/*
* 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;
}
if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
mpf->m_pkthdr.flowid = sgc->rss_hash;
M_HASHTYPE_SET(mpf, M_HASHTYPE_OPAQUE);
(*ifp->if_input)(ifp, mpf);
if (sdsp->rx_free > ha->std_replenish)
qla_replenish_normal_rx(ha, sdsp, r_idx);
return;
}
/*
* Name: ql_rcv_isr
* Function: Main Interrupt Service Routine
*/
uint32_t
ql_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;
uint32_t r_idx = 0;
qla_sds_t *sdsp;
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->hw.enable_soft_lro) {
struct lro_ctrl *lro;
lro = &ha->hw.sds[sds_idx].lro;
#if (__FreeBSD_version >= 1100101)
tcp_lro_flush_all(lro);
#else
struct lro_entry *queued;
while ((!SLIST_EMPTY(&lro->lro_active))) {
queued = SLIST_FIRST(&lro->lro_active);
SLIST_REMOVE_HEAD(&lro->lro_active, next);
tcp_lro_flush(lro, queued);
}
#endif /* #if (__FreeBSD_version >= 1100101) */
}
if (ha->flags.stop_rcv)
goto ql_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;
} else {
hw->sds[sds_idx].spurious_intr_count++;
if (ha->hw.num_rds_rings > 1)
r_idx = sds_idx;
sdsp = &ha->hw.sds[sds_idx];
if (sdsp->rx_free > ha->std_replenish)
qla_replenish_normal_rx(ha, sdsp, r_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;
ql_rcv_isr_exit:
hw->sds[sds_idx].rcv_active = 0;
return (ret);
}
/*
* 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;
M_HASHTYPE_SET(mpf, M_HASHTYPE_OPAQUE);
if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
(*ifp->if_input)(ifp, mpf);
if (sdsp->rx_free > ha->std_replenish)
qla_replenish_normal_rx(ha, sdsp, r_idx);
return (0);
}
/*
* 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 successfuly 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;
}
