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Fix rxcsum issue introduced in r338838

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r338838 attempted to fix issues with rxcsum and rxcsum6.
However, the rxcsum bits were set as though if_setcapenablebit() was
being called, not if_togglecapenable() which is in use. As a result,
it was not possible to disable rxcsum when rxcsum6 was supported.

PR:		233004
Reported by:	lev
Reviewed by:	lev
MFC after:	3 days
Sponsored by:	Limelight Networks
Differential Revision:	https://reviews.freebsd.org/D17881
This commit is contained in:
Stephen Hurd 2018-11-07 19:31:48 +00:00
parent 4bf4b0f139
commit a42546df88
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=340236
1 changed files with 6 additions and 11 deletions
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17
sys/net/iflib.c
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@ -4256,18 +4256,13 @@ iflib_if_ioctl(if_t ifp, u_long command, caddr_t data)
setmask |= (mask & IFCAP_WOL);
/*
* If we're disabling any RX csum, disable all the ones
* the driver supports. This assumes all supported are
* enabled.
*
* Otherwise, if they've changed, enable all of them.
* If any RX csum has changed, change all the ones that
* are supported by the driver.
*/
if ((setmask & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)) <
(oldmask & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)))
setmask &= ~(IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6);
else if ((setmask & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)) !=
(oldmask & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)))
setmask |= (mask & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6));
if (setmask & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)) {
setmask |= ctx->ifc_softc_ctx.isc_capabilities &
(IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6);
}
/*
* want to ensure that traffic has stopped before we change any of the flags