diff options
| author | Chris Packham <chris.packham@alliedtelesis.co.nz> | 2020-02-05 03:11:12 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-02-13 00:50:32 +0300 |
| commit | 422d97b8b05ed38cc5f67522ddb821868ea272a7 (patch) | |
| tree | aecc83db4ac470447b390c93c9ed6438b8643429 /drivers/staging/octeon/ethernet-rx.h | |
| parent | 96b06c0a16f737e9ea7dff1e23dd5f6d847e6731 (diff) | |
| download | linux-422d97b8b05ed38cc5f67522ddb821868ea272a7.tar.xz | |
Revert "staging: octeon: delete driver"
This reverts commit 710d7fbe21ee2ceab121f1f84a20edf68f9f9742.
Re-instate the code so subsequent commits can clean it up and get it
building properly.
Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Link: https://lore.kernel.org/r/20200205001116.14096-3-chris.packham@alliedtelesis.co.nz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/octeon/ethernet-rx.h')
| -rw-r--r-- | drivers/staging/octeon/ethernet-rx.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/drivers/staging/octeon/ethernet-rx.h b/drivers/staging/octeon/ethernet-rx.h new file mode 100644 index 000000000000..ff6482fa20d6 --- /dev/null +++ b/drivers/staging/octeon/ethernet-rx.h @@ -0,0 +1,31 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * This file is based on code from OCTEON SDK by Cavium Networks. + * + * Copyright (c) 2003-2007 Cavium Networks + */ + +void cvm_oct_poll_controller(struct net_device *dev); +void cvm_oct_rx_initialize(void); +void cvm_oct_rx_shutdown(void); + +static inline void cvm_oct_rx_refill_pool(int fill_threshold) +{ + int number_to_free; + int num_freed; + /* Refill the packet buffer pool */ + number_to_free = + cvmx_fau_fetch_and_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, 0); + + if (number_to_free > fill_threshold) { + cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, + -number_to_free); + num_freed = cvm_oct_mem_fill_fpa(CVMX_FPA_PACKET_POOL, + CVMX_FPA_PACKET_POOL_SIZE, + number_to_free); + if (num_freed != number_to_free) { + cvmx_fau_atomic_add32(FAU_NUM_PACKET_BUFFERS_TO_FREE, + number_to_free - num_freed); + } + } +} |