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freebsd/sys/dev/qlxgbe/ql_isr.c

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/*
* Copyright (c) 2013-2014 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: ql_isr.c
* Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "ql_os.h"
#include "ql_hw.h"
#include "ql_def.h"
#include "ql_inline.h"
#include "ql_ver.h"
#include "ql_glbl.h"
#include "ql_dbg.h"
static void qla_replenish_normal_rx(qla_host_t *ha, qla_sds_t *sdsp,
uint32_t r_idx);
static void
qla_rcv_error(qla_host_t *ha)
{
ha->flags.stop_rcv = 1;
ha->qla_initiate_recovery = 1;
}
/*
* Name: qla_rx_intr
* Function: Handles normal ethernet frames received
*/
static void
qla_rx_intr(qla_host_t *ha, qla_sgl_rcv_t *sgc, uint32_t sds_idx)
{
qla_rx_buf_t *rxb;
struct mbuf *mp = NULL, *mpf = NULL, *mpl = NULL;
struct ifnet *ifp = ha->ifp;
qla_sds_t *sdsp;
struct ether_vlan_header *eh;
uint32_t i, rem_len = 0;
uint32_t r_idx = 0;
qla_rx_ring_t *rx_ring;
if (ha->hw.num_rds_rings > 1)
r_idx = sds_idx;
ha->hw.rds[r_idx].count++;
sdsp = &ha->hw.sds[sds_idx];
rx_ring = &ha->rx_ring[r_idx];
for (i = 0; i < sgc->num_handles; i++) {
rxb = &rx_ring->rx_buf[sgc->handle[i] & 0x7FFF];
QL_ASSERT(ha, (rxb != NULL),
("%s: [sds_idx]=[%d] rxb != NULL\n", __func__,\
sds_idx));
if ((rxb == NULL) || QL_ERR_INJECT(ha, INJCT_RX_RXB_INVAL)) {
/* log the error */
device_printf(ha->pci_dev,
"%s invalid rxb[%d, %d, 0x%04x]\n",
__func__, sds_idx, i, sgc->handle[i]);
qla_rcv_error(ha);
return;
}
mp = rxb->m_head;
if (i == 0)
mpf = mp;
QL_ASSERT(ha, (mp != NULL),
("%s: [sds_idx]=[%d] mp != NULL\n", __func__,\
sds_idx));
bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_POSTREAD);
rxb->m_head = NULL;
rxb->next = sdsp->rxb_free;
sdsp->rxb_free = rxb;
sdsp->rx_free++;
if ((mp == NULL) || QL_ERR_INJECT(ha, INJCT_RX_MP_NULL)) {
/* log the error */
device_printf(ha->pci_dev,
"%s mp == NULL [%d, %d, 0x%04x]\n",
__func__, sds_idx, i, sgc->handle[i]);
qla_rcv_error(ha);
return;
}
if (i == 0) {
mpl = mpf = mp;
mp->m_flags |= M_PKTHDR;
mp->m_pkthdr.len = sgc->pkt_length;
mp->m_pkthdr.rcvif = ifp;
rem_len = mp->m_pkthdr.len;
} else {
mp->m_flags &= ~M_PKTHDR;
mpl->m_next = mp;
mpl = mp;
rem_len = rem_len - mp->m_len;
}
}
mpl->m_len = rem_len;
eh = mtod(mpf, struct ether_vlan_header *);
if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN)) {
uint32_t *data = (uint32_t *)eh;
mpf->m_pkthdr.ether_vtag = ntohs(eh->evl_tag);
mpf->m_flags |= M_VLANTAG;
*(data + 3) = *(data + 2);
*(data + 2) = *(data + 1);
*(data + 1) = *data;
m_adj(mpf, ETHER_VLAN_ENCAP_LEN);
}
if (sgc->chksum_status == Q8_STAT_DESC_STATUS_CHKSUM_OK) {
mpf->m_pkthdr.csum_flags = CSUM_IP_CHECKED | CSUM_IP_VALID |
CSUM_DATA_VALID | CSUM_PSEUDO_HDR;
mpf->m_pkthdr.csum_data = 0xFFFF;
} else {
mpf->m_pkthdr.csum_flags = 0;
}
ifp->if_ipackets++;
mpf->m_pkthdr.flowid = sgc->rss_hash;
mpf->m_flags |= M_FLOWID;
(*ifp->if_input)(ifp, mpf);
if (sdsp->rx_free > ha->std_replenish)
qla_replenish_normal_rx(ha, sdsp, r_idx);
return;
}
#define QLA_TCP_HDR_SIZE 20
#define QLA_TCP_TS_OPTION_SIZE 12
/*
* Name: qla_lro_intr
* Function: Handles normal ethernet frames received
*/
static int
qla_lro_intr(qla_host_t *ha, qla_sgl_lro_t *sgc, uint32_t sds_idx)
{
qla_rx_buf_t *rxb;
struct mbuf *mp = NULL, *mpf = NULL, *mpl = NULL;
struct ifnet *ifp = ha->ifp;
qla_sds_t *sdsp;
struct ether_vlan_header *eh;
uint32_t i, rem_len = 0, pkt_length, iplen;
struct tcphdr *th;
struct ip *ip = NULL;
struct ip6_hdr *ip6 = NULL;
uint16_t etype;
uint32_t r_idx = 0;
qla_rx_ring_t *rx_ring;
if (ha->hw.num_rds_rings > 1)
r_idx = sds_idx;
ha->hw.rds[r_idx].count++;
rx_ring = &ha->rx_ring[r_idx];
ha->lro_pkt_count++;
sdsp = &ha->hw.sds[sds_idx];
pkt_length = sgc->payload_length + sgc->l4_offset;
if (sgc->flags & Q8_LRO_COMP_TS) {
pkt_length += QLA_TCP_HDR_SIZE + QLA_TCP_TS_OPTION_SIZE;
} else {
pkt_length += QLA_TCP_HDR_SIZE;
}
ha->lro_bytes += pkt_length;
for (i = 0; i < sgc->num_handles; i++) {
rxb = &rx_ring->rx_buf[sgc->handle[i] & 0x7FFF];
QL_ASSERT(ha, (rxb != NULL),
("%s: [sds_idx]=[%d] rxb != NULL\n", __func__,\
sds_idx));
if ((rxb == NULL) || QL_ERR_INJECT(ha, INJCT_LRO_RXB_INVAL)) {
/* log the error */
device_printf(ha->pci_dev,
"%s invalid rxb[%d, %d, 0x%04x]\n",
__func__, sds_idx, i, sgc->handle[i]);
qla_rcv_error(ha);
return (0);
}
mp = rxb->m_head;
if (i == 0)
mpf = mp;
QL_ASSERT(ha, (mp != NULL),
("%s: [sds_idx]=[%d] mp != NULL\n", __func__,\
sds_idx));
bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_POSTREAD);
rxb->m_head = NULL;
rxb->next = sdsp->rxb_free;
sdsp->rxb_free = rxb;
sdsp->rx_free++;
if ((mp == NULL) || QL_ERR_INJECT(ha, INJCT_LRO_MP_NULL)) {
/* log the error */
device_printf(ha->pci_dev,
"%s mp == NULL [%d, %d, 0x%04x]\n",
__func__, sds_idx, i, sgc->handle[i]);
qla_rcv_error(ha);
return (0);
}
if (i == 0) {
mpl = mpf = mp;
mp->m_flags |= M_PKTHDR;
mp->m_pkthdr.len = pkt_length;
mp->m_pkthdr.rcvif = ifp;
rem_len = mp->m_pkthdr.len;
} else {
mp->m_flags &= ~M_PKTHDR;
mpl->m_next = mp;
mpl = mp;
rem_len = rem_len - mp->m_len;
}
}
mpl->m_len = rem_len;
th = (struct tcphdr *)(mpf->m_data + sgc->l4_offset);
if (sgc->flags & Q8_LRO_COMP_PUSH_BIT)
th->th_flags |= TH_PUSH;
m_adj(mpf, sgc->l2_offset);
eh = mtod(mpf, struct ether_vlan_header *);
if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN)) {
uint32_t *data = (uint32_t *)eh;
mpf->m_pkthdr.ether_vtag = ntohs(eh->evl_tag);
mpf->m_flags |= M_VLANTAG;
*(data + 3) = *(data + 2);
*(data + 2) = *(data + 1);
*(data + 1) = *data;
m_adj(mpf, ETHER_VLAN_ENCAP_LEN);
etype = ntohs(eh->evl_proto);
} else {
etype = ntohs(eh->evl_encap_proto);
}
if (etype == ETHERTYPE_IP) {
ip = (struct ip *)(mpf->m_data + ETHER_HDR_LEN);
iplen = (ip->ip_hl << 2) + (th->th_off << 2) +
sgc->payload_length;
ip->ip_len = htons(iplen);
ha->ipv4_lro++;
} else if (etype == ETHERTYPE_IPV6) {
ip6 = (struct ip6_hdr *)(mpf->m_data + ETHER_HDR_LEN);
iplen = (th->th_off << 2) + sgc->payload_length;
ip6->ip6_plen = htons(iplen);
ha->ipv6_lro++;
} else {
m_freem(mpf);
if (sdsp->rx_free > ha->std_replenish)
qla_replenish_normal_rx(ha, sdsp, r_idx);
return 0;
}
mpf->m_pkthdr.csum_flags = CSUM_IP_CHECKED | CSUM_IP_VALID |
CSUM_DATA_VALID | CSUM_PSEUDO_HDR;
mpf->m_pkthdr.csum_data = 0xFFFF;
mpf->m_pkthdr.flowid = sgc->rss_hash;
mpf->m_flags |= M_FLOWID;
ifp->if_ipackets++;
(*ifp->if_input)(ifp, mpf);
if (sdsp->rx_free > ha->std_replenish)
qla_replenish_normal_rx(ha, sdsp, r_idx);
return (0);
}
static int
qla_rcv_cont_sds(qla_host_t *ha, uint32_t sds_idx, uint32_t comp_idx,
uint32_t dcount, uint16_t *handle, uint16_t *nhandles)
{
uint32_t i;
uint16_t num_handles;
q80_stat_desc_t *sdesc;
uint32_t opcode;
*nhandles = 0;
dcount--;
for (i = 0; i < dcount; i++) {
comp_idx = (comp_idx + 1) & (NUM_STATUS_DESCRIPTORS-1);
sdesc = (q80_stat_desc_t *)
&ha->hw.sds[sds_idx].sds_ring_base[comp_idx];
opcode = Q8_STAT_DESC_OPCODE((sdesc->data[1]));
if (!opcode) {
device_printf(ha->pci_dev, "%s: opcode=0 %p %p\n",
__func__, (void *)sdesc->data[0],
(void *)sdesc->data[1]);
return -1;
}
num_handles = Q8_SGL_STAT_DESC_NUM_HANDLES((sdesc->data[1]));
if (!num_handles) {
device_printf(ha->pci_dev, "%s: opcode=0 %p %p\n",
__func__, (void *)sdesc->data[0],
(void *)sdesc->data[1]);
return -1;
}
if (QL_ERR_INJECT(ha, INJCT_NUM_HNDLE_INVALID))
num_handles = -1;
switch (num_handles) {
case 1:
*handle++ = Q8_SGL_STAT_DESC_HANDLE1((sdesc->data[0]));
break;
case 2:
*handle++ = Q8_SGL_STAT_DESC_HANDLE1((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE2((sdesc->data[0]));
break;
case 3:
*handle++ = Q8_SGL_STAT_DESC_HANDLE1((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE2((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE3((sdesc->data[0]));
break;
case 4:
*handle++ = Q8_SGL_STAT_DESC_HANDLE1((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE2((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE3((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE4((sdesc->data[0]));
break;
case 5:
*handle++ = Q8_SGL_STAT_DESC_HANDLE1((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE2((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE3((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE4((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE5((sdesc->data[1]));
break;
case 6:
*handle++ = Q8_SGL_STAT_DESC_HANDLE1((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE2((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE3((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE4((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE5((sdesc->data[1]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE6((sdesc->data[1]));
break;
case 7:
*handle++ = Q8_SGL_STAT_DESC_HANDLE1((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE2((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE3((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE4((sdesc->data[0]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE5((sdesc->data[1]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE6((sdesc->data[1]));
*handle++ = Q8_SGL_STAT_DESC_HANDLE7((sdesc->data[1]));
break;
default:
device_printf(ha->pci_dev,
"%s: invalid num handles %p %p\n",
__func__, (void *)sdesc->data[0],
(void *)sdesc->data[1]);
QL_ASSERT(ha, (0),\
("%s: %s [nh, sds, d0, d1]=[%d, %d, %p, %p]\n",
__func__, "invalid num handles", sds_idx, num_handles,
(void *)sdesc->data[0],(void *)sdesc->data[1]));
qla_rcv_error(ha);
return 0;
}
*nhandles = *nhandles + num_handles;
}
return 0;
}
/*
* Name: qla_rcv_isr
* Function: Main Interrupt Service Routine
*/
static uint32_t
qla_rcv_isr(qla_host_t *ha, uint32_t sds_idx, uint32_t count)
{
device_t dev;
qla_hw_t *hw;
uint32_t comp_idx, c_idx = 0, desc_count = 0, opcode;
volatile q80_stat_desc_t *sdesc, *sdesc0 = NULL;
uint32_t ret = 0;
qla_sgl_comp_t sgc;
uint16_t nhandles;
uint32_t sds_replenish_threshold = 0;
dev = ha->pci_dev;
hw = &ha->hw;
hw->sds[sds_idx].rcv_active = 1;
if (ha->flags.stop_rcv) {
hw->sds[sds_idx].rcv_active = 0;
return 0;
}
QL_DPRINT2(ha, (dev, "%s: [%d]enter\n", __func__, sds_idx));
/*
* receive interrupts
*/
comp_idx = hw->sds[sds_idx].sdsr_next;
while (count-- && !ha->flags.stop_rcv) {
sdesc = (q80_stat_desc_t *)
&hw->sds[sds_idx].sds_ring_base[comp_idx];
opcode = Q8_STAT_DESC_OPCODE((sdesc->data[1]));
if (!opcode)
break;
hw->sds[sds_idx].intr_count++;
switch (opcode) {
case Q8_STAT_DESC_OPCODE_RCV_PKT:
desc_count = 1;
bzero(&sgc, sizeof(qla_sgl_comp_t));
sgc.rcv.pkt_length =
Q8_STAT_DESC_TOTAL_LENGTH((sdesc->data[0]));
sgc.rcv.num_handles = 1;
sgc.rcv.handle[0] =
Q8_STAT_DESC_HANDLE((sdesc->data[0]));
sgc.rcv.chksum_status =
Q8_STAT_DESC_STATUS((sdesc->data[1]));
sgc.rcv.rss_hash =
Q8_STAT_DESC_RSS_HASH((sdesc->data[0]));
if (Q8_STAT_DESC_VLAN((sdesc->data[1]))) {
sgc.rcv.vlan_tag =
Q8_STAT_DESC_VLAN_ID((sdesc->data[1]));
}
qla_rx_intr(ha, &sgc.rcv, sds_idx);
break;
case Q8_STAT_DESC_OPCODE_SGL_RCV:
desc_count =
Q8_STAT_DESC_COUNT_SGL_RCV((sdesc->data[1]));
if (desc_count > 1) {
c_idx = (comp_idx + desc_count -1) &
(NUM_STATUS_DESCRIPTORS-1);
sdesc0 = (q80_stat_desc_t *)
&hw->sds[sds_idx].sds_ring_base[c_idx];
if (Q8_STAT_DESC_OPCODE((sdesc0->data[1])) !=
Q8_STAT_DESC_OPCODE_CONT) {
desc_count = 0;
break;
}
}
bzero(&sgc, sizeof(qla_sgl_comp_t));
sgc.rcv.pkt_length =
Q8_STAT_DESC_TOTAL_LENGTH_SGL_RCV(\
(sdesc->data[0]));
sgc.rcv.chksum_status =
Q8_STAT_DESC_STATUS((sdesc->data[1]));
sgc.rcv.rss_hash =
Q8_STAT_DESC_RSS_HASH((sdesc->data[0]));
if (Q8_STAT_DESC_VLAN((sdesc->data[1]))) {
sgc.rcv.vlan_tag =
Q8_STAT_DESC_VLAN_ID((sdesc->data[1]));
}
QL_ASSERT(ha, (desc_count <= 2) ,\
("%s: [sds_idx, data0, data1]="\
"%d, %p, %p]\n", __func__, sds_idx,\
(void *)sdesc->data[0],\
(void *)sdesc->data[1]));
sgc.rcv.num_handles = 1;
sgc.rcv.handle[0] =
Q8_STAT_DESC_HANDLE((sdesc->data[0]));
if (qla_rcv_cont_sds(ha, sds_idx, comp_idx, desc_count,
&sgc.rcv.handle[1], &nhandles)) {
device_printf(dev,
"%s: [sds_idx, dcount, data0, data1]="
"[%d, %d, 0x%llx, 0x%llx]\n",
__func__, sds_idx, desc_count,
(long long unsigned int)sdesc->data[0],
(long long unsigned int)sdesc->data[1]);
desc_count = 0;
break;
}
sgc.rcv.num_handles += nhandles;
qla_rx_intr(ha, &sgc.rcv, sds_idx);
break;
case Q8_STAT_DESC_OPCODE_SGL_LRO:
desc_count =
Q8_STAT_DESC_COUNT_SGL_LRO((sdesc->data[1]));
if (desc_count > 1) {
c_idx = (comp_idx + desc_count -1) &
(NUM_STATUS_DESCRIPTORS-1);
sdesc0 = (q80_stat_desc_t *)
&hw->sds[sds_idx].sds_ring_base[c_idx];
if (Q8_STAT_DESC_OPCODE((sdesc0->data[1])) !=
Q8_STAT_DESC_OPCODE_CONT) {
desc_count = 0;
break;
}
}
bzero(&sgc, sizeof(qla_sgl_comp_t));
sgc.lro.payload_length =
Q8_STAT_DESC_TOTAL_LENGTH_SGL_RCV((sdesc->data[0]));
sgc.lro.rss_hash =
Q8_STAT_DESC_RSS_HASH((sdesc->data[0]));
sgc.lro.num_handles = 1;
sgc.lro.handle[0] =
Q8_STAT_DESC_HANDLE((sdesc->data[0]));
if (Q8_SGL_LRO_STAT_TS((sdesc->data[1])))
sgc.lro.flags |= Q8_LRO_COMP_TS;
if (Q8_SGL_LRO_STAT_PUSH_BIT((sdesc->data[1])))
sgc.lro.flags |= Q8_LRO_COMP_PUSH_BIT;
sgc.lro.l2_offset =
Q8_SGL_LRO_STAT_L2_OFFSET((sdesc->data[1]));
sgc.lro.l4_offset =
Q8_SGL_LRO_STAT_L4_OFFSET((sdesc->data[1]));
if (Q8_STAT_DESC_VLAN((sdesc->data[1]))) {
sgc.lro.vlan_tag =
Q8_STAT_DESC_VLAN_ID((sdesc->data[1]));
}
QL_ASSERT(ha, (desc_count <= 7) ,\
("%s: [sds_idx, data0, data1]="\
"[%d, 0x%llx, 0x%llx]\n",\
__func__, sds_idx,\
(long long unsigned int)sdesc->data[0],\
(long long unsigned int)sdesc->data[1]));
if (qla_rcv_cont_sds(ha, sds_idx, comp_idx,
desc_count, &sgc.lro.handle[1], &nhandles)) {
device_printf(dev,
"%s: [sds_idx, data0, data1]="\
"[%d, 0x%llx, 0x%llx]\n",\
__func__, sds_idx,\
(long long unsigned int)sdesc->data[0],\
(long long unsigned int)sdesc->data[1]);
desc_count = 0;
break;
}
sgc.lro.num_handles += nhandles;
if (qla_lro_intr(ha, &sgc.lro, sds_idx)) {
device_printf(dev,
"%s: [sds_idx, data0, data1]="\
"[%d, 0x%llx, 0x%llx]\n",\
__func__, sds_idx,\
(long long unsigned int)sdesc->data[0],\
(long long unsigned int)sdesc->data[1]);
device_printf(dev,
"%s: [comp_idx, c_idx, dcount, nhndls]="\
"[%d, %d, %d, %d]\n",\
__func__, comp_idx, c_idx, desc_count,
sgc.lro.num_handles);
if (desc_count > 1) {
device_printf(dev,
"%s: [sds_idx, data0, data1]="\
"[%d, 0x%llx, 0x%llx]\n",\
__func__, sds_idx,\
(long long unsigned int)sdesc0->data[0],\
(long long unsigned int)sdesc0->data[1]);
}
}
break;
default:
device_printf(dev, "%s: default 0x%llx!\n", __func__,
(long long unsigned int)sdesc->data[0]);
break;
}
if (desc_count == 0)
break;
sds_replenish_threshold += desc_count;
while (desc_count--) {
sdesc->data[0] = 0ULL;
sdesc->data[1] = 0ULL;
comp_idx = (comp_idx + 1) & (NUM_STATUS_DESCRIPTORS-1);
sdesc = (q80_stat_desc_t *)
&hw->sds[sds_idx].sds_ring_base[comp_idx];
}
if (sds_replenish_threshold > ha->hw.sds_cidx_thres) {
sds_replenish_threshold = 0;
if (hw->sds[sds_idx].sdsr_next != comp_idx) {
QL_UPDATE_SDS_CONSUMER_INDEX(ha, sds_idx,\
comp_idx);
}
hw->sds[sds_idx].sdsr_next = comp_idx;
}
}
if (ha->flags.stop_rcv)
goto qla_rcv_isr_exit;
if (hw->sds[sds_idx].sdsr_next != comp_idx) {
QL_UPDATE_SDS_CONSUMER_INDEX(ha, sds_idx, comp_idx);
}
hw->sds[sds_idx].sdsr_next = comp_idx;
sdesc = (q80_stat_desc_t *)&hw->sds[sds_idx].sds_ring_base[comp_idx];
opcode = Q8_STAT_DESC_OPCODE((sdesc->data[1]));
if (opcode)
ret = -1;
qla_rcv_isr_exit:
hw->sds[sds_idx].rcv_active = 0;
return (ret);
}
void
ql_mbx_isr(void *arg)
{
qla_host_t *ha;
uint32_t data;
uint32_t prev_link_state;
ha = arg;
if (ha == NULL) {
device_printf(ha->pci_dev, "%s: arg == NULL\n", __func__);
return;
}
data = READ_REG32(ha, Q8_FW_MBOX_CNTRL);
if ((data & 0x3) != 0x1) {
WRITE_REG32(ha, ha->hw.mbx_intr_mask_offset, 0);
return;
}
data = READ_REG32(ha, Q8_FW_MBOX0);
if ((data & 0xF000) != 0x8000)
return;
data = data & 0xFFFF;
switch (data) {
case 0x8001: /* It's an AEN */
ha->hw.cable_oui = READ_REG32(ha, (Q8_FW_MBOX0 + 4));
data = READ_REG32(ha, (Q8_FW_MBOX0 + 8));
ha->hw.cable_length = data & 0xFFFF;
data = data >> 16;
ha->hw.link_speed = data & 0xFFF;
data = READ_REG32(ha, (Q8_FW_MBOX0 + 12));
prev_link_state = ha->hw.link_up;
ha->hw.link_up = (((data & 0xFF) == 0) ? 0 : 1);
if (prev_link_state != ha->hw.link_up) {
if (ha->hw.link_up)
if_link_state_change(ha->ifp, LINK_STATE_UP);
else
if_link_state_change(ha->ifp, LINK_STATE_DOWN);
}
ha->hw.module_type = ((data >> 8) & 0xFF);
ha->hw.flags.fduplex = (((data & 0xFF0000) == 0) ? 0 : 1);
ha->hw.flags.autoneg = (((data & 0xFF000000) == 0) ? 0 : 1);
data = READ_REG32(ha, (Q8_FW_MBOX0 + 16));
ha->hw.flags.loopback_mode = data & 0x03;
ha->hw.link_faults = (data >> 3) & 0xFF;
WRITE_REG32(ha, Q8_FW_MBOX_CNTRL, 0x0);
WRITE_REG32(ha, ha->hw.mbx_intr_mask_offset, 0x0);
break;
default:
device_printf(ha->pci_dev, "%s: AEN[0x%08x]\n", __func__, data);
WRITE_REG32(ha, Q8_FW_MBOX_CNTRL, 0x0);
WRITE_REG32(ha, ha->hw.mbx_intr_mask_offset, 0x0);
break;
}
return;
}
static void
qla_replenish_normal_rx(qla_host_t *ha, qla_sds_t *sdsp, uint32_t r_idx)
{
qla_rx_buf_t *rxb;
int count = sdsp->rx_free;
uint32_t rx_next;
qla_rdesc_t *rdesc;
/* we can play with this value via a sysctl */
uint32_t replenish_thresh = ha->hw.rds_pidx_thres;
rdesc = &ha->hw.rds[r_idx];
rx_next = rdesc->rx_next;
while (count--) {
rxb = sdsp->rxb_free;
if (rxb == NULL)
break;
sdsp->rxb_free = rxb->next;
sdsp->rx_free--;
if (ql_get_mbuf(ha, rxb, NULL) == 0) {
qla_set_hw_rcv_desc(ha, r_idx, rdesc->rx_in,
rxb->handle,
rxb->paddr, (rxb->m_head)->m_pkthdr.len);
rdesc->rx_in++;
if (rdesc->rx_in == NUM_RX_DESCRIPTORS)
rdesc->rx_in = 0;
rdesc->rx_next++;
if (rdesc->rx_next == NUM_RX_DESCRIPTORS)
rdesc->rx_next = 0;
} else {
device_printf(ha->pci_dev,
"%s: ql_get_mbuf [0,(%d),(%d)] failed\n",
__func__, rdesc->rx_in, rxb->handle);
rxb->m_head = NULL;
rxb->next = sdsp->rxb_free;
sdsp->rxb_free = rxb;
sdsp->rx_free++;
break;
}
if (replenish_thresh-- == 0) {
QL_UPDATE_RDS_PRODUCER_INDEX(ha, rdesc->prod_std,
rdesc->rx_next);
rx_next = rdesc->rx_next;
replenish_thresh = ha->hw.rds_pidx_thres;
}
}
if (rx_next != rdesc->rx_next) {
QL_UPDATE_RDS_PRODUCER_INDEX(ha, rdesc->prod_std,
rdesc->rx_next);
}
}
void
ql_isr(void *arg)
{
qla_ivec_t *ivec = arg;
qla_host_t *ha ;
int idx;
qla_hw_t *hw;
struct ifnet *ifp;
uint32_t ret = 0;
ha = ivec->ha;
hw = &ha->hw;
ifp = ha->ifp;
if ((idx = ivec->sds_idx) >= ha->hw.num_sds_rings)
return;
if (idx == 0)
taskqueue_enqueue(ha->tx_tq, &ha->tx_task);
ret = qla_rcv_isr(ha, idx, -1);
if (idx == 0)
taskqueue_enqueue(ha->tx_tq, &ha->tx_task);
if (!ha->flags.stop_rcv) {
QL_ENABLE_INTERRUPTS(ha, idx);
}
return;
}
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