300637 |
25-May-2016 |
jhibbits |
Set the TLB caching properties for portals at attach time.
This was found while reworking the device tree nodes for dtsec to match the Linux device tree. Instead of waiting and expecting later code to call dpaa_portal_map_registers(), do the equivalent immediately upon mapping. Otherwise, it's possible to access the pages before that function is called, and hang the CPU.
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299399 |
11-May-2016 |
jhibbits |
Don't mark the initial portal registers as fully mapped.
BMan and QMan will do this at attach time. Even though the registers are mapped now, dpaa_portal_map_registers() will be called at BMan and QMan attach time, updating the mappings to be private, and in the case of cache-enabled registers, marked as coherent memory mappings.
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298237 |
19-Apr-2016 |
jhibbits |
Fix SMP booting for PowerPC Book-E
Summary: PowerPC Book-E SMP is currently broken for unknown reasons. Pull in Semihalf changes made c2012 for e500mc/e5500, which enables booting SMP.
This eliminates the shared software TLB1 table, replacing it with tlb1_read_entry() function.
This does not yet support ePAPR SMP booting, and doesn't handle resetting CPUs already released (ePAPR boot releases APs to a spin loop waiting on a specific address). This will be addressed in the near future by using the MPIC to reset the AP into our own alternate boot address.
This does include a change to the dpaa/dtsec(4) driver, to mark the portals as CPU-private.
Test Plan: Tested on Amiga X5000/20 (P5020). Boots, prints the following messages:
Adding CPU 0, pir=0, awake=1 Waking up CPU 1 (dev=1) Adding CPU 1, pir=20, awake=1 SMP: AP CPU #1 launched
top(1) shows CPU1 active.
Obtained from: Semihalf Relnotes: Yes Differential Revision: https://reviews.freebsd.org/D5945
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296177 |
29-Feb-2016 |
jhibbits |
Add support for the Freescale dTSEC DPAA-based ethernet controller.
Freescale's QorIQ line includes a new ethernet controller, based on their Datapath Acceleration Architecture (DPAA). This uses a combination of a Frame manager, Buffer manager, and Queue manager to improve performance across all interfaces by being able to pass data directly between hardware acceleration interfaces.
As part of this import, Freescale's Netcomm Software (ncsw) driver is imported. This was an attempt by Freescale to create an OS-agnostic sub-driver for managing the hardware, using shims to interface to the OS-specific APIs. This work was abandoned, and Freescale's primary work is in the Linux driver (dual BSD/GPL license). Hence, this was imported directly to sys/contrib, rather than going through the vendor area. Going forward, FreeBSD-specific changes may be made to the ncsw code, diverging from the upstream in potentially incompatible ways. An alternative could be to import the Linux driver itself, using the linuxKPI layer, as that would maintain parity with the vendor-maintained driver. However, the Linux driver has not been evaluated for reliability yet, and may have issues with the import, whereas the ncsw-based driver in this commit was completed by Semihalf 4 years ago, and is very stable.
Other SoC modules based on DPAA, which could be added in the future: * Security and Encryption engine (SEC4.x, SEC5.x) * RAID engine
Additional work to be done: * Implement polling mode * Test vlan support * Add support for the Pattern Matching Engine, which can do regular expression matching on packets.
This driver has been tested on the P5020 QorIQ SoC. Others listed in the dtsec(4) manual page are expected to work as the same DPAA engine is included in all.
Obtained from: Semihalf Relnotes: Yes Sponsored by: Alex Perez/Inertial Computing
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