freebsd-skq/sys/dev/liquidio/lio_core.c

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/*
* BSD LICENSE
*
* Copyright(c) 2017 Cavium, Inc.. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Cavium, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 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(S) 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.
*/
/*$FreeBSD$*/
#include "lio_bsd.h"
#include "lio_common.h"
#include "lio_droq.h"
#include "lio_iq.h"
#include "lio_response_manager.h"
#include "lio_device.h"
#include "lio_ctrl.h"
#include "lio_main.h"
#include "lio_rxtx.h"
#include "lio_network.h"
int
lio_set_feature(struct ifnet *ifp, int cmd, uint16_t param1)
{
struct lio_ctrl_pkt nctrl;
struct lio *lio = if_getsoftc(ifp);
struct octeon_device *oct = lio->oct_dev;
int ret = 0;
bzero(&nctrl, sizeof(struct lio_ctrl_pkt));
nctrl.ncmd.cmd64 = 0;
nctrl.ncmd.s.cmd = cmd;
nctrl.ncmd.s.param1 = param1;
nctrl.iq_no = lio->linfo.txpciq[0].s.q_no;
nctrl.wait_time = 100;
nctrl.lio = lio;
nctrl.cb_fn = lio_ctrl_cmd_completion;
ret = lio_send_ctrl_pkt(lio->oct_dev, &nctrl);
if (ret < 0) {
lio_dev_err(oct, "Feature change failed in core (ret: 0x%x)\n",
ret);
}
return (ret);
}
void
lio_ctrl_cmd_completion(void *nctrl_ptr)
{
struct lio_ctrl_pkt *nctrl = (struct lio_ctrl_pkt *)nctrl_ptr;
struct lio *lio;
struct octeon_device *oct;
uint8_t *mac;
lio = nctrl->lio;
if (lio->oct_dev == NULL)
return;
oct = lio->oct_dev;
switch (nctrl->ncmd.s.cmd) {
case LIO_CMD_CHANGE_DEVFLAGS:
case LIO_CMD_SET_MULTI_LIST:
break;
case LIO_CMD_CHANGE_MACADDR:
mac = ((uint8_t *)&nctrl->udd[0]) + 2;
if (nctrl->ncmd.s.param1) {
/* vfidx is 0 based, but vf_num (param1) is 1 based */
int vfidx = nctrl->ncmd.s.param1 - 1;
bool mac_is_admin_assigned = nctrl->ncmd.s.param2;
if (mac_is_admin_assigned)
lio_dev_info(oct, "MAC Address %pM is configured for VF %d\n",
mac, vfidx);
} else {
lio_dev_info(oct, "MAC Address changed to %02x:%02x:%02x:%02x:%02x:%02x\n",
mac[0], mac[1], mac[2], mac[3], mac[4],
mac[5]);
}
break;
case LIO_CMD_GPIO_ACCESS:
lio_dev_info(oct, "LED Flashing visual identification\n");
break;
case LIO_CMD_ID_ACTIVE:
lio_dev_info(oct, "LED Flashing visual identification\n");
break;
case LIO_CMD_LRO_ENABLE:
lio_dev_info(oct, "HW LRO Enabled\n");
break;
case LIO_CMD_LRO_DISABLE:
lio_dev_info(oct, "HW LRO Disabled\n");
break;
case LIO_CMD_VERBOSE_ENABLE:
lio_dev_info(oct, "Firmware debug enabled\n");
break;
case LIO_CMD_VERBOSE_DISABLE:
lio_dev_info(oct, "Firmware debug disabled\n");
break;
case LIO_CMD_VLAN_FILTER_CTL:
if (nctrl->ncmd.s.param1)
lio_dev_info(oct, "VLAN filter enabled\n");
else
lio_dev_info(oct, "VLAN filter disabled\n");
break;
case LIO_CMD_ADD_VLAN_FILTER:
lio_dev_info(oct, "VLAN filter %d added\n",
nctrl->ncmd.s.param1);
break;
case LIO_CMD_DEL_VLAN_FILTER:
lio_dev_info(oct, "VLAN filter %d removed\n",
nctrl->ncmd.s.param1);
break;
case LIO_CMD_SET_SETTINGS:
lio_dev_info(oct, "Settings changed\n");
break;
/*
* Case to handle "LIO_CMD_TNL_RX_CSUM_CTL"
* Command passed by NIC driver
*/
case LIO_CMD_TNL_RX_CSUM_CTL:
if (nctrl->ncmd.s.param1 == LIO_CMD_RXCSUM_ENABLE) {
lio_dev_info(oct, "RX Checksum Offload Enabled\n");
} else if (nctrl->ncmd.s.param1 == LIO_CMD_RXCSUM_DISABLE) {
lio_dev_info(oct, "RX Checksum Offload Disabled\n");
}
break;
/*
* Case to handle "LIO_CMD_TNL_TX_CSUM_CTL"
* Command passed by NIC driver
*/
case LIO_CMD_TNL_TX_CSUM_CTL:
if (nctrl->ncmd.s.param1 == LIO_CMD_TXCSUM_ENABLE) {
lio_dev_info(oct, "TX Checksum Offload Enabled\n");
} else if (nctrl->ncmd.s.param1 == LIO_CMD_TXCSUM_DISABLE) {
lio_dev_info(oct, "TX Checksum Offload Disabled\n");
}
break;
/*
* Case to handle "LIO_CMD_VXLAN_PORT_CONFIG"
* Command passed by NIC driver
*/
case LIO_CMD_VXLAN_PORT_CONFIG:
if (nctrl->ncmd.s.more == LIO_CMD_VXLAN_PORT_ADD) {
lio_dev_info(oct, "VxLAN Destination UDP PORT:%d ADDED\n",
nctrl->ncmd.s.param1);
} else if (nctrl->ncmd.s.more == LIO_CMD_VXLAN_PORT_DEL) {
lio_dev_info(oct, "VxLAN Destination UDP PORT:%d DELETED\n",
nctrl->ncmd.s.param1);
}
break;
case LIO_CMD_SET_FLOW_CTL:
lio_dev_info(oct, "Set RX/TX flow control parameters\n");
break;
case LIO_CMD_SET_FNV:
if (nctrl->ncmd.s.param1 == LIO_CMD_FNV_ENABLE)
lio_dev_info(oct, "FNV Enabled\n");
else if (nctrl->ncmd.s.param1 == LIO_CMD_FNV_DISABLE)
lio_dev_info(oct, "FNV Disabled\n");
break;
case LIO_CMD_PKT_STEERING_CTL:
if (nctrl->ncmd.s.param1 == LIO_CMD_PKT_STEERING_ENABLE) {
lio_dev_info(oct, "Packet Steering Enabled\n");
} else if (nctrl->ncmd.s.param1 ==
LIO_CMD_PKT_STEERING_DISABLE) {
lio_dev_info(oct, "Packet Steering Disabled\n");
}
break;
case LIO_CMD_QUEUE_COUNT_CTL:
lio_dev_info(oct, "Queue count updated to %d\n",
nctrl->ncmd.s.param1);
break;
default:
lio_dev_err(oct, "%s Unknown cmd %d\n", __func__,
nctrl->ncmd.s.cmd);
}
}
/*
* \brief Setup output queue
* @param oct octeon device
* @param q_no which queue
* @param num_descs how many descriptors
* @param desc_size size of each descriptor
* @param app_ctx application context
*/
static int
lio_setup_droq(struct octeon_device *oct, int q_no, int num_descs,
int desc_size, void *app_ctx)
{
int ret_val = 0;
lio_dev_dbg(oct, "Creating Droq: %d\n", q_no);
/* droq creation and local register settings. */
ret_val = lio_create_droq(oct, q_no, num_descs, desc_size, app_ctx);
if (ret_val < 0)
return (ret_val);
if (ret_val == 1) {
lio_dev_dbg(oct, "Using default droq %d\n", q_no);
return (0);
}
/*
* Send Credit for Octeon Output queues. Credits are always
* sent after the output queue is enabled.
*/
lio_write_csr32(oct, oct->droq[q_no]->pkts_credit_reg,
oct->droq[q_no]->max_count);
return (ret_val);
}
static void
lio_push_packet(void *m_buff, uint32_t len, union octeon_rh *rh, void *rxq,
void *arg)
{
struct mbuf *mbuf = m_buff;
struct ifnet *ifp = arg;
struct lio_droq *droq = rxq;
if (ifp != NULL) {
struct lio *lio = if_getsoftc(ifp);
/* Do not proceed if the interface is not in RUNNING state. */
if (!lio_ifstate_check(lio, LIO_IFSTATE_RUNNING)) {
lio_recv_buffer_free(mbuf);
droq->stats.rx_dropped++;
return;
}
if (rh->r_dh.has_hash) {
uint32_t hashtype, hashval;
if (rh->r_dh.has_hwtstamp) {
hashval = htobe32(*(uint32_t *)
(((uint8_t *)mbuf->m_data) +
((rh->r_dh.len - 2) *
BYTES_PER_DHLEN_UNIT)));
hashtype =
htobe32(*(((uint32_t *)
(((uint8_t *)mbuf->m_data) +
((rh->r_dh.len - 2) *
BYTES_PER_DHLEN_UNIT))) + 1));
} else {
hashval = htobe32(*(uint32_t *)
(((uint8_t *)mbuf->m_data) +
((rh->r_dh.len - 1) *
BYTES_PER_DHLEN_UNIT)));
hashtype =
htobe32(*(((uint32_t *)
(((uint8_t *)mbuf->m_data) +
((rh->r_dh.len - 1) *
BYTES_PER_DHLEN_UNIT))) + 1));
}
mbuf->m_pkthdr.flowid = hashval;
switch (hashtype) {
case LIO_RSS_HASH_IPV4:
M_HASHTYPE_SET(mbuf, M_HASHTYPE_RSS_IPV4);
break;
case LIO_RSS_HASH_TCP_IPV4:
M_HASHTYPE_SET(mbuf, M_HASHTYPE_RSS_TCP_IPV4);
break;
case LIO_RSS_HASH_IPV6:
M_HASHTYPE_SET(mbuf, M_HASHTYPE_RSS_IPV6);
break;
case LIO_RSS_HASH_TCP_IPV6:
M_HASHTYPE_SET(mbuf, M_HASHTYPE_RSS_TCP_IPV6);
break;
case LIO_RSS_HASH_IPV6_EX:
M_HASHTYPE_SET(mbuf, M_HASHTYPE_RSS_IPV6_EX);
break;
case LIO_RSS_HASH_TCP_IPV6_EX:
M_HASHTYPE_SET(mbuf,
M_HASHTYPE_RSS_TCP_IPV6_EX);
break;
default:
M_HASHTYPE_SET(mbuf, M_HASHTYPE_OPAQUE_HASH);
}
} else {
/*
* This case won't hit as FW will always set has_hash
* in rh.
*/
M_HASHTYPE_SET(mbuf, M_HASHTYPE_OPAQUE);
mbuf->m_pkthdr.flowid = droq->q_no;
}
m_adj(mbuf, rh->r_dh.len * 8);
len -= rh->r_dh.len * 8;
mbuf->m_flags |= M_PKTHDR;
if ((if_getcapenable(ifp) & IFCAP_VLAN_HWTAGGING) &&
(rh->r_dh.priority || rh->r_dh.vlan)) {
uint16_t priority = rh->r_dh.priority;
uint16_t vid = rh->r_dh.vlan;
uint16_t vtag;
vtag = priority << 13 | vid;
mbuf->m_pkthdr.ether_vtag = vtag;
mbuf->m_flags |= M_VLANTAG;
}
if (rh->r_dh.csum_verified & LIO_IPSUM_VERIFIED)
mbuf->m_pkthdr.csum_flags |= (CSUM_L3_CALC |
CSUM_L3_VALID);
if (rh->r_dh.csum_verified & LIO_L4SUM_VERIFIED) {
mbuf->m_pkthdr.csum_flags |= (CSUM_L4_CALC |
CSUM_L4_VALID);
mbuf->m_pkthdr.csum_flags |= (CSUM_DATA_VALID |
CSUM_PSEUDO_HDR);
mbuf->m_pkthdr.csum_data = htons(0xffff);
}
mbuf->m_pkthdr.rcvif = ifp;
mbuf->m_pkthdr.len = len;
if ((lio_hwlro == 0) &&
(if_getcapenable(ifp) & IFCAP_LRO) &&
(mbuf->m_pkthdr.csum_flags &
(CSUM_L3_VALID | CSUM_L4_VALID | CSUM_DATA_VALID |
CSUM_PSEUDO_HDR)) == (CSUM_L3_VALID | CSUM_L4_VALID |
CSUM_DATA_VALID |
CSUM_PSEUDO_HDR)) {
if (droq->lro.lro_cnt) {
if (tcp_lro_rx(&droq->lro, mbuf, 0) == 0) {
droq->stats.rx_bytes_received += len;
droq->stats.rx_pkts_received++;
return;
}
}
}
if_input(ifp, mbuf);
droq->stats.rx_bytes_received += len;
droq->stats.rx_pkts_received++;
} else {
lio_recv_buffer_free(mbuf);
droq->stats.rx_dropped++;
}
}
/*
* \brief Setup input and output queues
* @param octeon_dev octeon device
* @param ifidx Interface Index
*
* Note: Queues are with respect to the octeon device. Thus
* an input queue is for egress packets, and output queues
* are for ingress packets.
*/
int
lio_setup_io_queues(struct octeon_device *octeon_dev, int ifidx,
uint32_t num_iqs, uint32_t num_oqs)
{
struct lio_droq_ops droq_ops;
struct ifnet *ifp;
struct lio_droq *droq;
struct lio *lio;
static int cpu_id, cpu_id_modulus;
int num_tx_descs, q, q_no, retval = 0;
ifp = octeon_dev->props.ifp;
lio = if_getsoftc(ifp);
bzero(&droq_ops, sizeof(struct lio_droq_ops));
droq_ops.fptr = lio_push_packet;
droq_ops.farg = (void *)ifp;
cpu_id = 0;
cpu_id_modulus = mp_ncpus;
/* set up DROQs. */
for (q = 0; q < num_oqs; q++) {
q_no = lio->linfo.rxpciq[q].s.q_no;
lio_dev_dbg(octeon_dev, "lio_setup_io_queues index:%d linfo.rxpciq.s.q_no:%d\n",
q, q_no);
retval = lio_setup_droq(octeon_dev, q_no,
LIO_GET_NUM_RX_DESCS_NIC_IF_CFG(
lio_get_conf(octeon_dev),
lio->ifidx),
LIO_GET_NUM_RX_BUF_SIZE_NIC_IF_CFG(
lio_get_conf(octeon_dev),
lio->ifidx), NULL);
if (retval) {
lio_dev_err(octeon_dev, "%s : Runtime DROQ(RxQ) creation failed.\n",
__func__);
return (1);
}
droq = octeon_dev->droq[q_no];
/* designate a CPU for this droq */
droq->cpu_id = cpu_id;
cpu_id++;
if (cpu_id >= cpu_id_modulus)
cpu_id = 0;
lio_register_droq_ops(octeon_dev, q_no, &droq_ops);
}
/* set up IQs. */
for (q = 0; q < num_iqs; q++) {
num_tx_descs = LIO_GET_NUM_TX_DESCS_NIC_IF_CFG(
lio_get_conf(octeon_dev),
lio->ifidx);
retval = lio_setup_iq(octeon_dev, ifidx, q,
lio->linfo.txpciq[q], num_tx_descs);
if (retval) {
lio_dev_err(octeon_dev, " %s : Runtime IQ(TxQ) creation failed.\n",
__func__);
return (1);
}
}
return (0);
}
/*
* \brief Droq packet processor sceduler
* @param oct octeon device
*/
static void
lio_schedule_droq_pkt_handlers(struct octeon_device *oct)
{
struct lio_droq *droq;
uint64_t oq_no;
if (oct->int_status & LIO_DEV_INTR_PKT_DATA) {
for (oq_no = 0; oq_no < LIO_MAX_OUTPUT_QUEUES(oct); oq_no++) {
if (!(oct->io_qmask.oq & BIT_ULL(oq_no)))
continue;
droq = oct->droq[oq_no];
taskqueue_enqueue(droq->droq_taskqueue,
&droq->droq_task);
}
}
}
static void
lio_msix_intr_handler(void *vector)
{
struct lio_ioq_vector *ioq_vector = (struct lio_ioq_vector *)vector;
struct octeon_device *oct = ioq_vector->oct_dev;
struct lio_droq *droq = oct->droq[ioq_vector->droq_index];
uint64_t ret;
ret = oct->fn_list.msix_interrupt_handler(ioq_vector);
if ((ret & LIO_MSIX_PO_INT) || (ret & LIO_MSIX_PI_INT)) {
struct lio_instr_queue *iq = oct->instr_queue[droq->q_no];
int reschedule, tx_done = 1;
reschedule = lio_droq_process_packets(oct, droq, oct->rx_budget);
if (atomic_load_acq_int(&iq->instr_pending))
tx_done = lio_flush_iq(oct, iq, oct->tx_budget);
if ((oct->props.ifp != NULL) && (iq->br != NULL)) {
if (mtx_trylock(&iq->enq_lock)) {
if (!drbr_empty(oct->props.ifp, iq->br))
lio_mq_start_locked(oct->props.ifp,
iq);
mtx_unlock(&iq->enq_lock);
}
}
if (reschedule || !tx_done)
taskqueue_enqueue(droq->droq_taskqueue, &droq->droq_task);
else
lio_enable_irq(droq, iq);
}
}
static void
lio_intr_handler(void *dev)
{
struct octeon_device *oct = (struct octeon_device *)dev;
/* Disable our interrupts for the duration of ISR */
oct->fn_list.disable_interrupt(oct, OCTEON_ALL_INTR);
oct->fn_list.process_interrupt_regs(oct);
lio_schedule_droq_pkt_handlers(oct);
/* Re-enable our interrupts */
if (!(atomic_load_acq_int(&oct->status) == LIO_DEV_IN_RESET))
oct->fn_list.enable_interrupt(oct, OCTEON_ALL_INTR);
}
int
lio_setup_interrupt(struct octeon_device *oct, uint32_t num_ioqs)
{
device_t device;
struct lio_ioq_vector *ioq_vector;
int cpu_id, err, i;
int num_alloc_ioq_vectors;
int num_ioq_vectors;
int res_id;
if (!oct->msix_on)
return (1);
ioq_vector = oct->ioq_vector;
#ifdef RSS
if (oct->sriov_info.num_pf_rings != rss_getnumbuckets()) {
lio_dev_info(oct, "IOQ vectors (%d) are not equal number of RSS buckets (%d)\n",
oct->sriov_info.num_pf_rings, rss_getnumbuckets());
}
#endif
device = oct->device;
oct->num_msix_irqs = num_ioqs;
/* one non ioq interrupt for handling sli_mac_pf_int_sum */
oct->num_msix_irqs += 1;
num_alloc_ioq_vectors = oct->num_msix_irqs;
if (pci_alloc_msix(device, &num_alloc_ioq_vectors) ||
(num_alloc_ioq_vectors != oct->num_msix_irqs))
goto err;
num_ioq_vectors = oct->num_msix_irqs;
/* For PF, there is one non-ioq interrupt handler */
for (i = 0; i < num_ioq_vectors - 1; i++, ioq_vector++) {
res_id = i + 1;
ioq_vector->msix_res =
bus_alloc_resource_any(device, SYS_RES_IRQ, &res_id,
RF_SHAREABLE | RF_ACTIVE);
if (ioq_vector->msix_res == NULL) {
lio_dev_err(oct,
"Unable to allocate bus res msix[%d]\n", i);
goto err_1;
}
err = bus_setup_intr(device, ioq_vector->msix_res,
INTR_TYPE_NET | INTR_MPSAFE, NULL,
lio_msix_intr_handler, ioq_vector,
&ioq_vector->tag);
if (err) {
bus_release_resource(device, SYS_RES_IRQ, res_id,
ioq_vector->msix_res);
ioq_vector->msix_res = NULL;
lio_dev_err(oct, "Failed to register intr handler");
goto err_1;
}
bus_describe_intr(device, ioq_vector->msix_res, ioq_vector->tag,
"rxtx%u", i);
ioq_vector->vector = res_id;
#ifdef RSS
cpu_id = rss_getcpu(i % rss_getnumbuckets());
#else
cpu_id = i % mp_ncpus;
#endif
CPU_SETOF(cpu_id, &ioq_vector->affinity_mask);
/* Setting the IRQ affinity. */
err = bus_bind_intr(device, ioq_vector->msix_res, cpu_id);
if (err)
lio_dev_err(oct, "bus bind interrupt fail");
#ifdef RSS
lio_dev_dbg(oct, "Bound RSS bucket %d to CPU %d\n", i, cpu_id);
#else
lio_dev_dbg(oct, "Bound Queue %d to CPU %d\n", i, cpu_id);
#endif
}
lio_dev_dbg(oct, "MSI-X enabled\n");
res_id = num_ioq_vectors;
oct->msix_res = bus_alloc_resource_any(device, SYS_RES_IRQ, &res_id,
RF_SHAREABLE | RF_ACTIVE);
if (oct->msix_res == NULL) {
lio_dev_err(oct, "Unable to allocate bus res msix for non-ioq interrupt\n");
goto err_1;
}
err = bus_setup_intr(device, oct->msix_res, INTR_TYPE_NET | INTR_MPSAFE,
NULL, lio_intr_handler, oct, &oct->tag);
if (err) {
bus_release_resource(device, SYS_RES_IRQ, res_id,
oct->msix_res);
oct->msix_res = NULL;
lio_dev_err(oct, "Failed to register intr handler");
goto err_1;
}
bus_describe_intr(device, oct->msix_res, oct->tag, "aux");
oct->aux_vector = res_id;
return (0);
err_1:
if (oct->tag != NULL) {
bus_teardown_intr(device, oct->msix_res, oct->tag);
oct->tag = NULL;
}
while (i) {
i--;
ioq_vector--;
if (ioq_vector->tag != NULL) {
bus_teardown_intr(device, ioq_vector->msix_res,
ioq_vector->tag);
ioq_vector->tag = NULL;
}
if (ioq_vector->msix_res != NULL) {
bus_release_resource(device, SYS_RES_IRQ,
ioq_vector->vector,
ioq_vector->msix_res);
ioq_vector->msix_res = NULL;
}
}
if (oct->msix_res != NULL) {
bus_release_resource(device, SYS_RES_IRQ, oct->aux_vector,
oct->msix_res);
oct->msix_res = NULL;
}
err:
pci_release_msi(device);
lio_dev_err(oct, "MSI-X disabled\n");
return (1);
}