[RFC PATCH V3 00/15] CAN: Add rx-fifo support and port flexcan to it

[David Jander]

This is the whole patch series again, adding the original rx-fifo framework
from Marc Kleine-Budde as well as the morphing into IRQ-offload mode and a
sample implementation using the flexcan driver.

The new flexcan driver supports full fifo abstraction mode for V10 and newer
peripherals, and simple irq-offloading for older parts.

Changes from V2:
- Re-issued all patches leading up to this, because some old flexcan work
needed re-basing.
- Some cosmetic fixes
- Added can_rx_fifo_reset() function
- Added rx-fifo support for can state- and error polling
- Added support for simple irq-offloading
- Re-enabled flexcan support for RTR reception on older IPs.

David Jander (11):
can: flexcan: Re-write receive path to use MB queue instead of FIFO
can: rx-fifo: Increase MB size limit from 32 to 64
can: rx-fifo: Change to do controller off-load in interrupt and NAPI
poll
can: rx-fifo: fix long lines
can: rx-fifo: Add can_rx_fifo_reset() function
can: rx-fifo: remove obsolete comment
can: rx-fifo: Add support for can state tracking and error polling
can: flexcan: Add support for RX-FIFO.
can: rx-fifo: Add support for simple irq offloading
can: flexcan: Add MB/Fifo specific column to comment table of IP
versions
can: flexcan: Re-enable RTR reception support for older flexcan IPs

Marc Kleine-Budde (4):
can: flexcan: add documentation about mailbox organizaiton
can: flexcan: rename crl2 -> ctrl2
can: flexcan: replace open coded mailbox code by proper defines
can: dev: add preliminary rx-fifo

drivers/net/can/dev.c | 324 +++++++++++++++++++++++++++++++++
drivers/net/can/flexcan.c | 452 ++++++++++++++++++++++++++++++++--------------
include/linux/can/dev.h | 46 +++++
3 files changed, 687 insertions(+), 135 deletions(-)