/*
* 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_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);
}
