444 lines
12 KiB
C
444 lines
12 KiB
C
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/*
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* Copyright 2008 Cisco Systems, Inc. All rights reserved.
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* Copyright 2007 Nuova Systems, Inc. All rights reserved.
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*
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* This program is free software; you may redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include <linux/errno.h>
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#include <linux/types.h>
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#include <linux/pci.h>
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#include "wq_enet_desc.h"
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#include "rq_enet_desc.h"
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#include "cq_enet_desc.h"
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#include "vnic_resource.h"
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#include "vnic_dev.h"
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#include "vnic_wq.h"
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#include "vnic_rq.h"
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#include "vnic_cq.h"
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#include "vnic_intr.h"
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#include "vnic_stats.h"
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#include "vnic_nic.h"
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#include "fnic.h"
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int fnic_get_vnic_config(struct fnic *fnic)
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{
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struct vnic_fc_config *c = &fnic->config;
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int err;
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#define GET_CONFIG(m) \
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do { \
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err = vnic_dev_spec(fnic->vdev, \
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offsetof(struct vnic_fc_config, m), \
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sizeof(c->m), &c->m); \
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if (err) { \
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shost_printk(KERN_ERR, fnic->lport->host, \
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"Error getting %s, %d\n", #m, \
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err); \
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return err; \
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} \
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} while (0);
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GET_CONFIG(node_wwn);
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GET_CONFIG(port_wwn);
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GET_CONFIG(wq_enet_desc_count);
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GET_CONFIG(wq_copy_desc_count);
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GET_CONFIG(rq_desc_count);
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GET_CONFIG(maxdatafieldsize);
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GET_CONFIG(ed_tov);
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GET_CONFIG(ra_tov);
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GET_CONFIG(intr_timer);
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GET_CONFIG(intr_timer_type);
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GET_CONFIG(flags);
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GET_CONFIG(flogi_retries);
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GET_CONFIG(flogi_timeout);
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GET_CONFIG(plogi_retries);
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GET_CONFIG(plogi_timeout);
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GET_CONFIG(io_throttle_count);
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GET_CONFIG(link_down_timeout);
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GET_CONFIG(port_down_timeout);
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GET_CONFIG(port_down_io_retries);
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GET_CONFIG(luns_per_tgt);
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c->wq_enet_desc_count =
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min_t(u32, VNIC_FNIC_WQ_DESCS_MAX,
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max_t(u32, VNIC_FNIC_WQ_DESCS_MIN,
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c->wq_enet_desc_count));
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c->wq_enet_desc_count = ALIGN(c->wq_enet_desc_count, 16);
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c->wq_copy_desc_count =
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min_t(u32, VNIC_FNIC_WQ_COPY_DESCS_MAX,
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max_t(u32, VNIC_FNIC_WQ_COPY_DESCS_MIN,
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c->wq_copy_desc_count));
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c->wq_copy_desc_count = ALIGN(c->wq_copy_desc_count, 16);
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c->rq_desc_count =
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min_t(u32, VNIC_FNIC_RQ_DESCS_MAX,
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max_t(u32, VNIC_FNIC_RQ_DESCS_MIN,
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c->rq_desc_count));
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c->rq_desc_count = ALIGN(c->rq_desc_count, 16);
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c->maxdatafieldsize =
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min_t(u16, VNIC_FNIC_MAXDATAFIELDSIZE_MAX,
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max_t(u16, VNIC_FNIC_MAXDATAFIELDSIZE_MIN,
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c->maxdatafieldsize));
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c->ed_tov =
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min_t(u32, VNIC_FNIC_EDTOV_MAX,
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max_t(u32, VNIC_FNIC_EDTOV_MIN,
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c->ed_tov));
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c->ra_tov =
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min_t(u32, VNIC_FNIC_RATOV_MAX,
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max_t(u32, VNIC_FNIC_RATOV_MIN,
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c->ra_tov));
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c->flogi_retries =
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min_t(u32, VNIC_FNIC_FLOGI_RETRIES_MAX, c->flogi_retries);
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c->flogi_timeout =
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min_t(u32, VNIC_FNIC_FLOGI_TIMEOUT_MAX,
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max_t(u32, VNIC_FNIC_FLOGI_TIMEOUT_MIN,
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c->flogi_timeout));
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c->plogi_retries =
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min_t(u32, VNIC_FNIC_PLOGI_RETRIES_MAX, c->plogi_retries);
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c->plogi_timeout =
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min_t(u32, VNIC_FNIC_PLOGI_TIMEOUT_MAX,
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max_t(u32, VNIC_FNIC_PLOGI_TIMEOUT_MIN,
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c->plogi_timeout));
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c->io_throttle_count =
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min_t(u32, VNIC_FNIC_IO_THROTTLE_COUNT_MAX,
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max_t(u32, VNIC_FNIC_IO_THROTTLE_COUNT_MIN,
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c->io_throttle_count));
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c->link_down_timeout =
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min_t(u32, VNIC_FNIC_LINK_DOWN_TIMEOUT_MAX,
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c->link_down_timeout);
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c->port_down_timeout =
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min_t(u32, VNIC_FNIC_PORT_DOWN_TIMEOUT_MAX,
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c->port_down_timeout);
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c->port_down_io_retries =
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min_t(u32, VNIC_FNIC_PORT_DOWN_IO_RETRIES_MAX,
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c->port_down_io_retries);
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c->luns_per_tgt =
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min_t(u32, VNIC_FNIC_LUNS_PER_TARGET_MAX,
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max_t(u32, VNIC_FNIC_LUNS_PER_TARGET_MIN,
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c->luns_per_tgt));
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c->intr_timer = min_t(u16, VNIC_INTR_TIMER_MAX, c->intr_timer);
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c->intr_timer_type = c->intr_timer_type;
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shost_printk(KERN_INFO, fnic->lport->host,
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"vNIC MAC addr %pM "
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"wq/wq_copy/rq %d/%d/%d\n",
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fnic->ctlr.ctl_src_addr,
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c->wq_enet_desc_count, c->wq_copy_desc_count,
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c->rq_desc_count);
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shost_printk(KERN_INFO, fnic->lport->host,
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"vNIC node wwn %llx port wwn %llx\n",
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c->node_wwn, c->port_wwn);
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shost_printk(KERN_INFO, fnic->lport->host,
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"vNIC ed_tov %d ra_tov %d\n",
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c->ed_tov, c->ra_tov);
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shost_printk(KERN_INFO, fnic->lport->host,
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"vNIC mtu %d intr timer %d\n",
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c->maxdatafieldsize, c->intr_timer);
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shost_printk(KERN_INFO, fnic->lport->host,
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"vNIC flags 0x%x luns per tgt %d\n",
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c->flags, c->luns_per_tgt);
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shost_printk(KERN_INFO, fnic->lport->host,
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"vNIC flogi_retries %d flogi timeout %d\n",
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c->flogi_retries, c->flogi_timeout);
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shost_printk(KERN_INFO, fnic->lport->host,
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"vNIC plogi retries %d plogi timeout %d\n",
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c->plogi_retries, c->plogi_timeout);
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shost_printk(KERN_INFO, fnic->lport->host,
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"vNIC io throttle count %d link dn timeout %d\n",
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c->io_throttle_count, c->link_down_timeout);
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shost_printk(KERN_INFO, fnic->lport->host,
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"vNIC port dn io retries %d port dn timeout %d\n",
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c->port_down_io_retries, c->port_down_timeout);
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return 0;
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}
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int fnic_set_nic_config(struct fnic *fnic, u8 rss_default_cpu,
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u8 rss_hash_type,
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u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable,
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u8 tso_ipid_split_en, u8 ig_vlan_strip_en)
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{
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u64 a0, a1;
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u32 nic_cfg;
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int wait = 1000;
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vnic_set_nic_cfg(&nic_cfg, rss_default_cpu,
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rss_hash_type, rss_hash_bits, rss_base_cpu,
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rss_enable, tso_ipid_split_en, ig_vlan_strip_en);
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a0 = nic_cfg;
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a1 = 0;
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return vnic_dev_cmd(fnic->vdev, CMD_NIC_CFG, &a0, &a1, wait);
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}
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void fnic_get_res_counts(struct fnic *fnic)
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{
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fnic->wq_count = vnic_dev_get_res_count(fnic->vdev, RES_TYPE_WQ);
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fnic->raw_wq_count = fnic->wq_count - 1;
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fnic->wq_copy_count = fnic->wq_count - fnic->raw_wq_count;
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fnic->rq_count = vnic_dev_get_res_count(fnic->vdev, RES_TYPE_RQ);
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fnic->cq_count = vnic_dev_get_res_count(fnic->vdev, RES_TYPE_CQ);
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fnic->intr_count = vnic_dev_get_res_count(fnic->vdev,
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RES_TYPE_INTR_CTRL);
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}
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void fnic_free_vnic_resources(struct fnic *fnic)
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{
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unsigned int i;
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for (i = 0; i < fnic->raw_wq_count; i++)
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vnic_wq_free(&fnic->wq[i]);
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for (i = 0; i < fnic->wq_copy_count; i++)
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vnic_wq_copy_free(&fnic->wq_copy[i]);
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for (i = 0; i < fnic->rq_count; i++)
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vnic_rq_free(&fnic->rq[i]);
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for (i = 0; i < fnic->cq_count; i++)
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vnic_cq_free(&fnic->cq[i]);
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for (i = 0; i < fnic->intr_count; i++)
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vnic_intr_free(&fnic->intr[i]);
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}
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int fnic_alloc_vnic_resources(struct fnic *fnic)
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{
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enum vnic_dev_intr_mode intr_mode;
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unsigned int mask_on_assertion;
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unsigned int interrupt_offset;
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unsigned int error_interrupt_enable;
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unsigned int error_interrupt_offset;
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unsigned int i, cq_index;
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unsigned int wq_copy_cq_desc_count;
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int err;
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intr_mode = vnic_dev_get_intr_mode(fnic->vdev);
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shost_printk(KERN_INFO, fnic->lport->host, "vNIC interrupt mode: %s\n",
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intr_mode == VNIC_DEV_INTR_MODE_INTX ? "legacy PCI INTx" :
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intr_mode == VNIC_DEV_INTR_MODE_MSI ? "MSI" :
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intr_mode == VNIC_DEV_INTR_MODE_MSIX ?
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"MSI-X" : "unknown");
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shost_printk(KERN_INFO, fnic->lport->host, "vNIC resources avail: "
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"wq %d cp_wq %d raw_wq %d rq %d cq %d intr %d\n",
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fnic->wq_count, fnic->wq_copy_count, fnic->raw_wq_count,
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fnic->rq_count, fnic->cq_count, fnic->intr_count);
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/* Allocate Raw WQ used for FCS frames */
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for (i = 0; i < fnic->raw_wq_count; i++) {
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err = vnic_wq_alloc(fnic->vdev, &fnic->wq[i], i,
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fnic->config.wq_enet_desc_count,
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sizeof(struct wq_enet_desc));
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if (err)
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goto err_out_cleanup;
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}
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/* Allocate Copy WQs used for SCSI IOs */
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for (i = 0; i < fnic->wq_copy_count; i++) {
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err = vnic_wq_copy_alloc(fnic->vdev, &fnic->wq_copy[i],
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(fnic->raw_wq_count + i),
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fnic->config.wq_copy_desc_count,
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sizeof(struct fcpio_host_req));
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if (err)
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goto err_out_cleanup;
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}
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/* RQ for receiving FCS frames */
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for (i = 0; i < fnic->rq_count; i++) {
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err = vnic_rq_alloc(fnic->vdev, &fnic->rq[i], i,
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fnic->config.rq_desc_count,
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sizeof(struct rq_enet_desc));
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if (err)
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goto err_out_cleanup;
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}
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/* CQ for each RQ */
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for (i = 0; i < fnic->rq_count; i++) {
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cq_index = i;
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err = vnic_cq_alloc(fnic->vdev,
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&fnic->cq[cq_index], cq_index,
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fnic->config.rq_desc_count,
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sizeof(struct cq_enet_rq_desc));
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if (err)
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goto err_out_cleanup;
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}
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/* CQ for each WQ */
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for (i = 0; i < fnic->raw_wq_count; i++) {
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cq_index = fnic->rq_count + i;
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err = vnic_cq_alloc(fnic->vdev, &fnic->cq[cq_index], cq_index,
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fnic->config.wq_enet_desc_count,
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sizeof(struct cq_enet_wq_desc));
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if (err)
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goto err_out_cleanup;
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}
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/* CQ for each COPY WQ */
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wq_copy_cq_desc_count = (fnic->config.wq_copy_desc_count * 3);
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for (i = 0; i < fnic->wq_copy_count; i++) {
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cq_index = fnic->raw_wq_count + fnic->rq_count + i;
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err = vnic_cq_alloc(fnic->vdev, &fnic->cq[cq_index],
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cq_index,
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wq_copy_cq_desc_count,
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sizeof(struct fcpio_fw_req));
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if (err)
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goto err_out_cleanup;
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}
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for (i = 0; i < fnic->intr_count; i++) {
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err = vnic_intr_alloc(fnic->vdev, &fnic->intr[i], i);
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if (err)
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goto err_out_cleanup;
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}
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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;
|
||
|
|
}
|