], &ha->reg->mailbox[i]);
22  
23  	/* Wakeup firmware  */
24  	writel(mbx_cmd[0], &ha->reg->mailbox[0]);
25  	readl(&ha->reg->mailbox[0]);
26  	writel(set_rmask(CSR_INTR_RISC), &ha->reg->ctrl_status);
27  	readl(&ha->reg->ctrl_status);
28  }
29  
qla4xxx_process_mbox_intr(struct scsi_qla_host * ha,int out_count)30  void qla4xxx_process_mbox_intr(struct scsi_qla_host *ha, int out_count)
31  {
32  	int intr_status;
33  
34  	intr_status = readl(&ha->reg->ctrl_status);
35  	if (intr_status & INTR_PENDING) {
36  		/*
37  		 * Service the interrupt.
38  		 * The ISR will save the mailbox status registers
39  		 * to a temporary storage location in the adapter structure.
40  		 */
41  		ha->mbox_status_count = out_count;
42  		ha->isp_ops->interrupt_service_routine(ha, intr_status);
43  	}
44  }
45  
46  /**
47   * qla4xxx_is_intr_poll_mode - Are we allowed to poll for interrupts?
48   * @ha: Pointer to host adapter structure.
49   * returns: 1=polling mode, 0=non-polling mode
50   **/
qla4xxx_is_intr_poll_mode(struct scsi_qla_host * ha)51  static int qla4xxx_is_intr_poll_mode(struct scsi_qla_host *ha)
52  {
53  	int rval = 1;
54  
55  	if (is_qla8032(ha) || is_qla8042(ha)) {
56  		if (test_bit(AF_IRQ_ATTACHED, &ha->flags) &&
57  		    test_bit(AF_83XX_MBOX_INTR_ON, &ha->flags))
58  			rval = 0;
59  	} else {
60  		if (test_bit(AF_IRQ_ATTACHED, &ha->flags) &&
61  		    test_bit(AF_INTERRUPTS_ON, &ha->flags) &&
62  		    test_bit(AF_ONLINE, &ha->flags) &&
63  		    !test_bit(AF_HA_REMOVAL, &ha->flags))
64  			rval = 0;
65  	}
66  
67  	return rval;
68  }
69  
70  /**
71   * qla4xxx_mailbox_command - issues mailbox commands
72   * @ha: Pointer to host adapter structure.
73   * @inCount: number of mailbox registers to load.
74   * @outCount: number of mailbox registers to return.
75   * @mbx_cmd: data pointer for mailbox in registers.
76   * @mbx_sts: data pointer for mailbox out registers.
77   *
78   * This routine issue mailbox commands and waits for completion.
79   * If outCount is 0, this routine completes successfully WITHOUT waiting
80   * for the mailbox command to complete.
81   **/
qla4xxx_mailbox_command(struct scsi_qla_host * ha,uint8_t inCount,uint8_t outCount,uint32_t * mbx_cmd,uint32_t * mbx_sts)82  int qla4xxx_mailbox_command(struct scsi_qla_host *ha, uint8_t inCount,
83  			    uint8_t outCount, uint32_t *mbx_cmd,
84  			    uint32_t *mbx_sts)
85  {
86  	int status = QLA_ERROR;
87  	uint8_t i;
88  	u_long wait_count;
89  	unsigned long flags = 0;
90  	uint32_t dev_state;
91  
92  	/* Make sure that pointers are valid */
93  	if (!mbx_cmd || !mbx_sts) {
94  		DEBUG2(printk("scsi%ld: %s: Invalid mbx_cmd or mbx_sts "
95  			      "pointer\n", ha->host_no, __func__));
96  		return status;
97  	}
98  
99  	if (is_qla40XX(ha)) {
100  		if (test_bit(AF_HA_REMOVAL, &ha->flags)) {
101  			DEBUG2(ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: "
102  					  "prematurely completing mbx cmd as "
103  					  "adapter removal detected\n",
104  					  ha->host_no, __func__));
105  			return status;
106  		}
107  	}
108  
109  	if ((is_aer_supported(ha)) &&
110  	    (test_bit(AF_PCI_CHANNEL_IO_PERM_FAILURE, &ha->flags))) {
111  		DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Perm failure on EEH, "
112  		    "timeout MBX Exiting.\n", ha->host_no, __func__));
113  		return status;
114  	}
115  
116  	/* Mailbox code active */
117  	wait_count = MBOX_TOV * 100;
118  
119  	while (wait_count--) {
120  		mutex_lock(&ha->mbox_sem);
121  		if (!test_bit(AF_MBOX_COMMAND, &ha->flags)) {
122  			set_bit(AF_MBOX_COMMAND, &ha->flags);
123  			mutex_unlock(&ha->mbox_sem);
124  			break;
125  		}
126  		mutex_unlock(&ha->mbox_sem);
127  		if (!wait_count) {
128  			DEBUG2(printk("scsi%ld: %s: mbox_sem failed\n",
129  				ha->host_no, __func__));
130  			return status;
131  		}
132  		msleep(10);
133  	}
134  
135  	if (is_qla80XX(ha)) {
136  		if (test_bit(AF_FW_RECOVERY, &ha->flags)) {
137  			DEBUG2(ql4_printk(KERN_WARNING, ha,
138  					  "scsi%ld: %s: prematurely completing mbx cmd as firmware recovery detected\n",
139  					  ha->host_no, __func__));
140  			goto mbox_exit;
141  		}
142  		/* Do not send any mbx cmd if h/w is in failed state*/
143  		ha->isp_ops->idc_lock(ha);
144  		dev_state = qla4_8xxx_rd_direct(ha, QLA8XXX_CRB_DEV_STATE);
145  		ha->isp_ops->idc_unlock(ha);
146  		if (dev_state == QLA8XXX_DEV_FAILED) {
147  			ql4_printk(KERN_WARNING, ha,
148  				   "scsi%ld: %s: H/W is in failed state, do not send any mailbox commands\n",
149  				   ha->host_no, __func__);
150  			goto mbox_exit;
151  		}
152  	}
153  
154  	spin_lock_irqsave(&ha->hardware_lock, flags);
155  
156  	ha->mbox_status_count = outCount;
157  	for (i = 0; i < outCount; i++)
158  		ha->mbox_status[i] = 0;
159  
160  	/* Queue the mailbox command to the firmware */
161  	ha->isp_ops->queue_mailbox_command(ha, mbx_cmd, inCount);
162  
163  	spin_unlock_irqrestore(&ha->hardware_lock, flags);
164  
165  	/* Wait for completion */
166  
167  	/*
168  	 * If we don't want status, don't wait for the mailbox command to
169  	 * complete.  For example, MBOX_CMD_RESET_FW doesn't return status,
170  	 * you must poll the inbound Interrupt Mask for completion.
171  	 */
172  	if (outCount == 0) {
173  		status = QLA_SUCCESS;
174  		goto mbox_exit;
175  	}
176  
177  	/*
178  	 * Wait for completion: Poll or completion queue
179  	 */
180  	if (qla4xxx_is_intr_poll_mode(ha)) {
181  		/* Poll for command to complete */
182  		wait_count = jiffies + MBOX_TOV * HZ;
183  		while (test_bit(AF_MBOX_COMMAND_DONE, &ha->flags) == 0) {
184  			if (time_after_eq(jiffies, wait_count))
185  				break;
186  			/*
187  			 * Service the interrupt.
188  			 * The ISR will save the mailbox status registers
189  			 * to a temporary storage location in the adapter
190  			 * structure.
191  			 */
192  			spin_lock_irqsave(&ha->hardware_lock, flags);
193  			ha->isp_ops->process_mailbox_interrupt(ha, outCount);
194  			spin_unlock_irqrestore(&ha->hardware_lock, flags);
195  			msleep(10);
196  		}
197  	} else {
198  		/* Do not poll for completion. Use completion queue */
199  		set_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags);
200  		wait_for_completion_timeout(&ha->mbx_intr_comp, MBOX_TOV * HZ);
201  		clear_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags);
202  	}
203  
204  	/* Check for mailbox timeout. */
205  	if (!test_bit(AF_MBOX_COMMAND_DONE, &ha->flags)) {
206  		if (is_qla80XX(ha) &&
207  		    test_bit(AF_FW_RECOVERY, &ha->flags)) {
208  			DEBUG2(ql4_printk(KERN_INFO, ha,
209  			    "scsi%ld: %s: prematurely completing mbx cmd as "
210  			    "firmware recovery detected\n",
211  			    ha->host_no, __func__));
212  			goto mbox_exit;
213  		}
214  		ql4_printk(KERN_WARNING, ha, "scsi%ld: Mailbox Cmd 0x%08X timed out, Scheduling Adapter Reset\n",
215  			   ha->host_no, mbx_cmd[0]);
216  		ha->mailbox_timeout_count++;
217  		mbx_sts[0] = (-1);
218  		set_bit(DPC_RESET_HA, &ha->dpc_flags);
219  		if (is_qla8022(ha)) {
220  			ql4_printk(KERN_INFO, ha,
221  				   "disabling pause transmit on port 0 & 1.\n");
222  			qla4_82xx_wr_32(ha, QLA82XX_CRB_NIU + 0x98,
223  					CRB_NIU_XG_PAUSE_CTL_P0 |
224  					CRB_NIU_XG_PAUSE_CTL_P1);
225  		} else if (is_qla8032(ha) || is_qla8042(ha)) {
226  			ql4_printk(KERN_INFO, ha, " %s: disabling pause transmit on port 0 & 1.\n",
227  				   __func__);
228  			qla4_83xx_disable_pause(ha);
229  		}
230  		goto mbox_exit;
231  	}
232  
233  	/*
234  	 * Copy the mailbox out registers to the caller's mailbox in/out
235  	 * structure.
236  	 */
237  	spin_lock_irqsave(&ha->hardware_lock, flags);
238  	for (i = 0; i < outCount; i++)
239  		mbx_sts[i] = ha->mbox_status[i];
240  
241  	/* Set return status and error flags (if applicable). */
242  	switch (ha->mbox_status[0]) {
243  	case MBOX_STS_COMMAND_COMPLETE:
244  		status = QLA_SUCCESS;
245  		break;
246  
247  	case MBOX_STS_INTERMEDIATE_COMPLETION:
248  		status = QLA_SUCCESS;
249  		break;
250  
251  	case MBOX_STS_BUSY:
252  		ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: Cmd = %08X, ISP BUSY\n",
253  			   ha->host_no, __func__, mbx_cmd[0]);
254  		ha->mailbox_timeout_count++;
255  		break;
256  
257  	default:
258  		ql4_printk(KERN_WARNING, ha, "scsi%ld: %s: FAILED, MBOX CMD = %08X, MBOX STS = %08X %08X %08X %08X %08X %08X %08X %08X\n",
259  			   ha->host_no, __func__, mbx_cmd[0], mbx_sts[0],
260  			   mbx_sts[1], mbx_sts[2], mbx_sts[3], mbx_sts[4],
261  			   mbx_sts[5], mbx_sts[6], mbx_sts[7]);
262  		break;
263  	}
264  	spin_unlock_irqrestore(&ha->hardware_lock, flags);
265  
266  mbox_exit:
267  	mutex_lock(&ha->mbox_sem);
268  	clear_bit(AF_MBOX_COMMAND, &ha->flags);
269  	mutex_unlock(&ha->mbox_sem);
270  	clear_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
271  
272  	return status;
273  }
274  
275  /**
276   * qla4xxx_get_minidump_template - Get the firmware template
277   * @ha: Pointer to host adapter structure.
278   * @phys_addr: dma address for template
279   *
280   * Obtain the minidump template from firmware during initialization
281   * as it may not be available when minidump is desired.
282   **/
qla4xxx_get_minidump_template(struct scsi_qla_host * ha,dma_addr_t phys_addr)283  int qla4xxx_get_minidump_template(struct scsi_qla_host *ha,
284  				  dma_addr_t phys_addr)
285  {
286  	uint32_t mbox_cmd[MBOX_REG_COUNT];
287  	uint32_t mbox_sts[MBOX_REG_COUNT];
288  	int status;
289  
290  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
291  	memset(&mbox_sts, 0, sizeof(mbox_sts));
292  
293  	mbox_cmd[0] = MBOX_CMD_MINIDUMP;
294  	mbox_cmd[1] = MINIDUMP_GET_TMPLT_SUBCOMMAND;
295  	mbox_cmd[2] = LSDW(phys_addr);
296  	mbox_cmd[3] = MSDW(phys_addr);
297  	mbox_cmd[4] = ha->fw_dump_tmplt_size;
298  	mbox_cmd[5] = 0;
299  
300  	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0],
301  					 &mbox_sts[0]);
302  	if (status != QLA_SUCCESS) {
303  		DEBUG2(ql4_printk(KERN_INFO, ha,
304  				  "scsi%ld: %s: Cmd = %08X, mbx[0] = 0x%04x, mbx[1] = 0x%04x\n",
305  				  ha->host_no, __func__, mbox_cmd[0],
306  				  mbox_sts[0], mbox_sts[1]));
307  	}
308  	return status;
309  }
310  
311  /**
312   * qla4xxx_req_template_size - Get minidump template size from firmware.
313   * @ha: Pointer to host adapter structure.
314   **/
qla4xxx_req_template_size(struct scsi_qla_host * ha)315  int qla4xxx_req_template_size(struct scsi_qla_host *ha)
316  {
317  	uint32_t mbox_cmd[MBOX_REG_COUNT];
318  	uint32_t mbox_sts[MBOX_REG_COUNT];
319  	int status;
320  
321  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
322  	memset(&mbox_sts, 0, sizeof(mbox_sts));
323  
324  	mbox_cmd[0] = MBOX_CMD_MINIDUMP;
325  	mbox_cmd[1] = MINIDUMP_GET_SIZE_SUBCOMMAND;
326  
327  	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 8, &mbox_cmd[0],
328  					 &mbox_sts[0]);
329  	if (status == QLA_SUCCESS) {
330  		ha->fw_dump_tmplt_size = mbox_sts[1];
331  		DEBUG2(ql4_printk(KERN_INFO, ha,
332  				  "%s: sts[0]=0x%04x, template  size=0x%04x, size_cm_02=0x%04x, size_cm_04=0x%04x, size_cm_08=0x%04x, size_cm_10=0x%04x, size_cm_FF=0x%04x, version=0x%04x\n",
333  				  __func__, mbox_sts[0], mbox_sts[1],
334  				  mbox_sts[2], mbox_sts[3], mbox_sts[4],
335  				  mbox_sts[5], mbox_sts[6], mbox_sts[7]));
336  		if (ha->fw_dump_tmplt_size == 0)
337  			status = QLA_ERROR;
338  	} else {
339  		ql4_printk(KERN_WARNING, ha,
340  			   "%s: Error sts[0]=0x%04x, mbx[1]=0x%04x\n",
341  			   __func__, mbox_sts[0], mbox_sts[1]);
342  		status = QLA_ERROR;
343  	}
344  
345  	return status;
346  }
347  
qla4xxx_mailbox_premature_completion(struct scsi_qla_host * ha)348  void qla4xxx_mailbox_premature_completion(struct scsi_qla_host *ha)
349  {
350  	set_bit(AF_FW_RECOVERY, &ha->flags);
351  	ql4_printk(KERN_INFO, ha, "scsi%ld: %s: set FW RECOVERY!\n",
352  	    ha->host_no, __func__);
353  
354  	if (test_bit(AF_MBOX_COMMAND, &ha->flags)) {
355  		if (test_bit(AF_MBOX_COMMAND_NOPOLL, &ha->flags)) {
356  			complete(&ha->mbx_intr_comp);
357  			ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Due to fw "
358  			    "recovery, doing premature completion of "
359  			    "mbx cmd\n", ha->host_no, __func__);
360  
361  		} else {
362  			set_bit(AF_MBOX_COMMAND_DONE, &ha->flags);
363  			ql4_printk(KERN_INFO, ha, "scsi%ld: %s: Due to fw "
364  			    "recovery, doing premature completion of "
365  			    "polling mbx cmd\n", ha->host_no, __func__);
366  		}
367  	}
368  }
369  
370  static uint8_t
qla4xxx_set_ifcb(struct scsi_qla_host * ha,uint32_t * mbox_cmd,uint32_t * mbox_sts,dma_addr_t init_fw_cb_dma)371  qla4xxx_set_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
372  		 uint32_t *mbox_sts, dma_addr_t init_fw_cb_dma)
373  {
374  	memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
375  	memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
376  
377  	if (is_qla8022(ha))
378  		qla4_82xx_wr_32(ha, ha->nx_db_wr_ptr, 0);
379  
380  	mbox_cmd[0] = MBOX_CMD_INITIALIZE_FIRMWARE;
381  	mbox_cmd[1] = 0;
382  	mbox_cmd[2] = LSDW(init_fw_cb_dma);
383  	mbox_cmd[3] = MSDW(init_fw_cb_dma);
384  	mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
385  
386  	if (qla4xxx_mailbox_command(ha, 6, 6, mbox_cmd, mbox_sts) !=
387  	    QLA_SUCCESS) {
388  		DEBUG2(printk(KERN_WARNING "scsi%ld: %s: "
389  			      "MBOX_CMD_INITIALIZE_FIRMWARE"
390  			      " failed w/ status %04X\n",
391  			      ha->host_no, __func__, mbox_sts[0]));
392  		return QLA_ERROR;
393  	}
394  	return QLA_SUCCESS;
395  }
396  
397  uint8_t
qla4xxx_get_ifcb(struct scsi_qla_host * ha,uint32_t * mbox_cmd,uint32_t * mbox_sts,dma_addr_t init_fw_cb_dma)398  qla4xxx_get_ifcb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
399  		 uint32_t *mbox_sts, dma_addr_t init_fw_cb_dma)
400  {
401  	memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
402  	memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
403  	mbox_cmd[0] = MBOX_CMD_GET_INIT_FW_CTRL_BLOCK;
404  	mbox_cmd[2] = LSDW(init_fw_cb_dma);
405  	mbox_cmd[3] = MSDW(init_fw_cb_dma);
406  	mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
407  
408  	if (qla4xxx_mailbox_command(ha, 5, 5, mbox_cmd, mbox_sts) !=
409  	    QLA_SUCCESS) {
410  		DEBUG2(printk(KERN_WARNING "scsi%ld: %s: "
411  			      "MBOX_CMD_GET_INIT_FW_CTRL_BLOCK"
412  			      " failed w/ status %04X\n",
413  			      ha->host_no, __func__, mbox_sts[0]));
414  		return QLA_ERROR;
415  	}
416  	return QLA_SUCCESS;
417  }
418  
qla4xxx_set_ipaddr_state(uint8_t fw_ipaddr_state)419  uint8_t qla4xxx_set_ipaddr_state(uint8_t fw_ipaddr_state)
420  {
421  	uint8_t ipaddr_state;
422  
423  	switch (fw_ipaddr_state) {
424  	case IP_ADDRSTATE_UNCONFIGURED:
425  		ipaddr_state = ISCSI_IPDDRESS_STATE_UNCONFIGURED;
426  		break;
427  	case IP_ADDRSTATE_INVALID:
428  		ipaddr_state = ISCSI_IPDDRESS_STATE_INVALID;
429  		break;
430  	case IP_ADDRSTATE_ACQUIRING:
431  		ipaddr_state = ISCSI_IPDDRESS_STATE_ACQUIRING;
432  		break;
433  	case IP_ADDRSTATE_TENTATIVE:
434  		ipaddr_state = ISCSI_IPDDRESS_STATE_TENTATIVE;
435  		break;
436  	case IP_ADDRSTATE_DEPRICATED:
437  		ipaddr_state = ISCSI_IPDDRESS_STATE_DEPRECATED;
438  		break;
439  	case IP_ADDRSTATE_PREFERRED:
440  		ipaddr_state = ISCSI_IPDDRESS_STATE_VALID;
441  		break;
442  	case IP_ADDRSTATE_DISABLING:
443  		ipaddr_state = ISCSI_IPDDRESS_STATE_DISABLING;
444  		break;
445  	default:
446  		ipaddr_state = ISCSI_IPDDRESS_STATE_UNCONFIGURED;
447  	}
448  	return ipaddr_state;
449  }
450  
451  static void
qla4xxx_update_local_ip(struct scsi_qla_host * ha,struct addr_ctrl_blk * init_fw_cb)452  qla4xxx_update_local_ip(struct scsi_qla_host *ha,
453  			struct addr_ctrl_blk *init_fw_cb)
454  {
455  	ha->ip_config.tcp_options = le16_to_cpu(init_fw_cb->ipv4_tcp_opts);
456  	ha->ip_config.ipv4_options = le16_to_cpu(init_fw_cb->ipv4_ip_opts);
457  	ha->ip_config.ipv4_addr_state =
458  			qla4xxx_set_ipaddr_state(init_fw_cb->ipv4_addr_state);
459  	ha->ip_config.eth_mtu_size =
460  				le16_to_cpu(init_fw_cb->eth_mtu_size);
461  	ha->ip_config.ipv4_port = le16_to_cpu(init_fw_cb->ipv4_port);
462  
463  	if (ha->acb_version == ACB_SUPPORTED) {
464  		ha->ip_config.ipv6_options = le16_to_cpu(init_fw_cb->ipv6_opts);
465  		ha->ip_config.ipv6_addl_options =
466  				le16_to_cpu(init_fw_cb->ipv6_addtl_opts);
467  		ha->ip_config.ipv6_tcp_options =
468  				le16_to_cpu(init_fw_cb->ipv6_tcp_opts);
469  	}
470  
471  	/* Save IPv4 Address Info */
472  	memcpy(ha->ip_config.ip_address, init_fw_cb->ipv4_addr,
473  	       min(sizeof(ha->ip_config.ip_address),
474  		   sizeof(init_fw_cb->ipv4_addr)));
475  	memcpy(ha->ip_config.subnet_mask, init_fw_cb->ipv4_subnet,
476  	       min(sizeof(ha->ip_config.subnet_mask),
477  		   sizeof(init_fw_cb->ipv4_subnet)));
478  	memcpy(ha->ip_config.gateway, init_fw_cb->ipv4_gw_addr,
479  	       min(sizeof(ha->ip_config.gateway),
480  		   sizeof(init_fw_cb->ipv4_gw_addr)));
481  
482  	ha->ip_config.ipv4_vlan_tag = be16_to_cpu(init_fw_cb->ipv4_vlan_tag);
483  	ha->ip_config.control = init_fw_cb->control;
484  	ha->ip_config.tcp_wsf = init_fw_cb->ipv4_tcp_wsf;
485  	ha->ip_config.ipv4_tos = init_fw_cb->ipv4_tos;
486  	ha->ip_config.ipv4_cache_id = init_fw_cb->ipv4_cacheid;
487  	ha->ip_config.ipv4_alt_cid_len = init_fw_cb->ipv4_dhcp_alt_cid_len;
488  	memcpy(ha->ip_config.ipv4_alt_cid, init_fw_cb->ipv4_dhcp_alt_cid,
489  	       min(sizeof(ha->ip_config.ipv4_alt_cid),
490  		   sizeof(init_fw_cb->ipv4_dhcp_alt_cid)));
491  	ha->ip_config.ipv4_vid_len = init_fw_cb->ipv4_dhcp_vid_len;
492  	memcpy(ha->ip_config.ipv4_vid, init_fw_cb->ipv4_dhcp_vid,
493  	       min(sizeof(ha->ip_config.ipv4_vid),
494  		   sizeof(init_fw_cb->ipv4_dhcp_vid)));
495  	ha->ip_config.ipv4_ttl = init_fw_cb->ipv4_ttl;
496  	ha->ip_config.def_timeout = le16_to_cpu(init_fw_cb->def_timeout);
497  	ha->ip_config.abort_timer = init_fw_cb->abort_timer;
498  	ha->ip_config.iscsi_options = le16_to_cpu(init_fw_cb->iscsi_opts);
499  	ha->ip_config.iscsi_max_pdu_size =
500  				le16_to_cpu(init_fw_cb->iscsi_max_pdu_size);
501  	ha->ip_config.iscsi_first_burst_len =
502  				le16_to_cpu(init_fw_cb->iscsi_fburst_len);
503  	ha->ip_config.iscsi_max_outstnd_r2t =
504  				le16_to_cpu(init_fw_cb->iscsi_max_outstnd_r2t);
505  	ha->ip_config.iscsi_max_burst_len =
506  				le16_to_cpu(init_fw_cb->iscsi_max_burst_len);
507  	memcpy(ha->ip_config.iscsi_name, init_fw_cb->iscsi_name,
508  	       min(sizeof(ha->ip_config.iscsi_name),
509  		   sizeof(init_fw_cb->iscsi_name)));
510  
511  	if (is_ipv6_enabled(ha)) {
512  		/* Save IPv6 Address */
513  		ha->ip_config.ipv6_link_local_state =
514  		  qla4xxx_set_ipaddr_state(init_fw_cb->ipv6_lnk_lcl_addr_state);
515  		ha->ip_config.ipv6_addr0_state =
516  			qla4xxx_set_ipaddr_state(init_fw_cb->ipv6_addr0_state);
517  		ha->ip_config.ipv6_addr1_state =
518  			qla4xxx_set_ipaddr_state(init_fw_cb->ipv6_addr1_state);
519  
520  		switch (le16_to_cpu(init_fw_cb->ipv6_dflt_rtr_state)) {
521  		case IPV6_RTRSTATE_UNKNOWN:
522  			ha->ip_config.ipv6_default_router_state =
523  						ISCSI_ROUTER_STATE_UNKNOWN;
524  			break;
525  		case IPV6_RTRSTATE_MANUAL:
526  			ha->ip_config.ipv6_default_router_state =
527  						ISCSI_ROUTER_STATE_MANUAL;
528  			break;
529  		case IPV6_RTRSTATE_ADVERTISED:
530  			ha->ip_config.ipv6_default_router_state =
531  						ISCSI_ROUTER_STATE_ADVERTISED;
532  			break;
533  		case IPV6_RTRSTATE_STALE:
534  			ha->ip_config.ipv6_default_router_state =
535  						ISCSI_ROUTER_STATE_STALE;
536  			break;
537  		default:
538  			ha->ip_config.ipv6_default_router_state =
539  						ISCSI_ROUTER_STATE_UNKNOWN;
540  		}
541  
542  		ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[0] = 0xFE;
543  		ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[1] = 0x80;
544  
545  		memcpy(&ha->ip_config.ipv6_link_local_addr.in6_u.u6_addr8[8],
546  		       init_fw_cb->ipv6_if_id,
547  		       min(sizeof(ha->ip_config.ipv6_link_local_addr)/2,
548  			   sizeof(init_fw_cb->ipv6_if_id)));
549  		memcpy(&ha->ip_config.ipv6_addr0, init_fw_cb->ipv6_addr0,
550  		       min(sizeof(ha->ip_config.ipv6_addr0),
551  			   sizeof(init_fw_cb->ipv6_addr0)));
552  		memcpy(&ha->ip_config.ipv6_addr1, init_fw_cb->ipv6_addr1,
553  		       min(sizeof(ha->ip_config.ipv6_addr1),
554  			   sizeof(init_fw_cb->ipv6_addr1)));
555  		memcpy(&ha->ip_config.ipv6_default_router_addr,
556  		       init_fw_cb->ipv6_dflt_rtr_addr,
557  		       min(sizeof(ha->ip_config.ipv6_default_router_addr),
558  			   sizeof(init_fw_cb->ipv6_dflt_rtr_addr)));
559  		ha->ip_config.ipv6_vlan_tag =
560  				be16_to_cpu(init_fw_cb->ipv6_vlan_tag);
561  		ha->ip_config.ipv6_port = le16_to_cpu(init_fw_cb->ipv6_port);
562  		ha->ip_config.ipv6_cache_id = init_fw_cb->ipv6_cache_id;
563  		ha->ip_config.ipv6_flow_lbl =
564  				le16_to_cpu(init_fw_cb->ipv6_flow_lbl);
565  		ha->ip_config.ipv6_traffic_class =
566  				init_fw_cb->ipv6_traffic_class;
567  		ha->ip_config.ipv6_hop_limit = init_fw_cb->ipv6_hop_limit;
568  		ha->ip_config.ipv6_nd_reach_time =
569  				le32_to_cpu(init_fw_cb->ipv6_nd_reach_time);
570  		ha->ip_config.ipv6_nd_rexmit_timer =
571  				le32_to_cpu(init_fw_cb->ipv6_nd_rexmit_timer);
572  		ha->ip_config.ipv6_nd_stale_timeout =
573  				le32_to_cpu(init_fw_cb->ipv6_nd_stale_timeout);
574  		ha->ip_config.ipv6_dup_addr_detect_count =
575  					init_fw_cb->ipv6_dup_addr_detect_count;
576  		ha->ip_config.ipv6_gw_advrt_mtu =
577  				le32_to_cpu(init_fw_cb->ipv6_gw_advrt_mtu);
578  		ha->ip_config.ipv6_tcp_wsf = init_fw_cb->ipv6_tcp_wsf;
579  	}
580  }
581  
582  uint8_t
qla4xxx_update_local_ifcb(struct scsi_qla_host * ha,uint32_t * mbox_cmd,uint32_t * mbox_sts,struct addr_ctrl_blk * init_fw_cb,dma_addr_t init_fw_cb_dma)583  qla4xxx_update_local_ifcb(struct scsi_qla_host *ha,
584  			  uint32_t *mbox_cmd,
585  			  uint32_t *mbox_sts,
586  			  struct addr_ctrl_blk  *init_fw_cb,
587  			  dma_addr_t init_fw_cb_dma)
588  {
589  	if (qla4xxx_get_ifcb(ha, mbox_cmd, mbox_sts, init_fw_cb_dma)
590  	    != QLA_SUCCESS) {
591  		DEBUG2(printk(KERN_WARNING
592  			      "scsi%ld: %s: Failed to get init_fw_ctrl_blk\n",
593  			      ha->host_no, __func__));
594  		return QLA_ERROR;
595  	}
596  
597  	DEBUG2(qla4xxx_dump_buffer(init_fw_cb, sizeof(struct addr_ctrl_blk)));
598  
599  	/* Save some info in adapter structure. */
600  	ha->acb_version = init_fw_cb->acb_version;
601  	ha->firmware_options = le16_to_cpu(init_fw_cb->fw_options);
602  	ha->heartbeat_interval = init_fw_cb->hb_interval;
603  	memcpy(ha->name_string, init_fw_cb->iscsi_name,
604  		min(sizeof(ha->name_string),
605  		sizeof(init_fw_cb->iscsi_name)));
606  	ha->def_timeout = le16_to_cpu(init_fw_cb->def_timeout);
607  	/*memcpy(ha->alias, init_fw_cb->Alias,
608  	       min(sizeof(ha->alias), sizeof(init_fw_cb->Alias)));*/
609  
610  	qla4xxx_update_local_ip(ha, init_fw_cb);
611  
612  	return QLA_SUCCESS;
613  }
614  
615  /**
616   * qla4xxx_initialize_fw_cb - initializes firmware control block.
617   * @ha: Pointer to host adapter structure.
618   **/
qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha)619  int qla4xxx_initialize_fw_cb(struct scsi_qla_host * ha)
620  {
621  	struct addr_ctrl_blk *init_fw_cb;
622  	dma_addr_t init_fw_cb_dma;
623  	uint32_t mbox_cmd[MBOX_REG_COUNT];
624  	uint32_t mbox_sts[MBOX_REG_COUNT];
625  	int status = QLA_ERROR;
626  
627  	init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
628  					sizeof(struct addr_ctrl_blk),
629  					&init_fw_cb_dma, GFP_KERNEL);
630  	if (init_fw_cb == NULL) {
631  		DEBUG2(printk("scsi%ld: %s: Unable to alloc init_cb\n",
632  			      ha->host_no, __func__));
633  		goto exit_init_fw_cb_no_free;
634  	}
635  
636  	/* Get Initialize Firmware Control Block. */
637  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
638  	memset(&mbox_sts, 0, sizeof(mbox_sts));
639  
640  	if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) !=
641  	    QLA_SUCCESS) {
642  		goto exit_init_fw_cb;
643  	}
644  
645  	/* Fill in the request and response queue information. */
646  	init_fw_cb->rqq_consumer_idx = cpu_to_le16(ha->request_out);
647  	init_fw_cb->compq_producer_idx = cpu_to_le16(ha->response_in);
648  	init_fw_cb->rqq_len = cpu_to_le16(REQUEST_QUEUE_DEPTH);
649  	init_fw_cb->compq_len = cpu_to_le16(RESPONSE_QUEUE_DEPTH);
650  	init_fw_cb->rqq_addr_lo = cpu_to_le32(LSDW(ha->request_dma));
651  	init_fw_cb->rqq_addr_hi = cpu_to_le32(MSDW(ha->request_dma));
652  	init_fw_cb->compq_addr_lo = cpu_to_le32(LSDW(ha->response_dma));
653  	init_fw_cb->compq_addr_hi = cpu_to_le32(MSDW(ha->response_dma));
654  	init_fw_cb->shdwreg_addr_lo = cpu_to_le32(LSDW(ha->shadow_regs_dma));
655  	init_fw_cb->shdwreg_addr_hi = cpu_to_le32(MSDW(ha->shadow_regs_dma));
656  
657  	/* Set up required options. */
658  	init_fw_cb->fw_options |=
659  		cpu_to_le16(FWOPT_SESSION_MODE |
660  			    FWOPT_INITIATOR_MODE);
661  
662  	if (is_qla80XX(ha))
663  		init_fw_cb->fw_options |=
664  		    cpu_to_le16(FWOPT_ENABLE_CRBDB);
665  
666  	init_fw_cb->fw_options &= cpu_to_le16(~FWOPT_TARGET_MODE);
667  
668  	init_fw_cb->add_fw_options = 0;
669  	init_fw_cb->add_fw_options |=
670  			cpu_to_le16(ADFWOPT_SERIALIZE_TASK_MGMT);
671  	init_fw_cb->add_fw_options |=
672  			cpu_to_le16(ADFWOPT_AUTOCONN_DISABLE);
673  
674  	if (qla4xxx_set_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma)
675  		!= QLA_SUCCESS) {
676  		DEBUG2(printk(KERN_WARNING
677  			      "scsi%ld: %s: Failed to set init_fw_ctrl_blk\n",
678  			      ha->host_no, __func__));
679  		goto exit_init_fw_cb;
680  	}
681  
682  	if (qla4xxx_update_local_ifcb(ha, &mbox_cmd[0], &mbox_sts[0],
683  		init_fw_cb, init_fw_cb_dma) != QLA_SUCCESS) {
684  		DEBUG2(printk("scsi%ld: %s: Failed to update local ifcb\n",
685  				ha->host_no, __func__));
686  		goto exit_init_fw_cb;
687  	}
688  	status = QLA_SUCCESS;
689  
690  exit_init_fw_cb:
691  	dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
692  				init_fw_cb, init_fw_cb_dma);
693  exit_init_fw_cb_no_free:
694  	return status;
695  }
696  
697  /**
698   * qla4xxx_get_dhcp_ip_address - gets HBA ip address via DHCP
699   * @ha: Pointer to host adapter structure.
700   **/
qla4xxx_get_dhcp_ip_address(struct scsi_qla_host * ha)701  int qla4xxx_get_dhcp_ip_address(struct scsi_qla_host * ha)
702  {
703  	struct addr_ctrl_blk *init_fw_cb;
704  	dma_addr_t init_fw_cb_dma;
705  	uint32_t mbox_cmd[MBOX_REG_COUNT];
706  	uint32_t mbox_sts[MBOX_REG_COUNT];
707  
708  	init_fw_cb = dma_alloc_coherent(&ha->pdev->dev,
709  					sizeof(struct addr_ctrl_blk),
710  					&init_fw_cb_dma, GFP_KERNEL);
711  	if (init_fw_cb == NULL) {
712  		printk("scsi%ld: %s: Unable to alloc init_cb\n", ha->host_no,
713  		       __func__);
714  		return QLA_ERROR;
715  	}
716  
717  	/* Get Initialize Firmware Control Block. */
718  	if (qla4xxx_get_ifcb(ha, &mbox_cmd[0], &mbox_sts[0], init_fw_cb_dma) !=
719  	    QLA_SUCCESS) {
720  		DEBUG2(printk("scsi%ld: %s: Failed to get init_fw_ctrl_blk\n",
721  			      ha->host_no, __func__));
722  		dma_free_coherent(&ha->pdev->dev,
723  				  sizeof(struct addr_ctrl_blk),
724  				  init_fw_cb, init_fw_cb_dma);
725  		return QLA_ERROR;
726  	}
727  
728  	/* Save IP Address. */
729  	qla4xxx_update_local_ip(ha, init_fw_cb);
730  	dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk),
731  				init_fw_cb, init_fw_cb_dma);
732  
733  	return QLA_SUCCESS;
734  }
735  
736  /**
737   * qla4xxx_get_firmware_state - gets firmware state of HBA
738   * @ha: Pointer to host adapter structure.
739   **/
qla4xxx_get_firmware_state(struct scsi_qla_host * ha)740  int qla4xxx_get_firmware_state(struct scsi_qla_host * ha)
741  {
742  	uint32_t mbox_cmd[MBOX_REG_COUNT];
743  	uint32_t mbox_sts[MBOX_REG_COUNT];
744  
745  	/* Get firmware version */
746  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
747  	memset(&mbox_sts, 0, sizeof(mbox_sts));
748  
749  	mbox_cmd[0] = MBOX_CMD_GET_FW_STATE;
750  
751  	if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 4, &mbox_cmd[0], &mbox_sts[0]) !=
752  	    QLA_SUCCESS) {
753  		DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATE failed w/ "
754  			      "status %04X\n", ha->host_no, __func__,
755  			      mbox_sts[0]));
756  		return QLA_ERROR;
757  	}
758  	ha->firmware_state = mbox_sts[1];
759  	ha->board_id = mbox_sts[2];
760  	ha->addl_fw_state = mbox_sts[3];
761  	DEBUG2(printk("scsi%ld: %s firmware_state=0x%x\n",
762  		      ha->host_no, __func__, ha->firmware_state);)
763  
764  	return QLA_SUCCESS;
765  }
766  
767  /**
768   * qla4xxx_get_firmware_status - retrieves firmware status
769   * @ha: Pointer to host adapter structure.
770   **/
qla4xxx_get_firmware_status(struct scsi_qla_host * ha)771  int qla4xxx_get_firmware_status(struct scsi_qla_host * ha)
772  {
773  	uint32_t mbox_cmd[MBOX_REG_COUNT];
774  	uint32_t mbox_sts[MBOX_REG_COUNT];
775  
776  	/* Get firmware version */
777  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
778  	memset(&mbox_sts, 0, sizeof(mbox_sts));
779  
780  	mbox_cmd[0] = MBOX_CMD_GET_FW_STATUS;
781  
782  	if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0], &mbox_sts[0]) !=
783  	    QLA_SUCCESS) {
784  		DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_FW_STATUS failed w/ "
785  			      "status %04X\n", ha->host_no, __func__,
786  			      mbox_sts[0]));
787  		return QLA_ERROR;
788  	}
789  
790  	/* High-water mark of IOCBs */
791  	ha->iocb_hiwat = mbox_sts[2];
792  	DEBUG2(ql4_printk(KERN_INFO, ha,
793  			  "%s: firmware IOCBs available = %d\n", __func__,
794  			  ha->iocb_hiwat));
795  
796  	if (ha->iocb_hiwat > IOCB_HIWAT_CUSHION)
797  		ha->iocb_hiwat -= IOCB_HIWAT_CUSHION;
798  
799  	/* Ideally, we should not enter this code, as the # of firmware
800  	 * IOCBs is hard-coded in the firmware. We set a default
801  	 * iocb_hiwat here just in case */
802  	if (ha->iocb_hiwat == 0) {
803  		ha->iocb_hiwat = REQUEST_QUEUE_DEPTH / 4;
804  		DEBUG2(ql4_printk(KERN_WARNING, ha,
805  				  "%s: Setting IOCB's to = %d\n", __func__,
806  				  ha->iocb_hiwat));
807  	}
808  
809  	return QLA_SUCCESS;
810  }
811  
812  /*
813   * qla4xxx_get_fwddb_entry - retrieves firmware ddb entry
814   * @ha: Pointer to host adapter structure.
815   * @fw_ddb_index: Firmware's device database index
816   * @fw_ddb_entry: Pointer to firmware's device database entry structure
817   * @num_valid_ddb_entries: Pointer to number of valid ddb entries
818   * @next_ddb_index: Pointer to next valid device database index
819   * @fw_ddb_device_state: Pointer to device state
820   **/
qla4xxx_get_fwddb_entry(struct scsi_qla_host * ha,uint16_t fw_ddb_index,struct dev_db_entry * fw_ddb_entry,dma_addr_t fw_ddb_entry_dma,uint32_t * num_valid_ddb_entries,uint32_t * next_ddb_index,uint32_t * fw_ddb_device_state,uint32_t * conn_err_detail,uint16_t * tcp_source_port_num,uint16_t * connection_id)821  int qla4xxx_get_fwddb_entry(struct scsi_qla_host *ha,
822  			    uint16_t fw_ddb_index,
823  			    struct dev_db_entry *fw_ddb_entry,
824  			    dma_addr_t fw_ddb_entry_dma,
825  			    uint32_t *num_valid_ddb_entries,
826  			    uint32_t *next_ddb_index,
827  			    uint32_t *fw_ddb_device_state,
828  			    uint32_t *conn_err_detail,
829  			    uint16_t *tcp_source_port_num,
830  			    uint16_t *connection_id)
831  {
832  	int status = QLA_ERROR;
833  	uint16_t options;
834  	uint32_t mbox_cmd[MBOX_REG_COUNT];
835  	uint32_t mbox_sts[MBOX_REG_COUNT];
836  
837  	/* Make sure the device index is valid */
838  	if (fw_ddb_index >= MAX_DDB_ENTRIES) {
839  		DEBUG2(printk("scsi%ld: %s: ddb [%d] out of range.\n",
840  			      ha->host_no, __func__, fw_ddb_index));
841  		goto exit_get_fwddb;
842  	}
843  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
844  	memset(&mbox_sts, 0, sizeof(mbox_sts));
845  	if (fw_ddb_entry)
846  		memset(fw_ddb_entry, 0, sizeof(struct dev_db_entry));
847  
848  	mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY;
849  	mbox_cmd[1] = (uint32_t) fw_ddb_index;
850  	mbox_cmd[2] = LSDW(fw_ddb_entry_dma);
851  	mbox_cmd[3] = MSDW(fw_ddb_entry_dma);
852  	mbox_cmd[4] = sizeof(struct dev_db_entry);
853  
854  	if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 7, &mbox_cmd[0], &mbox_sts[0]) ==
855  	    QLA_ERROR) {
856  		DEBUG2(printk("scsi%ld: %s: MBOX_CMD_GET_DATABASE_ENTRY failed"
857  			      " with status 0x%04X\n", ha->host_no, __func__,
858  			      mbox_sts[0]));
859  		goto exit_get_fwddb;
860  	}
861  	if (fw_ddb_index != mbox_sts[1]) {
862  		DEBUG2(printk("scsi%ld: %s: ddb mismatch [%d] != [%d].\n",
863  			      ha->host_no, __func__, fw_ddb_index,
864  			      mbox_sts[1]));
865  		goto exit_get_fwddb;
866  	}
867  	if (fw_ddb_entry) {
868  		options = le16_to_cpu(fw_ddb_entry->options);
869  		if (options & DDB_OPT_IPV6_DEVICE) {
870  			ql4_printk(KERN_INFO, ha, "%s: DDB[%d] MB0 %04x Tot %d "
871  				"Next %d State %04x ConnErr %08x %pI6 "
872  				":%04d \"%s\"\n", __func__, fw_ddb_index,
873  				mbox_sts[0], mbox_sts[2], mbox_sts[3],
874  				mbox_sts[4], mbox_sts[5],
875  				fw_ddb_entry->ip_addr,
876  				le16_to_cpu(fw_ddb_entry->port),
877  				fw_ddb_entry->iscsi_name);
878  		} else {
879  			ql4_printk(KERN_INFO, ha, "%s: DDB[%d] MB0 %04x Tot %d "
880  				"Next %d State %04x ConnErr %08x %pI4 "
881  				":%04d \"%s\"\n", __func__, fw_ddb_index,
882  				mbox_sts[0], mbox_sts[2], mbox_sts[3],
883  				mbox_sts[4], mbox_sts[5],
884  				fw_ddb_entry->ip_addr,
885  				le16_to_cpu(fw_ddb_entry->port),
886  				fw_ddb_entry->iscsi_name);
887  		}
888  	}
889  	if (num_valid_ddb_entries)
890  		*num_valid_ddb_entries = mbox_sts[2];
891  	if (next_ddb_index)
892  		*next_ddb_index = mbox_sts[3];
893  	if (fw_ddb_device_state)
894  		*fw_ddb_device_state = mbox_sts[4];
895  
896  	/*
897  	 * RA: This mailbox has been changed to pass connection error and
898  	 * details.  Its true for ISP4010 as per Version E - Not sure when it
899  	 * was changed.	 Get the time2wait from the fw_dd_entry field :
900  	 * default_time2wait which we call it as minTime2Wait DEV_DB_ENTRY
901  	 * struct.
902  	 */
903  	if (conn_err_detail)
904  		*conn_err_detail = mbox_sts[5];
905  	if (tcp_source_port_num)
906  		*tcp_source_port_num = (uint16_t) (mbox_sts[6] >> 16);
907  	if (connection_id)
908  		*connection_id = (uint16_t) mbox_sts[6] & 0x00FF;
909  	status = QLA_SUCCESS;
910  
911  exit_get_fwddb:
912  	return status;
913  }
914  
qla4xxx_conn_open(struct scsi_qla_host * ha,uint16_t fw_ddb_index)915  int qla4xxx_conn_open(struct scsi_qla_host *ha, uint16_t fw_ddb_index)
916  {
917  	uint32_t mbox_cmd[MBOX_REG_COUNT];
918  	uint32_t mbox_sts[MBOX_REG_COUNT];
919  	int status;
920  
921  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
922  	memset(&mbox_sts, 0, sizeof(mbox_sts));
923  
924  	mbox_cmd[0] = MBOX_CMD_CONN_OPEN;
925  	mbox_cmd[1] = fw_ddb_index;
926  
927  	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0],
928  					 &mbox_sts[0]);
929  	DEBUG2(ql4_printk(KERN_INFO, ha,
930  			  "%s: status = %d mbx0 = 0x%x mbx1 = 0x%x\n",
931  			  __func__, status, mbox_sts[0], mbox_sts[1]));
932  	return status;
933  }
934  
935  /**
936   * qla4xxx_set_ddb_entry - sets a ddb entry.
937   * @ha: Pointer to host adapter structure.
938   * @fw_ddb_index: Firmware's device database index
939   * @fw_ddb_entry_dma: dma address of ddb entry
940   * @mbx_sts: mailbox 0 to be returned or NULL
941   *
942   * This routine initializes or updates the adapter's device database
943   * entry for the specified device.
944   **/
qla4xxx_set_ddb_entry(struct scsi_qla_host * ha,uint16_t fw_ddb_index,dma_addr_t fw_ddb_entry_dma,uint32_t * mbx_sts)945  int qla4xxx_set_ddb_entry(struct scsi_qla_host * ha, uint16_t fw_ddb_index,
946  			  dma_addr_t fw_ddb_entry_dma, uint32_t *mbx_sts)
947  {
948  	uint32_t mbox_cmd[MBOX_REG_COUNT];
949  	uint32_t mbox_sts[MBOX_REG_COUNT];
950  	int status;
951  
952  	/* Do not wait for completion. The firmware will send us an
953  	 * ASTS_DATABASE_CHANGED (0x8014) to notify us of the login status.
954  	 */
955  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
956  	memset(&mbox_sts, 0, sizeof(mbox_sts));
957  
958  	mbox_cmd[0] = MBOX_CMD_SET_DATABASE_ENTRY;
959  	mbox_cmd[1] = (uint32_t) fw_ddb_index;
960  	mbox_cmd[2] = LSDW(fw_ddb_entry_dma);
961  	mbox_cmd[3] = MSDW(fw_ddb_entry_dma);
962  	mbox_cmd[4] = sizeof(struct dev_db_entry);
963  
964  	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0],
965  					 &mbox_sts[0]);
966  	if (mbx_sts)
967  		*mbx_sts = mbox_sts[0];
968  	DEBUG2(printk("scsi%ld: %s: status=%d mbx0=0x%x mbx4=0x%x\n",
969  	    ha->host_no, __func__, status, mbox_sts[0], mbox_sts[4]);)
970  
971  	return status;
972  }
973  
qla4xxx_session_logout_ddb(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry,int options)974  int qla4xxx_session_logout_ddb(struct scsi_qla_host *ha,
975  			       struct ddb_entry *ddb_entry, int options)
976  {
977  	int status;
978  	uint32_t mbox_cmd[MBOX_REG_COUNT];
979  	uint32_t mbox_sts[MBOX_REG_COUNT];
980  
981  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
982  	memset(&mbox_sts, 0, sizeof(mbox_sts));
983  
984  	mbox_cmd[0] = MBOX_CMD_CONN_CLOSE_SESS_LOGOUT;
985  	mbox_cmd[1] = ddb_entry->fw_ddb_index;
986  	mbox_cmd[3] = options;
987  
988  	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0],
989  					 &mbox_sts[0]);
990  	if (status != QLA_SUCCESS) {
991  		DEBUG2(ql4_printk(KERN_INFO, ha,
992  				  "%s: MBOX_CMD_CONN_CLOSE_SESS_LOGOUT "
993  				  "failed sts %04X %04X", __func__,
994  				  mbox_sts[0], mbox_sts[1]));
995  		if ((mbox_sts[0] == MBOX_STS_COMMAND_ERROR) &&
996  		    (mbox_sts[1] == DDB_NOT_LOGGED_IN)) {
997  			set_bit(DDB_CONN_CLOSE_FAILURE, &ddb_entry->flags);
998  		}
999  	}
1000  
1001  	return status;
1002  }
1003  
1004  /**
1005   * qla4xxx_get_crash_record - retrieves crash record.
1006   * @ha: Pointer to host adapter structure.
1007   *
1008   * This routine retrieves a crash record from the QLA4010 after an 8002h aen.
1009   **/
qla4xxx_get_crash_record(struct scsi_qla_host * ha)1010  void qla4xxx_get_crash_record(struct scsi_qla_host * ha)
1011  {
1012  	uint32_t mbox_cmd[MBOX_REG_COUNT];
1013  	uint32_t mbox_sts[MBOX_REG_COUNT];
1014  	struct crash_record *crash_record = NULL;
1015  	dma_addr_t crash_record_dma = 0;
1016  	uint32_t crash_record_size = 0;
1017  
1018  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1019  	memset(&mbox_sts, 0, sizeof(mbox_cmd));
1020  
1021  	/* Get size of crash record. */
1022  	mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD;
1023  
1024  	if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
1025  	    QLA_SUCCESS) {
1026  		DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve size!\n",
1027  			      ha->host_no, __func__));
1028  		goto exit_get_crash_record;
1029  	}
1030  	crash_record_size = mbox_sts[4];
1031  	if (crash_record_size == 0) {
1032  		DEBUG2(printk("scsi%ld: %s: ERROR: Crash record size is 0!\n",
1033  			      ha->host_no, __func__));
1034  		goto exit_get_crash_record;
1035  	}
1036  
1037  	/* Alloc Memory for Crash Record. */
1038  	crash_record = dma_alloc_coherent(&ha->pdev->dev, crash_record_size,
1039  					  &crash_record_dma, GFP_KERNEL);
1040  	if (crash_record == NULL)
1041  		goto exit_get_crash_record;
1042  
1043  	/* Get Crash Record. */
1044  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1045  	memset(&mbox_sts, 0, sizeof(mbox_cmd));
1046  
1047  	mbox_cmd[0] = MBOX_CMD_GET_CRASH_RECORD;
1048  	mbox_cmd[2] = LSDW(crash_record_dma);
1049  	mbox_cmd[3] = MSDW(crash_record_dma);
1050  	mbox_cmd[4] = crash_record_size;
1051  
1052  	if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
1053  	    QLA_SUCCESS)
1054  		goto exit_get_crash_record;
1055  
1056  	/* Dump Crash Record. */
1057  
1058  exit_get_crash_record:
1059  	if (crash_record)
1060  		dma_free_coherent(&ha->pdev->dev, crash_record_size,
1061  				  crash_record, crash_record_dma);
1062  }
1063  
1064  /**
1065   * qla4xxx_get_conn_event_log - retrieves connection event log
1066   * @ha: Pointer to host adapter structure.
1067   **/
qla4xxx_get_conn_event_log(struct scsi_qla_host * ha)1068  void qla4xxx_get_conn_event_log(struct scsi_qla_host * ha)
1069  {
1070  	uint32_t mbox_cmd[MBOX_REG_COUNT];
1071  	uint32_t mbox_sts[MBOX_REG_COUNT];
1072  	struct conn_event_log_entry *event_log = NULL;
1073  	dma_addr_t event_log_dma = 0;
1074  	uint32_t event_log_size = 0;
1075  	uint32_t num_valid_entries;
1076  	uint32_t      oldest_entry = 0;
1077  	uint32_t	max_event_log_entries;
1078  	uint8_t		i;
1079  
1080  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1081  	memset(&mbox_sts, 0, sizeof(mbox_cmd));
1082  
1083  	/* Get size of crash record. */
1084  	mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG;
1085  
1086  	if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
1087  	    QLA_SUCCESS)
1088  		goto exit_get_event_log;
1089  
1090  	event_log_size = mbox_sts[4];
1091  	if (event_log_size == 0)
1092  		goto exit_get_event_log;
1093  
1094  	/* Alloc Memory for Crash Record. */
1095  	event_log = dma_alloc_coherent(&ha->pdev->dev, event_log_size,
1096  				       &event_log_dma, GFP_KERNEL);
1097  	if (event_log == NULL)
1098  		goto exit_get_event_log;
1099  
1100  	/* Get Crash Record. */
1101  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1102  	memset(&mbox_sts, 0, sizeof(mbox_cmd));
1103  
1104  	mbox_cmd[0] = MBOX_CMD_GET_CONN_EVENT_LOG;
1105  	mbox_cmd[2] = LSDW(event_log_dma);
1106  	mbox_cmd[3] = MSDW(event_log_dma);
1107  
1108  	if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0], &mbox_sts[0]) !=
1109  	    QLA_SUCCESS) {
1110  		DEBUG2(printk("scsi%ld: %s: ERROR: Unable to retrieve event "
1111  			      "log!\n", ha->host_no, __func__));
1112  		goto exit_get_event_log;
1113  	}
1114  
1115  	/* Dump Event Log. */
1116  	num_valid_entries = mbox_sts[1];
1117  
1118  	max_event_log_entries = event_log_size /
1119  		sizeof(struct conn_event_log_entry);
1120  
1121  	if (num_valid_entries > max_event_log_entries)
1122  		oldest_entry = num_valid_entries % max_event_log_entries;
1123  
1124  	DEBUG3(printk("scsi%ld: Connection Event Log Dump (%d entries):\n",
1125  		      ha->host_no, num_valid_entries));
1126  
1127  	if (ql4xextended_error_logging == 3) {
1128  		if (oldest_entry == 0) {
1129  			/* Circular Buffer has not wrapped around */
1130  			for (i=0; i < num_valid_entries; i++) {
1131  				qla4xxx_dump_buffer((uint8_t *)event_log+
1132  						    (i*sizeof(*event_log)),
1133  						    sizeof(*event_log));
1134  			}
1135  		}
1136  		else {
1137  			/* Circular Buffer has wrapped around -
1138  			 * display accordingly*/
1139  			for (i=oldest_entry; i < max_event_log_entries; i++) {
1140  				qla4xxx_dump_buffer((uint8_t *)event_log+
1141  						    (i*sizeof(*event_log)),
1142  						    sizeof(*event_log));
1143  			}
1144  			for (i=0; i < oldest_entry; i++) {
1145  				qla4xxx_dump_buffer((uint8_t *)event_log+
1146  						    (i*sizeof(*event_log)),
1147  						    sizeof(*event_log));
1148  			}
1149  		}
1150  	}
1151  
1152  exit_get_event_log:
1153  	if (event_log)
1154  		dma_free_coherent(&ha->pdev->dev, event_log_size, event_log,
1155  				  event_log_dma);
1156  }
1157  
1158  /**
1159   * qla4xxx_abort_task - issues Abort Task
1160   * @ha: Pointer to host adapter structure.
1161   * @srb: Pointer to srb entry
1162   *
1163   * This routine performs a LUN RESET on the specified target/lun.
1164   * The caller must ensure that the ddb_entry and lun_entry pointers
1165   * are valid before calling this routine.
1166   **/
qla4xxx_abort_task(struct scsi_qla_host * ha,struct srb * srb)1167  int qla4xxx_abort_task(struct scsi_qla_host *ha, struct srb *srb)
1168  {
1169  	uint32_t mbox_cmd[MBOX_REG_COUNT];
1170  	uint32_t mbox_sts[MBOX_REG_COUNT];
1171  	struct scsi_cmnd *cmd = srb->cmd;
1172  	int status = QLA_SUCCESS;
1173  	unsigned long flags = 0;
1174  	uint32_t index;
1175  
1176  	/*
1177  	 * Send abort task command to ISP, so that the ISP will return
1178  	 * request with ABORT status
1179  	 */
1180  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1181  	memset(&mbox_sts, 0, sizeof(mbox_sts));
1182  
1183  	spin_lock_irqsave(&ha->hardware_lock, flags);
1184  	index = (unsigned long)(unsigned char *)cmd->host_scribble;
1185  	spin_unlock_irqrestore(&ha->hardware_lock, flags);
1186  
1187  	/* Firmware already posted completion on response queue */
1188  	if (index == MAX_SRBS)
1189  		return status;
1190  
1191  	mbox_cmd[0] = MBOX_CMD_ABORT_TASK;
1192  	mbox_cmd[1] = srb->ddb->fw_ddb_index;
1193  	mbox_cmd[2] = index;
1194  	/* Immediate Command Enable */
1195  	mbox_cmd[5] = 0x01;
1196  
1197  	qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 5, &mbox_cmd[0],
1198  	    &mbox_sts[0]);
1199  	if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE) {
1200  		status = QLA_ERROR;
1201  
1202  		DEBUG2(printk(KERN_WARNING "scsi%ld:%d:%llu: abort task FAILED: "
1203  		    "mbx0=%04X, mb1=%04X, mb2=%04X, mb3=%04X, mb4=%04X\n",
1204  		    ha->host_no, cmd->device->id, cmd->device->lun, mbox_sts[0],
1205  		    mbox_sts[1], mbox_sts[2], mbox_sts[3], mbox_sts[4]));
1206  	}
1207  
1208  	return status;
1209  }
1210  
1211  /**
1212   * qla4xxx_reset_lun - issues LUN Reset
1213   * @ha: Pointer to host adapter structure.
1214   * @ddb_entry: Pointer to device database entry
1215   * @lun: lun number
1216   *
1217   * This routine performs a LUN RESET on the specified target/lun.
1218   * The caller must ensure that the ddb_entry and lun_entry pointers
1219   * are valid before calling this routine.
1220   **/
qla4xxx_reset_lun(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry,uint64_t lun)1221  int qla4xxx_reset_lun(struct scsi_qla_host * ha, struct ddb_entry * ddb_entry,
1222  		      uint64_t lun)
1223  {
1224  	uint32_t mbox_cmd[MBOX_REG_COUNT];
1225  	uint32_t mbox_sts[MBOX_REG_COUNT];
1226  	uint32_t scsi_lun[2];
1227  	int status = QLA_SUCCESS;
1228  
1229  	DEBUG2(printk("scsi%ld:%d:%llu: lun reset issued\n", ha->host_no,
1230  		      ddb_entry->fw_ddb_index, lun));
1231  
1232  	/*
1233  	 * Send lun reset command to ISP, so that the ISP will return all
1234  	 * outstanding requests with RESET status
1235  	 */
1236  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1237  	memset(&mbox_sts, 0, sizeof(mbox_sts));
1238  	int_to_scsilun(lun, (struct scsi_lun *) scsi_lun);
1239  
1240  	mbox_cmd[0] = MBOX_CMD_LUN_RESET;
1241  	mbox_cmd[1] = ddb_entry->fw_ddb_index;
1242  	/* FW expects LUN bytes 0-3 in Incoming Mailbox 2
1243  	 * (LUN byte 0 is LSByte, byte 3 is MSByte) */
1244  	mbox_cmd[2] = cpu_to_le32(scsi_lun[0]);
1245  	/* FW expects LUN bytes 4-7 in Incoming Mailbox 3
1246  	 * (LUN byte 4 is LSByte, byte 7 is MSByte) */
1247  	mbox_cmd[3] = cpu_to_le32(scsi_lun[1]);
1248  	mbox_cmd[5] = 0x01;	/* Immediate Command Enable */
1249  
1250  	qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]);
1251  	if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE &&
1252  	    mbox_sts[0] != MBOX_STS_COMMAND_ERROR)
1253  		status = QLA_ERROR;
1254  
1255  	return status;
1256  }
1257  
1258  /**
1259   * qla4xxx_reset_target - issues target Reset
1260   * @ha: Pointer to host adapter structure.
1261   * @ddb_entry: Pointer to device database entry
1262   *
1263   * This routine performs a TARGET RESET on the specified target.
1264   * The caller must ensure that the ddb_entry pointers
1265   * are valid before calling this routine.
1266   **/
qla4xxx_reset_target(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry)1267  int qla4xxx_reset_target(struct scsi_qla_host *ha,
1268  			 struct ddb_entry *ddb_entry)
1269  {
1270  	uint32_t mbox_cmd[MBOX_REG_COUNT];
1271  	uint32_t mbox_sts[MBOX_REG_COUNT];
1272  	int status = QLA_SUCCESS;
1273  
1274  	DEBUG2(printk("scsi%ld:%d: target reset issued\n", ha->host_no,
1275  		      ddb_entry->fw_ddb_index));
1276  
1277  	/*
1278  	 * Send target reset command to ISP, so that the ISP will return all
1279  	 * outstanding requests with RESET status
1280  	 */
1281  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1282  	memset(&mbox_sts, 0, sizeof(mbox_sts));
1283  
1284  	mbox_cmd[0] = MBOX_CMD_TARGET_WARM_RESET;
1285  	mbox_cmd[1] = ddb_entry->fw_ddb_index;
1286  	mbox_cmd[5] = 0x01;	/* Immediate Command Enable */
1287  
1288  	qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1289  				&mbox_sts[0]);
1290  	if (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE &&
1291  	    mbox_sts[0] != MBOX_STS_COMMAND_ERROR)
1292  		status = QLA_ERROR;
1293  
1294  	return status;
1295  }
1296  
qla4xxx_get_flash(struct scsi_qla_host * ha,dma_addr_t dma_addr,uint32_t offset,uint32_t len)1297  int qla4xxx_get_flash(struct scsi_qla_host * ha, dma_addr_t dma_addr,
1298  		      uint32_t offset, uint32_t len)
1299  {
1300  	uint32_t mbox_cmd[MBOX_REG_COUNT];
1301  	uint32_t mbox_sts[MBOX_REG_COUNT];
1302  
1303  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1304  	memset(&mbox_sts, 0, sizeof(mbox_sts));
1305  
1306  	mbox_cmd[0] = MBOX_CMD_READ_FLASH;
1307  	mbox_cmd[1] = LSDW(dma_addr);
1308  	mbox_cmd[2] = MSDW(dma_addr);
1309  	mbox_cmd[3] = offset;
1310  	mbox_cmd[4] = len;
1311  
1312  	if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, &mbox_cmd[0], &mbox_sts[0]) !=
1313  	    QLA_SUCCESS) {
1314  		DEBUG2(printk("scsi%ld: %s: MBOX_CMD_READ_FLASH, failed w/ "
1315  		    "status %04X %04X, offset %08x, len %08x\n", ha->host_no,
1316  		    __func__, mbox_sts[0], mbox_sts[1], offset, len));
1317  		return QLA_ERROR;
1318  	}
1319  	return QLA_SUCCESS;
1320  }
1321  
1322  /**
1323   * qla4xxx_about_firmware - gets FW, iscsi draft and boot loader version
1324   * @ha: Pointer to host adapter structure.
1325   *
1326   * Retrieves the FW version, iSCSI draft version & bootloader version of HBA.
1327   * Mailboxes 2 & 3 may hold an address for data. Make sure that we write 0 to
1328   * those mailboxes, if unused.
1329   **/
qla4xxx_about_firmware(struct scsi_qla_host * ha)1330  int qla4xxx_about_firmware(struct scsi_qla_host *ha)
1331  {
1332  	struct about_fw_info *about_fw = NULL;
1333  	dma_addr_t about_fw_dma;
1334  	uint32_t mbox_cmd[MBOX_REG_COUNT];
1335  	uint32_t mbox_sts[MBOX_REG_COUNT];
1336  	int status = QLA_ERROR;
1337  
1338  	about_fw = dma_alloc_coherent(&ha->pdev->dev,
1339  				      sizeof(struct about_fw_info),
1340  				      &about_fw_dma, GFP_KERNEL);
1341  	if (!about_fw) {
1342  		DEBUG2(ql4_printk(KERN_ERR, ha, "%s: Unable to alloc memory "
1343  				  "for about_fw\n", __func__));
1344  		return status;
1345  	}
1346  
1347  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1348  	memset(&mbox_sts, 0, sizeof(mbox_sts));
1349  
1350  	mbox_cmd[0] = MBOX_CMD_ABOUT_FW;
1351  	mbox_cmd[2] = LSDW(about_fw_dma);
1352  	mbox_cmd[3] = MSDW(about_fw_dma);
1353  	mbox_cmd[4] = sizeof(struct about_fw_info);
1354  
1355  	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, MBOX_REG_COUNT,
1356  					 &mbox_cmd[0], &mbox_sts[0]);
1357  	if (status != QLA_SUCCESS) {
1358  		DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_ABOUT_FW "
1359  				  "failed w/ status %04X\n", __func__,
1360  				  mbox_sts[0]));
1361  		goto exit_about_fw;
1362  	}
1363  
1364  	/* Save version information. */
1365  	ha->fw_info.fw_major = le16_to_cpu(about_fw->fw_major);
1366  	ha->fw_info.fw_minor = le16_to_cpu(about_fw->fw_minor);
1367  	ha->fw_info.fw_patch = le16_to_cpu(about_fw->fw_patch);
1368  	ha->fw_info.fw_build = le16_to_cpu(about_fw->fw_build);
1369  	memcpy(ha->fw_info.fw_build_date, about_fw->fw_build_date,
1370  	       sizeof(about_fw->fw_build_date));
1371  	memcpy(ha->fw_info.fw_build_time, about_fw->fw_build_time,
1372  	       sizeof(about_fw->fw_build_time));
1373  	strcpy((char *)ha->fw_info.fw_build_user,
1374  	       skip_spaces((char *)about_fw->fw_build_user));
1375  	ha->fw_info.fw_load_source = le16_to_cpu(about_fw->fw_load_source);
1376  	ha->fw_info.iscsi_major = le16_to_cpu(about_fw->iscsi_major);
1377  	ha->fw_info.iscsi_minor = le16_to_cpu(about_fw->iscsi_minor);
1378  	ha->fw_info.bootload_major = le16_to_cpu(about_fw->bootload_major);
1379  	ha->fw_info.bootload_minor = le16_to_cpu(about_fw->bootload_minor);
1380  	ha->fw_info.bootload_patch = le16_to_cpu(about_fw->bootload_patch);
1381  	ha->fw_info.bootload_build = le16_to_cpu(about_fw->bootload_build);
1382  	strcpy((char *)ha->fw_info.extended_timestamp,
1383  	       skip_spaces((char *)about_fw->extended_timestamp));
1384  
1385  	ha->fw_uptime_secs = le32_to_cpu(mbox_sts[5]);
1386  	ha->fw_uptime_msecs = le32_to_cpu(mbox_sts[6]);
1387  	status = QLA_SUCCESS;
1388  
1389  exit_about_fw:
1390  	dma_free_coherent(&ha->pdev->dev, sizeof(struct about_fw_info),
1391  			  about_fw, about_fw_dma);
1392  	return status;
1393  }
1394  
qla4xxx_get_default_ddb(struct scsi_qla_host * ha,uint32_t options,dma_addr_t dma_addr)1395  int qla4xxx_get_default_ddb(struct scsi_qla_host *ha, uint32_t options,
1396  			    dma_addr_t dma_addr)
1397  {
1398  	uint32_t mbox_cmd[MBOX_REG_COUNT];
1399  	uint32_t mbox_sts[MBOX_REG_COUNT];
1400  
1401  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1402  	memset(&mbox_sts, 0, sizeof(mbox_sts));
1403  
1404  	mbox_cmd[0] = MBOX_CMD_GET_DATABASE_ENTRY_DEFAULTS;
1405  	mbox_cmd[1] = options;
1406  	mbox_cmd[2] = LSDW(dma_addr);
1407  	mbox_cmd[3] = MSDW(dma_addr);
1408  
1409  	if (qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0], &mbox_sts[0]) !=
1410  	    QLA_SUCCESS) {
1411  		DEBUG2(printk("scsi%ld: %s: failed status %04X\n",
1412  		     ha->host_no, __func__, mbox_sts[0]));
1413  		return QLA_ERROR;
1414  	}
1415  	return QLA_SUCCESS;
1416  }
1417  
qla4xxx_req_ddb_entry(struct scsi_qla_host * ha,uint32_t ddb_index,uint32_t * mbx_sts)1418  int qla4xxx_req_ddb_entry(struct scsi_qla_host *ha, uint32_t ddb_index,
1419  			  uint32_t *mbx_sts)
1420  {
1421  	int status;
1422  	uint32_t mbox_cmd[MBOX_REG_COUNT];
1423  	uint32_t mbox_sts[MBOX_REG_COUNT];
1424  
1425  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1426  	memset(&mbox_sts, 0, sizeof(mbox_sts));
1427  
1428  	mbox_cmd[0] = MBOX_CMD_REQUEST_DATABASE_ENTRY;
1429  	mbox_cmd[1] = ddb_index;
1430  
1431  	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
1432  					 &mbox_sts[0]);
1433  	if (status != QLA_SUCCESS) {
1434  		DEBUG2(ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n",
1435  				   __func__, mbox_sts[0]));
1436  	}
1437  
1438  	*mbx_sts = mbox_sts[0];
1439  	return status;
1440  }
1441  
qla4xxx_clear_ddb_entry(struct scsi_qla_host * ha,uint32_t ddb_index)1442  int qla4xxx_clear_ddb_entry(struct scsi_qla_host *ha, uint32_t ddb_index)
1443  {
1444  	int status;
1445  	uint32_t mbox_cmd[MBOX_REG_COUNT];
1446  	uint32_t mbox_sts[MBOX_REG_COUNT];
1447  
1448  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1449  	memset(&mbox_sts, 0, sizeof(mbox_sts));
1450  
1451  	mbox_cmd[0] = MBOX_CMD_CLEAR_DATABASE_ENTRY;
1452  	mbox_cmd[1] = ddb_index;
1453  
1454  	status = qla4xxx_mailbox_command(ha, 2, 1, &mbox_cmd[0],
1455  					 &mbox_sts[0]);
1456  	if (status != QLA_SUCCESS) {
1457  		DEBUG2(ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n",
1458  				   __func__, mbox_sts[0]));
1459  	}
1460  
1461  	return status;
1462  }
1463  
qla4xxx_set_flash(struct scsi_qla_host * ha,dma_addr_t dma_addr,uint32_t offset,uint32_t length,uint32_t options)1464  int qla4xxx_set_flash(struct scsi_qla_host *ha, dma_addr_t dma_addr,
1465  		      uint32_t offset, uint32_t length, uint32_t options)
1466  {
1467  	uint32_t mbox_cmd[MBOX_REG_COUNT];
1468  	uint32_t mbox_sts[MBOX_REG_COUNT];
1469  	int status = QLA_SUCCESS;
1470  
1471  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1472  	memset(&mbox_sts, 0, sizeof(mbox_sts));
1473  
1474  	mbox_cmd[0] = MBOX_CMD_WRITE_FLASH;
1475  	mbox_cmd[1] = LSDW(dma_addr);
1476  	mbox_cmd[2] = MSDW(dma_addr);
1477  	mbox_cmd[3] = offset;
1478  	mbox_cmd[4] = length;
1479  	mbox_cmd[5] = options;
1480  
1481  	status = qla4xxx_mailbox_command(ha, 6, 2, &mbox_cmd[0], &mbox_sts[0]);
1482  	if (status != QLA_SUCCESS) {
1483  		DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_WRITE_FLASH "
1484  				  "failed w/ status %04X, mbx1 %04X\n",
1485  				  __func__, mbox_sts[0], mbox_sts[1]));
1486  	}
1487  	return status;
1488  }
1489  
qla4xxx_bootdb_by_index(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,dma_addr_t fw_ddb_entry_dma,uint16_t ddb_index)1490  int qla4xxx_bootdb_by_index(struct scsi_qla_host *ha,
1491  			    struct dev_db_entry *fw_ddb_entry,
1492  			    dma_addr_t fw_ddb_entry_dma, uint16_t ddb_index)
1493  {
1494  	uint32_t dev_db_start_offset = FLASH_OFFSET_DB_INFO;
1495  	uint32_t dev_db_end_offset;
1496  	int status = QLA_ERROR;
1497  
1498  	memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
1499  
1500  	dev_db_start_offset += (ddb_index * sizeof(*fw_ddb_entry));
1501  	dev_db_end_offset = FLASH_OFFSET_DB_END;
1502  
1503  	if (dev_db_start_offset > dev_db_end_offset) {
1504  		DEBUG2(ql4_printk(KERN_ERR, ha,
1505  				  "%s:Invalid DDB index %d", __func__,
1506  				  ddb_index));
1507  		goto exit_bootdb_failed;
1508  	}
1509  
1510  	if (qla4xxx_get_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
1511  			      sizeof(*fw_ddb_entry)) != QLA_SUCCESS) {
1512  		ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash"
1513  			   "failed\n", ha->host_no, __func__);
1514  		goto exit_bootdb_failed;
1515  	}
1516  
1517  	if (fw_ddb_entry->cookie == DDB_VALID_COOKIE)
1518  		status = QLA_SUCCESS;
1519  
1520  exit_bootdb_failed:
1521  	return status;
1522  }
1523  
qla4xxx_flashdb_by_index(struct scsi_qla_host * ha,struct dev_db_entry * fw_ddb_entry,dma_addr_t fw_ddb_entry_dma,uint16_t ddb_index)1524  int qla4xxx_flashdb_by_index(struct scsi_qla_host *ha,
1525  			     struct dev_db_entry *fw_ddb_entry,
1526  			     dma_addr_t fw_ddb_entry_dma, uint16_t ddb_index)
1527  {
1528  	uint32_t dev_db_start_offset;
1529  	uint32_t dev_db_end_offset;
1530  	int status = QLA_ERROR;
1531  
1532  	memset(fw_ddb_entry, 0, sizeof(*fw_ddb_entry));
1533  
1534  	if (is_qla40XX(ha)) {
1535  		dev_db_start_offset = FLASH_OFFSET_DB_INFO;
1536  		dev_db_end_offset = FLASH_OFFSET_DB_END;
1537  	} else {
1538  		dev_db_start_offset = FLASH_RAW_ACCESS_ADDR +
1539  				      (ha->hw.flt_region_ddb << 2);
1540  		/* flt_ddb_size is DDB table size for both ports
1541  		 * so divide it by 2 to calculate the offset for second port
1542  		 */
1543  		if (ha->port_num == 1)
1544  			dev_db_start_offset += (ha->hw.flt_ddb_size / 2);
1545  
1546  		dev_db_end_offset = dev_db_start_offset +
1547  				    (ha->hw.flt_ddb_size / 2);
1548  	}
1549  
1550  	dev_db_start_offset += (ddb_index * sizeof(*fw_ddb_entry));
1551  
1552  	if (dev_db_start_offset > dev_db_end_offset) {
1553  		DEBUG2(ql4_printk(KERN_ERR, ha,
1554  				  "%s:Invalid DDB index %d", __func__,
1555  				  ddb_index));
1556  		goto exit_fdb_failed;
1557  	}
1558  
1559  	if (qla4xxx_get_flash(ha, fw_ddb_entry_dma, dev_db_start_offset,
1560  			      sizeof(*fw_ddb_entry)) != QLA_SUCCESS) {
1561  		ql4_printk(KERN_ERR, ha, "scsi%ld: %s: Get Flash failed\n",
1562  			   ha->host_no, __func__);
1563  		goto exit_fdb_failed;
1564  	}
1565  
1566  	if (fw_ddb_entry->cookie == DDB_VALID_COOKIE)
1567  		status = QLA_SUCCESS;
1568  
1569  exit_fdb_failed:
1570  	return status;
1571  }
1572  
qla4xxx_get_chap(struct scsi_qla_host * ha,char * username,char * password,uint16_t idx)1573  int qla4xxx_get_chap(struct scsi_qla_host *ha, char *username, char *password,
1574  		     uint16_t idx)
1575  {
1576  	int ret = 0;
1577  	int rval = QLA_ERROR;
1578  	uint32_t offset = 0, chap_size;
1579  	struct ql4_chap_table *chap_table;
1580  	dma_addr_t chap_dma;
1581  
1582  	chap_table = dma_pool_zalloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
1583  	if (chap_table == NULL)
1584  		return -ENOMEM;
1585  
1586  	chap_size = sizeof(struct ql4_chap_table);
1587  
1588  	if (is_qla40XX(ha))
1589  		offset = FLASH_CHAP_OFFSET | (idx * chap_size);
1590  	else {
1591  		offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
1592  		/* flt_chap_size is CHAP table size for both ports
1593  		 * so divide it by 2 to calculate the offset for second port
1594  		 */
1595  		if (ha->port_num == 1)
1596  			offset += (ha->hw.flt_chap_size / 2);
1597  		offset += (idx * chap_size);
1598  	}
1599  
1600  	rval = qla4xxx_get_flash(ha, chap_dma, offset, chap_size);
1601  	if (rval != QLA_SUCCESS) {
1602  		ret = -EINVAL;
1603  		goto exit_get_chap;
1604  	}
1605  
1606  	DEBUG2(ql4_printk(KERN_INFO, ha, "Chap Cookie: x%x\n",
1607  		__le16_to_cpu(chap_table->cookie)));
1608  
1609  	if (__le16_to_cpu(chap_table->cookie) != CHAP_VALID_COOKIE) {
1610  		ql4_printk(KERN_ERR, ha, "No valid chap entry found\n");
1611  		goto exit_get_chap;
1612  	}
1613  
1614  	strscpy(password, chap_table->secret, QL4_CHAP_MAX_SECRET_LEN);
1615  	strscpy(username, chap_table->name, QL4_CHAP_MAX_NAME_LEN);
1616  	chap_table->cookie = cpu_to_le16(CHAP_VALID_COOKIE);
1617  
1618  exit_get_chap:
1619  	dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
1620  	return ret;
1621  }
1622  
1623  /**
1624   * qla4xxx_set_chap - Make a chap entry at the given index
1625   * @ha: pointer to adapter structure
1626   * @username: CHAP username to set
1627   * @password: CHAP password to set
1628   * @idx: CHAP index at which to make the entry
1629   * @bidi: type of chap entry (chap_in or chap_out)
1630   *
1631   * Create chap entry at the given index with the information provided.
1632   *
1633   * Note: Caller should acquire the chap lock before getting here.
1634   **/
qla4xxx_set_chap(struct scsi_qla_host * ha,char * username,char * password,uint16_t idx,int bidi)1635  int qla4xxx_set_chap(struct scsi_qla_host *ha, char *username, char *password,
1636  		     uint16_t idx, int bidi)
1637  {
1638  	int ret = 0;
1639  	int rval = QLA_ERROR;
1640  	uint32_t offset = 0;
1641  	struct ql4_chap_table *chap_table;
1642  	uint32_t chap_size = 0;
1643  	dma_addr_t chap_dma;
1644  
1645  	chap_table = dma_pool_zalloc(ha->chap_dma_pool, GFP_KERNEL, &chap_dma);
1646  	if (chap_table == NULL) {
1647  		ret =  -ENOMEM;
1648  		goto exit_set_chap;
1649  	}
1650  
1651  	if (bidi)
1652  		chap_table->flags |= BIT_6; /* peer */
1653  	else
1654  		chap_table->flags |= BIT_7; /* local */
1655  	chap_table->secret_len = strlen(password);
1656  	strncpy(chap_table->secret, password, MAX_CHAP_SECRET_LEN - 1);
1657  	strncpy(chap_table->name, username, MAX_CHAP_NAME_LEN - 1);
1658  	chap_table->cookie = cpu_to_le16(CHAP_VALID_COOKIE);
1659  
1660  	if (is_qla40XX(ha)) {
1661  		chap_size = MAX_CHAP_ENTRIES_40XX * sizeof(*chap_table);
1662  		offset = FLASH_CHAP_OFFSET;
1663  	} else { /* Single region contains CHAP info for both ports which is
1664  		  * divided into half for each port.
1665  		  */
1666  		chap_size = ha->hw.flt_chap_size / 2;
1667  		offset = FLASH_RAW_ACCESS_ADDR + (ha->hw.flt_region_chap << 2);
1668  		if (ha->port_num == 1)
1669  			offset += chap_size;
1670  	}
1671  
1672  	offset += (idx * sizeof(struct ql4_chap_table));
1673  	rval = qla4xxx_set_flash(ha, chap_dma, offset,
1674  				sizeof(struct ql4_chap_table),
1675  				FLASH_OPT_RMW_COMMIT);
1676  
1677  	if (rval == QLA_SUCCESS && ha->chap_list) {
1678  		/* Update ha chap_list cache */
1679  		memcpy((struct ql4_chap_table *)ha->chap_list + idx,
1680  		       chap_table, sizeof(struct ql4_chap_table));
1681  	}
1682  	dma_pool_free(ha->chap_dma_pool, chap_table, chap_dma);
1683  	if (rval != QLA_SUCCESS)
1684  		ret =  -EINVAL;
1685  
1686  exit_set_chap:
1687  	return ret;
1688  }
1689  
1690  
qla4xxx_get_uni_chap_at_index(struct scsi_qla_host * ha,char * username,char * password,uint16_t chap_index)1691  int qla4xxx_get_uni_chap_at_index(struct scsi_qla_host *ha, char *username,
1692  				  char *password, uint16_t chap_index)
1693  {
1694  	int rval = QLA_ERROR;
1695  	struct ql4_chap_table *chap_table = NULL;
1696  	int max_chap_entries;
1697  
1698  	if (!ha->chap_list) {
1699  		ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
1700  		rval = QLA_ERROR;
1701  		goto exit_uni_chap;
1702  	}
1703  
1704  	if (!username || !password) {
1705  		ql4_printk(KERN_ERR, ha, "No memory for username & secret\n");
1706  		rval = QLA_ERROR;
1707  		goto exit_uni_chap;
1708  	}
1709  
1710  	if (is_qla80XX(ha))
1711  		max_chap_entries = (ha->hw.flt_chap_size / 2) /
1712  				   sizeof(struct ql4_chap_table);
1713  	else
1714  		max_chap_entries = MAX_CHAP_ENTRIES_40XX;
1715  
1716  	if (chap_index > max_chap_entries) {
1717  		ql4_printk(KERN_ERR, ha, "Invalid Chap index\n");
1718  		rval = QLA_ERROR;
1719  		goto exit_uni_chap;
1720  	}
1721  
1722  	mutex_lock(&ha->chap_sem);
1723  	chap_table = (struct ql4_chap_table *)ha->chap_list + chap_index;
1724  	if (chap_table->cookie != cpu_to_le16(CHAP_VALID_COOKIE)) {
1725  		rval = QLA_ERROR;
1726  		goto exit_unlock_uni_chap;
1727  	}
1728  
1729  	if (!(chap_table->flags & BIT_7)) {
1730  		ql4_printk(KERN_ERR, ha, "Unidirectional entry not set\n");
1731  		rval = QLA_ERROR;
1732  		goto exit_unlock_uni_chap;
1733  	}
1734  
1735  	strscpy(password, chap_table->secret, MAX_CHAP_SECRET_LEN);
1736  	strscpy(username, chap_table->name, MAX_CHAP_NAME_LEN);
1737  
1738  	rval = QLA_SUCCESS;
1739  
1740  exit_unlock_uni_chap:
1741  	mutex_unlock(&ha->chap_sem);
1742  exit_uni_chap:
1743  	return rval;
1744  }
1745  
1746  /**
1747   * qla4xxx_get_chap_index - Get chap index given username and secret
1748   * @ha: pointer to adapter structure
1749   * @username: CHAP username to be searched
1750   * @password: CHAP password to be searched
1751   * @bidi: Is this a BIDI CHAP
1752   * @chap_index: CHAP index to be returned
1753   *
1754   * Match the username and password in the chap_list, return the index if a
1755   * match is found. If a match is not found then add the entry in FLASH and
1756   * return the index at which entry is written in the FLASH.
1757   **/
qla4xxx_get_chap_index(struct scsi_qla_host * ha,char * username,char * password,int bidi,uint16_t * chap_index)1758  int qla4xxx_get_chap_index(struct scsi_qla_host *ha, char *username,
1759  			   char *password, int bidi, uint16_t *chap_index)
1760  {
1761  	int i, rval;
1762  	int free_index = -1;
1763  	int found_index = 0;
1764  	int max_chap_entries = 0;
1765  	struct ql4_chap_table *chap_table;
1766  
1767  	if (is_qla80XX(ha))
1768  		max_chap_entries = (ha->hw.flt_chap_size / 2) /
1769  						sizeof(struct ql4_chap_table);
1770  	else
1771  		max_chap_entries = MAX_CHAP_ENTRIES_40XX;
1772  
1773  	if (!ha->chap_list) {
1774  		ql4_printk(KERN_ERR, ha, "Do not have CHAP table cache\n");
1775  		return QLA_ERROR;
1776  	}
1777  
1778  	if (!username || !password) {
1779  		ql4_printk(KERN_ERR, ha, "Do not have username and psw\n");
1780  		return QLA_ERROR;
1781  	}
1782  
1783  	mutex_lock(&ha->chap_sem);
1784  	for (i = 0; i < max_chap_entries; i++) {
1785  		chap_table = (struct ql4_chap_table *)ha->chap_list + i;
1786  		if (chap_table->cookie !=
1787  		    cpu_to_le16(CHAP_VALID_COOKIE)) {
1788  			if (i > MAX_RESRV_CHAP_IDX && free_index == -1)
1789  				free_index = i;
1790  			continue;
1791  		}
1792  		if (bidi) {
1793  			if (chap_table->flags & BIT_7)
1794  				continue;
1795  		} else {
1796  			if (chap_table->flags & BIT_6)
1797  				continue;
1798  		}
1799  		if (!strncmp(chap_table->secret, password,
1800  			     MAX_CHAP_SECRET_LEN) &&
1801  		    !strncmp(chap_table->name, username,
1802  			     MAX_CHAP_NAME_LEN)) {
1803  			*chap_index = i;
1804  			found_index = 1;
1805  			break;
1806  		}
1807  	}
1808  
1809  	/* If chap entry is not present and a free index is available then
1810  	 * write the entry in flash
1811  	 */
1812  	if (!found_index && free_index != -1) {
1813  		rval = qla4xxx_set_chap(ha, username, password,
1814  					free_index, bidi);
1815  		if (!rval) {
1816  			*chap_index = free_index;
1817  			found_index = 1;
1818  		}
1819  	}
1820  
1821  	mutex_unlock(&ha->chap_sem);
1822  
1823  	if (found_index)
1824  		return QLA_SUCCESS;
1825  	return QLA_ERROR;
1826  }
1827  
qla4xxx_conn_close_sess_logout(struct scsi_qla_host * ha,uint16_t fw_ddb_index,uint16_t connection_id,uint16_t option)1828  int qla4xxx_conn_close_sess_logout(struct scsi_qla_host *ha,
1829  				   uint16_t fw_ddb_index,
1830  				   uint16_t connection_id,
1831  				   uint16_t option)
1832  {
1833  	uint32_t mbox_cmd[MBOX_REG_COUNT];
1834  	uint32_t mbox_sts[MBOX_REG_COUNT];
1835  	int status = QLA_SUCCESS;
1836  
1837  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1838  	memset(&mbox_sts, 0, sizeof(mbox_sts));
1839  
1840  	mbox_cmd[0] = MBOX_CMD_CONN_CLOSE_SESS_LOGOUT;
1841  	mbox_cmd[1] = fw_ddb_index;
1842  	mbox_cmd[2] = connection_id;
1843  	mbox_cmd[3] = option;
1844  
1845  	status = qla4xxx_mailbox_command(ha, 4, 2, &mbox_cmd[0], &mbox_sts[0]);
1846  	if (status != QLA_SUCCESS) {
1847  		DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_CONN_CLOSE "
1848  				  "option %04x failed w/ status %04X %04X\n",
1849  				  __func__, option, mbox_sts[0], mbox_sts[1]));
1850  	}
1851  	return status;
1852  }
1853  
1854  /**
1855   * qla4_84xx_extend_idc_tmo - Extend IDC Timeout.
1856   * @ha: Pointer to host adapter structure.
1857   * @ext_tmo: idc timeout value
1858   *
1859   * Requests firmware to extend the idc timeout value.
1860   **/
qla4_84xx_extend_idc_tmo(struct scsi_qla_host * ha,uint32_t ext_tmo)1861  static int qla4_84xx_extend_idc_tmo(struct scsi_qla_host *ha, uint32_t ext_tmo)
1862  {
1863  	uint32_t mbox_cmd[MBOX_REG_COUNT];
1864  	uint32_t mbox_sts[MBOX_REG_COUNT];
1865  	int status;
1866  
1867  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1868  	memset(&mbox_sts, 0, sizeof(mbox_sts));
1869  	ext_tmo &= 0xf;
1870  
1871  	mbox_cmd[0] = MBOX_CMD_IDC_TIME_EXTEND;
1872  	mbox_cmd[1] = ((ha->idc_info.request_desc & 0xfffff0ff) |
1873  		       (ext_tmo << 8));		/* new timeout */
1874  	mbox_cmd[2] = ha->idc_info.info1;
1875  	mbox_cmd[3] = ha->idc_info.info2;
1876  	mbox_cmd[4] = ha->idc_info.info3;
1877  
1878  	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, MBOX_REG_COUNT,
1879  					 mbox_cmd, mbox_sts);
1880  	if (status != QLA_SUCCESS) {
1881  		DEBUG2(ql4_printk(KERN_INFO, ha,
1882  				  "scsi%ld: %s: failed status %04X\n",
1883  				  ha->host_no, __func__, mbox_sts[0]));
1884  		return QLA_ERROR;
1885  	} else {
1886  		ql4_printk(KERN_INFO, ha, "%s: IDC timeout extended by %d secs\n",
1887  			   __func__, ext_tmo);
1888  	}
1889  
1890  	return QLA_SUCCESS;
1891  }
1892  
qla4xxx_disable_acb(struct scsi_qla_host * ha)1893  int qla4xxx_disable_acb(struct scsi_qla_host *ha)
1894  {
1895  	uint32_t mbox_cmd[MBOX_REG_COUNT];
1896  	uint32_t mbox_sts[MBOX_REG_COUNT];
1897  	int status = QLA_SUCCESS;
1898  
1899  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1900  	memset(&mbox_sts, 0, sizeof(mbox_sts));
1901  
1902  	mbox_cmd[0] = MBOX_CMD_DISABLE_ACB;
1903  
1904  	status = qla4xxx_mailbox_command(ha, 8, 5, &mbox_cmd[0], &mbox_sts[0]);
1905  	if (status != QLA_SUCCESS) {
1906  		DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_DISABLE_ACB "
1907  				  "failed w/ status %04X %04X %04X", __func__,
1908  				  mbox_sts[0], mbox_sts[1], mbox_sts[2]));
1909  	} else {
1910  		if (is_qla8042(ha) &&
1911  		    test_bit(DPC_POST_IDC_ACK, &ha->dpc_flags) &&
1912  		    (mbox_sts[0] != MBOX_STS_COMMAND_COMPLETE)) {
1913  			/*
1914  			 * Disable ACB mailbox command takes time to complete
1915  			 * based on the total number of targets connected.
1916  			 * For 512 targets, it took approximately 5 secs to
1917  			 * complete. Setting the timeout value to 8, with the 3
1918  			 * secs buffer.
1919  			 */
1920  			qla4_84xx_extend_idc_tmo(ha, IDC_EXTEND_TOV);
1921  			if (!wait_for_completion_timeout(&ha->disable_acb_comp,
1922  							 IDC_EXTEND_TOV * HZ)) {
1923  				ql4_printk(KERN_WARNING, ha, "%s: Disable ACB Completion not received\n",
1924  					   __func__);
1925  			}
1926  		}
1927  	}
1928  	return status;
1929  }
1930  
qla4xxx_get_acb(struct scsi_qla_host * ha,dma_addr_t acb_dma,uint32_t acb_type,uint32_t len)1931  int qla4xxx_get_acb(struct scsi_qla_host *ha, dma_addr_t acb_dma,
1932  		    uint32_t acb_type, uint32_t len)
1933  {
1934  	uint32_t mbox_cmd[MBOX_REG_COUNT];
1935  	uint32_t mbox_sts[MBOX_REG_COUNT];
1936  	int status = QLA_SUCCESS;
1937  
1938  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
1939  	memset(&mbox_sts, 0, sizeof(mbox_sts));
1940  
1941  	mbox_cmd[0] = MBOX_CMD_GET_ACB;
1942  	mbox_cmd[1] = acb_type;
1943  	mbox_cmd[2] = LSDW(acb_dma);
1944  	mbox_cmd[3] = MSDW(acb_dma);
1945  	mbox_cmd[4] = len;
1946  
1947  	status = qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]);
1948  	if (status != QLA_SUCCESS) {
1949  		DEBUG2(ql4_printk(KERN_WARNING, ha, "%s: MBOX_CMD_GET_ACB "
1950  				  "failed w/ status %04X\n", __func__,
1951  				  mbox_sts[0]));
1952  	}
1953  	return status;
1954  }
1955  
qla4xxx_set_acb(struct scsi_qla_host * ha,uint32_t * mbox_cmd,uint32_t * mbox_sts,dma_addr_t acb_dma)1956  int qla4xxx_set_acb(struct scsi_qla_host *ha, uint32_t *mbox_cmd,
1957  		    uint32_t *mbox_sts, dma_addr_t acb_dma)
1958  {
1959  	int status = QLA_SUCCESS;
1960  
1961  	memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
1962  	memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
1963  	mbox_cmd[0] = MBOX_CMD_SET_ACB;
1964  	mbox_cmd[1] = 0; /* Primary ACB */
1965  	mbox_cmd[2] = LSDW(acb_dma);
1966  	mbox_cmd[3] = MSDW(acb_dma);
1967  	mbox_cmd[4] = sizeof(struct addr_ctrl_blk);
1968  
1969  	status = qla4xxx_mailbox_command(ha, 5, 5, &mbox_cmd[0], &mbox_sts[0]);
1970  	if (status != QLA_SUCCESS) {
1971  		DEBUG2(ql4_printk(KERN_WARNING, ha,  "%s: MBOX_CMD_SET_ACB "
1972  				  "failed w/ status %04X\n", __func__,
1973  				  mbox_sts[0]));
1974  	}
1975  	return status;
1976  }
1977  
qla4xxx_set_param_ddbentry(struct scsi_qla_host * ha,struct ddb_entry * ddb_entry,struct iscsi_cls_conn * cls_conn,uint32_t * mbx_sts)1978  int qla4xxx_set_param_ddbentry(struct scsi_qla_host *ha,
1979  			       struct ddb_entry *ddb_entry,
1980  			       struct iscsi_cls_conn *cls_conn,
1981  			       uint32_t *mbx_sts)
1982  {
1983  	struct dev_db_entry *fw_ddb_entry;
1984  	struct iscsi_conn *conn;
1985  	struct iscsi_session *sess;
1986  	struct qla_conn *qla_conn;
1987  	struct sockaddr *dst_addr;
1988  	dma_addr_t fw_ddb_entry_dma;
1989  	int status = QLA_SUCCESS;
1990  	int rval = 0;
1991  	struct sockaddr_in *addr;
1992  	struct sockaddr_in6 *addr6;
1993  	char *ip;
1994  	uint16_t iscsi_opts = 0;
1995  	uint32_t options = 0;
1996  	uint16_t idx, *ptid;
1997  
1998  	fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
1999  					  &fw_ddb_entry_dma, GFP_KERNEL);
2000  	if (!fw_ddb_entry) {
2001  		DEBUG2(ql4_printk(KERN_ERR, ha,
2002  				  "%s: Unable to allocate dma buffer.\n",
2003  				  __func__));
2004  		rval = -ENOMEM;
2005  		goto exit_set_param_no_free;
2006  	}
2007  
2008  	conn = cls_conn->dd_data;
2009  	qla_conn = conn->dd_data;
2010  	sess = conn->session;
2011  	dst_addr = (struct sockaddr *)&qla_conn->qla_ep->dst_addr;
2012  
2013  	if (dst_addr->sa_family == AF_INET6)
2014  		options |= IPV6_DEFAULT_DDB_ENTRY;
2015  
2016  	status = qla4xxx_get_default_ddb(ha, options, fw_ddb_entry_dma);
2017  	if (status == QLA_ERROR) {
2018  		rval = -EINVAL;
2019  		goto exit_set_param;
2020  	}
2021  
2022  	ptid = (uint16_t *)&fw_ddb_entry->isid[1];
2023  	*ptid = cpu_to_le16((uint16_t)ddb_entry->sess->target_id);
2024  
2025  	DEBUG2(ql4_printk(KERN_INFO, ha, "ISID [%pmR]\n", fw_ddb_entry->isid));
2026  
2027  	iscsi_opts = le16_to_cpu(fw_ddb_entry->iscsi_options);
2028  	memset(fw_ddb_entry->iscsi_alias, 0, sizeof(fw_ddb_entry->iscsi_alias));
2029  
2030  	memset(fw_ddb_entry->iscsi_name, 0, sizeof(fw_ddb_entry->iscsi_name));
2031  
2032  	if (sess->targetname != NULL) {
2033  		memcpy(fw_ddb_entry->iscsi_name, sess->targetname,
2034  		       min(strlen(sess->targetname),
2035  		       sizeof(fw_ddb_entry->iscsi_name)));
2036  	}
2037  
2038  	memset(fw_ddb_entry->ip_addr, 0, sizeof(fw_ddb_entry->ip_addr));
2039  	memset(fw_ddb_entry->tgt_addr, 0, sizeof(fw_ddb_entry->tgt_addr));
2040  
2041  	fw_ddb_entry->options =  DDB_OPT_TARGET | DDB_OPT_AUTO_SENDTGTS_DISABLE;
2042  
2043  	if (dst_addr->sa_family == AF_INET) {
2044  		addr = (struct sockaddr_in *)dst_addr;
2045  		ip = (char *)&addr->sin_addr;
2046  		memcpy(fw_ddb_entry->ip_addr, ip, IP_ADDR_LEN);
2047  		fw_ddb_entry->port = cpu_to_le16(ntohs(addr->sin_port));
2048  		DEBUG2(ql4_printk(KERN_INFO, ha,
2049  				  "%s: Destination Address [%pI4]: index [%d]\n",
2050  				   __func__, fw_ddb_entry->ip_addr,
2051  				  ddb_entry->fw_ddb_index));
2052  	} else if (dst_addr->sa_family == AF_INET6) {
2053  		addr6 = (struct sockaddr_in6 *)dst_addr;
2054  		ip = (char *)&addr6->sin6_addr;
2055  		memcpy(fw_ddb_entry->ip_addr, ip, IPv6_ADDR_LEN);
2056  		fw_ddb_entry->port = cpu_to_le16(ntohs(addr6->sin6_port));
2057  		fw_ddb_entry->options |= DDB_OPT_IPV6_DEVICE;
2058  		DEBUG2(ql4_printk(KERN_INFO, ha,
2059  				  "%s: Destination Address [%pI6]: index [%d]\n",
2060  				   __func__, fw_ddb_entry->ip_addr,
2061  				  ddb_entry->fw_ddb_index));
2062  	} else {
2063  		ql4_printk(KERN_ERR, ha,
2064  			   "%s: Failed to get IP Address\n",
2065  			   __func__);
2066  		rval = -EINVAL;
2067  		goto exit_set_param;
2068  	}
2069  
2070  	/* CHAP */
2071  	if (sess->username != NULL && sess->password != NULL) {
2072  		if (strlen(sess->username) && strlen(sess->password)) {
2073  			iscsi_opts |= BIT_7;
2074  
2075  			rval = qla4xxx_get_chap_index(ha, sess->username,
2076  						sess->password,
2077  						LOCAL_CHAP, &idx);
2078  			if (rval)
2079  				goto exit_set_param;
2080  
2081  			fw_ddb_entry->chap_tbl_idx = cpu_to_le16(idx);
2082  		}
2083  	}
2084  
2085  	if (sess->username_in != NULL && sess->password_in != NULL) {
2086  		/* Check if BIDI CHAP */
2087  		if (strlen(sess->username_in) && strlen(sess->password_in)) {
2088  			iscsi_opts |= BIT_4;
2089  
2090  			rval = qla4xxx_get_chap_index(ha, sess->username_in,
2091  						      sess->password_in,
2092  						      BIDI_CHAP, &idx);
2093  			if (rval)
2094  				goto exit_set_param;
2095  		}
2096  	}
2097  
2098  	if (sess->initial_r2t_en)
2099  		iscsi_opts |= BIT_10;
2100  
2101  	if (sess->imm_data_en)
2102  		iscsi_opts |= BIT_11;
2103  
2104  	fw_ddb_entry->iscsi_options = cpu_to_le16(iscsi_opts);
2105  
2106  	if (conn->max_recv_dlength)
2107  		fw_ddb_entry->iscsi_max_rcv_data_seg_len =
2108  		  cpu_to_le16((conn->max_recv_dlength / BYTE_UNITS));
2109  
2110  	if (sess->max_r2t)
2111  		fw_ddb_entry->iscsi_max_outsnd_r2t = cpu_to_le16(sess->max_r2t);
2112  
2113  	if (sess->first_burst)
2114  		fw_ddb_entry->iscsi_first_burst_len =
2115  		       cpu_to_le16((sess->first_burst / BYTE_UNITS));
2116  
2117  	if (sess->max_burst)
2118  		fw_ddb_entry->iscsi_max_burst_len =
2119  			cpu_to_le16((sess->max_burst / BYTE_UNITS));
2120  
2121  	if (sess->time2wait)
2122  		fw_ddb_entry->iscsi_def_time2wait =
2123  			cpu_to_le16(sess->time2wait);
2124  
2125  	if (sess->time2retain)
2126  		fw_ddb_entry->iscsi_def_time2retain =
2127  			cpu_to_le16(sess->time2retain);
2128  
2129  	status = qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index,
2130  				       fw_ddb_entry_dma, mbx_sts);
2131  
2132  	if (status != QLA_SUCCESS)
2133  		rval = -EINVAL;
2134  exit_set_param:
2135  	dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
2136  			  fw_ddb_entry, fw_ddb_entry_dma);
2137  exit_set_param_no_free:
2138  	return rval;
2139  }
2140  
qla4xxx_get_mgmt_data(struct scsi_qla_host * ha,uint16_t fw_ddb_index,uint16_t stats_size,dma_addr_t stats_dma)2141  int qla4xxx_get_mgmt_data(struct scsi_qla_host *ha, uint16_t fw_ddb_index,
2142  			  uint16_t stats_size, dma_addr_t stats_dma)
2143  {
2144  	int status = QLA_SUCCESS;
2145  	uint32_t mbox_cmd[MBOX_REG_COUNT];
2146  	uint32_t mbox_sts[MBOX_REG_COUNT];
2147  
2148  	memset(mbox_cmd, 0, sizeof(mbox_cmd[0]) * MBOX_REG_COUNT);
2149  	memset(mbox_sts, 0, sizeof(mbox_sts[0]) * MBOX_REG_COUNT);
2150  	mbox_cmd[0] = MBOX_CMD_GET_MANAGEMENT_DATA;
2151  	mbox_cmd[1] = fw_ddb_index;
2152  	mbox_cmd[2] = LSDW(stats_dma);
2153  	mbox_cmd[3] = MSDW(stats_dma);
2154  	mbox_cmd[4] = stats_size;
2155  
2156  	status = qla4xxx_mailbox_command(ha, 5, 1, &mbox_cmd[0], &mbox_sts[0]);
2157  	if (status != QLA_SUCCESS) {
2158  		DEBUG2(ql4_printk(KERN_WARNING, ha,
2159  				  "%s: MBOX_CMD_GET_MANAGEMENT_DATA "
2160  				  "failed w/ status %04X\n", __func__,
2161  				  mbox_sts[0]));
2162  	}
2163  	return status;
2164  }
2165  
qla4xxx_get_ip_state(struct scsi_qla_host * ha,uint32_t acb_idx,uint32_t ip_idx,uint32_t * sts)2166  int qla4xxx_get_ip_state(struct scsi_qla_host *ha, uint32_t acb_idx,
2167  			 uint32_t ip_idx, uint32_t *sts)
2168  {
2169  	uint32_t mbox_cmd[MBOX_REG_COUNT];
2170  	uint32_t mbox_sts[MBOX_REG_COUNT];
2171  	int status = QLA_SUCCESS;
2172  
2173  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2174  	memset(&mbox_sts, 0, sizeof(mbox_sts));
2175  	mbox_cmd[0] = MBOX_CMD_GET_IP_ADDR_STATE;
2176  	mbox_cmd[1] = acb_idx;
2177  	mbox_cmd[2] = ip_idx;
2178  
2179  	status = qla4xxx_mailbox_command(ha, 3, 8, &mbox_cmd[0], &mbox_sts[0]);
2180  	if (status != QLA_SUCCESS) {
2181  		DEBUG2(ql4_printk(KERN_WARNING, ha,  "%s: "
2182  				  "MBOX_CMD_GET_IP_ADDR_STATE failed w/ "
2183  				  "status %04X\n", __func__, mbox_sts[0]));
2184  	}
2185  	memcpy(sts, mbox_sts, sizeof(mbox_sts));
2186  	return status;
2187  }
2188  
qla4xxx_get_nvram(struct scsi_qla_host * ha,dma_addr_t nvram_dma,uint32_t offset,uint32_t size)2189  int qla4xxx_get_nvram(struct scsi_qla_host *ha, dma_addr_t nvram_dma,
2190  		      uint32_t offset, uint32_t size)
2191  {
2192  	int status = QLA_SUCCESS;
2193  	uint32_t mbox_cmd[MBOX_REG_COUNT];
2194  	uint32_t mbox_sts[MBOX_REG_COUNT];
2195  
2196  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2197  	memset(&mbox_sts, 0, sizeof(mbox_sts));
2198  
2199  	mbox_cmd[0] = MBOX_CMD_GET_NVRAM;
2200  	mbox_cmd[1] = LSDW(nvram_dma);
2201  	mbox_cmd[2] = MSDW(nvram_dma);
2202  	mbox_cmd[3] = offset;
2203  	mbox_cmd[4] = size;
2204  
2205  	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
2206  					 &mbox_sts[0]);
2207  	if (status != QLA_SUCCESS) {
2208  		DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
2209  				  "status %04X\n", ha->host_no, __func__,
2210  				  mbox_sts[0]));
2211  	}
2212  	return status;
2213  }
2214  
qla4xxx_set_nvram(struct scsi_qla_host * ha,dma_addr_t nvram_dma,uint32_t offset,uint32_t size)2215  int qla4xxx_set_nvram(struct scsi_qla_host *ha, dma_addr_t nvram_dma,
2216  		      uint32_t offset, uint32_t size)
2217  {
2218  	int status = QLA_SUCCESS;
2219  	uint32_t mbox_cmd[MBOX_REG_COUNT];
2220  	uint32_t mbox_sts[MBOX_REG_COUNT];
2221  
2222  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2223  	memset(&mbox_sts, 0, sizeof(mbox_sts));
2224  
2225  	mbox_cmd[0] = MBOX_CMD_SET_NVRAM;
2226  	mbox_cmd[1] = LSDW(nvram_dma);
2227  	mbox_cmd[2] = MSDW(nvram_dma);
2228  	mbox_cmd[3] = offset;
2229  	mbox_cmd[4] = size;
2230  
2231  	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 1, &mbox_cmd[0],
2232  					 &mbox_sts[0]);
2233  	if (status != QLA_SUCCESS) {
2234  		DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
2235  				  "status %04X\n", ha->host_no, __func__,
2236  				  mbox_sts[0]));
2237  	}
2238  	return status;
2239  }
2240  
qla4xxx_restore_factory_defaults(struct scsi_qla_host * ha,uint32_t region,uint32_t field0,uint32_t field1)2241  int qla4xxx_restore_factory_defaults(struct scsi_qla_host *ha,
2242  				     uint32_t region, uint32_t field0,
2243  				     uint32_t field1)
2244  {
2245  	int status = QLA_SUCCESS;
2246  	uint32_t mbox_cmd[MBOX_REG_COUNT];
2247  	uint32_t mbox_sts[MBOX_REG_COUNT];
2248  
2249  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2250  	memset(&mbox_sts, 0, sizeof(mbox_sts));
2251  
2252  	mbox_cmd[0] = MBOX_CMD_RESTORE_FACTORY_DEFAULTS;
2253  	mbox_cmd[3] = region;
2254  	mbox_cmd[4] = field0;
2255  	mbox_cmd[5] = field1;
2256  
2257  	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 3, &mbox_cmd[0],
2258  					 &mbox_sts[0]);
2259  	if (status != QLA_SUCCESS) {
2260  		DEBUG2(ql4_printk(KERN_ERR, ha, "scsi%ld: %s: failed "
2261  				  "status %04X\n", ha->host_no, __func__,
2262  				  mbox_sts[0]));
2263  	}
2264  	return status;
2265  }
2266  
2267  /**
2268   * qla4_8xxx_set_param - set driver version in firmware.
2269   * @ha: Pointer to host adapter structure.
2270   * @param: Parameter to set i.e driver version
2271   **/
qla4_8xxx_set_param(struct scsi_qla_host * ha,int param)2272  int qla4_8xxx_set_param(struct scsi_qla_host *ha, int param)
2273  {
2274  	uint32_t mbox_cmd[MBOX_REG_COUNT];
2275  	uint32_t mbox_sts[MBOX_REG_COUNT];
2276  	uint32_t status;
2277  
2278  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2279  	memset(&mbox_sts, 0, sizeof(mbox_sts));
2280  
2281  	mbox_cmd[0] = MBOX_CMD_SET_PARAM;
2282  	if (param == SET_DRVR_VERSION) {
2283  		mbox_cmd[1] = SET_DRVR_VERSION;
2284  		strncpy((char *)&mbox_cmd[2], QLA4XXX_DRIVER_VERSION,
2285  			MAX_DRVR_VER_LEN - 1);
2286  	} else {
2287  		ql4_printk(KERN_ERR, ha, "%s: invalid parameter 0x%x\n",
2288  			   __func__, param);
2289  		status = QLA_ERROR;
2290  		goto exit_set_param;
2291  	}
2292  
2293  	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, 2, mbox_cmd,
2294  					 mbox_sts);
2295  	if (status == QLA_ERROR)
2296  		ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n",
2297  			   __func__, mbox_sts[0]);
2298  
2299  exit_set_param:
2300  	return status;
2301  }
2302  
2303  /**
2304   * qla4_83xx_post_idc_ack - post IDC ACK
2305   * @ha: Pointer to host adapter structure.
2306   *
2307   * Posts IDC ACK for IDC Request Notification AEN.
2308   **/
qla4_83xx_post_idc_ack(struct scsi_qla_host * ha)2309  int qla4_83xx_post_idc_ack(struct scsi_qla_host *ha)
2310  {
2311  	uint32_t mbox_cmd[MBOX_REG_COUNT];
2312  	uint32_t mbox_sts[MBOX_REG_COUNT];
2313  	int status;
2314  
2315  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2316  	memset(&mbox_sts, 0, sizeof(mbox_sts));
2317  
2318  	mbox_cmd[0] = MBOX_CMD_IDC_ACK;
2319  	mbox_cmd[1] = ha->idc_info.request_desc;
2320  	mbox_cmd[2] = ha->idc_info.info1;
2321  	mbox_cmd[3] = ha->idc_info.info2;
2322  	mbox_cmd[4] = ha->idc_info.info3;
2323  
2324  	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, MBOX_REG_COUNT,
2325  					 mbox_cmd, mbox_sts);
2326  	if (status == QLA_ERROR)
2327  		ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n", __func__,
2328  			   mbox_sts[0]);
2329  	else
2330  	       ql4_printk(KERN_INFO, ha, "%s: IDC ACK posted\n", __func__);
2331  
2332  	return status;
2333  }
2334  
qla4_84xx_config_acb(struct scsi_qla_host * ha,int acb_config)2335  int qla4_84xx_config_acb(struct scsi_qla_host *ha, int acb_config)
2336  {
2337  	uint32_t mbox_cmd[MBOX_REG_COUNT];
2338  	uint32_t mbox_sts[MBOX_REG_COUNT];
2339  	struct addr_ctrl_blk *acb = NULL;
2340  	uint32_t acb_len = sizeof(struct addr_ctrl_blk);
2341  	int rval = QLA_SUCCESS;
2342  	dma_addr_t acb_dma;
2343  
2344  	acb = dma_alloc_coherent(&ha->pdev->dev,
2345  				 sizeof(struct addr_ctrl_blk),
2346  				 &acb_dma, GFP_KERNEL);
2347  	if (!acb) {
2348  		ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n", __func__);
2349  		rval = QLA_ERROR;
2350  		goto exit_config_acb;
2351  	}
2352  	memset(acb, 0, acb_len);
2353  
2354  	switch (acb_config) {
2355  	case ACB_CONFIG_DISABLE:
2356  		rval = qla4xxx_get_acb(ha, acb_dma, 0, acb_len);
2357  		if (rval != QLA_SUCCESS)
2358  			goto exit_free_acb;
2359  
2360  		rval = qla4xxx_disable_acb(ha);
2361  		if (rval != QLA_SUCCESS)
2362  			goto exit_free_acb;
2363  
2364  		if (!ha->saved_acb)
2365  			ha->saved_acb = kzalloc(acb_len, GFP_KERNEL);
2366  
2367  		if (!ha->saved_acb) {
2368  			ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
2369  				   __func__);
2370  			rval = QLA_ERROR;
2371  			goto exit_free_acb;
2372  		}
2373  		memcpy(ha->saved_acb, acb, acb_len);
2374  		break;
2375  	case ACB_CONFIG_SET:
2376  
2377  		if (!ha->saved_acb) {
2378  			ql4_printk(KERN_ERR, ha, "%s: Can't set ACB, Saved ACB not available\n",
2379  				   __func__);
2380  			rval = QLA_ERROR;
2381  			goto exit_free_acb;
2382  		}
2383  
2384  		memcpy(acb, ha->saved_acb, acb_len);
2385  
2386  		rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
2387  		if (rval != QLA_SUCCESS)
2388  			goto exit_free_acb;
2389  
2390  		break;
2391  	default:
2392  		ql4_printk(KERN_ERR, ha, "%s: Invalid ACB Configuration\n",
2393  			   __func__);
2394  	}
2395  
2396  exit_free_acb:
2397  	dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk), acb,
2398  			  acb_dma);
2399  exit_config_acb:
2400  	if ((acb_config == ACB_CONFIG_SET) && ha->saved_acb) {
2401  		kfree(ha->saved_acb);
2402  		ha->saved_acb = NULL;
2403  	}
2404  	DEBUG2(ql4_printk(KERN_INFO, ha,
2405  			  "%s %s\n", __func__,
2406  			  rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
2407  	return rval;
2408  }
2409  
qla4_83xx_get_port_config(struct scsi_qla_host * ha,uint32_t * config)2410  int qla4_83xx_get_port_config(struct scsi_qla_host *ha, uint32_t *config)
2411  {
2412  	uint32_t mbox_cmd[MBOX_REG_COUNT];
2413  	uint32_t mbox_sts[MBOX_REG_COUNT];
2414  	int status;
2415  
2416  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2417  	memset(&mbox_sts, 0, sizeof(mbox_sts));
2418  
2419  	mbox_cmd[0] = MBOX_CMD_GET_PORT_CONFIG;
2420  
2421  	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, MBOX_REG_COUNT,
2422  					 mbox_cmd, mbox_sts);
2423  	if (status == QLA_SUCCESS)
2424  		*config = mbox_sts[1];
2425  	else
2426  		ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n", __func__,
2427  			   mbox_sts[0]);
2428  
2429  	return status;
2430  }
2431  
qla4_83xx_set_port_config(struct scsi_qla_host * ha,uint32_t * config)2432  int qla4_83xx_set_port_config(struct scsi_qla_host *ha, uint32_t *config)
2433  {
2434  	uint32_t mbox_cmd[MBOX_REG_COUNT];
2435  	uint32_t mbox_sts[MBOX_REG_COUNT];
2436  	int status;
2437  
2438  	memset(&mbox_cmd, 0, sizeof(mbox_cmd));
2439  	memset(&mbox_sts, 0, sizeof(mbox_sts));
2440  
2441  	mbox_cmd[0] = MBOX_CMD_SET_PORT_CONFIG;
2442  	mbox_cmd[1] = *config;
2443  
2444  	status = qla4xxx_mailbox_command(ha, MBOX_REG_COUNT, MBOX_REG_COUNT,
2445  				mbox_cmd, mbox_sts);
2446  	if (status != QLA_SUCCESS)
2447  		ql4_printk(KERN_ERR, ha, "%s: failed status %04X\n", __func__,
2448  			   mbox_sts[0]);
2449  
2450  	return status;
2451  }
2452