mirror of
https://github.com/freebsd/freebsd-src
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MFp4 multiple queue support
This commit is contained in:
Kip Macy
parent
b40114f7f1
commit
9b74c87f1f
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=175249
698
sys/dev/cxgb/cxgb_multiq.c
Normal file
698
sys/dev/cxgb/cxgb_multiq.c
Normal file
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@ -0,0 +1,698 @@
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/**************************************************************************
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Copyright (c) 2007, Chelsio Inc.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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1. Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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2. Neither the name of the Chelsio Corporation nor the names of its
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contributors may be used to endorse or promote products derived from
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this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
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SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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POSSIBILITY OF SUCH DAMAGE.
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***************************************************************************/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#ifdef IFNET_MULTIQUEUE
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/bus.h>
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#include <sys/module.h>
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#include <sys/pciio.h>
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#include <sys/conf.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/bus_dma.h>
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#include <sys/kthread.h>
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#include <sys/rman.h>
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#include <sys/ioccom.h>
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#include <sys/mbuf.h>
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#include <sys/linker.h>
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#include <sys/firmware.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/proc.h>
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#include <sys/sched.h>
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#include <sys/smp.h>
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#include <sys/sysctl.h>
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#include <sys/queue.h>
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#include <sys/taskqueue.h>
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#include <sys/unistd.h>
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#include <sys/unistd.h>
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#include <net/bpf.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_arp.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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#include <netinet/in_systm.h>
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#include <netinet/in.h>
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#include <netinet/if_ether.h>
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#include <netinet/ip.h>
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#include <netinet/ip6.h>
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#include <netinet/sctp_crc32.h>
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#include <netinet/sctp.h>
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#include <netinet/tcp.h>
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#include <netinet/udp.h>
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pci_private.h>
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#include <vm/vm.h>
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#include <vm/pmap.h>
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#ifdef CONFIG_DEFINED
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#include <cxgb_include.h>
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#include <sys/mvec.h>
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#else
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#include <dev/cxgb/cxgb_include.h>
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#include <dev/cxgb/sys/mvec.h>
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#endif
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extern struct sysctl_oid_list sysctl__hw_cxgb_children;
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static int cxgb_pcpu_tx_coalesce = 1;
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TUNABLE_INT("hw.cxgb.tx_coalesce", &cxgb_pcpu_tx_coalesce);
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SYSCTL_UINT(_hw_cxgb, OID_AUTO, tx_coalesce, CTLFLAG_RDTUN, &cxgb_pcpu_tx_coalesce, 0,
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"coalesce small packets into a single work request");
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static int sleep_ticks = 1;
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TUNABLE_INT("hw.cxgb.sleep_ticks", &sleep_ticks);
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SYSCTL_UINT(_hw_cxgb, OID_AUTO, sleep_ticks, CTLFLAG_RDTUN, &sleep_ticks, 0,
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"ticks to sleep between checking pcpu queues");
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int cxgb_txq_buf_ring_size = TX_ETH_Q_SIZE;
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TUNABLE_INT("hw.cxgb.txq_mr_size", &cxgb_txq_buf_ring_size);
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SYSCTL_UINT(_hw_cxgb, OID_AUTO, txq_mr_size, CTLFLAG_RDTUN, &cxgb_txq_buf_ring_size, 0,
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"size of per-queue mbuf ring");
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static inline int32_t cxgb_pcpu_calc_cookie(struct ifnet *ifp, struct mbuf *immpkt);
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static void cxgb_pcpu_start_proc(void *arg);
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static int cxgb_pcpu_cookie_to_qidx(struct port_info *, uint32_t cookie);
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static inline int
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cxgb_pcpu_enqueue_packet_(struct sge_qset *qs, struct mbuf *m)
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{
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struct sge_txq *txq;
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struct buf_ring *mr;
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int prod, cons, mask;
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int err = 0;
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if (qs->qs_flags & QS_EXITING) {
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m_freem(m);
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return (ENXIO);
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}
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txq = &qs->txq[TXQ_ETH];
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mr = &txq->txq_mr;
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mtx_lock(&mr->br_lock);
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cons = mr->br_cons;
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prod = mr->br_prod;
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mask = mr->br_size - 1;
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if (((prod + 1) & mask) != cons) {
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mr->br_ring[prod] = (caddr_t)m;
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mb();
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mr->br_prod = (prod + 1) & mask;
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} else {
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txq->txq_drops++;
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err = ENOBUFS;
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}
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mtx_unlock(&mr->br_lock);
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if ((qs->txq[TXQ_ETH].flags & TXQ_TRANSMITTING) == 0)
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wakeup(qs);
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if (err)
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m_freem(m);
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return (err);
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}
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int
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cxgb_pcpu_enqueue_packet(struct ifnet *ifp, struct mbuf *m)
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{
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struct port_info *pi;
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struct sge_qset *qs;
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int err, qidx;
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int32_t calc_cookie;
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pi = ifp->if_softc;
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err = 0;
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calc_cookie = m->m_pkthdr.rss_hash;
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qidx = cxgb_pcpu_cookie_to_qidx(pi, calc_cookie);
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qs = &pi->adapter->sge.qs[qidx];
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err = cxgb_pcpu_enqueue_packet_(qs, m);
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return (err);
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}
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int
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cxgb_dequeue_packet(struct ifnet *unused, struct sge_txq *txq, struct mbuf **m_vec)
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{
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struct mbuf *m;
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struct sge_qset *qs;
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int count, size, coalesced;
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struct adapter *sc;
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struct buf_ring *mr;
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mr = &txq->txq_mr;
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coalesced = count = size = 0;
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qs = txq_to_qset(txq, TXQ_ETH);
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if (qs->qs_flags & QS_EXITING)
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return (0);
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if (txq->immpkt != NULL) {
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DPRINTF("immediate packet\n");
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m_vec[0] = txq->immpkt;
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txq->immpkt = NULL;
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return (1);
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}
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sc = qs->port->adapter;
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m = buf_ring_dequeue(mr);
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if (m == NULL)
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return (0);
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m_vec[0] = m;
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if (m->m_pkthdr.tso_segsz > 0 || m->m_pkthdr.len > TX_WR_SIZE_MAX || m->m_next != NULL) {
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DPRINTF("returning 1 packet\n");
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return (1);
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}
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count = 1;
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size = m->m_pkthdr.len;
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for (m = buf_ring_peek(mr); m != NULL; m = buf_ring_peek(mr)) {
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if (m->m_pkthdr.tso_segsz > 0 || size + m->m_pkthdr.len > TX_WR_SIZE_MAX || m->m_next != NULL)
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break;
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buf_ring_dequeue(mr);
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size += m->m_pkthdr.len;
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m_vec[count++] = m;
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if (count == TX_WR_COUNT_MAX || (cxgb_pcpu_tx_coalesce == 0))
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break;
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coalesced++;
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}
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txq->txq_coalesced += coalesced;
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return (count);
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}
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int32_t
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cxgb_pcpu_get_cookie(struct ifnet *ifp, struct in6_addr *lip, uint16_t lport, struct in6_addr *rip, uint16_t rport, int ipv6)
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{
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uint32_t base;
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uint8_t buf[36];
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int count;
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int32_t cookie;
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critical_enter();
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/*
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* Can definitely bypass bcopy XXX
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*/
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if (ipv6 == 0) {
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count = 12;
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bcopy(rip, &buf[0], 4);
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bcopy(lip, &buf[4], 4);
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bcopy(&rport, &buf[8], 2);
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bcopy(&lport, &buf[10], 2);
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} else {
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count = 36;
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bcopy(rip, &buf[0], 16);
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bcopy(lip, &buf[16], 16);
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bcopy(&rport, &buf[32], 2);
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bcopy(&lport, &buf[34], 2);
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}
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base = 0xffffffff;
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base = update_crc32(base, buf, count);
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base = sctp_csum_finalize(base);
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/*
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* Indirection table is 128 bits
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* -> cookie indexes into indirection table which maps connection to queue
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* -> RSS map maps queue to CPU
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*/
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cookie = (base & (RSS_TABLE_SIZE-1));
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critical_exit();
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return (cookie);
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}
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static int32_t
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cxgb_pcpu_calc_cookie(struct ifnet *ifp, struct mbuf *immpkt)
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{
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struct in6_addr lip, rip;
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uint16_t lport, rport;
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struct ether_header *eh;
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int32_t cookie;
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struct ip *ip;
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struct ip6_hdr *ip6;
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struct tcphdr *th;
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struct udphdr *uh;
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struct sctphdr *sh;
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uint8_t *next, proto;
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int etype;
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if (immpkt == NULL)
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return -1;
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#if 1
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/*
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* XXX perf test
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*/
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return (0);
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#endif
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rport = lport = 0;
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cookie = -1;
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next = NULL;
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eh = mtod(immpkt, struct ether_header *);
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etype = ntohs(eh->ether_type);
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switch (etype) {
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case ETHERTYPE_IP:
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ip = (struct ip *)(eh + 1);
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next = (uint8_t *)(ip + 1);
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bcopy(&ip->ip_src, &lip, 4);
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bcopy(&ip->ip_dst, &rip, 4);
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proto = ip->ip_p;
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break;
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case ETHERTYPE_IPV6:
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ip6 = (struct ip6_hdr *)(eh + 1);
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next = (uint8_t *)(ip6 + 1);
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bcopy(&ip6->ip6_src, &lip, sizeof(struct in6_addr));
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bcopy(&ip6->ip6_dst, &rip, sizeof(struct in6_addr));
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if (ip6->ip6_nxt == IPPROTO_HOPOPTS) {
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struct ip6_hbh *hbh;
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hbh = (struct ip6_hbh *)(ip6 + 1);
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proto = hbh->ip6h_nxt;
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} else
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proto = ip6->ip6_nxt;
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break;
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case ETHERTYPE_ARP:
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default:
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/*
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* Default to queue zero
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*/
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proto = cookie = 0;
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}
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if (proto) {
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switch (proto) {
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case IPPROTO_TCP:
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th = (struct tcphdr *)next;
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lport = th->th_sport;
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rport = th->th_dport;
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break;
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case IPPROTO_UDP:
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uh = (struct udphdr *)next;
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lport = uh->uh_sport;
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rport = uh->uh_dport;
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break;
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case IPPROTO_SCTP:
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sh = (struct sctphdr *)next;
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lport = sh->src_port;
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rport = sh->dest_port;
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break;
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default:
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/* nothing to do */
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break;
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}
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}
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if (cookie)
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cookie = cxgb_pcpu_get_cookie(ifp, &lip, lport, &rip, rport, (etype == ETHERTYPE_IPV6));
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return (cookie);
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}
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static void
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cxgb_pcpu_free(struct sge_qset *qs)
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{
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struct mbuf *m;
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struct sge_txq *txq = &qs->txq[TXQ_ETH];
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while ((m = mbufq_dequeue(&txq->sendq)) != NULL)
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m_freem(m);
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while ((m = buf_ring_dequeue(&txq->txq_mr)) != NULL)
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m_freem(m);
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t3_free_tx_desc_all(txq);
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}
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static int
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cxgb_pcpu_reclaim_tx(struct sge_txq *txq)
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{
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int reclaimable;
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struct sge_qset *qs = txq_to_qset(txq, TXQ_ETH);
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#ifdef notyet
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KASSERT(qs->qs_cpuid == curcpu, ("cpu qset mismatch cpuid=%d curcpu=%d",
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qs->qs_cpuid, curcpu));
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#endif
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reclaimable = desc_reclaimable(txq);
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if (reclaimable == 0)
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return (0);
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t3_free_tx_desc(txq, reclaimable);
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txq->cleaned += reclaimable;
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txq->in_use -= reclaimable;
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if (isset(&qs->txq_stopped, TXQ_ETH))
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clrbit(&qs->txq_stopped, TXQ_ETH);
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return (reclaimable);
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}
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static int
|
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cxgb_pcpu_start_(struct sge_qset *qs, struct mbuf *immpkt, int tx_flush)
|
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{
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int i, err, initerr, flush, reclaimed, stopped;
|
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struct port_info *pi;
|
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struct sge_txq *txq;
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adapter_t *sc;
|
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uint32_t max_desc;
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pi = qs->port;
|
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initerr = err = i = reclaimed = 0;
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sc = pi->adapter;
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|
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retry:
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if (!pi->link_config.link_ok)
|
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initerr = ENXIO;
|
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else if (qs->qs_flags & QS_EXITING)
|
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initerr = ENXIO;
|
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else {
|
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txq = &qs->txq[TXQ_ETH];
|
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|
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if (!buf_ring_empty(&txq->txq_mr))
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initerr = cxgb_pcpu_enqueue_packet_(qs, immpkt);
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else
|
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txq->immpkt = immpkt;
|
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|
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immpkt = NULL;
|
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}
|
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if (initerr && initerr != ENOBUFS) {
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if (cxgb_debug)
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printf("cxgb link down\n");
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if (immpkt)
|
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m_freem(immpkt);
|
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return (initerr);
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}
|
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|
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if ((tx_flush && (desc_reclaimable(txq) > 0)) || (desc_reclaimable(txq) > (TX_ETH_Q_SIZE>>1))) {
|
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int reclaimed = 0;
|
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|
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if (cxgb_debug) {
|
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device_printf(qs->port->adapter->dev,
|
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"cpuid=%d curcpu=%d reclaimable=%d txq=%p txq->cidx=%d txq->pidx=%d ",
|
||||
qs->qs_cpuid, curcpu, desc_reclaimable(txq),
|
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txq, txq->cidx, txq->pidx);
|
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}
|
||||
reclaimed = cxgb_pcpu_reclaim_tx(txq);
|
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if (cxgb_debug)
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printf("reclaimed=%d\n", reclaimed);
|
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}
|
||||
|
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stopped = isset(&qs->txq_stopped, TXQ_ETH);
|
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flush = ((!buf_ring_empty(&txq->txq_mr) && !stopped) || txq->immpkt);
|
||||
max_desc = tx_flush ? TX_ETH_Q_SIZE : TX_START_MAX_DESC;
|
||||
err = flush ? cxgb_tx_common(qs->port->ifp, qs, max_desc) : ENOSPC;
|
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|
||||
if ((tx_flush && flush && err == 0) && !buf_ring_empty(&txq->txq_mr)) {
|
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struct thread *td = curthread;
|
||||
|
||||
if (++i > 1) {
|
||||
thread_lock(td);
|
||||
sched_prio(td, PRI_MIN_TIMESHARE);
|
||||
thread_unlock(td);
|
||||
}
|
||||
if (i > 50) {
|
||||
if (cxgb_debug)
|
||||
device_printf(qs->port->adapter->dev,
|
||||
"exceeded max enqueue tries\n");
|
||||
return (EBUSY);
|
||||
}
|
||||
goto retry;
|
||||
}
|
||||
err = (initerr != 0) ? initerr : err;
|
||||
|
||||
return (err);
|
||||
}
|
||||
|
||||
int
|
||||
cxgb_pcpu_start(struct ifnet *ifp, struct mbuf *immpkt)
|
||||
{
|
||||
uint32_t cookie;
|
||||
int err, qidx, locked, resid;
|
||||
struct port_info *pi;
|
||||
struct sge_qset *qs;
|
||||
struct sge_txq *txq = NULL /* gcc is dumb */;
|
||||
struct adapter *sc;
|
||||
|
||||
pi = ifp->if_softc;
|
||||
sc = pi->adapter;
|
||||
qs = NULL;
|
||||
qidx = resid = err = cookie = locked = 0;
|
||||
|
||||
if (immpkt && (immpkt->m_pkthdr.rss_hash != 0)) {
|
||||
cookie = immpkt->m_pkthdr.rss_hash;
|
||||
qidx = cxgb_pcpu_cookie_to_qidx(pi, cookie);
|
||||
DPRINTF("hash=0x%x qidx=%d cpu=%d\n", immpkt->m_pkthdr.rss_hash, qidx, curcpu);
|
||||
qs = &pi->adapter->sge.qs[qidx];
|
||||
} else
|
||||
qs = &pi->adapter->sge.qs[pi->first_qset];
|
||||
|
||||
txq = &qs->txq[TXQ_ETH];
|
||||
|
||||
if (((sc->tunq_coalesce == 0) || (buf_ring_count(&txq->txq_mr) > TX_WR_COUNT_MAX)) && mtx_trylock(&txq->lock)) {
|
||||
txq->flags |= TXQ_TRANSMITTING;
|
||||
err = cxgb_pcpu_start_(qs, immpkt, FALSE);
|
||||
txq->flags &= ~TXQ_TRANSMITTING;
|
||||
resid = (buf_ring_count(&txq->txq_mr) > 64) || (desc_reclaimable(txq) > 64);
|
||||
mtx_unlock(&txq->lock);
|
||||
} else if (immpkt)
|
||||
err = cxgb_pcpu_enqueue_packet_(qs, immpkt);
|
||||
|
||||
if (resid && (txq->flags & TXQ_TRANSMITTING) == 0)
|
||||
wakeup(qs);
|
||||
|
||||
return ((err == ENOSPC) ? 0 : err);
|
||||
}
|
||||
|
||||
void
|
||||
cxgb_start(struct ifnet *ifp)
|
||||
{
|
||||
struct port_info *pi = ifp->if_softc;
|
||||
struct sge_qset *qs;
|
||||
struct mbuf *m, *head, *tail, *lhead, *ltail;
|
||||
int calc_cookie, qidx, i;
|
||||
|
||||
IFQ_LOCK(&ifp->if_snd);
|
||||
IFQ_DEQUEUE_NOLOCK(&ifp->if_snd, m);
|
||||
head = tail = m;
|
||||
i = 0;
|
||||
while (m != NULL) {
|
||||
IFQ_DEQUEUE_NOLOCK(&ifp->if_snd, m);
|
||||
tail->m_nextpkt = m;
|
||||
tail = m;
|
||||
i++;
|
||||
}
|
||||
IFQ_UNLOCK(&ifp->if_snd);
|
||||
printf("dequeued %d packets\n", i);
|
||||
lhead = ltail = NULL;
|
||||
for (m = head; m != NULL; m = head->m_nextpkt) {
|
||||
calc_cookie = cxgb_pcpu_calc_cookie(ifp, m);
|
||||
qidx = cxgb_pcpu_cookie_to_qidx(pi, calc_cookie);
|
||||
qs = &pi->adapter->sge.qs[qidx];
|
||||
critical_enter();
|
||||
if (qs->qs_cpuid == curcpu) {
|
||||
if (lhead == NULL)
|
||||
lhead = m;
|
||||
else
|
||||
ltail->m_nextpkt = m;
|
||||
ltail = m;
|
||||
critical_exit();
|
||||
} else {
|
||||
critical_exit();
|
||||
cxgb_pcpu_enqueue_packet_(qs, m);
|
||||
}
|
||||
}
|
||||
if (curcpu < SGE_QSETS) {
|
||||
qs = &pi->adapter->sge.qs[curcpu];
|
||||
/*
|
||||
* Assume one-to-one mapping of qset to CPU for now XXX
|
||||
*/
|
||||
|
||||
(void)cxgb_pcpu_start_(qs, NULL, TRUE);
|
||||
/*
|
||||
* XXX multiple packets
|
||||
*/
|
||||
cxgb_pcpu_enqueue_packet_(qs, lhead);
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
cxgb_pcpu_start_proc(void *arg)
|
||||
{
|
||||
struct sge_qset *qs = arg;
|
||||
struct thread *td;
|
||||
struct sge_txq *txq = &qs->txq[TXQ_ETH];
|
||||
int idleticks, err = 0;
|
||||
struct adapter *sc = qs->port->adapter;
|
||||
|
||||
td = curthread;
|
||||
|
||||
sleep_ticks = hz/100;
|
||||
qs->qs_flags |= QS_RUNNING;
|
||||
thread_lock(td);
|
||||
sched_bind(td, qs->qs_cpuid);
|
||||
thread_unlock(td);
|
||||
|
||||
DELAY(qs->qs_cpuid*100000);
|
||||
if (bootverbose)
|
||||
printf("bound to %d running on %d\n", qs->qs_cpuid, curcpu);
|
||||
|
||||
for (;;) {
|
||||
if (qs->qs_flags & QS_EXITING)
|
||||
break;
|
||||
|
||||
if ((qs->port->ifp->if_drv_flags && IFF_DRV_RUNNING) == 0) {
|
||||
idleticks = hz;
|
||||
if (!buf_ring_empty(&txq->txq_mr) ||
|
||||
!mbufq_empty(&txq->sendq))
|
||||
cxgb_pcpu_free(qs);
|
||||
goto done;
|
||||
} else
|
||||
idleticks = sleep_ticks;
|
||||
if (mtx_trylock(&txq->lock)) {
|
||||
txq->flags |= TXQ_TRANSMITTING;
|
||||
err = cxgb_pcpu_start_(qs, NULL, TRUE);
|
||||
txq->flags &= ~TXQ_TRANSMITTING;
|
||||
mtx_unlock(&txq->lock);
|
||||
} else
|
||||
err = EINPROGRESS;
|
||||
|
||||
if (mtx_trylock(&qs->rspq.lock)) {
|
||||
process_responses(sc, qs, -1);
|
||||
|
||||
refill_fl_service(sc, &qs->fl[0]);
|
||||
refill_fl_service(sc, &qs->fl[1]);
|
||||
t3_write_reg(sc, A_SG_GTS, V_RSPQ(qs->rspq.cntxt_id) |
|
||||
V_NEWTIMER(qs->rspq.next_holdoff) | V_NEWINDEX(qs->rspq.cidx));
|
||||
|
||||
mtx_unlock(&qs->rspq.lock);
|
||||
}
|
||||
if ((!buf_ring_empty(&txq->txq_mr)) && err == 0) {
|
||||
if (cxgb_debug)
|
||||
printf("head=%p cons=%d prod=%d\n",
|
||||
txq->sendq.head, txq->txq_mr.br_cons,
|
||||
txq->txq_mr.br_prod);
|
||||
continue;
|
||||
}
|
||||
done:
|
||||
tsleep(qs, 1, "cxgbidle", sleep_ticks);
|
||||
}
|
||||
|
||||
if (bootverbose)
|
||||
device_printf(qs->port->adapter->dev, "exiting thread for cpu%d\n", qs->qs_cpuid);
|
||||
|
||||
|
||||
cxgb_pcpu_free(qs);
|
||||
t3_free_qset(qs->port->adapter, qs);
|
||||
|
||||
qs->qs_flags &= ~QS_RUNNING;
|
||||
kproc_exit(0);
|
||||
}
|
||||
|
||||
static int
|
||||
cxgb_pcpu_cookie_to_qidx(struct port_info *pi, uint32_t cookie)
|
||||
{
|
||||
int qidx;
|
||||
uint32_t tmp;
|
||||
|
||||
/*
|
||||
* Will probably need to be changed for 4-port XXX
|
||||
*/
|
||||
tmp = pi->tx_chan ? cookie : cookie & ((RSS_TABLE_SIZE>>1)-1);
|
||||
DPRINTF(" tmp=%d ", tmp);
|
||||
qidx = (tmp & (pi->nqsets -1)) + pi->first_qset;
|
||||
|
||||
return (qidx);
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
cxgb_pcpu_startup_threads(struct adapter *sc)
|
||||
{
|
||||
int i, j;
|
||||
struct proc *p;
|
||||
|
||||
for (i = 0; i < (sc)->params.nports; ++i) {
|
||||
struct port_info *pi = adap2pinfo(sc, i);
|
||||
|
||||
for (j = 0; j < pi->nqsets; ++j) {
|
||||
struct sge_qset *qs;
|
||||
|
||||
qs = &sc->sge.qs[pi->first_qset + j];
|
||||
qs->port = pi;
|
||||
qs->qs_cpuid = ((pi->first_qset + j) % mp_ncpus);
|
||||
device_printf(sc->dev, "starting thread for %d\n", qs->qs_cpuid);
|
||||
|
||||
kproc_create(cxgb_pcpu_start_proc, qs, &p,
|
||||
RFNOWAIT, 0, "cxgbsp");
|
||||
DELAY(200);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
cxgb_pcpu_shutdown_threads(struct adapter *sc)
|
||||
{
|
||||
int i, j;
|
||||
|
||||
for (i = 0; i < sc->params.nports; i++) {
|
||||
struct port_info *pi = &sc->port[i];
|
||||
int first = pi->first_qset;
|
||||
for (j = 0; j < pi->nqsets; j++) {
|
||||
struct sge_qset *qs = &sc->sge.qs[first + j];
|
||||
|
||||
qs->qs_flags |= QS_EXITING;
|
||||
wakeup(qs);
|
||||
tsleep(&sc, PRI_MIN_TIMESHARE, "cxgb unload 0", hz>>2);
|
||||
while (qs->qs_flags & QS_RUNNING) {
|
||||
qs->qs_flags |= QS_EXITING;
|
||||
device_printf(sc->dev, "qset thread %d still running - sleeping\n", first + j);
|
||||
tsleep(&sc, PRI_MIN_TIMESHARE, "cxgb unload 1", 2*hz);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
#endif
|
||||
Loading…
Reference in a new issue