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Code Issues Releases Activity

cxgbe(4): Do not override the the global defaults for congestion drops.

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The hw.cxgbe.cong_drop knob is not affected by this change because the
driver sets up congestion drop on a per-queue basis.

MFC after:	3 days
This commit is contained in:
Navdeep Parhar 2015-07-06 20:28:42 +00:00
parent abb14e5ded
commit 41f7622b64
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=285220
1 changed files with 0 additions and 17 deletions
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17
sys/dev/cxgbe/t4_sge.c
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@ -472,12 +472,6 @@ t4_tweak_chip_settings(struct adapter *sc)
V_TIMERVALUE5(us_to_core_ticks(sc, intr_timer[5]));
t4_write_reg(sc, A_SGE_TIMER_VALUE_4_AND_5, v);
if (cong_drop == 0) {
m = F_TUNNELCNGDROP0 | F_TUNNELCNGDROP1 | F_TUNNELCNGDROP2 |
F_TUNNELCNGDROP3;
t4_set_reg_field(sc, A_TP_PARA_REG3, m, 0);
}
/* 4K, 16K, 64K, 256K DDP "page sizes" */
v = V_HPZ0(0) | V_HPZ1(2) | V_HPZ2(4) | V_HPZ3(6);
t4_write_reg(sc, A_ULP_RX_TDDP_PSZ, v);
@ -685,17 +679,6 @@ t4_read_chip_settings(struct adapter *sc)
s->timer_val[4] = G_TIMERVALUE4(r) / core_ticks_per_usec(sc);
s->timer_val[5] = G_TIMERVALUE5(r) / core_ticks_per_usec(sc);
if (cong_drop == 0) {
m = F_TUNNELCNGDROP0 | F_TUNNELCNGDROP1 | F_TUNNELCNGDROP2 |
F_TUNNELCNGDROP3;
r = t4_read_reg(sc, A_TP_PARA_REG3);
if (r & m) {
device_printf(sc->dev,
"invalid TP_PARA_REG3(0x%x)\n", r);
rc = EINVAL;
}
}
v = V_HPZ0(0) | V_HPZ1(2) | V_HPZ2(4) | V_HPZ3(6);
r = t4_read_reg(sc, A_ULP_RX_TDDP_PSZ);
if (r != v) {