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explicitly check TSO flag

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don't clear and then set M_PKTHDR, m_gethdr sets it correctly
improve error handling on m_gethdr failure

MFC after: 3 days
This commit is contained in:
Kip Macy 2007-04-12 03:33:30 +00:00
parent 23ed7b513f
commit dd782506d8
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=168644
1 changed files with 8 additions and 12 deletions
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20
sys/dev/cxgb/cxgb_sge.c
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@ -966,8 +966,8 @@ t3_encap(struct port_info *p, struct mbuf **m)
struct sge_txq *txq;
struct tx_sw_desc *stx;
struct txq_state txqs;
unsigned int nsegs, ndesc, flits, cntrl, mlen, tso_info;
int err;
unsigned int nsegs, ndesc, flits, cntrl, mlen;
int err, tso_info = 0;
struct work_request_hdr *wrp;
struct tx_sw_desc *txsd;
@ -1002,10 +1002,9 @@ t3_encap(struct port_info *p, struct mbuf **m)
#ifdef VLAN_SUPPORTED
if (m0->m_flags & M_VLANTAG)
cntrl |= F_TXPKT_VLAN_VLD | V_TXPKT_VLAN(m0->m_pkthdr.ether_vtag);
if (m0->m_pkthdr.csum_flags & (CSUM_TSO))
tso_info = V_LSO_MSS(m0->m_pkthdr.tso_segsz);
tso_info = V_LSO_MSS(m0->m_pkthdr.tso_segsz);
#else
tso_info = 0;
#endif
if (tso_info) {
int eth_type;
@ -1808,7 +1807,6 @@ get_packet(adapter_t *adap, unsigned int drop_thres, struct sge_qset *qs,
DBG(DBG_RX, ("get_packet: SOP-EOP m %p\n", m));
m_cljset(m, sd->cl, fl->type);
m->m_len = m->m_pkthdr.len = len;
m->m_flags |= M_PKTHDR;
ret = 1;
goto done;
break;
@ -1818,7 +1816,6 @@ get_packet(adapter_t *adap, unsigned int drop_thres, struct sge_qset *qs,
break;
case RSPQ_SOP:
DBG(DBG_RX, ("get_packet: SOP m %p\n", m));
m->m_flags |= M_PKTHDR;
m_iovinit(m);
ret = 0;
break;
@ -1890,8 +1887,8 @@ check_ring_db(adapter_t *adap, struct sge_qset *qs,
static void
bind_ithread(int cpu)
{
KASSERT(cpu < mp_ncpus, ("invalid cpu identifier"));
#if 0
KASSERT(cpu < mp_ncpus, ("invalid cpu identifier"));
if (mp_ncpus > 1) {
mtx_lock_spin(&sched_lock);
sched_bind(curthread, cpu);
@ -1958,7 +1955,7 @@ process_responses(adapter_t *adap, struct sge_qset *qs, int budget)
struct mbuf *m = NULL;
if (cxgb_debug)
printf("IMM DATA VALID\n");
if (rspq->m == NULL)
if (rspq->m == NULL)
rspq->m = m_gethdr(M_NOWAIT, MT_DATA);
else
m = m_gethdr(M_NOWAIT, MT_DATA);
@ -1974,10 +1971,9 @@ process_responses(adapter_t *adap, struct sge_qset *qs, int budget)
} else if (r->len_cq) {
int drop_thresh = eth ? SGE_RX_DROP_THRES : 0;
if (rspq->m == NULL) {
if (rspq->m == NULL)
rspq->m = m_gethdr(M_NOWAIT, MT_DATA);
rspq->m->m_flags = 0;
} else if (rspq->m == NULL) {
if (rspq->m == NULL) {
log(LOG_WARNING, "failed to get mbuf for packet\n");
break;
}