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freebsd-skq/sys/dev/qlxgb/qla_hw.c
Pedro F. Giffuni 718cf2ccb9 sys/dev: further adoption of SPDX licensing ID tags. 
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 14:52:40 +00:00

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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2011-2012 Qlogic Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* File: qla_hw.c
* Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656.
* Content: Contains Hardware dependent functions
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "qla_os.h"
#include "qla_reg.h"
#include "qla_hw.h"
#include "qla_def.h"
#include "qla_inline.h"
#include "qla_ver.h"
#include "qla_glbl.h"
#include "qla_dbg.h"
static uint32_t sysctl_num_rds_rings = 2;
static uint32_t sysctl_num_sds_rings = 4;
/*
* Static Functions
*/
static void qla_init_cntxt_regions(qla_host_t *ha);
static int qla_issue_cmd(qla_host_t *ha, qla_cdrp_t *cdrp);
static int qla_fw_cmd(qla_host_t *ha, void *fw_cmd, uint32_t size);
static int qla_config_mac_addr(qla_host_t *ha, uint8_t *mac_addr,
uint16_t cntxt_id, uint32_t add_multi);
static void qla_del_rcv_cntxt(qla_host_t *ha);
static int qla_init_rcv_cntxt(qla_host_t *ha);
static void qla_del_xmt_cntxt(qla_host_t *ha);
static int qla_init_xmt_cntxt(qla_host_t *ha);
static int qla_get_max_rds(qla_host_t *ha);
static int qla_get_max_sds(qla_host_t *ha);
static int qla_get_max_rules(qla_host_t *ha);
static int qla_get_max_rcv_cntxts(qla_host_t *ha);
static int qla_get_max_tx_cntxts(qla_host_t *ha);
static int qla_get_max_mtu(qla_host_t *ha);
static int qla_get_max_lro(qla_host_t *ha);
static int qla_get_flow_control(qla_host_t *ha);
static void qla_hw_tx_done_locked(qla_host_t *ha);
int
qla_get_msix_count(qla_host_t *ha)
{
return (sysctl_num_sds_rings);
}
/*
* Name: qla_hw_add_sysctls
* Function: Add P3Plus specific sysctls
*/
void
qla_hw_add_sysctls(qla_host_t *ha)
{
device_t dev;
dev = ha->pci_dev;
SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "num_rds_rings", CTLFLAG_RD, &sysctl_num_rds_rings,
sysctl_num_rds_rings, "Number of Rcv Descriptor Rings");
SYSCTL_ADD_UINT(device_get_sysctl_ctx(dev),
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
OID_AUTO, "num_sds_rings", CTLFLAG_RD, &sysctl_num_sds_rings,
sysctl_num_sds_rings, "Number of Status Descriptor Rings");
}
/*
* Name: qla_free_dma
* Function: Frees the DMA'able memory allocated in qla_alloc_dma()
*/
void
qla_free_dma(qla_host_t *ha)
{
uint32_t i;
if (ha->hw.dma_buf.flags.context) {
qla_free_dmabuf(ha, &ha->hw.dma_buf.context);
ha->hw.dma_buf.flags.context = 0;
}
if (ha->hw.dma_buf.flags.sds_ring) {
for (i = 0; i < ha->hw.num_sds_rings; i++)
qla_free_dmabuf(ha, &ha->hw.dma_buf.sds_ring[i]);
ha->hw.dma_buf.flags.sds_ring = 0;
}
if (ha->hw.dma_buf.flags.rds_ring) {
for (i = 0; i < ha->hw.num_rds_rings; i++)
qla_free_dmabuf(ha, &ha->hw.dma_buf.rds_ring[i]);
ha->hw.dma_buf.flags.rds_ring = 0;
}
if (ha->hw.dma_buf.flags.tx_ring) {
qla_free_dmabuf(ha, &ha->hw.dma_buf.tx_ring);
ha->hw.dma_buf.flags.tx_ring = 0;
}
}
/*
* Name: qla_alloc_dma
* Function: Allocates DMA'able memory for Tx/Rx Rings, Tx/Rx Contexts.
*/
int
qla_alloc_dma(qla_host_t *ha)
{
device_t dev;
uint32_t i, j, size;
dev = ha->pci_dev;
QL_DPRINT2((dev, "%s: enter\n", __func__));
ha->hw.num_rds_rings = (uint16_t)sysctl_num_rds_rings;
ha->hw.num_sds_rings = (uint16_t)sysctl_num_sds_rings;
/*
* Allocate Transmit Ring
*/
ha->hw.dma_buf.tx_ring.alignment = 8;
ha->hw.dma_buf.tx_ring.size =
(sizeof(q80_tx_cmd_t)) * NUM_TX_DESCRIPTORS;
if (qla_alloc_dmabuf(ha, &ha->hw.dma_buf.tx_ring)) {
device_printf(dev, "%s: tx ring alloc failed\n", __func__);
goto qla_alloc_dma_exit;
}
ha->hw.dma_buf.flags.tx_ring = 1;
QL_DPRINT2((dev, "%s: tx_ring phys %p virt %p\n",
__func__, (void *)(ha->hw.dma_buf.tx_ring.dma_addr),
ha->hw.dma_buf.tx_ring.dma_b));
/*
* Allocate Receive Descriptor Rings
*/
for (i = 0; i < ha->hw.num_rds_rings; i++) {
ha->hw.dma_buf.rds_ring[i].alignment = 8;
if (i == RDS_RING_INDEX_NORMAL) {
ha->hw.dma_buf.rds_ring[i].size =
(sizeof(q80_recv_desc_t)) * NUM_RX_DESCRIPTORS;
} else if (i == RDS_RING_INDEX_JUMBO) {
ha->hw.dma_buf.rds_ring[i].size =
(sizeof(q80_recv_desc_t)) *
NUM_RX_JUMBO_DESCRIPTORS;
} else
break;
if (qla_alloc_dmabuf(ha, &ha->hw.dma_buf.rds_ring[i])) {
QL_DPRINT4((dev, "%s: rds ring alloc failed\n",
__func__));
for (j = 0; j < i; j++)
qla_free_dmabuf(ha,
&ha->hw.dma_buf.rds_ring[j]);
goto qla_alloc_dma_exit;
}
QL_DPRINT4((dev, "%s: rx_ring[%d] phys %p virt %p\n",
__func__, i,
(void *)(ha->hw.dma_buf.rds_ring[i].dma_addr),
ha->hw.dma_buf.rds_ring[i].dma_b));
}
ha->hw.dma_buf.flags.rds_ring = 1;
/*
* Allocate Status Descriptor Rings
*/
for (i = 0; i < ha->hw.num_sds_rings; i++) {
ha->hw.dma_buf.sds_ring[i].alignment = 8;
ha->hw.dma_buf.sds_ring[i].size =
(sizeof(q80_stat_desc_t)) * NUM_STATUS_DESCRIPTORS;
if (qla_alloc_dmabuf(ha, &ha->hw.dma_buf.sds_ring[i])) {
device_printf(dev, "%s: sds ring alloc failed\n",
__func__);
for (j = 0; j < i; j++)
qla_free_dmabuf(ha,
&ha->hw.dma_buf.sds_ring[j]);
goto qla_alloc_dma_exit;
}
QL_DPRINT4((dev, "%s: sds_ring[%d] phys %p virt %p\n",
__func__, i,
(void *)(ha->hw.dma_buf.sds_ring[i].dma_addr),
ha->hw.dma_buf.sds_ring[i].dma_b));
}
ha->hw.dma_buf.flags.sds_ring = 1;
/*
* Allocate Context Area
*/
size = QL_ALIGN((sizeof (q80_tx_cntxt_req_t)), QL_BUFFER_ALIGN);
size += QL_ALIGN((sizeof (q80_tx_cntxt_rsp_t)), QL_BUFFER_ALIGN);
size += QL_ALIGN((sizeof (q80_rcv_cntxt_req_t)), QL_BUFFER_ALIGN);
size += QL_ALIGN((sizeof (q80_rcv_cntxt_rsp_t)), QL_BUFFER_ALIGN);
size += sizeof (uint32_t); /* for tx consumer index */
size = QL_ALIGN(size, PAGE_SIZE);
ha->hw.dma_buf.context.alignment = 8;
ha->hw.dma_buf.context.size = size;
if (qla_alloc_dmabuf(ha, &ha->hw.dma_buf.context)) {
device_printf(dev, "%s: context alloc failed\n", __func__);
goto qla_alloc_dma_exit;
}
ha->hw.dma_buf.flags.context = 1;
QL_DPRINT2((dev, "%s: context phys %p virt %p\n",
__func__, (void *)(ha->hw.dma_buf.context.dma_addr),
ha->hw.dma_buf.context.dma_b));
qla_init_cntxt_regions(ha);
return 0;
qla_alloc_dma_exit:
qla_free_dma(ha);
return -1;
}
/*
* Name: qla_init_cntxt_regions
* Function: Initializes Tx/Rx Contexts.
*/
static void
qla_init_cntxt_regions(qla_host_t *ha)
{
qla_hw_t *hw;
q80_tx_cntxt_req_t *tx_cntxt_req;
q80_rcv_cntxt_req_t *rx_cntxt_req;
bus_addr_t phys_addr;
uint32_t i;
device_t dev;
uint32_t size;
dev = ha->pci_dev;
hw = &ha->hw;
hw->tx_ring_base = hw->dma_buf.tx_ring.dma_b;
for (i = 0; i < ha->hw.num_sds_rings; i++)
hw->sds[i].sds_ring_base =
(q80_stat_desc_t *)hw->dma_buf.sds_ring[i].dma_b;
phys_addr = hw->dma_buf.context.dma_addr;
memset((void *)hw->dma_buf.context.dma_b, 0,
ha->hw.dma_buf.context.size);
hw->tx_cntxt_req =
(q80_tx_cntxt_req_t *)hw->dma_buf.context.dma_b;
hw->tx_cntxt_req_paddr = phys_addr;
size = QL_ALIGN((sizeof (q80_tx_cntxt_req_t)), QL_BUFFER_ALIGN);
hw->tx_cntxt_rsp =
(q80_tx_cntxt_rsp_t *)((uint8_t *)hw->tx_cntxt_req + size);
hw->tx_cntxt_rsp_paddr = hw->tx_cntxt_req_paddr + size;
size = QL_ALIGN((sizeof (q80_tx_cntxt_rsp_t)), QL_BUFFER_ALIGN);
hw->rx_cntxt_req =
(q80_rcv_cntxt_req_t *)((uint8_t *)hw->tx_cntxt_rsp + size);
hw->rx_cntxt_req_paddr = hw->tx_cntxt_rsp_paddr + size;
size = QL_ALIGN((sizeof (q80_rcv_cntxt_req_t)), QL_BUFFER_ALIGN);
hw->rx_cntxt_rsp =
(q80_rcv_cntxt_rsp_t *)((uint8_t *)hw->rx_cntxt_req + size);
hw->rx_cntxt_rsp_paddr = hw->rx_cntxt_req_paddr + size;
size = QL_ALIGN((sizeof (q80_rcv_cntxt_rsp_t)), QL_BUFFER_ALIGN);
hw->tx_cons = (uint32_t *)((uint8_t *)hw->rx_cntxt_rsp + size);
hw->tx_cons_paddr = hw->rx_cntxt_rsp_paddr + size;
/*
* Initialize the Transmit Context Request so that we don't need to
* do it every time we need to create a context
*/
tx_cntxt_req = hw->tx_cntxt_req;
tx_cntxt_req->rsp_dma_addr = qla_host_to_le64(hw->tx_cntxt_rsp_paddr);
tx_cntxt_req->cmd_cons_dma_addr = qla_host_to_le64(hw->tx_cons_paddr);
tx_cntxt_req->caps[0] = qla_host_to_le32((CNTXT_CAP0_BASEFW |
CNTXT_CAP0_LEGACY_MN | CNTXT_CAP0_LSO));
tx_cntxt_req->intr_mode = qla_host_to_le32(CNTXT_INTR_MODE_SHARED);
tx_cntxt_req->phys_addr =
qla_host_to_le64(hw->dma_buf.tx_ring.dma_addr);
tx_cntxt_req->num_entries = qla_host_to_le32(NUM_TX_DESCRIPTORS);
/*
* Initialize the Receive Context Request
*/
rx_cntxt_req = hw->rx_cntxt_req;
rx_cntxt_req->rx_req.rsp_dma_addr =
qla_host_to_le64(hw->rx_cntxt_rsp_paddr);
rx_cntxt_req->rx_req.caps[0] = qla_host_to_le32(CNTXT_CAP0_BASEFW |
CNTXT_CAP0_LEGACY_MN |
CNTXT_CAP0_JUMBO |
CNTXT_CAP0_LRO|
CNTXT_CAP0_HW_LRO);
rx_cntxt_req->rx_req.intr_mode =
qla_host_to_le32(CNTXT_INTR_MODE_SHARED);
rx_cntxt_req->rx_req.rds_intr_mode =
qla_host_to_le32(CNTXT_INTR_MODE_UNIQUE);
rx_cntxt_req->rx_req.rds_ring_offset = 0;
rx_cntxt_req->rx_req.sds_ring_offset = qla_host_to_le32(
(hw->num_rds_rings * sizeof(q80_rq_rds_ring_t)));
rx_cntxt_req->rx_req.num_rds_rings =
qla_host_to_le16(hw->num_rds_rings);
rx_cntxt_req->rx_req.num_sds_rings =
qla_host_to_le16(hw->num_sds_rings);
for (i = 0; i < hw->num_rds_rings; i++) {
rx_cntxt_req->rds_req[i].phys_addr =
qla_host_to_le64(hw->dma_buf.rds_ring[i].dma_addr);
if (i == RDS_RING_INDEX_NORMAL) {
rx_cntxt_req->rds_req[i].buf_size =
qla_host_to_le64(MCLBYTES);
rx_cntxt_req->rds_req[i].size =
qla_host_to_le32(NUM_RX_DESCRIPTORS);
} else {
rx_cntxt_req->rds_req[i].buf_size =
qla_host_to_le64(MJUM9BYTES);
rx_cntxt_req->rds_req[i].size =
qla_host_to_le32(NUM_RX_JUMBO_DESCRIPTORS);
}
}
for (i = 0; i < hw->num_sds_rings; i++) {
rx_cntxt_req->sds_req[i].phys_addr =
qla_host_to_le64(hw->dma_buf.sds_ring[i].dma_addr);
rx_cntxt_req->sds_req[i].size =
qla_host_to_le32(NUM_STATUS_DESCRIPTORS);
rx_cntxt_req->sds_req[i].msi_index = qla_host_to_le16(i);
}
QL_DPRINT2((ha->pci_dev, "%s: tx_cntxt_req = %p paddr %p\n",
__func__, hw->tx_cntxt_req, (void *)hw->tx_cntxt_req_paddr));
QL_DPRINT2((ha->pci_dev, "%s: tx_cntxt_rsp = %p paddr %p\n",
__func__, hw->tx_cntxt_rsp, (void *)hw->tx_cntxt_rsp_paddr));
QL_DPRINT2((ha->pci_dev, "%s: rx_cntxt_req = %p paddr %p\n",
__func__, hw->rx_cntxt_req, (void *)hw->rx_cntxt_req_paddr));
QL_DPRINT2((ha->pci_dev, "%s: rx_cntxt_rsp = %p paddr %p\n",
__func__, hw->rx_cntxt_rsp, (void *)hw->rx_cntxt_rsp_paddr));
QL_DPRINT2((ha->pci_dev, "%s: tx_cons = %p paddr %p\n",
__func__, hw->tx_cons, (void *)hw->tx_cons_paddr));
}
/*
* Name: qla_issue_cmd
* Function: Issues commands on the CDRP interface and returns responses.
*/
static int
qla_issue_cmd(qla_host_t *ha, qla_cdrp_t *cdrp)
{
int ret = 0;
uint32_t signature;
uint32_t count = 400; /* 4 seconds or 400 10ms intervals */
uint32_t data;
device_t dev;
dev = ha->pci_dev;
signature = 0xcafe0000 | 0x0100 | ha->pci_func;
ret = qla_sem_lock(ha, Q8_SEM5_LOCK, 0, (uint32_t)ha->pci_func);
if (ret) {
device_printf(dev, "%s: SEM5_LOCK lock failed\n", __func__);
return (ret);
}
WRITE_OFFSET32(ha, Q8_NX_CDRP_SIGNATURE, signature);
WRITE_OFFSET32(ha, Q8_NX_CDRP_ARG1, (cdrp->cmd_arg1));
WRITE_OFFSET32(ha, Q8_NX_CDRP_ARG2, (cdrp->cmd_arg2));
WRITE_OFFSET32(ha, Q8_NX_CDRP_ARG3, (cdrp->cmd_arg3));
WRITE_OFFSET32(ha, Q8_NX_CDRP_CMD_RSP, cdrp->cmd);
while (count) {
qla_mdelay(__func__, 10);
data = READ_REG32(ha, Q8_NX_CDRP_CMD_RSP);
if ((!(data & 0x80000000)))
break;
count--;
}
if ((!count) || (data != 1))
ret = -1;
cdrp->rsp = READ_REG32(ha, Q8_NX_CDRP_CMD_RSP);
cdrp->rsp_arg1 = READ_REG32(ha, Q8_NX_CDRP_ARG1);
cdrp->rsp_arg2 = READ_REG32(ha, Q8_NX_CDRP_ARG2);
cdrp->rsp_arg3 = READ_REG32(ha, Q8_NX_CDRP_ARG3);
qla_sem_unlock(ha, Q8_SEM5_UNLOCK);
if (ret) {
device_printf(dev, "%s: "
"cmd[0x%08x] = 0x%08x\n"
"\tsig[0x%08x] = 0x%08x\n"
"\targ1[0x%08x] = 0x%08x\n"
"\targ2[0x%08x] = 0x%08x\n"
"\targ3[0x%08x] = 0x%08x\n",
__func__, Q8_NX_CDRP_CMD_RSP, cdrp->cmd,
Q8_NX_CDRP_SIGNATURE, signature,
Q8_NX_CDRP_ARG1, cdrp->cmd_arg1,
Q8_NX_CDRP_ARG2, cdrp->cmd_arg2,
Q8_NX_CDRP_ARG3, cdrp->cmd_arg3);
device_printf(dev, "%s: exit (ret = 0x%x)\n"
"\t\t rsp = 0x%08x\n"
"\t\t arg1 = 0x%08x\n"
"\t\t arg2 = 0x%08x\n"
"\t\t arg3 = 0x%08x\n",
__func__, ret, cdrp->rsp,
cdrp->rsp_arg1, cdrp->rsp_arg2, cdrp->rsp_arg3);
}
return (ret);
}
#define QLA_TX_MIN_FREE 2
/*
* Name: qla_fw_cmd
* Function: Issues firmware control commands on the Tx Ring.
*/
static int
qla_fw_cmd(qla_host_t *ha, void *fw_cmd, uint32_t size)
{
device_t dev;
q80_tx_cmd_t *tx_cmd;
qla_hw_t *hw = &ha->hw;
int count = 100;
dev = ha->pci_dev;
QLA_TX_LOCK(ha);
if (hw->txr_free <= QLA_TX_MIN_FREE) {
while (count--) {
qla_hw_tx_done_locked(ha);
if (hw->txr_free > QLA_TX_MIN_FREE)
break;
QLA_TX_UNLOCK(ha);
qla_mdelay(__func__, 10);
QLA_TX_LOCK(ha);
}
if (hw->txr_free <= QLA_TX_MIN_FREE) {
QLA_TX_UNLOCK(ha);
device_printf(dev, "%s: xmit queue full\n", __func__);
return (-1);
}
}
tx_cmd = &hw->tx_ring_base[hw->txr_next];
bzero((void *)tx_cmd, sizeof(q80_tx_cmd_t));
bcopy(fw_cmd, tx_cmd, size);
hw->txr_next = (hw->txr_next + 1) & (NUM_TX_DESCRIPTORS - 1);
hw->txr_free--;
QL_UPDATE_TX_PRODUCER_INDEX(ha, hw->txr_next);
QLA_TX_UNLOCK(ha);
return (0);
}
/*
* Name: qla_config_rss
* Function: Configure RSS for the context/interface.
*/
const uint64_t rss_key[] = { 0xbeac01fa6a42b73bULL, 0x8030f20c77cb2da3ULL,
0xae7b30b4d0ca2bcbULL, 0x43a38fb04167253dULL,
0x255b0ec26d5a56daULL };
static int
qla_config_rss(qla_host_t *ha, uint16_t cntxt_id)
{
qla_fw_cds_config_rss_t rss_config;
int ret, i;
bzero(&rss_config, sizeof(qla_fw_cds_config_rss_t));
rss_config.hdr.cmd = Q8_FWCD_CNTRL_REQ;
rss_config.hdr.opcode = Q8_FWCD_OPCODE_CONFIG_RSS;
rss_config.hdr.cntxt_id = cntxt_id;
rss_config.hash_type = (Q8_FWCD_RSS_HASH_TYPE_IPV4_TCP_IP |
Q8_FWCD_RSS_HASH_TYPE_IPV6_TCP_IP);
rss_config.flags = Q8_FWCD_RSS_FLAGS_ENABLE_RSS;
rss_config.ind_tbl_mask = 0x7;
for (i = 0; i < 5; i++)
rss_config.rss_key[i] = rss_key[i];
ret = qla_fw_cmd(ha, &rss_config, sizeof(qla_fw_cds_config_rss_t));
return ret;
}
/*
* Name: qla_config_intr_coalesce
* Function: Configure Interrupt Coalescing.
*/
static int
qla_config_intr_coalesce(qla_host_t *ha, uint16_t cntxt_id, int tenable)
{
qla_fw_cds_config_intr_coalesc_t intr_coalesce;
int ret;
bzero(&intr_coalesce, sizeof(qla_fw_cds_config_intr_coalesc_t));
intr_coalesce.hdr.cmd = Q8_FWCD_CNTRL_REQ;
intr_coalesce.hdr.opcode = Q8_FWCD_OPCODE_CONFIG_INTR_COALESCING;
intr_coalesce.hdr.cntxt_id = cntxt_id;
intr_coalesce.flags = 0x04;
intr_coalesce.max_rcv_pkts = 256;
intr_coalesce.max_rcv_usecs = 3;
intr_coalesce.max_snd_pkts = 64;
intr_coalesce.max_snd_usecs = 4;
if (tenable) {
intr_coalesce.usecs_to = 1000; /* 1 millisecond */
intr_coalesce.timer_type = Q8_FWCMD_INTR_COALESC_TIMER_PERIODIC;
intr_coalesce.sds_ring_bitmask =
Q8_FWCMD_INTR_COALESC_SDS_RING_0;
}
ret = qla_fw_cmd(ha, &intr_coalesce,
sizeof(qla_fw_cds_config_intr_coalesc_t));
return ret;
}
/*
* Name: qla_config_mac_addr
* Function: binds a MAC address to the context/interface.
* Can be unicast, multicast or broadcast.
*/
static int
qla_config_mac_addr(qla_host_t *ha, uint8_t *mac_addr, uint16_t cntxt_id,
uint32_t add_multi)
{
qla_fw_cds_config_mac_addr_t mac_config;
int ret;
// device_printf(ha->pci_dev,
// "%s: mac_addr %02x:%02x:%02x:%02x:%02x:%02x\n", __func__,
// mac_addr[0], mac_addr[1], mac_addr[2],
// mac_addr[3], mac_addr[4], mac_addr[5]);
bzero(&mac_config, sizeof(qla_fw_cds_config_mac_addr_t));
mac_config.hdr.cmd = Q8_FWCD_CNTRL_REQ;
mac_config.hdr.opcode = Q8_FWCD_OPCODE_CONFIG_MAC_ADDR;
mac_config.hdr.cntxt_id = cntxt_id;
if (add_multi)
mac_config.cmd = Q8_FWCD_ADD_MAC_ADDR;
else
mac_config.cmd = Q8_FWCD_DEL_MAC_ADDR;
bcopy(mac_addr, mac_config.mac_addr,6);
ret = qla_fw_cmd(ha, &mac_config, sizeof(qla_fw_cds_config_mac_addr_t));
return ret;
}
/*
* Name: qla_set_mac_rcv_mode
* Function: Enable/Disable AllMulticast and Promiscuous Modes.
*/
static int
qla_set_mac_rcv_mode(qla_host_t *ha, uint16_t cntxt_id, uint32_t mode)
{
qla_set_mac_rcv_mode_t rcv_mode;
int ret;
bzero(&rcv_mode, sizeof(qla_set_mac_rcv_mode_t));
rcv_mode.hdr.cmd = Q8_FWCD_CNTRL_REQ;
rcv_mode.hdr.opcode = Q8_FWCD_OPCODE_CONFIG_MAC_RCV_MODE;
rcv_mode.hdr.cntxt_id = cntxt_id;
rcv_mode.mode = mode;
ret = qla_fw_cmd(ha, &rcv_mode, sizeof(qla_set_mac_rcv_mode_t));
return ret;
}
void
qla_set_promisc(qla_host_t *ha)
{
(void)qla_set_mac_rcv_mode(ha,
(ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id,
Q8_MAC_RCV_ENABLE_PROMISCUOUS);
}
void
qla_set_allmulti(qla_host_t *ha)
{
(void)qla_set_mac_rcv_mode(ha,
(ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id,
Q8_MAC_RCV_ENABLE_ALLMULTI);
}
void
qla_reset_promisc_allmulti(qla_host_t *ha)
{
(void)qla_set_mac_rcv_mode(ha,
(ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id,
Q8_MAC_RCV_RESET_PROMISC_ALLMULTI);
}
/*
* Name: qla_config_ipv4_addr
* Function: Configures the Destination IP Addr for LRO.
*/
void
qla_config_ipv4_addr(qla_host_t *ha, uint32_t ipv4_addr)
{
qla_config_ipv4_t ip_conf;
bzero(&ip_conf, sizeof(qla_config_ipv4_t));
ip_conf.hdr.cmd = Q8_FWCD_CNTRL_REQ;
ip_conf.hdr.opcode = Q8_FWCD_OPCODE_CONFIG_IPADDR;
ip_conf.hdr.cntxt_id = (ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id;
ip_conf.cmd = (uint64_t)Q8_CONFIG_CMD_IP_ENABLE;
ip_conf.ipv4_addr = (uint64_t)ipv4_addr;
(void)qla_fw_cmd(ha, &ip_conf, sizeof(qla_config_ipv4_t));
return;
}
/*
* Name: qla_tx_tso
* Function: Checks if the packet to be transmitted is a candidate for
* Large TCP Segment Offload. If yes, the appropriate fields in the Tx
* Ring Structure are plugged in.
*/
static int
qla_tx_tso(qla_host_t *ha, struct mbuf *mp, q80_tx_cmd_t *tx_cmd, uint8_t *hdr)
{
struct ether_vlan_header *eh;
struct ip *ip = NULL;
struct tcphdr *th = NULL;
uint32_t ehdrlen, hdrlen = 0, ip_hlen, tcp_hlen, tcp_opt_off;
uint16_t etype, opcode, offload = 1;
uint8_t *tcp_opt;
device_t dev;
dev = ha->pci_dev;
eh = mtod(mp, struct ether_vlan_header *);
if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN)) {
ehdrlen = ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN;
etype = ntohs(eh->evl_proto);
} else {
ehdrlen = ETHER_HDR_LEN;
etype = ntohs(eh->evl_encap_proto);
}
switch (etype) {
case ETHERTYPE_IP:
tcp_opt_off = ehdrlen + sizeof(struct ip) +
sizeof(struct tcphdr);
if (mp->m_len < tcp_opt_off) {
m_copydata(mp, 0, tcp_opt_off, hdr);
ip = (struct ip *)hdr;
} else {
ip = (struct ip *)(mp->m_data + ehdrlen);
}
ip_hlen = ip->ip_hl << 2;
opcode = Q8_TX_CMD_OP_XMT_TCP_LSO;
if ((ip->ip_p != IPPROTO_TCP) ||
(ip_hlen != sizeof (struct ip))) {
offload = 0;
} else {
th = (struct tcphdr *)((caddr_t)ip + ip_hlen);
}
break;
default:
QL_DPRINT8((dev, "%s: type!=ip\n", __func__));
offload = 0;
break;
}
if (!offload)
return (-1);
tcp_hlen = th->th_off << 2;
hdrlen = ehdrlen + ip_hlen + tcp_hlen;
if (mp->m_len < hdrlen) {
if (mp->m_len < tcp_opt_off) {
if (tcp_hlen > sizeof(struct tcphdr)) {
m_copydata(mp, tcp_opt_off,
(tcp_hlen - sizeof(struct tcphdr)),
&hdr[tcp_opt_off]);
}
} else {
m_copydata(mp, 0, hdrlen, hdr);
}
}
if ((mp->m_pkthdr.csum_flags & CSUM_TSO) == 0) {
/* If TCP options are preset only time stamp option is supported */
if ((tcp_hlen - sizeof(struct tcphdr)) != 10)
return -1;
else {
if (mp->m_len < hdrlen) {
tcp_opt = &hdr[tcp_opt_off];
} else {
tcp_opt = (uint8_t *)(mp->m_data + tcp_opt_off);
}
if ((*tcp_opt != 0x01) || (*(tcp_opt + 1) != 0x01) ||
(*(tcp_opt + 2) != 0x08) ||
(*(tcp_opt + 3) != 10)) {
return -1;
}
}
tx_cmd->mss = ha->max_frame_size - ETHER_CRC_LEN - hdrlen;
} else {
tx_cmd->mss = mp->m_pkthdr.tso_segsz;
}
tx_cmd->flags_opcode = opcode ;
tx_cmd->tcp_hdr_off = ip_hlen + ehdrlen;
tx_cmd->ip_hdr_off = ehdrlen;
tx_cmd->mss = mp->m_pkthdr.tso_segsz;
tx_cmd->total_hdr_len = hdrlen;
/* Check for Multicast least significant bit of MSB == 1 */
if (eh->evl_dhost[0] & 0x01) {
tx_cmd->flags_opcode = Q8_TX_CMD_FLAGS_MULTICAST;
}
if (mp->m_len < hdrlen) {
return (1);
}
return (0);
}
/*
* Name: qla_tx_chksum
* Function: Checks if the packet to be transmitted is a candidate for
* TCP/UDP Checksum offload. If yes, the appropriate fields in the Tx
* Ring Structure are plugged in.
*/
static int
qla_tx_chksum(qla_host_t *ha, struct mbuf *mp, q80_tx_cmd_t *tx_cmd)
{
struct ether_vlan_header *eh;
struct ip *ip;
struct ip6_hdr *ip6;
uint32_t ehdrlen, ip_hlen;
uint16_t etype, opcode, offload = 1;
device_t dev;
dev = ha->pci_dev;
if ((mp->m_pkthdr.csum_flags & (CSUM_TCP|CSUM_UDP)) == 0)
return (-1);
eh = mtod(mp, struct ether_vlan_header *);
if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN)) {
ehdrlen = ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN;
etype = ntohs(eh->evl_proto);
} else {
ehdrlen = ETHER_HDR_LEN;
etype = ntohs(eh->evl_encap_proto);
}
switch (etype) {
case ETHERTYPE_IP:
ip = (struct ip *)(mp->m_data + ehdrlen);
ip_hlen = sizeof (struct ip);
if (mp->m_len < (ehdrlen + ip_hlen)) {
device_printf(dev, "%s: ipv4 mlen\n", __func__);
offload = 0;
break;
}
if (ip->ip_p == IPPROTO_TCP)
opcode = Q8_TX_CMD_OP_XMT_TCP_CHKSUM;
else if (ip->ip_p == IPPROTO_UDP)
opcode = Q8_TX_CMD_OP_XMT_UDP_CHKSUM;
else {
device_printf(dev, "%s: ipv4\n", __func__);
offload = 0;
}
break;
case ETHERTYPE_IPV6:
ip6 = (struct ip6_hdr *)(mp->m_data + ehdrlen);
ip_hlen = sizeof(struct ip6_hdr);
if (mp->m_len < (ehdrlen + ip_hlen)) {
device_printf(dev, "%s: ipv6 mlen\n", __func__);
offload = 0;
break;
}
if (ip6->ip6_nxt == IPPROTO_TCP)
opcode = Q8_TX_CMD_OP_XMT_TCP_CHKSUM_IPV6;
else if (ip6->ip6_nxt == IPPROTO_UDP)
opcode = Q8_TX_CMD_OP_XMT_UDP_CHKSUM_IPV6;
else {
device_printf(dev, "%s: ipv6\n", __func__);
offload = 0;
}
break;
default:
offload = 0;
break;
}
if (!offload)
return (-1);
tx_cmd->flags_opcode = opcode;
tx_cmd->tcp_hdr_off = ip_hlen + ehdrlen;
return (0);
}
/*
* Name: qla_hw_send
* Function: Transmits a packet. It first checks if the packet is a
* candidate for Large TCP Segment Offload and then for UDP/TCP checksum
* offload. If either of these creteria are not met, it is transmitted
* as a regular ethernet frame.
*/
int
qla_hw_send(qla_host_t *ha, bus_dma_segment_t *segs, int nsegs,
uint32_t *tx_idx, struct mbuf *mp)
{
struct ether_vlan_header *eh;
qla_hw_t *hw = &ha->hw;
q80_tx_cmd_t *tx_cmd, tso_cmd;
bus_dma_segment_t *c_seg;
uint32_t num_tx_cmds, hdr_len = 0;
uint32_t total_length = 0, bytes, tx_cmd_count = 0;
device_t dev;
int i, ret;
uint8_t *src = NULL, *dst = NULL;
dev = ha->pci_dev;
/*
* Always make sure there is atleast one empty slot in the tx_ring
* tx_ring is considered full when there only one entry available
*/
num_tx_cmds = (nsegs + (Q8_TX_CMD_MAX_SEGMENTS - 1)) >> 2;
total_length = mp->m_pkthdr.len;
if (total_length > QLA_MAX_TSO_FRAME_SIZE) {
device_printf(dev, "%s: total length exceeds maxlen(%d)\n",
__func__, total_length);
return (-1);
}
eh = mtod(mp, struct ether_vlan_header *);
if ((mp->m_pkthdr.len > ha->max_frame_size)||(nsegs > Q8_TX_MAX_SEGMENTS)) {
bzero((void *)&tso_cmd, sizeof(q80_tx_cmd_t));
src = ha->hw.frame_hdr;
ret = qla_tx_tso(ha, mp, &tso_cmd, src);
if (!(ret & ~1)) {
/* find the additional tx_cmd descriptors required */
hdr_len = tso_cmd.total_hdr_len;
bytes = sizeof(q80_tx_cmd_t) - Q8_TX_CMD_TSO_ALIGN;
bytes = QL_MIN(bytes, hdr_len);
num_tx_cmds++;
hdr_len -= bytes;
while (hdr_len) {
bytes = QL_MIN((sizeof(q80_tx_cmd_t)), hdr_len);
hdr_len -= bytes;
num_tx_cmds++;
}
hdr_len = tso_cmd.total_hdr_len;
if (ret == 0)
src = (uint8_t *)eh;
}
}
if (hw->txr_free <= (num_tx_cmds + QLA_TX_MIN_FREE)) {
qla_hw_tx_done_locked(ha);
if (hw->txr_free <= (num_tx_cmds + QLA_TX_MIN_FREE)) {
QL_DPRINT8((dev, "%s: (hw->txr_free <= "
"(num_tx_cmds + QLA_TX_MIN_FREE))\n",
__func__));
return (-1);
}
}
*tx_idx = hw->txr_next;
tx_cmd = &hw->tx_ring_base[hw->txr_next];
if (hdr_len == 0) {
if ((nsegs > Q8_TX_MAX_SEGMENTS) ||
(mp->m_pkthdr.len > ha->max_frame_size)){
device_printf(dev,
"%s: (nsegs[%d, %d, 0x%b] > Q8_TX_MAX_SEGMENTS)\n",
__func__, nsegs, mp->m_pkthdr.len,
(int)mp->m_pkthdr.csum_flags, CSUM_BITS);
qla_dump_buf8(ha, "qla_hw_send: wrong pkt",
mtod(mp, char *), mp->m_len);
return (EINVAL);
}
bzero((void *)tx_cmd, sizeof(q80_tx_cmd_t));
if (qla_tx_chksum(ha, mp, tx_cmd) != 0)
tx_cmd->flags_opcode = Q8_TX_CMD_OP_XMT_ETHER;
} else {
bcopy(&tso_cmd, tx_cmd, sizeof(q80_tx_cmd_t));
}
if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN))
tx_cmd->flags_opcode |= Q8_TX_CMD_FLAGS_VLAN_TAGGED;
else if (mp->m_flags & M_VLANTAG) {
tx_cmd->flags_opcode |= (Q8_TX_CMD_FLAGS_VLAN_TAGGED |
Q8_TX_CMD_FLAGS_HW_VLAN_ID);
tx_cmd->vlan_tci = mp->m_pkthdr.ether_vtag;
}
tx_cmd->n_bufs = (uint8_t)nsegs;
tx_cmd->data_len_lo = (uint8_t)(total_length & 0xFF);
tx_cmd->data_len_hi = qla_host_to_le16(((uint16_t)(total_length >> 8)));
tx_cmd->port_cntxtid = Q8_TX_CMD_PORT_CNXTID(ha->pci_func);
c_seg = segs;
while (1) {
for (i = 0; ((i < Q8_TX_CMD_MAX_SEGMENTS) && nsegs); i++) {
switch (i) {
case 0:
tx_cmd->buf1_addr = c_seg->ds_addr;
tx_cmd->buf1_len = c_seg->ds_len;
break;
case 1:
tx_cmd->buf2_addr = c_seg->ds_addr;
tx_cmd->buf2_len = c_seg->ds_len;
break;
case 2:
tx_cmd->buf3_addr = c_seg->ds_addr;
tx_cmd->buf3_len = c_seg->ds_len;
break;
case 3:
tx_cmd->buf4_addr = c_seg->ds_addr;
tx_cmd->buf4_len = c_seg->ds_len;
break;
}
c_seg++;
nsegs--;
}
hw->txr_next = (hw->txr_next + 1) & (NUM_TX_DESCRIPTORS - 1);
tx_cmd_count++;
if (!nsegs)
break;
tx_cmd = &hw->tx_ring_base[hw->txr_next];
bzero((void *)tx_cmd, sizeof(q80_tx_cmd_t));
}
if (hdr_len) {
/* TSO : Copy the header in the following tx cmd descriptors */
tx_cmd = &hw->tx_ring_base[hw->txr_next];
bzero((void *)tx_cmd, sizeof(q80_tx_cmd_t));
bytes = sizeof(q80_tx_cmd_t) - Q8_TX_CMD_TSO_ALIGN;
bytes = QL_MIN(bytes, hdr_len);
dst = (uint8_t *)tx_cmd + Q8_TX_CMD_TSO_ALIGN;
if (mp->m_flags & M_VLANTAG) {
/* first copy the src/dst MAC addresses */
bcopy(src, dst, (ETHER_ADDR_LEN * 2));
dst += (ETHER_ADDR_LEN * 2);
src += (ETHER_ADDR_LEN * 2);
hdr_len -= (ETHER_ADDR_LEN * 2);
*((uint16_t *)dst) = htons(ETHERTYPE_VLAN);
dst += 2;
*((uint16_t *)dst) = mp->m_pkthdr.ether_vtag;
dst += 2;
bytes -= ((ETHER_ADDR_LEN * 2) + 4);
bcopy(src, dst, bytes);
src += bytes;
hdr_len -= bytes;
} else {
bcopy(src, dst, bytes);
src += bytes;
hdr_len -= bytes;
}
hw->txr_next = (hw->txr_next + 1) & (NUM_TX_DESCRIPTORS - 1);
tx_cmd_count++;
while (hdr_len) {
tx_cmd = &hw->tx_ring_base[hw->txr_next];
bzero((void *)tx_cmd, sizeof(q80_tx_cmd_t));
bytes = QL_MIN((sizeof(q80_tx_cmd_t)), hdr_len);
bcopy(src, tx_cmd, bytes);
src += bytes;
hdr_len -= bytes;
hw->txr_next =
(hw->txr_next + 1) & (NUM_TX_DESCRIPTORS - 1);
tx_cmd_count++;
}
}
hw->txr_free = hw->txr_free - tx_cmd_count;
QL_UPDATE_TX_PRODUCER_INDEX(ha, hw->txr_next);
QL_DPRINT8((dev, "%s: return\n", __func__));
return (0);
}
/*
* Name: qla_del_hw_if
* Function: Destroys the hardware specific entities corresponding to an
* Ethernet Interface
*/
void
qla_del_hw_if(qla_host_t *ha)
{
int i;
for (i = 0; i < ha->hw.num_sds_rings; i++)
QL_DISABLE_INTERRUPTS(ha, i);
qla_del_rcv_cntxt(ha);
qla_del_xmt_cntxt(ha);
ha->hw.flags.lro = 0;
}
/*
* Name: qla_init_hw_if
* Function: Creates the hardware specific entities corresponding to an
* Ethernet Interface - Transmit and Receive Contexts. Sets the MAC Address
* corresponding to the interface. Enables LRO if allowed.
*/
int
qla_init_hw_if(qla_host_t *ha)
{
device_t dev;
int i;
uint8_t bcast_mac[6];
qla_get_hw_caps(ha);
dev = ha->pci_dev;
for (i = 0; i < ha->hw.num_sds_rings; i++) {
bzero(ha->hw.dma_buf.sds_ring[i].dma_b,
ha->hw.dma_buf.sds_ring[i].size);
}
/*
* Create Receive Context
*/
if (qla_init_rcv_cntxt(ha)) {
return (-1);
}
ha->hw.rx_next = NUM_RX_DESCRIPTORS - 2;
ha->hw.rxj_next = NUM_RX_JUMBO_DESCRIPTORS - 2;
ha->hw.rx_in = ha->hw.rxj_in = 0;
/* Update the RDS Producer Indices */
QL_UPDATE_RDS_PRODUCER_INDEX(ha, 0, ha->hw.rx_next);
QL_UPDATE_RDS_PRODUCER_INDEX(ha, 1, ha->hw.rxj_next);
/*
* Create Transmit Context
*/
if (qla_init_xmt_cntxt(ha)) {
qla_del_rcv_cntxt(ha);
return (-1);
}
qla_config_mac_addr(ha, ha->hw.mac_addr,
(ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id, 1);
bcast_mac[0] = 0xFF; bcast_mac[1] = 0xFF; bcast_mac[2] = 0xFF;
bcast_mac[3] = 0xFF; bcast_mac[4] = 0xFF; bcast_mac[5] = 0xFF;
qla_config_mac_addr(ha, bcast_mac,
(ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id, 1);
qla_config_rss(ha, (ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id);
qla_config_intr_coalesce(ha, (ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id, 0);
for (i = 0; i < ha->hw.num_sds_rings; i++)
QL_ENABLE_INTERRUPTS(ha, i);
return (0);
}
/*
* Name: qla_init_rcv_cntxt
* Function: Creates the Receive Context.
*/
static int
qla_init_rcv_cntxt(qla_host_t *ha)
{
device_t dev;
qla_cdrp_t cdrp;
q80_rcv_cntxt_rsp_t *rsp;
q80_stat_desc_t *sdesc;
bus_addr_t phys_addr;
int i, j;
qla_hw_t *hw = &ha->hw;
dev = ha->pci_dev;
/*
* Create Receive Context
*/
for (i = 0; i < hw->num_sds_rings; i++) {
sdesc = (q80_stat_desc_t *)&hw->sds[i].sds_ring_base[0];
for (j = 0; j < NUM_STATUS_DESCRIPTORS; j++) {
sdesc->data[0] =
Q8_STAT_DESC_SET_OWNER(Q8_STAT_DESC_OWNER_FW);
}
}
phys_addr = ha->hw.rx_cntxt_req_paddr;
bzero(&cdrp, sizeof(qla_cdrp_t));
cdrp.cmd = Q8_CMD_CREATE_RX_CNTXT;
cdrp.cmd_arg1 = (uint32_t)(phys_addr >> 32);
cdrp.cmd_arg2 = (uint32_t)(phys_addr);
cdrp.cmd_arg3 = (uint32_t)(sizeof (q80_rcv_cntxt_req_t));
if (qla_issue_cmd(ha, &cdrp)) {
device_printf(dev, "%s: Q8_CMD_CREATE_RX_CNTXT failed\n",
__func__);
return (-1);
} else {
rsp = ha->hw.rx_cntxt_rsp;
QL_DPRINT2((dev, "%s: rcv cntxt successful"
" rds_ring_offset = 0x%08x"
" sds_ring_offset = 0x%08x"
" cntxt_state = 0x%08x"
" funcs_per_port = 0x%08x"
" num_rds_rings = 0x%04x"
" num_sds_rings = 0x%04x"
" cntxt_id = 0x%04x"
" phys_port = 0x%02x"
" virt_port = 0x%02x\n",
__func__,
rsp->rx_rsp.rds_ring_offset,
rsp->rx_rsp.sds_ring_offset,
rsp->rx_rsp.cntxt_state,
rsp->rx_rsp.funcs_per_port,
rsp->rx_rsp.num_rds_rings,
rsp->rx_rsp.num_sds_rings,
rsp->rx_rsp.cntxt_id,
rsp->rx_rsp.phys_port,
rsp->rx_rsp.virt_port));
for (i = 0; i < ha->hw.num_rds_rings; i++) {
QL_DPRINT2((dev,
"%s: rcv cntxt rds[%i].producer_reg = 0x%08x\n",
__func__, i, rsp->rds_rsp[i].producer_reg));
}
for (i = 0; i < ha->hw.num_sds_rings; i++) {
QL_DPRINT2((dev,
"%s: rcv cntxt sds[%i].consumer_reg = 0x%08x"
" sds[%i].intr_mask_reg = 0x%08x\n",
__func__, i, rsp->sds_rsp[i].consumer_reg,
i, rsp->sds_rsp[i].intr_mask_reg));
}
}
ha->hw.flags.init_rx_cnxt = 1;
return (0);
}
/*
* Name: qla_del_rcv_cntxt
* Function: Destroys the Receive Context.
*/
void
qla_del_rcv_cntxt(qla_host_t *ha)
{
qla_cdrp_t cdrp;
device_t dev = ha->pci_dev;
if (!ha->hw.flags.init_rx_cnxt)
return;
bzero(&cdrp, sizeof(qla_cdrp_t));
cdrp.cmd = Q8_CMD_DESTROY_RX_CNTXT;
cdrp.cmd_arg1 = (uint32_t) (ha->hw.rx_cntxt_rsp)->rx_rsp.cntxt_id;
if (qla_issue_cmd(ha, &cdrp)) {
device_printf(dev, "%s: Q8_CMD_DESTROY_RX_CNTXT failed\n",
__func__);
}
ha->hw.flags.init_rx_cnxt = 0;
}
/*
* Name: qla_init_xmt_cntxt
* Function: Creates the Transmit Context.
*/
static int
qla_init_xmt_cntxt(qla_host_t *ha)
{
bus_addr_t phys_addr;
device_t dev;
q80_tx_cntxt_rsp_t *tx_rsp;
qla_cdrp_t cdrp;
qla_hw_t *hw = &ha->hw;
dev = ha->pci_dev;
/*
* Create Transmit Context
*/
phys_addr = ha->hw.tx_cntxt_req_paddr;
tx_rsp = ha->hw.tx_cntxt_rsp;
hw->txr_comp = hw->txr_next = 0;
*(hw->tx_cons) = 0;
bzero(&cdrp, sizeof(qla_cdrp_t));
cdrp.cmd = Q8_CMD_CREATE_TX_CNTXT;
cdrp.cmd_arg1 = (uint32_t)(phys_addr >> 32);
cdrp.cmd_arg2 = (uint32_t)(phys_addr);
cdrp.cmd_arg3 = (uint32_t)(sizeof (q80_tx_cntxt_req_t));
if (qla_issue_cmd(ha, &cdrp)) {
device_printf(dev, "%s: Q8_CMD_CREATE_TX_CNTXT failed\n",
__func__);
return (-1);
} else {
ha->hw.tx_prod_reg = tx_rsp->producer_reg;
QL_DPRINT2((dev, "%s: tx cntxt successful"
" cntxt_state = 0x%08x "
" cntxt_id = 0x%04x "
" phys_port_id = 0x%02x "
" virt_port_id = 0x%02x "
" producer_reg = 0x%08x "
" intr_mask_reg = 0x%08x\n",
__func__, tx_rsp->cntxt_state, tx_rsp->cntxt_id,
tx_rsp->phys_port_id, tx_rsp->virt_port_id,
tx_rsp->producer_reg, tx_rsp->intr_mask_reg));
}
ha->hw.txr_free = NUM_TX_DESCRIPTORS;
ha->hw.flags.init_tx_cnxt = 1;
return (0);
}
/*
* Name: qla_del_xmt_cntxt
* Function: Destroys the Transmit Context.
*/
static void
qla_del_xmt_cntxt(qla_host_t *ha)
{
qla_cdrp_t cdrp;
device_t dev = ha->pci_dev;
if (!ha->hw.flags.init_tx_cnxt)
return;
bzero(&cdrp, sizeof(qla_cdrp_t));
cdrp.cmd = Q8_CMD_DESTROY_TX_CNTXT;
cdrp.cmd_arg1 = (uint32_t) (ha->hw.tx_cntxt_rsp)->cntxt_id;
if (qla_issue_cmd(ha, &cdrp)) {
device_printf(dev, "%s: Q8_CMD_DESTROY_TX_CNTXT failed\n",
__func__);
}
ha->hw.flags.init_tx_cnxt = 0;
}
/*
* Name: qla_get_max_rds
* Function: Returns the maximum number of Receive Descriptor Rings per context.
*/
static int
qla_get_max_rds(qla_host_t *ha)
{
qla_cdrp_t cdrp;
device_t dev;
dev = ha->pci_dev;
bzero(&cdrp, sizeof(qla_cdrp_t));
cdrp.cmd = Q8_CMD_RD_MAX_RDS_PER_CNTXT;
if (qla_issue_cmd(ha, &cdrp)) {
device_printf(dev, "%s: Q8_CMD_RD_MAX_RDS_PER_CNTXT failed\n",
__func__);
return (-1);
} else {
ha->hw.max_rds_per_cntxt = cdrp.rsp_arg1;
QL_DPRINT2((dev, "%s: max_rds_per_context 0x%08x\n",
__func__, ha->hw.max_rds_per_cntxt));
}
return 0;
}
/*
* Name: qla_get_max_sds
* Function: Returns the maximum number of Status Descriptor Rings per context.
*/
static int
qla_get_max_sds(qla_host_t *ha)
{
qla_cdrp_t cdrp;
device_t dev;
dev = ha->pci_dev;
bzero(&cdrp, sizeof(qla_cdrp_t));
cdrp.cmd = Q8_CMD_RD_MAX_SDS_PER_CNTXT;
if (qla_issue_cmd(ha, &cdrp)) {
device_printf(dev, "%s: Q8_CMD_RD_MAX_RDS_PER_CNTXT failed\n",
__func__);
return (-1);
} else {
ha->hw.max_sds_per_cntxt = cdrp.rsp_arg1;
QL_DPRINT2((dev, "%s: max_sds_per_context 0x%08x\n",
__func__, ha->hw.max_sds_per_cntxt));
}
return 0;
}
/*
* Name: qla_get_max_rules
* Function: Returns the maximum number of Rules per context.
*/
static int
qla_get_max_rules(qla_host_t *ha)
{
qla_cdrp_t cdrp;
device_t dev;
dev = ha->pci_dev;
bzero(&cdrp, sizeof(qla_cdrp_t));
cdrp.cmd = Q8_CMD_RD_MAX_RULES_PER_CNTXT;
if (qla_issue_cmd(ha, &cdrp)) {
device_printf(dev, "%s: Q8_CMD_RD_MAX_RULES_PER_CNTXT failed\n",
__func__);
return (-1);
} else {
ha->hw.max_rules_per_cntxt = cdrp.rsp_arg1;
QL_DPRINT2((dev, "%s: max_rules_per_cntxt 0x%08x\n",
__func__, ha->hw.max_rules_per_cntxt));
}
return 0;
}
/*
* Name: qla_get_max_rcv_cntxts
* Function: Returns the maximum number of Receive Contexts supported.
*/
static int
qla_get_max_rcv_cntxts(qla_host_t *ha)
{
qla_cdrp_t cdrp;
device_t dev;
dev = ha->pci_dev;
bzero(&cdrp, sizeof(qla_cdrp_t));
cdrp.cmd = Q8_CMD_RD_MAX_RX_CNTXT;
if (qla_issue_cmd(ha, &cdrp)) {
device_printf(dev, "%s: Q8_CMD_RD_MAX_RX_CNTXT failed\n",
__func__);
return (-1);
} else {
ha->hw.max_rcv_cntxts = cdrp.rsp_arg1;
QL_DPRINT2((dev, "%s: max_rcv_cntxts 0x%08x\n",
__func__, ha->hw.max_rcv_cntxts));
}
return 0;
}
/*
* Name: qla_get_max_tx_cntxts
* Function: Returns the maximum number of Transmit Contexts supported.
*/
static int
qla_get_max_tx_cntxts(qla_host_t *ha)
{
qla_cdrp_t cdrp;
device_t dev;
dev = ha->pci_dev;
bzero(&cdrp, sizeof(qla_cdrp_t));
cdrp.cmd = Q8_CMD_RD_MAX_TX_CNTXT;
if (qla_issue_cmd(ha, &cdrp)) {
device_printf(dev, "%s: Q8_CMD_RD_MAX_TX_CNTXT failed\n",
__func__);
return (-1);
} else {
ha->hw.max_xmt_cntxts = cdrp.rsp_arg1;
QL_DPRINT2((dev, "%s: max_xmt_cntxts 0x%08x\n",
__func__, ha->hw.max_xmt_cntxts));
}
return 0;
}
/*
* Name: qla_get_max_mtu
* Function: Returns the MTU supported for a context.
*/
static int
qla_get_max_mtu(qla_host_t *ha)
{
qla_cdrp_t cdrp;
device_t dev;
dev = ha->pci_dev;
bzero(&cdrp, sizeof(qla_cdrp_t));
cdrp.cmd = Q8_CMD_RD_MAX_MTU;
if (qla_issue_cmd(ha, &cdrp)) {
device_printf(dev, "%s: Q8_CMD_RD_MAX_MTU failed\n", __func__);
return (-1);
} else {
ha->hw.max_mtu = cdrp.rsp_arg1;
QL_DPRINT2((dev, "%s: max_mtu 0x%08x\n", __func__,
ha->hw.max_mtu));
}
return 0;
}
/*
* Name: qla_set_max_mtu
* Function:
* Sets the maximum transfer unit size for the specified rcv context.
*/
int
qla_set_max_mtu(qla_host_t *ha, uint32_t mtu, uint16_t cntxt_id)
{
qla_cdrp_t cdrp;
device_t dev;
dev = ha->pci_dev;
bzero(&cdrp, sizeof(qla_cdrp_t));
cdrp.cmd = Q8_CMD_SET_MTU;
cdrp.cmd_arg1 = (uint32_t)cntxt_id;
cdrp.cmd_arg2 = mtu;
if (qla_issue_cmd(ha, &cdrp)) {
device_printf(dev, "%s: Q8_CMD_RD_MAX_MTU failed\n", __func__);
return (-1);
} else {
ha->hw.max_mtu = cdrp.rsp_arg1;
}
return 0;
}
/*
* Name: qla_get_max_lro
* Function: Returns the maximum number of TCP Connection which can be supported
* with LRO.
*/
static int
qla_get_max_lro(qla_host_t *ha)
{
qla_cdrp_t cdrp;
device_t dev;
dev = ha->pci_dev;
bzero(&cdrp, sizeof(qla_cdrp_t));
cdrp.cmd = Q8_CMD_RD_MAX_LRO;
if (qla_issue_cmd(ha, &cdrp)) {
device_printf(dev, "%s: Q8_CMD_RD_MAX_LRO failed\n", __func__);
return (-1);
} else {
ha->hw.max_lro = cdrp.rsp_arg1;
QL_DPRINT2((dev, "%s: max_lro 0x%08x\n", __func__,
ha->hw.max_lro));
}
return 0;
}
/*
* Name: qla_get_flow_control
* Function: Returns the Receive/Transmit Flow Control (PAUSE) settings for
* PCI function.
*/
static int
qla_get_flow_control(qla_host_t *ha)
{
qla_cdrp_t cdrp;
device_t dev;
dev = ha->pci_dev;
bzero(&cdrp, sizeof(qla_cdrp_t));
cdrp.cmd = Q8_CMD_GET_FLOW_CNTRL;
if (qla_issue_cmd(ha, &cdrp)) {
device_printf(dev, "%s: Q8_CMD_GET_FLOW_CNTRL failed\n",
__func__);
return (-1);
} else {
QL_DPRINT2((dev, "%s: flow control 0x%08x\n", __func__,
cdrp.rsp_arg1));
}
return 0;
}
/*
* Name: qla_get_flow_control
* Function: Retrieves hardware capabilities
*/
void
qla_get_hw_caps(qla_host_t *ha)
{
//qla_read_mac_addr(ha);
qla_get_max_rds(ha);
qla_get_max_sds(ha);
qla_get_max_rules(ha);
qla_get_max_rcv_cntxts(ha);
qla_get_max_tx_cntxts(ha);
qla_get_max_mtu(ha);
qla_get_max_lro(ha);
qla_get_flow_control(ha);
return;
}
/*
* Name: qla_hw_set_multi
* Function: Sets the Multicast Addresses provided the host O.S into the
* hardware (for the given interface)
*/
void
qla_hw_set_multi(qla_host_t *ha, uint8_t *mta, uint32_t mcnt,
uint32_t add_multi)
{
q80_rcv_cntxt_rsp_t *rsp;
int i;
rsp = ha->hw.rx_cntxt_rsp;
for (i = 0; i < mcnt; i++) {
qla_config_mac_addr(ha, mta, rsp->rx_rsp.cntxt_id, add_multi);
mta += Q8_MAC_ADDR_LEN;
}
return;
}
/*
* Name: qla_hw_tx_done_locked
* Function: Handle Transmit Completions
*/
static void
qla_hw_tx_done_locked(qla_host_t *ha)
{
qla_tx_buf_t *txb;
qla_hw_t *hw = &ha->hw;
uint32_t comp_idx, comp_count = 0;
/* retrieve index of last entry in tx ring completed */
comp_idx = qla_le32_to_host(*(hw->tx_cons));
while (comp_idx != hw->txr_comp) {
txb = &ha->tx_buf[hw->txr_comp];
hw->txr_comp++;
if (hw->txr_comp == NUM_TX_DESCRIPTORS)
hw->txr_comp = 0;
comp_count++;
if (txb->m_head) {
bus_dmamap_sync(ha->tx_tag, txb->map,
BUS_DMASYNC_POSTWRITE);
bus_dmamap_unload(ha->tx_tag, txb->map);
bus_dmamap_destroy(ha->tx_tag, txb->map);
m_freem(txb->m_head);
txb->map = (bus_dmamap_t)0;
txb->m_head = NULL;
}
}
hw->txr_free += comp_count;
QL_DPRINT8((ha->pci_dev, "%s: return [c,f, p, pn][%d, %d, %d, %d]\n", __func__,
hw->txr_comp, hw->txr_free, hw->txr_next, READ_REG32(ha, (ha->hw.tx_prod_reg + 0x1b2000))));
return;
}
/*
* Name: qla_hw_tx_done
* Function: Handle Transmit Completions
*/
void
qla_hw_tx_done(qla_host_t *ha)
{
if (!mtx_trylock(&ha->tx_lock)) {
QL_DPRINT8((ha->pci_dev,
"%s: !mtx_trylock(&ha->tx_lock)\n", __func__));
return;
}
qla_hw_tx_done_locked(ha);
if (ha->hw.txr_free > free_pkt_thres)
ha->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
mtx_unlock(&ha->tx_lock);
return;
}
void
qla_update_link_state(qla_host_t *ha)
{
uint32_t link_state;
uint32_t prev_link_state;
if (!(ha->ifp->if_drv_flags & IFF_DRV_RUNNING)) {
ha->hw.flags.link_up = 0;
return;
}
link_state = READ_REG32(ha, Q8_LINK_STATE);
prev_link_state = ha->hw.flags.link_up;
if (ha->pci_func == 0)
ha->hw.flags.link_up = (((link_state & 0xF) == 1)? 1 : 0);
else
ha->hw.flags.link_up = ((((link_state >> 4)& 0xF) == 1)? 1 : 0);
if (prev_link_state != ha->hw.flags.link_up) {
if (ha->hw.flags.link_up) {
if_link_state_change(ha->ifp, LINK_STATE_UP);
} else {
if_link_state_change(ha->ifp, LINK_STATE_DOWN);
}
}
}
int
qla_config_lro(qla_host_t *ha)
{
int i;
qla_hw_t *hw = &ha->hw;
struct lro_ctrl *lro;
for (i = 0; i < hw->num_sds_rings; i++) {
lro = &hw->sds[i].lro;
if (tcp_lro_init(lro)) {
device_printf(ha->pci_dev, "%s: tcp_lro_init failed\n",
__func__);
return (-1);
}
lro->ifp = ha->ifp;
}
ha->flags.lro_init = 1;
QL_DPRINT2((ha->pci_dev, "%s: LRO initialized\n", __func__));
return (0);
}
void
qla_free_lro(qla_host_t *ha)
{
int i;
qla_hw_t *hw = &ha->hw;
struct lro_ctrl *lro;
if (!ha->flags.lro_init)
return;
for (i = 0; i < hw->num_sds_rings; i++) {
lro = &hw->sds[i].lro;
tcp_lro_free(lro);
}
ha->flags.lro_init = 0;
}
void
qla_hw_stop_rcv(qla_host_t *ha)
{
int i, done, count = 100;
while (count--) {
done = 1;
for (i = 0; i < ha->hw.num_sds_rings; i++) {
if (ha->hw.sds[i].rcv_active)
done = 0;
}
if (done)
break;
else
qla_mdelay(__func__, 10);
}
}
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