371 lines
8.8 KiB
C
371 lines
8.8 KiB
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/kernel.h>
|
|
#include <linux/errno.h>
|
|
#include <linux/types.h>
|
|
#include <linux/pci.h>
|
|
#include <linux/netdevice.h>
|
|
|
|
#include "wq_enet_desc.h"
|
|
#include "rq_enet_desc.h"
|
|
#include "cq_enet_desc.h"
|
|
#include "vnic_resource.h"
|
|
#include "vnic_enet.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 "vnic_rss.h"
|
|
#include "enic_res.h"
|
|
#include "enic.h"
|
|
|
|
int enic_get_vnic_config(struct enic *enic)
|
|
{
|
|
struct vnic_enet_config *c = &enic->config;
|
|
int err;
|
|
|
|
err = vnic_dev_mac_addr(enic->vdev, enic->mac_addr);
|
|
if (err) {
|
|
printk(KERN_ERR PFX "Error getting MAC addr, %d\n", err);
|
|
return err;
|
|
}
|
|
|
|
#define GET_CONFIG(m) \
|
|
do { \
|
|
err = vnic_dev_spec(enic->vdev, \
|
|
offsetof(struct vnic_enet_config, m), \
|
|
sizeof(c->m), &c->m); \
|
|
if (err) { \
|
|
printk(KERN_ERR PFX \
|
|
"Error getting %s, %d\n", #m, err); \
|
|
return err; \
|
|
} \
|
|
} while (0)
|
|
|
|
GET_CONFIG(flags);
|
|
GET_CONFIG(wq_desc_count);
|
|
GET_CONFIG(rq_desc_count);
|
|
GET_CONFIG(mtu);
|
|
GET_CONFIG(intr_timer);
|
|
GET_CONFIG(intr_timer_type);
|
|
GET_CONFIG(intr_mode);
|
|
|
|
c->wq_desc_count =
|
|
min_t(u32, ENIC_MAX_WQ_DESCS,
|
|
max_t(u32, ENIC_MIN_WQ_DESCS,
|
|
c->wq_desc_count));
|
|
c->wq_desc_count &= 0xfffffff0; /* must be aligned to groups of 16 */
|
|
|
|
c->rq_desc_count =
|
|
min_t(u32, ENIC_MAX_RQ_DESCS,
|
|
max_t(u32, ENIC_MIN_RQ_DESCS,
|
|
c->rq_desc_count));
|
|
c->rq_desc_count &= 0xfffffff0; /* must be aligned to groups of 16 */
|
|
|
|
if (c->mtu == 0)
|
|
c->mtu = 1500;
|
|
c->mtu = min_t(u16, ENIC_MAX_MTU,
|
|
max_t(u16, ENIC_MIN_MTU,
|
|
c->mtu));
|
|
|
|
c->intr_timer = min_t(u16, VNIC_INTR_TIMER_MAX, c->intr_timer);
|
|
|
|
printk(KERN_INFO PFX "vNIC MAC addr %02x:%02x:%02x:%02x:%02x:%02x "
|
|
"wq/rq %d/%d\n",
|
|
enic->mac_addr[0], enic->mac_addr[1], enic->mac_addr[2],
|
|
enic->mac_addr[3], enic->mac_addr[4], enic->mac_addr[5],
|
|
c->wq_desc_count, c->rq_desc_count);
|
|
printk(KERN_INFO PFX "vNIC mtu %d csum tx/rx %d/%d tso/lro %d/%d "
|
|
"intr timer %d\n",
|
|
c->mtu, ENIC_SETTING(enic, TXCSUM),
|
|
ENIC_SETTING(enic, RXCSUM), ENIC_SETTING(enic, TSO),
|
|
ENIC_SETTING(enic, LRO), c->intr_timer);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void enic_add_station_addr(struct enic *enic)
|
|
{
|
|
vnic_dev_add_addr(enic->vdev, enic->mac_addr);
|
|
}
|
|
|
|
void enic_add_multicast_addr(struct enic *enic, u8 *addr)
|
|
{
|
|
vnic_dev_add_addr(enic->vdev, addr);
|
|
}
|
|
|
|
void enic_del_multicast_addr(struct enic *enic, u8 *addr)
|
|
{
|
|
vnic_dev_del_addr(enic->vdev, addr);
|
|
}
|
|
|
|
void enic_add_vlan(struct enic *enic, u16 vlanid)
|
|
{
|
|
u64 a0 = vlanid, a1 = 0;
|
|
int wait = 1000;
|
|
int err;
|
|
|
|
err = vnic_dev_cmd(enic->vdev, CMD_VLAN_ADD, &a0, &a1, wait);
|
|
if (err)
|
|
printk(KERN_ERR PFX "Can't add vlan id, %d\n", err);
|
|
}
|
|
|
|
void enic_del_vlan(struct enic *enic, u16 vlanid)
|
|
{
|
|
u64 a0 = vlanid, a1 = 0;
|
|
int wait = 1000;
|
|
int err;
|
|
|
|
err = vnic_dev_cmd(enic->vdev, CMD_VLAN_DEL, &a0, &a1, wait);
|
|
if (err)
|
|
printk(KERN_ERR PFX "Can't delete vlan id, %d\n", err);
|
|
}
|
|
|
|
int enic_set_nic_cfg(struct enic *enic, 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(enic->vdev, CMD_NIC_CFG, &a0, &a1, wait);
|
|
}
|
|
|
|
void enic_free_vnic_resources(struct enic *enic)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < enic->wq_count; i++)
|
|
vnic_wq_free(&enic->wq[i]);
|
|
for (i = 0; i < enic->rq_count; i++)
|
|
vnic_rq_free(&enic->rq[i]);
|
|
for (i = 0; i < enic->cq_count; i++)
|
|
vnic_cq_free(&enic->cq[i]);
|
|
for (i = 0; i < enic->intr_count; i++)
|
|
vnic_intr_free(&enic->intr[i]);
|
|
}
|
|
|
|
void enic_get_res_counts(struct enic *enic)
|
|
{
|
|
enic->wq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_WQ);
|
|
enic->rq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_RQ);
|
|
enic->cq_count = vnic_dev_get_res_count(enic->vdev, RES_TYPE_CQ);
|
|
enic->intr_count = vnic_dev_get_res_count(enic->vdev,
|
|
RES_TYPE_INTR_CTRL);
|
|
|
|
printk(KERN_INFO PFX "vNIC resources avail: "
|
|
"wq %d rq %d cq %d intr %d\n",
|
|
enic->wq_count, enic->rq_count,
|
|
enic->cq_count, enic->intr_count);
|
|
}
|
|
|
|
void enic_init_vnic_resources(struct enic *enic)
|
|
{
|
|
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 cq_index;
|
|
unsigned int i;
|
|
|
|
intr_mode = vnic_dev_get_intr_mode(enic->vdev);
|
|
|
|
/* Init RQ/WQ resources.
|
|
*
|
|
* RQ[0 - n-1] point to CQ[0 - n-1]
|
|
* WQ[0 - m-1] point to CQ[n - n+m-1]
|
|
*
|
|
* 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 = enic->intr_count - 2;
|
|
break;
|
|
default:
|
|
error_interrupt_enable = 0;
|
|
error_interrupt_offset = 0;
|
|
break;
|
|
}
|
|
|
|
for (i = 0; i < enic->rq_count; i++) {
|
|
cq_index = i;
|
|
vnic_rq_init(&enic->rq[i],
|
|
cq_index,
|
|
error_interrupt_enable,
|
|
error_interrupt_offset);
|
|
}
|
|
|
|
for (i = 0; i < enic->wq_count; i++) {
|
|
cq_index = enic->rq_count + i;
|
|
vnic_wq_init(&enic->wq[i],
|
|
cq_index,
|
|
error_interrupt_enable,
|
|
error_interrupt_offset);
|
|
}
|
|
|
|
/* Init CQ resources
|
|
*
|
|
* CQ[0 - n+m-1] point to INTR[0] for INTx, MSI
|
|
* CQ[0 - n+m-1] point to INTR[0 - n+m-1] for MSI-X
|
|
*/
|
|
|
|
for (i = 0; i < enic->cq_count; i++) {
|
|
|
|
switch (intr_mode) {
|
|
case VNIC_DEV_INTR_MODE_MSIX:
|
|
interrupt_offset = i;
|
|
break;
|
|
default:
|
|
interrupt_offset = 0;
|
|
break;
|
|
}
|
|
|
|
vnic_cq_init(&enic->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 < enic->intr_count; i++) {
|
|
vnic_intr_init(&enic->intr[i],
|
|
enic->config.intr_timer,
|
|
enic->config.intr_timer_type,
|
|
mask_on_assertion);
|
|
}
|
|
|
|
/* Clear LIF stats
|
|
*/
|
|
|
|
vnic_dev_stats_clear(enic->vdev);
|
|
}
|
|
|
|
int enic_alloc_vnic_resources(struct enic *enic)
|
|
{
|
|
enum vnic_dev_intr_mode intr_mode;
|
|
unsigned int i;
|
|
int err;
|
|
|
|
intr_mode = vnic_dev_get_intr_mode(enic->vdev);
|
|
|
|
printk(KERN_INFO PFX "vNIC resources used: "
|
|
"wq %d rq %d cq %d intr %d intr mode %s\n",
|
|
enic->wq_count, enic->rq_count,
|
|
enic->cq_count, enic->intr_count,
|
|
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"
|
|
);
|
|
|
|
/* Allocate queue resources
|
|
*/
|
|
|
|
for (i = 0; i < enic->wq_count; i++) {
|
|
err = vnic_wq_alloc(enic->vdev, &enic->wq[i], i,
|
|
enic->config.wq_desc_count,
|
|
sizeof(struct wq_enet_desc));
|
|
if (err)
|
|
goto err_out_cleanup;
|
|
}
|
|
|
|
for (i = 0; i < enic->rq_count; i++) {
|
|
err = vnic_rq_alloc(enic->vdev, &enic->rq[i], i,
|
|
enic->config.rq_desc_count,
|
|
sizeof(struct rq_enet_desc));
|
|
if (err)
|
|
goto err_out_cleanup;
|
|
}
|
|
|
|
for (i = 0; i < enic->cq_count; i++) {
|
|
if (i < enic->rq_count)
|
|
err = vnic_cq_alloc(enic->vdev, &enic->cq[i], i,
|
|
enic->config.rq_desc_count,
|
|
sizeof(struct cq_enet_rq_desc));
|
|
else
|
|
err = vnic_cq_alloc(enic->vdev, &enic->cq[i], i,
|
|
enic->config.wq_desc_count,
|
|
sizeof(struct cq_enet_wq_desc));
|
|
if (err)
|
|
goto err_out_cleanup;
|
|
}
|
|
|
|
for (i = 0; i < enic->intr_count; i++) {
|
|
err = vnic_intr_alloc(enic->vdev, &enic->intr[i], i);
|
|
if (err)
|
|
goto err_out_cleanup;
|
|
}
|
|
|
|
/* Hook remaining resource
|
|
*/
|
|
|
|
enic->legacy_pba = vnic_dev_get_res(enic->vdev,
|
|
RES_TYPE_INTR_PBA_LEGACY, 0);
|
|
if (!enic->legacy_pba && intr_mode == VNIC_DEV_INTR_MODE_INTX) {
|
|
printk(KERN_ERR PFX "Failed to hook legacy pba resource\n");
|
|
err = -ENODEV;
|
|
goto err_out_cleanup;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_out_cleanup:
|
|
enic_free_vnic_resources(enic);
|
|
|
|
return err;
|
|
}
|