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net/ena/base: use 48-bit memory addresses

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ENA device is using 48-bit memory for IO. Because of that, the upper
limit had to be updated.

From the driver perspective, it's just a cosmetic change to make
definition of the structure 'ena_common_mem_addr' more descriptive and
the address value was verified anyway for the valid range in the
function 'ena_com_mem_addr_set()'.

Signed-off-by: Michal Krawczyk <mk@semihalf.com>
Reviewed-by: Igor Chauskin <igorch@amazon.com>
Reviewed-by: Guy Tzalik <gtzalik@amazon.com>
This commit is contained in:
Michal Krawczyk 2020-04-08 10:29:04 +02:00 committed by Ferruh Yigit
parent 14f3f532a1
commit a366fe4164
2 changed files with 7 additions and 3 deletions
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2
drivers/net/ena/base/ena_com.c
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@ -73,7 +73,7 @@ static int ena_com_mem_addr_set(struct ena_com_dev *ena_dev,
} }
ena_addr->mem_addr_low = lower_32_bits(addr); ena_addr->mem_addr_low = lower_32_bits(addr);
ena_addr->mem_addr_high = upper_32_bits(addr); ena_addr->mem_addr_high = (u16)upper_32_bits(addr);
return 0; return 0;
} }

8
drivers/net/ena/base/ena_defs/ena_common_defs.h
View File

@ -1,5 +1,5 @@
/* SPDX-License-Identifier: BSD-3-Clause /* SPDX-License-Identifier: BSD-3-Clause
* Copyright (c) 2015-2019 Amazon.com, Inc. or its affiliates. * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
* All rights reserved. * All rights reserved.
*/ */
@ -9,10 +9,14 @@
#define ENA_COMMON_SPEC_VERSION_MAJOR 2 #define ENA_COMMON_SPEC_VERSION_MAJOR 2
#define ENA_COMMON_SPEC_VERSION_MINOR 0 #define ENA_COMMON_SPEC_VERSION_MINOR 0
/* ENA operates with 48-bit memory addresses. ena_mem_addr_t */
struct ena_common_mem_addr { struct ena_common_mem_addr {
uint32_t mem_addr_low; uint32_t mem_addr_low;
uint32_t mem_addr_high; uint16_t mem_addr_high;
/* MBZ */
uint16_t reserved16;
}; };
#endif /* _ENA_COMMON_H_ */ #endif /* _ENA_COMMON_H_ */