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Attempt to use the "new" BAR address for newer igb(4) devices. This code

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was dropped during the IFLIB migration.

Reported by:	olivier
Reviewed by:	mmacy@nextbsd.org
This commit is contained in:
sbruno 2017-01-12 14:18:52 +00:00
parent f676a0fd74
commit 2a3ce6ac2b
1 changed files with 11 additions and 0 deletions
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11
sys/dev/e1000/if_em.c
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@ -770,6 +770,8 @@ em_if_attach_pre(if_ctx_t ctx)
if (adapter->hw.mac.type >= igb_mac_min) {
int try_second_bar;
scctx->isc_txqsizes[0] = roundup2(scctx->isc_ntxd[0] * sizeof(union e1000_adv_tx_desc), EM_DBA_ALIGN);
scctx->isc_rxqsizes[0] = roundup2(scctx->isc_nrxd[0] * sizeof(union e1000_adv_rx_desc), EM_DBA_ALIGN);
scctx->isc_txrx = &igb_txrx;
@ -779,6 +781,15 @@ em_if_attach_pre(if_ctx_t ctx)
if (adapter->hw.mac.type != e1000_82575)
scctx->isc_tx_csum_flags |= CSUM_SCTP | CSUM_IP6_SCTP;
/*
** Some new devices, as with ixgbe, now may
** use a different BAR, so we need to keep
** track of which is used.
*/
try_second_bar = pci_read_config(dev, scctx->isc_msix_bar, 4);
if (try_second_bar == 0)
scctx->isc_msix_bar += 4;
} else if (adapter->hw.mac.type >= em_mac_min) {
scctx->isc_txqsizes[0] = roundup2(scctx->isc_ntxd[0]* sizeof(struct e1000_tx_desc), EM_DBA_ALIGN);
scctx->isc_rxqsizes[0] = roundup2(scctx->isc_nrxd[0] * sizeof(union e1000_rx_desc_extended), EM_DBA_ALIGN);