the bus space tag and handle for a uart console, use the values returned by
that routine to set the global uart_bus_space_mem, instead of assuming that
there will be a global variable named fdtbus_bs_tag to set it from.
Also, use OF_getencprop() instead calling fdt32_to_cpu() separately.
- At Intel it is believed that most of their products support "only"
40 DMA segments so lower {EM,IGB}_MAX_SCATTER accordingly. Actually,
40 is more than plenty to handle full size TSO packets so it doesn't
make sense to further distinguish between MAC variants that really
can do 64 DMA segments. Moreover, capping at 40 DMA segments limits
the stack usage of {em,igb}_xmit() that - given the rare use of more
than these - previously hardly was justifiable, while still being
sufficient to avoid the problems seen with em(4) and EM_MAX_SCATTER
set to 32.
- In igb(4), pass the actually supported TSO parameters up the stack.
Previously, the defaults set in if_attach_internal() were applied,
i. e. a maximum of 35 TSO segments, which made supporting more than
these in the driver pointless. However, this might explain why no
problems were seen with IGB_MAX_SCATTER at 64.
- In em(4), take the 5 m_pullup(9) invocations performed by em_xmit()
in the TSO case into account when reporting TSO parameters upwards.
In the worst case, each of these calls will add another mbuf and,
thus, the requirement for an additional DMA segment. So for best
performance, it doesn't make sense to advertize a maximum of TSO
segments that typically will require defragmentation in em_xmit().
Again, this leaves enough room to handle full size TSO packets.
- Drop TSO macros from if_lem.h given that corresponding MACS don't
support TSO in the first place.
Reviewed by: erj, sbruno, jeffrey.e.pieper_intel.com
Approved by: erj
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D5238
Linux-driven changes to the way the chip's two interrupt controllers are
defined (we only support one of them) led to no interrupt processing, so
the system would hang after device instantiation. This workaround just
rewrites the FDT data on the fly to get interrupt handling back under the
control of the main GIC device.
If/when we ever support deep sleep modes that involve powering down the
main GIC, we'll have to undo this change, write a driver for the GPC-PIC,
and somehow manage the handoff of responsibilities between the two drivers
as the chip transitions in/out of deep sleep mode.
import it into the loader(8) env as dhcp.root-path, so that it overrides
any dhcp/bootp server-provided path.
Now if you have a dhcp server available you can easily net-boot a u-boot
system even if you don't control the dhcp server config, by setting just
two variables in the u-boot env:
loaderdev=net
rootpath=<nfsserverip>:<pathname>
Previously you had to either accept all the dhcp parameters from the
server without the ability to locally provide the rootpath, or you had
to forego dhcp and set more vars (ipaddr, netmask, serverip, rootpath).
Only L2 PIPT cache is supported for __ARM_ARCH >= 6.
In fact, this is just a pure proclamation as this option is used
only in armv4 specific files now.
need to include it explicitly when <vm/vm_param.h> is already included.
Suggested by: alc
Reviewed by: alc
Differential Revision: https://reviews.freebsd.org/D5379
It is only used in hv_netvsc_drv_freebsd.c; and rename it to hn_tx_done()
mainly to reserve "xmit" for ifnet.if_transmit implement.
While I'm here, remove unapplied comment.
Reviewed by: adrian
Approved by: adrian (mentor)
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D5345
Preamble to implement the ifnet.if_transmit method.
Reviewed by: adrian
Approved by: adrian (mentor)
MFC after: 1 week
Sponsored by: Microsoft OSTC
Differential Revision: https://reviews.freebsd.org/D5344
- Add URTWN_WITHOUT_UCODE option (will disable any firmware specific code
when set).
- Do not exclude the driver from build when MK_SOURCELESS_UCODE is set
(URTWN_WITHOUT_UCODE will be enforced unconditionally).
- Do not abort initialization when firmware cannot be loaded;
behave like the URTWN_WITHOUT_UCODE option was set.
- Drop some unused variables from urtwn_softc structure.
Tested with RTL8188EU and RTL8188CUS in HOSTAP and STA modes.
Reviewed by: kevlo
Approved by: adrian (mentor)
Differential Revision: https://reviews.freebsd.org/D4849
acpi_GetInteger() execution. Intel DMAR interrupt remapping code
needs to know UID of the HPET to properly route the FSB interrupts
from the HPET, even when interrupt remapping is disabled, and the code
is executed under some non-sleepable mutexes.
Cache HPET UIDs in the device softc at the attach time and provide
lock-less method to get UID, use the method from the dmar hpet
handling code instead of calling GetInteger().
Reported and tested by: Larry Rosenman <ler@lerctr.org>
Sponsored by: The FreeBSD Foundation
MFC after: 1 week
Extract common code from PowerPC's ofw_pci
Import portions of the PowerPC OF PCI implementation into
new file "ofw_pci.c", common for other platforms. The files ofw_pci.c and
ofw_pci.h from sys/powerpc/ofw no longer exist. All required declarations
are moved to sys/dev/ofw/ofw_pci.h.
This creates a new ofw_pci_write_ivar() function and modifies
ofw_pci_nranges(), ofw_pci_read_ivar(), ofw_pci_route_interrupt()
methods.
Most functions contain existing ppc implementations in the majority
unchanged. Now there is no need to have multiple identical copies
of methods for various architectures.
Submitted by: Marcin Mazurek <mma@semihalf.com>
Obtained from: Semihalf
Sponsored by: Annapurna Labs
Reviewed by: jhibbits, mmel
Differential Revision: https://reviews.freebsd.org/D4879
This needs to return to the drawing board as it breaks both
PowerPC and Sparc64 build.
Pointed out by: jhibbits
This simplifies checking for default resource range for bus_alloc_resource(),
and improves readability.
This is part of, and related to, the migration of rman_res_t from u_long to
uintmax_t.
Discussed with: jhb
Suggested by: marcel
The m_collapse() call would fail when transmitting medium-sized packets
when the interface mtu was set to 9000, so revert back to m_defrag(),
which does not fail.
Differential Revision: https://reviews.freebsd.org/D5207
Tested by: jeffrey.e.pieper@intel.com
Sponsored by: Intel Corporation
- I40E_PFINT_DYN_CTLN needs to be cleared, and not have a queue index
written to it.
- The interrupt linked list for each queue is changed to only include
the queue's Rx and Tx queues.
Differential Revision: https://reviews.freebsd.org/D5206
Reviewed by: sbruno
Tested by: jeffrey.e.pieper@intel.com
Sponsored by: Intel Corporation
- Change tc_mapping field to assign 64 queues instead of 16 to the PF's VSI;
add comments to describe how this is done.
- Set hash lut size to 512 when setting filter control; the lut size defaults
to 128 if this isn't set.
Differential Revision: https://reviews.freebsd.org/D5203
Reviewed by: gallatin
Tested by: jeffrey.e.pieper@intel.com
Sponsored by: Intel Corporation
