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Disable automatic IP ID increment. Due to a hardware bug the automatic

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IP ID increment in TSO case generated corrupted IP packets.
This change brings back TSO capability.
This commit is contained in:
Pyun YongHyeon 2007-06-11 01:55:09 +00:00
parent bdfbdcec6a
commit cf7a67bf4b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=170522
1 changed files with 0 additions and 15 deletions
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15
sys/dev/msk/if_msk.c
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@ -1452,19 +1452,11 @@ msk_attach(device_t dev)
*/
ifp->if_capabilities = IFCAP_TXCSUM;
ifp->if_hwassist = MSK_CSUM_FEATURES;
#if 0
/*
* Under certain circumtances, if TSO is active, Yukon II generates
* corrupted IP packets. Disable TSO until we find a working
* workaround or a new silicon revision that doesn't have this
* hardware bug.
*/
if (sc->msk_hw_id != CHIP_ID_YUKON_EC_U) {
/* It seems Yukon EC Ultra doesn't support TSO. */
ifp->if_capabilities |= IFCAP_TSO4;
ifp->if_hwassist |= CSUM_TSO;
}
#endif
ifp->if_capenable = ifp->if_capabilities;
ifp->if_ioctl = msk_ioctl;
ifp->if_start = msk_start;
@ -3766,13 +3758,6 @@ msk_init_locked(struct msk_if_softc *sc_if)
CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_txq, Q_CSR), BMU_CLR_RESET);
CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_txq, Q_CSR), BMU_OPER_INIT);
CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_txq, Q_CSR), BMU_FIFO_OP_ON);
/* Increase IPID when hardware generates IP packets in TSO. */
if ((ifp->if_hwassist & CSUM_TSO) != 0)
CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_txq, Q_CSR),
BMU_TX_IPIDINCR_ON);
else
CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_txq, Q_CSR),
BMU_TX_IPIDINCR_OFF);
CSR_WRITE_2(sc, Q_ADDR(sc_if->msk_txq, Q_WM), MSK_BMU_TX_WM);
if (sc->msk_hw_id == CHIP_ID_YUKON_EC_U &&
sc->msk_hw_rev == CHIP_REV_YU_EC_U_A0) {