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Rework store and forward configuration of TX MAC FIFO. Basically it

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enables store and forward mode except for jumbo frame on Yukon
Ultra.
This commit is contained in:
Pyun YongHyeon 2011-05-23 20:09:32 +00:00
parent 5e863acb63
commit 7b4f47c1db
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=222221
1 changed files with 10 additions and 23 deletions
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33
sys/dev/msk/if_msk.c
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@ -3654,37 +3654,24 @@ msk_set_tx_stfwd(struct msk_if_softc *sc_if)
ifp = sc_if->msk_ifp;
sc = sc_if->msk_softc;
switch (sc->msk_hw_id) {
case CHIP_ID_YUKON_EX:
if (sc->msk_hw_rev == CHIP_REV_YU_EX_A0)
goto yukon_ex_workaround;
if (ifp->if_mtu > ETHERMTU)
CSR_WRITE_4(sc,
MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T),
TX_JUMBO_ENA | TX_STFW_ENA);
else
CSR_WRITE_4(sc,
MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T),
TX_JUMBO_DIS | TX_STFW_ENA);
break;
default:
yukon_ex_workaround:
if ((sc->msk_hw_id == CHIP_ID_YUKON_EX &&
sc->msk_hw_rev != CHIP_REV_YU_EX_A0) ||
sc->msk_hw_id >= CHIP_ID_YUKON_SUPR) {
CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T),
TX_STFW_ENA);
} else {
if (ifp->if_mtu > ETHERMTU) {
/* Set Tx GMAC FIFO Almost Empty Threshold. */
CSR_WRITE_4(sc,
MR_ADDR(sc_if->msk_port, TX_GMF_AE_THR),
MSK_ECU_JUMBO_WM << 16 | MSK_ECU_AE_THR);
/* Disable Store & Forward mode for Tx. */
CSR_WRITE_4(sc,
MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T),
TX_JUMBO_ENA | TX_STFW_DIS);
CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T),
TX_STFW_DIS);
} else {
/* Enable Store & Forward mode for Tx. */
CSR_WRITE_4(sc,
MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T),
TX_JUMBO_DIS | TX_STFW_ENA);
CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T),
TX_STFW_ENA);
}
break;
}
}