[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / scsi / fnic / fnic_res.c

/*
 * Copyright 2008 Cisco Systems, Inc.  All rights reserved.
 * Copyright 2007 Nuova Systems, Inc.  All rights reserved.
 *
 * This program is free software; you may redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
#include <linux/errno.h>
#include <linux/types.h>
#include <linux/pci.h>
#include "wq_enet_desc.h"
#include "rq_enet_desc.h"
#include "cq_enet_desc.h"
#include "vnic_resource.h"
#include "vnic_dev.h"
#include "vnic_wq.h"
#include "vnic_rq.h"
#include "vnic_cq.h"
#include "vnic_intr.h"
#include "vnic_stats.h"
#include "vnic_nic.h"
#include "fnic.h"

int fnic_get_vnic_config(struct fnic *fnic)
{
	struct vnic_fc_config *c = &fnic->config;
	int err;

#define GET_CONFIG(m) \
	do { \
		err = vnic_dev_spec(fnic->vdev, \
				    offsetof(struct vnic_fc_config, m), \
				    sizeof(c->m), &c->m); \
		if (err) { \
			shost_printk(KERN_ERR, fnic->lport->host, \
				     "Error getting %s, %d\n", #m, \
				     err); \
			return err; \
		} \
	} while (0);

	GET_CONFIG(node_wwn);
	GET_CONFIG(port_wwn);
	GET_CONFIG(wq_enet_desc_count);
	GET_CONFIG(wq_copy_desc_count);
	GET_CONFIG(rq_desc_count);
	GET_CONFIG(maxdatafieldsize);
	GET_CONFIG(ed_tov);
	GET_CONFIG(ra_tov);
	GET_CONFIG(intr_timer);
	GET_CONFIG(intr_timer_type);
	GET_CONFIG(flags);
	GET_CONFIG(flogi_retries);
	GET_CONFIG(flogi_timeout);
	GET_CONFIG(plogi_retries);
	GET_CONFIG(plogi_timeout);
	GET_CONFIG(io_throttle_count);
	GET_CONFIG(link_down_timeout);
	GET_CONFIG(port_down_timeout);
	GET_CONFIG(port_down_io_retries);
	GET_CONFIG(luns_per_tgt);

	c->wq_enet_desc_count =
		min_t(u32, VNIC_FNIC_WQ_DESCS_MAX,
		      max_t(u32, VNIC_FNIC_WQ_DESCS_MIN,
			    c->wq_enet_desc_count));
	c->wq_enet_desc_count = ALIGN(c->wq_enet_desc_count, 16);

	c->wq_copy_desc_count =
		min_t(u32, VNIC_FNIC_WQ_COPY_DESCS_MAX,
		      max_t(u32, VNIC_FNIC_WQ_COPY_DESCS_MIN,
			    c->wq_copy_desc_count));
	c->wq_copy_desc_count = ALIGN(c->wq_copy_desc_count, 16);

	c->rq_desc_count =
		min_t(u32, VNIC_FNIC_RQ_DESCS_MAX,
		      max_t(u32, VNIC_FNIC_RQ_DESCS_MIN,
			    c->rq_desc_count));
	c->rq_desc_count = ALIGN(c->rq_desc_count, 16);

	c->maxdatafieldsize =
		min_t(u16, VNIC_FNIC_MAXDATAFIELDSIZE_MAX,
		      max_t(u16, VNIC_FNIC_MAXDATAFIELDSIZE_MIN,
			    c->maxdatafieldsize));
	c->ed_tov =
		min_t(u32, VNIC_FNIC_EDTOV_MAX,
		      max_t(u32, VNIC_FNIC_EDTOV_MIN,
			    c->ed_tov));

	c->ra_tov =
		min_t(u32, VNIC_FNIC_RATOV_MAX,
		      max_t(u32, VNIC_FNIC_RATOV_MIN,
			    c->ra_tov));

	c->flogi_retries =
		min_t(u32, VNIC_FNIC_FLOGI_RETRIES_MAX, c->flogi_retries);

	c->flogi_timeout =
		min_t(u32, VNIC_FNIC_FLOGI_TIMEOUT_MAX,
		      max_t(u32, VNIC_FNIC_FLOGI_TIMEOUT_MIN,
			    c->flogi_timeout));

	c->plogi_retries =
		min_t(u32, VNIC_FNIC_PLOGI_RETRIES_MAX, c->plogi_retries);

	c->plogi_timeout =
		min_t(u32, VNIC_FNIC_PLOGI_TIMEOUT_MAX,
		      max_t(u32, VNIC_FNIC_PLOGI_TIMEOUT_MIN,
			    c->plogi_timeout));

	c->io_throttle_count =
		min_t(u32, VNIC_FNIC_IO_THROTTLE_COUNT_MAX,
		      max_t(u32, VNIC_FNIC_IO_THROTTLE_COUNT_MIN,
			    c->io_throttle_count));

	c->link_down_timeout =
		min_t(u32, VNIC_FNIC_LINK_DOWN_TIMEOUT_MAX,
		      c->link_down_timeout);

	c->port_down_timeout =
		min_t(u32, VNIC_FNIC_PORT_DOWN_TIMEOUT_MAX,
		      c->port_down_timeout);

	c->port_down_io_retries =
		min_t(u32, VNIC_FNIC_PORT_DOWN_IO_RETRIES_MAX,
		      c->port_down_io_retries);

	c->luns_per_tgt =
		min_t(u32, VNIC_FNIC_LUNS_PER_TARGET_MAX,
		      max_t(u32, VNIC_FNIC_LUNS_PER_TARGET_MIN,
			    c->luns_per_tgt));

	c->intr_timer = min_t(u16, VNIC_INTR_TIMER_MAX, c->intr_timer);
	c->intr_timer_type = c->intr_timer_type;

	shost_printk(KERN_INFO, fnic->lport->host,
		     "vNIC MAC addr %pM "
		     "wq/wq_copy/rq %d/%d/%d\n",
		     fnic->ctlr.ctl_src_addr,
		     c->wq_enet_desc_count, c->wq_copy_desc_count,
		     c->rq_desc_count);
	shost_printk(KERN_INFO, fnic->lport->host,
		     "vNIC node wwn %llx port wwn %llx\n",
		     c->node_wwn, c->port_wwn);
	shost_printk(KERN_INFO, fnic->lport->host,
		     "vNIC ed_tov %d ra_tov %d\n",
		     c->ed_tov, c->ra_tov);
	shost_printk(KERN_INFO, fnic->lport->host,
		     "vNIC mtu %d intr timer %d\n",
		     c->maxdatafieldsize, c->intr_timer);
	shost_printk(KERN_INFO, fnic->lport->host,
		     "vNIC flags 0x%x luns per tgt %d\n",
		     c->flags, c->luns_per_tgt);
	shost_printk(KERN_INFO, fnic->lport->host,
		     "vNIC flogi_retries %d flogi timeout %d\n",
		     c->flogi_retries, c->flogi_timeout);
	shost_printk(KERN_INFO, fnic->lport->host,
		     "vNIC plogi retries %d plogi timeout %d\n",
		     c->plogi_retries, c->plogi_timeout);
	shost_printk(KERN_INFO, fnic->lport->host,
		     "vNIC io throttle count %d link dn timeout %d\n",
		     c->io_throttle_count, c->link_down_timeout);
	shost_printk(KERN_INFO, fnic->lport->host,
		     "vNIC port dn io retries %d port dn timeout %d\n",
		     c->port_down_io_retries, c->port_down_timeout);

	return 0;
}

int fnic_set_nic_config(struct fnic *fnic, u8 rss_default_cpu,
			u8 rss_hash_type,
			u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable,
			u8 tso_ipid_split_en, u8 ig_vlan_strip_en)
{
	u64 a0, a1;
	u32 nic_cfg;
	int wait = 1000;

	vnic_set_nic_cfg(&nic_cfg, rss_default_cpu,
		rss_hash_type, rss_hash_bits, rss_base_cpu,
		rss_enable, tso_ipid_split_en, ig_vlan_strip_en);

	a0 = nic_cfg;
	a1 = 0;

	return vnic_dev_cmd(fnic->vdev, CMD_NIC_CFG, &a0, &a1, wait);
}

void fnic_get_res_counts(struct fnic *fnic)
{
	fnic->wq_count = vnic_dev_get_res_count(fnic->vdev, RES_TYPE_WQ);
	fnic->raw_wq_count = fnic->wq_count - 1;
	fnic->wq_copy_count = fnic->wq_count - fnic->raw_wq_count;
	fnic->rq_count = vnic_dev_get_res_count(fnic->vdev, RES_TYPE_RQ);
	fnic->cq_count = vnic_dev_get_res_count(fnic->vdev, RES_TYPE_CQ);
	fnic->intr_count = vnic_dev_get_res_count(fnic->vdev,
		RES_TYPE_INTR_CTRL);
}

void fnic_free_vnic_resources(struct fnic *fnic)
{
	unsigned int i;

	for (i = 0; i < fnic->raw_wq_count; i++)
		vnic_wq_free(&fnic->wq[i]);

	for (i = 0; i < fnic->wq_copy_count; i++)
		vnic_wq_copy_free(&fnic->wq_copy[i]);

	for (i = 0; i < fnic->rq_count; i++)
		vnic_rq_free(&fnic->rq[i]);

	for (i = 0; i < fnic->cq_count; i++)
		vnic_cq_free(&fnic->cq[i]);

	for (i = 0; i < fnic->intr_count; i++)
		vnic_intr_free(&fnic->intr[i]);
}

int fnic_alloc_vnic_resources(struct fnic *fnic)
{
	enum vnic_dev_intr_mode intr_mode;
	unsigned int mask_on_assertion;
	unsigned int interrupt_offset;
	unsigned int error_interrupt_enable;
	unsigned int error_interrupt_offset;
	unsigned int i, cq_index;
	unsigned int wq_copy_cq_desc_count;
	int err;

	intr_mode = vnic_dev_get_intr_mode(fnic->vdev);

	shost_printk(KERN_INFO, fnic->lport->host, "vNIC interrupt mode: %s\n",
		     intr_mode == VNIC_DEV_INTR_MODE_INTX ? "legacy PCI INTx" :
		     intr_mode == VNIC_DEV_INTR_MODE_MSI ? "MSI" :
		     intr_mode == VNIC_DEV_INTR_MODE_MSIX ?
		     "MSI-X" : "unknown");

	shost_printk(KERN_INFO, fnic->lport->host, "vNIC resources avail: "
		     "wq %d cp_wq %d raw_wq %d rq %d cq %d intr %d\n",
		     fnic->wq_count, fnic->wq_copy_count, fnic->raw_wq_count,
		     fnic->rq_count, fnic->cq_count, fnic->intr_count);

	/* Allocate Raw WQ used for FCS frames */
	for (i = 0; i < fnic->raw_wq_count; i++) {
		err = vnic_wq_alloc(fnic->vdev, &fnic->wq[i], i,
			fnic->config.wq_enet_desc_count,
			sizeof(struct wq_enet_desc));
		if (err)
			goto err_out_cleanup;
	}

	/* Allocate Copy WQs used for SCSI IOs */
	for (i = 0; i < fnic->wq_copy_count; i++) {
		err = vnic_wq_copy_alloc(fnic->vdev, &fnic->wq_copy[i],
			(fnic->raw_wq_count + i),
			fnic->config.wq_copy_desc_count,
			sizeof(struct fcpio_host_req));
		if (err)
			goto err_out_cleanup;
	}

	/* RQ for receiving FCS frames */
	for (i = 0; i < fnic->rq_count; i++) {
		err = vnic_rq_alloc(fnic->vdev, &fnic->rq[i], i,
			fnic->config.rq_desc_count,
			sizeof(struct rq_enet_desc));
		if (err)
			goto err_out_cleanup;
	}

	/* CQ for each RQ */
	for (i = 0; i < fnic->rq_count; i++) {
		cq_index = i;
		err = vnic_cq_alloc(fnic->vdev,
			&fnic->cq[cq_index], cq_index,
			fnic->config.rq_desc_count,
			sizeof(struct cq_enet_rq_desc));
		if (err)
			goto err_out_cleanup;
	}

	/* CQ for each WQ */
	for (i = 0; i < fnic->raw_wq_count; i++) {
		cq_index = fnic->rq_count + i;
		err = vnic_cq_alloc(fnic->vdev, &fnic->cq[cq_index], cq_index,
			fnic->config.wq_enet_desc_count,
			sizeof(struct cq_enet_wq_desc));
		if (err)
			goto err_out_cleanup;
	}

	/* CQ for each COPY WQ */
	wq_copy_cq_desc_count = (fnic->config.wq_copy_desc_count * 3);
	for (i = 0; i < fnic->wq_copy_count; i++) {
		cq_index = fnic->raw_wq_count + fnic->rq_count + i;
		err = vnic_cq_alloc(fnic->vdev, &fnic->cq[cq_index],
			cq_index,
			wq_copy_cq_desc_count,
			sizeof(struct fcpio_fw_req));
		if (err)
			goto err_out_cleanup;
	}

	for (i = 0; i < fnic->intr_count; i++) {
		err = vnic_intr_alloc(fnic->vdev, &fnic->intr[i], i);
		if (err)
			goto err_out_cleanup;
	}

	fnic->legacy_pba = vnic_dev_get_res(fnic->vdev,
				RES_TYPE_INTR_PBA_LEGACY, 0);

	if (!fnic->legacy_pba && intr_mode == VNIC_DEV_INTR_MODE_INTX) {
		shost_printk(KERN_ERR, fnic->lport->host,
			     "Failed to hook legacy pba resource\n");
		err = -ENODEV;
		goto err_out_cleanup;
	}

	/*
	 * Init RQ/WQ resources.
	 *
	 * RQ[0 to n-1] point to CQ[0 to n-1]
	 * WQ[0 to m-1] point to CQ[n to n+m-1]
	 * WQ_COPY[0 to k-1] points to CQ[n+m to n+m+k-1]
	 *
	 * Note for copy wq we always initialize with cq_index = 0
	 *
	 * Error interrupt is not enabled for MSI.
	 */

	switch (intr_mode) {
	case VNIC_DEV_INTR_MODE_INTX:
	case VNIC_DEV_INTR_MODE_MSIX:
		error_interrupt_enable = 1;
		error_interrupt_offset = fnic->err_intr_offset;
		break;
	default:
		error_interrupt_enable = 0;
		error_interrupt_offset = 0;
		break;
	}

	for (i = 0; i < fnic->rq_count; i++) {
		cq_index = i;
		vnic_rq_init(&fnic->rq[i],
			     cq_index,
			     error_interrupt_enable,
			     error_interrupt_offset);
	}

	for (i = 0; i < fnic->raw_wq_count; i++) {
		cq_index = i + fnic->rq_count;
		vnic_wq_init(&fnic->wq[i],
			     cq_index,
			     error_interrupt_enable,
			     error_interrupt_offset);
	}

	for (i = 0; i < fnic->wq_copy_count; i++) {
		vnic_wq_copy_init(&fnic->wq_copy[i],
				  0 /* cq_index 0 - always */,
				  error_interrupt_enable,
				  error_interrupt_offset);
	}

	for (i = 0; i < fnic->cq_count; i++) {

		switch (intr_mode) {
		case VNIC_DEV_INTR_MODE_MSIX:
			interrupt_offset = i;
			break;
		default:
			interrupt_offset = 0;
			break;
		}

		vnic_cq_init(&fnic->cq[i],
			0 /* flow_control_enable */,
			1 /* color_enable */,
			0 /* cq_head */,
			0 /* cq_tail */,
			1 /* cq_tail_color */,
			1 /* interrupt_enable */,
			1 /* cq_entry_enable */,
			0 /* cq_message_enable */,
			interrupt_offset,
			0 /* cq_message_addr */);
	}

	/*
	 * Init INTR resources
	 *
	 * mask_on_assertion is not used for INTx due to the level-
	 * triggered nature of INTx
	 */

	switch (intr_mode) {
	case VNIC_DEV_INTR_MODE_MSI:
	case VNIC_DEV_INTR_MODE_MSIX:
		mask_on_assertion = 1;
		break;
	default:
		mask_on_assertion = 0;
		break;
	}

	for (i = 0; i < fnic->intr_count; i++) {
		vnic_intr_init(&fnic->intr[i],
			fnic->config.intr_timer,
			fnic->config.intr_timer_type,
			mask_on_assertion);
	}

	/* init the stats memory by making the first call here */
	err = vnic_dev_stats_dump(fnic->vdev, &fnic->stats);
	if (err) {
		shost_printk(KERN_ERR, fnic->lport->host,
			     "vnic_dev_stats_dump failed - x%x\n", err);
		goto err_out_cleanup;
	}

	/* Clear LIF stats */
	vnic_dev_stats_clear(fnic->vdev);

	return 0;

err_out_cleanup:
	fnic_free_vnic_resources(fnic);

	return err;
}
Commit	Line	Data
5df6d737 AJ	1	/*
	2	* Copyright 2008 Cisco Systems, Inc. All rights reserved.
	3	* Copyright 2007 Nuova Systems, Inc. All rights reserved.
	4	*
	5	* This program is free software; you may redistribute it and/or modify
	6	* it under the terms of the GNU General Public License as published by
	7	* the Free Software Foundation; version 2 of the License.
	8	*
	9	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
	10	* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
	11	* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
	12	* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
	13	* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
	14	* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
	15	* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
	16	* SOFTWARE.
	17	*/
	18	#include <linux/errno.h>
	19	#include <linux/types.h>
	20	#include <linux/pci.h>
	21	#include "wq_enet_desc.h"
	22	#include "rq_enet_desc.h"
	23	#include "cq_enet_desc.h"
	24	#include "vnic_resource.h"
	25	#include "vnic_dev.h"
	26	#include "vnic_wq.h"
	27	#include "vnic_rq.h"
	28	#include "vnic_cq.h"
	29	#include "vnic_intr.h"
	30	#include "vnic_stats.h"
	31	#include "vnic_nic.h"
	32	#include "fnic.h"
	33
	34	int fnic_get_vnic_config(struct fnic *fnic)
	35	{
	36	struct vnic_fc_config *c = &fnic->config;
	37	int err;
	38
	39	#define GET_CONFIG(m) \
	40	do { \
	41	err = vnic_dev_spec(fnic->vdev, \
	42	offsetof(struct vnic_fc_config, m), \
	43	sizeof(c->m), &c->m); \
	44	if (err) { \
	45	shost_printk(KERN_ERR, fnic->lport->host, \
	46	"Error getting %s, %d\n", #m, \
	47	err); \
	48	return err; \
	49	} \
	50	} while (0);
	51
	52	GET_CONFIG(node_wwn);
	53	GET_CONFIG(port_wwn);
	54	GET_CONFIG(wq_enet_desc_count);
	55	GET_CONFIG(wq_copy_desc_count);
	56	GET_CONFIG(rq_desc_count);
	57	GET_CONFIG(maxdatafieldsize);
	58	GET_CONFIG(ed_tov);
	59	GET_CONFIG(ra_tov);
	60	GET_CONFIG(intr_timer);
	61	GET_CONFIG(intr_timer_type);
	62	GET_CONFIG(flags);
	63	GET_CONFIG(flogi_retries);
	64	GET_CONFIG(flogi_timeout);
65	GET_CONFIG(plogi_retries);
66	GET_CONFIG(plogi_timeout);
67	GET_CONFIG(io_throttle_count);
68	GET_CONFIG(link_down_timeout);
69	GET_CONFIG(port_down_timeout);
70	GET_CONFIG(port_down_io_retries);
71	GET_CONFIG(luns_per_tgt);
72
73	c->wq_enet_desc_count =
74	min_t(u32, VNIC_FNIC_WQ_DESCS_MAX,
75	max_t(u32, VNIC_FNIC_WQ_DESCS_MIN,
76	c->wq_enet_desc_count));
77	c->wq_enet_desc_count = ALIGN(c->wq_enet_desc_count, 16);
78
79	c->wq_copy_desc_count =
80	min_t(u32, VNIC_FNIC_WQ_COPY_DESCS_MAX,
81	max_t(u32, VNIC_FNIC_WQ_COPY_DESCS_MIN,
82	c->wq_copy_desc_count));
83	c->wq_copy_desc_count = ALIGN(c->wq_copy_desc_count, 16);
84
85	c->rq_desc_count =
86	min_t(u32, VNIC_FNIC_RQ_DESCS_MAX,
87	max_t(u32, VNIC_FNIC_RQ_DESCS_MIN,
88	c->rq_desc_count));
89	c->rq_desc_count = ALIGN(c->rq_desc_count, 16);
90
91	c->maxdatafieldsize =
92	min_t(u16, VNIC_FNIC_MAXDATAFIELDSIZE_MAX,
93	max_t(u16, VNIC_FNIC_MAXDATAFIELDSIZE_MIN,
94	c->maxdatafieldsize));
95	c->ed_tov =
96	min_t(u32, VNIC_FNIC_EDTOV_MAX,
97	max_t(u32, VNIC_FNIC_EDTOV_MIN,
98	c->ed_tov));
99
100	c->ra_tov =
101	min_t(u32, VNIC_FNIC_RATOV_MAX,
102	max_t(u32, VNIC_FNIC_RATOV_MIN,
103	c->ra_tov));
104
105	c->flogi_retries =
106	min_t(u32, VNIC_FNIC_FLOGI_RETRIES_MAX, c->flogi_retries);
107
108	c->flogi_timeout =
109	min_t(u32, VNIC_FNIC_FLOGI_TIMEOUT_MAX,
110	max_t(u32, VNIC_FNIC_FLOGI_TIMEOUT_MIN,
111	c->flogi_timeout));
112
113	c->plogi_retries =
114	min_t(u32, VNIC_FNIC_PLOGI_RETRIES_MAX, c->plogi_retries);
115
116	c->plogi_timeout =
117	min_t(u32, VNIC_FNIC_PLOGI_TIMEOUT_MAX,
118	max_t(u32, VNIC_FNIC_PLOGI_TIMEOUT_MIN,
119	c->plogi_timeout));
120
121	c->io_throttle_count =
122	min_t(u32, VNIC_FNIC_IO_THROTTLE_COUNT_MAX,
123	max_t(u32, VNIC_FNIC_IO_THROTTLE_COUNT_MIN,
124	c->io_throttle_count));
125
126	c->link_down_timeout =
127	min_t(u32, VNIC_FNIC_LINK_DOWN_TIMEOUT_MAX,
128	c->link_down_timeout);
129
130	c->port_down_timeout =
131	min_t(u32, VNIC_FNIC_PORT_DOWN_TIMEOUT_MAX,
132	c->port_down_timeout);
133
134	c->port_down_io_retries =
135	min_t(u32, VNIC_FNIC_PORT_DOWN_IO_RETRIES_MAX,
136	c->port_down_io_retries);
137
138	c->luns_per_tgt =
139	min_t(u32, VNIC_FNIC_LUNS_PER_TARGET_MAX,
140	max_t(u32, VNIC_FNIC_LUNS_PER_TARGET_MIN,
141	c->luns_per_tgt));
142
143	c->intr_timer = min_t(u16, VNIC_INTR_TIMER_MAX, c->intr_timer);
144	c->intr_timer_type = c->intr_timer_type;
145
146	shost_printk(KERN_INFO, fnic->lport->host,
78112e55	147	"vNIC MAC addr %pM "
5df6d737	148	"wq/wq_copy/rq %d/%d/%d\n",
78112e55	149	fnic->ctlr.ctl_src_addr,
5df6d737 AJ	150	c->wq_enet_desc_count, c->wq_copy_desc_count,
	151	c->rq_desc_count);
	152	shost_printk(KERN_INFO, fnic->lport->host,
	153	"vNIC node wwn %llx port wwn %llx\n",
	154	c->node_wwn, c->port_wwn);
	155	shost_printk(KERN_INFO, fnic->lport->host,
	156	"vNIC ed_tov %d ra_tov %d\n",
	157	c->ed_tov, c->ra_tov);
	158	shost_printk(KERN_INFO, fnic->lport->host,
	159	"vNIC mtu %d intr timer %d\n",
	160	c->maxdatafieldsize, c->intr_timer);
	161	shost_printk(KERN_INFO, fnic->lport->host,
	162	"vNIC flags 0x%x luns per tgt %d\n",
	163	c->flags, c->luns_per_tgt);
	164	shost_printk(KERN_INFO, fnic->lport->host,
	165	"vNIC flogi_retries %d flogi timeout %d\n",
	166	c->flogi_retries, c->flogi_timeout);
	167	shost_printk(KERN_INFO, fnic->lport->host,
	168	"vNIC plogi retries %d plogi timeout %d\n",
	169	c->plogi_retries, c->plogi_timeout);
	170	shost_printk(KERN_INFO, fnic->lport->host,
	171	"vNIC io throttle count %d link dn timeout %d\n",
	172	c->io_throttle_count, c->link_down_timeout);
	173	shost_printk(KERN_INFO, fnic->lport->host,
	174	"vNIC port dn io retries %d port dn timeout %d\n",
	175	c->port_down_io_retries, c->port_down_timeout);
	176
	177	return 0;
	178	}
	179
	180	int fnic_set_nic_config(struct fnic *fnic, u8 rss_default_cpu,
	181	u8 rss_hash_type,
	182	u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable,
	183	u8 tso_ipid_split_en, u8 ig_vlan_strip_en)
	184	{
	185	u64 a0, a1;
	186	u32 nic_cfg;
	187	int wait = 1000;
	188
	189	vnic_set_nic_cfg(&nic_cfg, rss_default_cpu,
	190	rss_hash_type, rss_hash_bits, rss_base_cpu,
	191	rss_enable, tso_ipid_split_en, ig_vlan_strip_en);
	192
	193	a0 = nic_cfg;
	194	a1 = 0;
	195
	196	return vnic_dev_cmd(fnic->vdev, CMD_NIC_CFG, &a0, &a1, wait);
	197	}
	198
	199	void fnic_get_res_counts(struct fnic *fnic)
	200	{
	201	fnic->wq_count = vnic_dev_get_res_count(fnic->vdev, RES_TYPE_WQ);
	202	fnic->raw_wq_count = fnic->wq_count - 1;
	203	fnic->wq_copy_count = fnic->wq_count - fnic->raw_wq_count;
	204	fnic->rq_count = vnic_dev_get_res_count(fnic->vdev, RES_TYPE_RQ);
	205	fnic->cq_count = vnic_dev_get_res_count(fnic->vdev, RES_TYPE_CQ);
	206	fnic->intr_count = vnic_dev_get_res_count(fnic->vdev,
	207	RES_TYPE_INTR_CTRL);
	208	}
	209
	210	void fnic_free_vnic_resources(struct fnic *fnic)
	211	{
	212	unsigned int i;
	213
214	for (i = 0; i < fnic->raw_wq_count; i++)
215	vnic_wq_free(&fnic->wq[i]);
216
217	for (i = 0; i < fnic->wq_copy_count; i++)
218	vnic_wq_copy_free(&fnic->wq_copy[i]);
219
220	for (i = 0; i < fnic->rq_count; i++)
221	vnic_rq_free(&fnic->rq[i]);
222
223	for (i = 0; i < fnic->cq_count; i++)
224	vnic_cq_free(&fnic->cq[i]);
225
226	for (i = 0; i < fnic->intr_count; i++)
227	vnic_intr_free(&fnic->intr[i]);
228	}
229
230	int fnic_alloc_vnic_resources(struct fnic *fnic)
231	{
232	enum vnic_dev_intr_mode intr_mode;
233	unsigned int mask_on_assertion;
234	unsigned int interrupt_offset;
235	unsigned int error_interrupt_enable;
236	unsigned int error_interrupt_offset;
237	unsigned int i, cq_index;
238	unsigned int wq_copy_cq_desc_count;
239	int err;
240
241	intr_mode = vnic_dev_get_intr_mode(fnic->vdev);
242
243	shost_printk(KERN_INFO, fnic->lport->host, "vNIC interrupt mode: %s\n",
244	intr_mode == VNIC_DEV_INTR_MODE_INTX ? "legacy PCI INTx" :
245	intr_mode == VNIC_DEV_INTR_MODE_MSI ? "MSI" :
246	intr_mode == VNIC_DEV_INTR_MODE_MSIX ?
247	"MSI-X" : "unknown");
248
249	shost_printk(KERN_INFO, fnic->lport->host, "vNIC resources avail: "
250	"wq %d cp_wq %d raw_wq %d rq %d cq %d intr %d\n",
251	fnic->wq_count, fnic->wq_copy_count, fnic->raw_wq_count,
252	fnic->rq_count, fnic->cq_count, fnic->intr_count);
253
254	/* Allocate Raw WQ used for FCS frames */
255	for (i = 0; i < fnic->raw_wq_count; i++) {
256	err = vnic_wq_alloc(fnic->vdev, &fnic->wq[i], i,
257	fnic->config.wq_enet_desc_count,
258	sizeof(struct wq_enet_desc));
259	if (err)
260	goto err_out_cleanup;
261	}
262
263	/* Allocate Copy WQs used for SCSI IOs */
264	for (i = 0; i < fnic->wq_copy_count; i++) {
265	err = vnic_wq_copy_alloc(fnic->vdev, &fnic->wq_copy[i],
266	(fnic->raw_wq_count + i),
267	fnic->config.wq_copy_desc_count,
268	sizeof(struct fcpio_host_req));
269	if (err)
270	goto err_out_cleanup;
271	}
272
273	/* RQ for receiving FCS frames */
274	for (i = 0; i < fnic->rq_count; i++) {
275	err = vnic_rq_alloc(fnic->vdev, &fnic->rq[i], i,
276	fnic->config.rq_desc_count,
277	sizeof(struct rq_enet_desc));
278	if (err)
279	goto err_out_cleanup;
280	}
281
282	/* CQ for each RQ */
283	for (i = 0; i < fnic->rq_count; i++) {
284	cq_index = i;
285	err = vnic_cq_alloc(fnic->vdev,
286	&fnic->cq[cq_index], cq_index,
287	fnic->config.rq_desc_count,
288	sizeof(struct cq_enet_rq_desc));
289	if (err)
290	goto err_out_cleanup;
291	}
292
293	/* CQ for each WQ */
294	for (i = 0; i < fnic->raw_wq_count; i++) {
295	cq_index = fnic->rq_count + i;
296	err = vnic_cq_alloc(fnic->vdev, &fnic->cq[cq_index], cq_index,
297	fnic->config.wq_enet_desc_count,
298	sizeof(struct cq_enet_wq_desc));
299	if (err)
300	goto err_out_cleanup;
301	}
302
303	/* CQ for each COPY WQ */
304	wq_copy_cq_desc_count = (fnic->config.wq_copy_desc_count * 3);
305	for (i = 0; i < fnic->wq_copy_count; i++) {
306	cq_index = fnic->raw_wq_count + fnic->rq_count + i;
307	err = vnic_cq_alloc(fnic->vdev, &fnic->cq[cq_index],
308	cq_index,
309	wq_copy_cq_desc_count,
310	sizeof(struct fcpio_fw_req));
311	if (err)
312	goto err_out_cleanup;
313	}
314
315	for (i = 0; i < fnic->intr_count; i++) {
316	err = vnic_intr_alloc(fnic->vdev, &fnic->intr[i], i);
317	if (err)
318	goto err_out_cleanup;
319	}
320
321	fnic->legacy_pba = vnic_dev_get_res(fnic->vdev,
322	RES_TYPE_INTR_PBA_LEGACY, 0);
323
324	if (!fnic->legacy_pba && intr_mode == VNIC_DEV_INTR_MODE_INTX) {
325	shost_printk(KERN_ERR, fnic->lport->host,
326	"Failed to hook legacy pba resource\n");
327	err = -ENODEV;
328	goto err_out_cleanup;
329	}
330
331	/*
332	* Init RQ/WQ resources.
333	*
334	* RQ[0 to n-1] point to CQ[0 to n-1]
335	* WQ[0 to m-1] point to CQ[n to n+m-1]
336	* WQ_COPY[0 to k-1] points to CQ[n+m to n+m+k-1]
337	*
338	* Note for copy wq we always initialize with cq_index = 0
339	*
340	* Error interrupt is not enabled for MSI.
341	*/
342
343	switch (intr_mode) {
344	case VNIC_DEV_INTR_MODE_INTX:
345	case VNIC_DEV_INTR_MODE_MSIX:
346	error_interrupt_enable = 1;
347	error_interrupt_offset = fnic->err_intr_offset;
348	break;
349	default:
350	error_interrupt_enable = 0;
351	error_interrupt_offset = 0;
352	break;
353	}
354
355	for (i = 0; i < fnic->rq_count; i++) {
356	cq_index = i;
357	vnic_rq_init(&fnic->rq[i],
358	cq_index,
359	error_interrupt_enable,
360	error_interrupt_offset);
361	}
362
363	for (i = 0; i < fnic->raw_wq_count; i++) {
364	cq_index = i + fnic->rq_count;
365	vnic_wq_init(&fnic->wq[i],
366	cq_index,
367	error_interrupt_enable,
368	error_interrupt_offset);
369	}
370
371	for (i = 0; i < fnic->wq_copy_count; i++) {
372	vnic_wq_copy_init(&fnic->wq_copy[i],
373	0 /* cq_index 0 - always */,
374	error_interrupt_enable,
375	error_interrupt_offset);
376	}
377
378	for (i = 0; i < fnic->cq_count; i++) {
379
380	switch (intr_mode) {
381	case VNIC_DEV_INTR_MODE_MSIX:
382	interrupt_offset = i;
383	break;
384	default:
385	interrupt_offset = 0;
386	break;
387	}
388
389	vnic_cq_init(&fnic->cq[i],
390	0 /* flow_control_enable */,
391	1 /* color_enable */,
392	0 /* cq_head */,
393	0 /* cq_tail */,
394	1 /* cq_tail_color */,
395	1 /* interrupt_enable */,
396	1 /* cq_entry_enable */,
397	0 /* cq_message_enable */,
398	interrupt_offset,
399	0 /* cq_message_addr */);
400	}
401
402	/*
403	* Init INTR resources
404	*
405	* mask_on_assertion is not used for INTx due to the level-
406	* triggered nature of INTx
407	*/
408
409	switch (intr_mode) {
410	case VNIC_DEV_INTR_MODE_MSI:
411	case VNIC_DEV_INTR_MODE_MSIX:
412	mask_on_assertion = 1;
413	break;
414	default:
415	mask_on_assertion = 0;
416	break;
417	}
418
419	for (i = 0; i < fnic->intr_count; i++) {
420	vnic_intr_init(&fnic->intr[i],
421	fnic->config.intr_timer,
422	fnic->config.intr_timer_type,
423	mask_on_assertion);
424	}
425
426	/* init the stats memory by making the first call here */
427	err = vnic_dev_stats_dump(fnic->vdev, &fnic->stats);
428	if (err) {
429	shost_printk(KERN_ERR, fnic->lport->host,
430	"vnic_dev_stats_dump failed - x%x\n", err);
431	goto err_out_cleanup;
432	}
433
434	/* Clear LIF stats */
435	vnic_dev_stats_clear(fnic->vdev);
436
437	return 0;
438
439	err_out_cleanup:
440	fnic_free_vnic_resources(fnic);
441
442	return err;
443	}