From: bugzilla@dpdk.org
To: dev@dpdk.org
Subject: [Bug 1239] VMXNET 3 returned the wrong error code in initializing
Date: Sun, 28 May 2023 10:23:03 +0000 [thread overview]
Message-ID: <bug-1239-3@http.bugs.dpdk.org/> (raw)
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https://bugs.dpdk.org/show_bug.cgi?id=1239
Bug ID: 1239
Summary: VMXNET 3 returned the wrong error code in initializing
Product: DPDK
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Severity: minor
Priority: Low
Component: ethdev
Assignee: dev@dpdk.org
Reporter: corezeng@gmail.com
Target Milestone: ---
To call rte_eth_dev_start() to start a device, this function calls the function
pointer (dev_start) that was registered by the specific device.
rte_eth_dev_start() judges the integer returned from dev_start to continue or
return an error.
In the driver of VMXNET 3 the vmxnet3_dev_start is the function that needs to
be registered as dev_start, and it called vmxnet3_dev_rxtx_init().
In vmxnet3_dev_rxtx_init(), a wrong error code may be thrown after it invokes
vmxnet3_post_rx_bufs() because it negates the error code before returning it*.
It causes rte_eth_dev_start() to give a positive number to the invoker, but it
should be a negative number, as described in the comments.
*: At vmxnet3_rxtx.c:1318
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next reply other threads:[~2023-05-28 10:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-28 10:23 bugzilla [this message]
2023-06-12 20:55 ` bugzilla
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