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Split Rx/Tx from initialization code in ENA driver

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Move Rx/Tx routines to separate file.
Some functions:
* ena_restore_device,
* ena_destroy_device,
* ena_up,
* ena_down,
* ena_refill_rx_bufs
could be reused in upcoming netmap code in the driver. To make it
possible, they were moved to ena.h header.

Differential Revision: https://reviews.freebsd.org/D21933
Submitted by:  Rafal Kozik <rk@semihalf.com>
Obtained from: Semihalf
Sponsored by:  Amazon, Inc.
This commit is contained in:
mw 2019-10-31 15:44:26 +00:00
parent 2a537fe1bb
commit 16d17de234
5 changed files with 1248 additions and 1159 deletions
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1164
sys/dev/ena/ena.c
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6
sys/dev/ena/ena.h
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@ -465,4 +465,10 @@ static inline int ena_mbuf_count(struct mbuf *mbuf)
return count;
}
int ena_up(struct ena_adapter *);
void ena_down(struct ena_adapter *);
int ena_restore_device(struct ena_adapter *);
void ena_destroy_device(struct ena_adapter *, bool);
int ena_refill_rx_bufs(struct ena_ring *, uint32_t);
#endif /* !(ENA_H) */

1193
sys/dev/ena/ena_datapath.c Normal file
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42
sys/dev/ena/ena_datapath.h Normal file
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@ -0,0 +1,42 @@
/*-
* BSD LICENSE
*
* Copyright (c) 2015-2019 Amazon.com, Inc. or its affiliates.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*
*/
#ifndef ENA_TXRX_H
#define ENA_TXRX_H
void ena_cleanup(void *, int);
void ena_qflush(if_t);
int ena_mq_start(if_t, struct mbuf *);
void ena_deferred_mq_start(void *, int);
#endif /* ENA_TXRX_H */

2
sys/modules/ena/Makefile
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@ -34,7 +34,7 @@
${SRCTOP}/sys/contrib/ena-com
KMOD = if_ena
SRCS = ena.c ena_com.c ena_eth_com.c ena_sysctl.c
SRCS = ena.c ena_com.c ena_eth_com.c ena_sysctl.c ena_datapath.c
SRCS += device_if.h bus_if.h pci_if.h
CFLAGS += -I${SRCTOP}/sys/contrib