1537078d8f
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.
414 lines
9.6 KiB
C
414 lines
9.6 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
|
|
*
|
|
* Copyright (c) 2011-2013 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_isr.c
|
|
* Author : David C Somayajulu, Qlogic Corporation, Aliso Viejo, CA 92656.
|
|
*/
|
|
|
|
#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 void qla_replenish_normal_rx(qla_host_t *ha, qla_sds_t *sdsp);
|
|
static void qla_replenish_jumbo_rx(qla_host_t *ha, qla_sds_t *sdsp);
|
|
|
|
/*
|
|
* Name: qla_rx_intr
|
|
* Function: Handles normal ethernet frames received
|
|
*/
|
|
static void
|
|
qla_rx_intr(qla_host_t *ha, uint64_t data, uint32_t sds_idx,
|
|
struct lro_ctrl *lro)
|
|
{
|
|
uint32_t idx, length, status, ring;
|
|
qla_rx_buf_t *rxb;
|
|
struct mbuf *mp;
|
|
struct ifnet *ifp = ha->ifp;
|
|
qla_sds_t *sdsp;
|
|
struct ether_vlan_header *eh;
|
|
|
|
sdsp = &ha->hw.sds[sds_idx];
|
|
|
|
ring = (uint32_t)Q8_STAT_DESC_TYPE(data);
|
|
idx = (uint32_t)Q8_STAT_DESC_HANDLE(data);
|
|
length = (uint32_t)Q8_STAT_DESC_TOTAL_LENGTH(data);
|
|
status = (uint32_t)Q8_STAT_DESC_STATUS(data);
|
|
|
|
if (ring == 0) {
|
|
if ((idx >= NUM_RX_DESCRIPTORS) || (length > MCLBYTES)) {
|
|
device_printf(ha->pci_dev, "%s: ring[%d] index[0x%08x]"
|
|
" len[0x%08x] invalid\n",
|
|
__func__, ring, idx, length);
|
|
return;
|
|
}
|
|
} else {
|
|
if ((idx >= NUM_RX_JUMBO_DESCRIPTORS)||(length > MJUM9BYTES)) {
|
|
device_printf(ha->pci_dev, "%s: ring[%d] index[0x%08x]"
|
|
" len[0x%08x] invalid\n",
|
|
__func__, ring, idx, length);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (ring == 0)
|
|
rxb = &ha->rx_buf[idx];
|
|
else
|
|
rxb = &ha->rx_jbuf[idx];
|
|
|
|
QL_ASSERT((rxb != NULL),\
|
|
("%s: [r, i, sds_idx]=[%d, 0x%x, %d] rxb != NULL\n",\
|
|
__func__, ring, idx, sds_idx));
|
|
|
|
mp = rxb->m_head;
|
|
|
|
QL_ASSERT((mp != NULL),\
|
|
("%s: [r,i,rxb, sds_idx]=[%d, 0x%x, %p, %d] mp != NULL\n",\
|
|
__func__, ring, idx, rxb, sds_idx));
|
|
|
|
bus_dmamap_sync(ha->rx_tag, rxb->map, BUS_DMASYNC_POSTREAD);
|
|
|
|
if (ring == 0) {
|
|
rxb->m_head = NULL;
|
|
rxb->next = sdsp->rxb_free;
|
|
sdsp->rxb_free = rxb;
|
|
sdsp->rx_free++;
|
|
} else {
|
|
rxb->m_head = NULL;
|
|
rxb->next = sdsp->rxjb_free;
|
|
sdsp->rxjb_free = rxb;
|
|
sdsp->rxj_free++;
|
|
}
|
|
|
|
mp->m_len = length;
|
|
mp->m_pkthdr.len = length;
|
|
mp->m_pkthdr.rcvif = ifp;
|
|
|
|
eh = mtod(mp, struct ether_vlan_header *);
|
|
|
|
if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN)) {
|
|
uint32_t *data = (uint32_t *)eh;
|
|
|
|
mp->m_pkthdr.ether_vtag = ntohs(eh->evl_tag);
|
|
mp->m_flags |= M_VLANTAG;
|
|
|
|
*(data + 3) = *(data + 2);
|
|
*(data + 2) = *(data + 1);
|
|
*(data + 1) = *data;
|
|
|
|
m_adj(mp, ETHER_VLAN_ENCAP_LEN);
|
|
}
|
|
|
|
if (status == Q8_STAT_DESC_STATUS_CHKSUM_OK) {
|
|
mp->m_pkthdr.csum_flags = (CSUM_IP_CHECKED | CSUM_IP_VALID);
|
|
} else {
|
|
mp->m_pkthdr.csum_flags = 0;
|
|
}
|
|
|
|
if (lro->lro_cnt && (tcp_lro_rx(lro, mp, 0) == 0)) {
|
|
/* LRO packet has been successfully queued */
|
|
} else {
|
|
(*ifp->if_input)(ifp, mp);
|
|
}
|
|
|
|
if (sdsp->rx_free > std_replenish)
|
|
qla_replenish_normal_rx(ha, sdsp);
|
|
|
|
if (sdsp->rxj_free > jumbo_replenish)
|
|
qla_replenish_jumbo_rx(ha, sdsp);
|
|
|
|
return;
|
|
}
|
|
|
|
static void
|
|
qla_replenish_jumbo_rx(qla_host_t *ha, qla_sds_t *sdsp)
|
|
{
|
|
qla_rx_buf_t *rxb;
|
|
int count = jumbo_replenish;
|
|
uint32_t rxj_next;
|
|
|
|
if (!mtx_trylock(&ha->rxj_lock))
|
|
return;
|
|
|
|
rxj_next = ha->hw.rxj_next;
|
|
|
|
while (count--) {
|
|
rxb = sdsp->rxjb_free;
|
|
|
|
if (rxb == NULL)
|
|
break;
|
|
|
|
sdsp->rxjb_free = rxb->next;
|
|
sdsp->rxj_free--;
|
|
|
|
|
|
if (qla_get_mbuf(ha, rxb, NULL, RDS_RING_INDEX_JUMBO) == 0) {
|
|
qla_set_hw_rcv_desc(ha, RDS_RING_INDEX_JUMBO,
|
|
ha->hw.rxj_in, rxb->handle, rxb->paddr,
|
|
(rxb->m_head)->m_pkthdr.len);
|
|
ha->hw.rxj_in++;
|
|
if (ha->hw.rxj_in == NUM_RX_JUMBO_DESCRIPTORS)
|
|
ha->hw.rxj_in = 0;
|
|
ha->hw.rxj_next++;
|
|
if (ha->hw.rxj_next == NUM_RX_JUMBO_DESCRIPTORS)
|
|
ha->hw.rxj_next = 0;
|
|
} else {
|
|
device_printf(ha->pci_dev,
|
|
"%s: qla_get_mbuf [1,(%d),(%d)] failed\n",
|
|
__func__, ha->hw.rxj_in, rxb->handle);
|
|
|
|
rxb->m_head = NULL;
|
|
rxb->next = sdsp->rxjb_free;
|
|
sdsp->rxjb_free = rxb;
|
|
sdsp->rxj_free++;
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (rxj_next != ha->hw.rxj_next) {
|
|
QL_UPDATE_RDS_PRODUCER_INDEX(ha, 1, ha->hw.rxj_next);
|
|
}
|
|
mtx_unlock(&ha->rxj_lock);
|
|
}
|
|
|
|
static void
|
|
qla_replenish_normal_rx(qla_host_t *ha, qla_sds_t *sdsp)
|
|
{
|
|
qla_rx_buf_t *rxb;
|
|
int count = std_replenish;
|
|
uint32_t rx_next;
|
|
|
|
if (!mtx_trylock(&ha->rx_lock))
|
|
return;
|
|
|
|
rx_next = ha->hw.rx_next;
|
|
|
|
while (count--) {
|
|
rxb = sdsp->rxb_free;
|
|
|
|
if (rxb == NULL)
|
|
break;
|
|
|
|
sdsp->rxb_free = rxb->next;
|
|
sdsp->rx_free--;
|
|
|
|
if (qla_get_mbuf(ha, rxb, NULL, RDS_RING_INDEX_NORMAL) == 0) {
|
|
qla_set_hw_rcv_desc(ha, RDS_RING_INDEX_NORMAL,
|
|
ha->hw.rx_in, rxb->handle, rxb->paddr,
|
|
(rxb->m_head)->m_pkthdr.len);
|
|
ha->hw.rx_in++;
|
|
if (ha->hw.rx_in == NUM_RX_DESCRIPTORS)
|
|
ha->hw.rx_in = 0;
|
|
ha->hw.rx_next++;
|
|
if (ha->hw.rx_next == NUM_RX_DESCRIPTORS)
|
|
ha->hw.rx_next = 0;
|
|
} else {
|
|
device_printf(ha->pci_dev,
|
|
"%s: qla_get_mbuf [0,(%d),(%d)] failed\n",
|
|
__func__, ha->hw.rx_in, rxb->handle);
|
|
|
|
rxb->m_head = NULL;
|
|
rxb->next = sdsp->rxb_free;
|
|
sdsp->rxb_free = rxb;
|
|
sdsp->rx_free++;
|
|
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (rx_next != ha->hw.rx_next) {
|
|
QL_UPDATE_RDS_PRODUCER_INDEX(ha, 0, ha->hw.rx_next);
|
|
}
|
|
mtx_unlock(&ha->rx_lock);
|
|
}
|
|
|
|
/*
|
|
* Name: qla_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, desc_count;
|
|
q80_stat_desc_t *sdesc;
|
|
struct lro_ctrl *lro;
|
|
uint32_t ret = 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((dev, "%s: [%d]enter\n", __func__, sds_idx));
|
|
|
|
/*
|
|
* receive interrupts
|
|
*/
|
|
comp_idx = hw->sds[sds_idx].sdsr_next;
|
|
lro = &hw->sds[sds_idx].lro;
|
|
|
|
while (count--) {
|
|
|
|
sdesc = (q80_stat_desc_t *)
|
|
&hw->sds[sds_idx].sds_ring_base[comp_idx];
|
|
|
|
if (Q8_STAT_DESC_OWNER((sdesc->data[0])) !=
|
|
Q8_STAT_DESC_OWNER_HOST) {
|
|
QL_DPRINT2((dev, "%s: data %p sdsr_next 0x%08x\n",
|
|
__func__, (void *)sdesc->data[0], comp_idx));
|
|
break;
|
|
}
|
|
|
|
desc_count = Q8_STAT_DESC_COUNT((sdesc->data[0]));
|
|
|
|
switch (Q8_STAT_DESC_OPCODE((sdesc->data[0]))) {
|
|
|
|
case Q8_STAT_DESC_OPCODE_RCV_PKT:
|
|
case Q8_STAT_DESC_OPCODE_SYN_OFFLOAD:
|
|
qla_rx_intr(ha, (sdesc->data[0]), sds_idx, lro);
|
|
|
|
break;
|
|
|
|
default:
|
|
device_printf(dev, "%s: default 0x%llx!\n", __func__,
|
|
(long long unsigned int)sdesc->data[0]);
|
|
break;
|
|
}
|
|
|
|
while (desc_count--) {
|
|
sdesc->data[0] =
|
|
Q8_STAT_DESC_SET_OWNER(Q8_STAT_DESC_OWNER_FW);
|
|
comp_idx = (comp_idx + 1) & (NUM_STATUS_DESCRIPTORS-1);
|
|
sdesc = (q80_stat_desc_t *)
|
|
&hw->sds[sds_idx].sds_ring_base[comp_idx];
|
|
}
|
|
}
|
|
|
|
tcp_lro_flush_all(lro);
|
|
|
|
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];
|
|
if ((sds_idx == 0) && (Q8_STAT_DESC_OWNER((sdesc->data[0])) ==
|
|
Q8_STAT_DESC_OWNER_HOST)) {
|
|
ret = -1;
|
|
}
|
|
|
|
hw->sds[sds_idx].rcv_active = 0;
|
|
return (ret);
|
|
}
|
|
|
|
void
|
|
qla_isr(void *arg)
|
|
{
|
|
qla_ivec_t *ivec = arg;
|
|
qla_host_t *ha;
|
|
uint32_t sds_idx;
|
|
uint32_t ret;
|
|
|
|
ha = ivec->ha;
|
|
sds_idx = ivec->irq_rid - 1;
|
|
|
|
if (sds_idx >= ha->hw.num_sds_rings) {
|
|
device_printf(ha->pci_dev, "%s: bogus sds_idx 0x%x\n", __func__,
|
|
sds_idx);
|
|
|
|
return;
|
|
}
|
|
|
|
if (sds_idx == 0)
|
|
taskqueue_enqueue(ha->tx_tq, &ha->tx_task);
|
|
|
|
ret = qla_rcv_isr(ha, sds_idx, rcv_pkt_thres);
|
|
|
|
if (sds_idx == 0)
|
|
taskqueue_enqueue(ha->tx_tq, &ha->tx_task);
|
|
|
|
if (ret) {
|
|
taskqueue_enqueue(ha->irq_vec[sds_idx].rcv_tq,
|
|
&ha->irq_vec[sds_idx].rcv_task);
|
|
} else {
|
|
QL_ENABLE_INTERRUPTS(ha, sds_idx);
|
|
}
|
|
}
|
|
|
|
void
|
|
qla_rcv(void *context, int pending)
|
|
{
|
|
qla_ivec_t *ivec = context;
|
|
qla_host_t *ha;
|
|
device_t dev;
|
|
qla_hw_t *hw;
|
|
uint32_t sds_idx;
|
|
uint32_t ret;
|
|
struct ifnet *ifp;
|
|
|
|
ha = ivec->ha;
|
|
dev = ha->pci_dev;
|
|
hw = &ha->hw;
|
|
sds_idx = ivec->irq_rid - 1;
|
|
ifp = ha->ifp;
|
|
|
|
do {
|
|
if (sds_idx == 0) {
|
|
if (qla_le32_to_host(*(hw->tx_cons)) != hw->txr_comp) {
|
|
taskqueue_enqueue(ha->tx_tq, &ha->tx_task);
|
|
} else if ((ifp->if_snd.ifq_head != NULL) &&
|
|
QL_RUNNING(ifp)) {
|
|
taskqueue_enqueue(ha->tx_tq, &ha->tx_task);
|
|
}
|
|
}
|
|
ret = qla_rcv_isr(ha, sds_idx, rcv_pkt_thres_d);
|
|
} while (ret);
|
|
|
|
if (sds_idx == 0)
|
|
taskqueue_enqueue(ha->tx_tq, &ha->tx_task);
|
|
|
|
QL_ENABLE_INTERRUPTS(ha, sds_idx);
|
|
}
|
|
|