From: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
To: Harman Kalra <hkalra@marvell.com>,
jerinj@marvell.com, david.marchand@redhat.com,
thomas@monjalon.net, Ray Kinsella <mdr@ashroe.eu>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH] doc: announce: make rte intr handle internal
Date: Mon, 2 Aug 2021 22:20:49 +0300 [thread overview]
Message-ID: <767555c1-3973-1df8-608f-1a80d650db92@oktetlabs.ru> (raw)
In-Reply-To: <20210802160352.135754-1-hkalra@marvell.com>
On 8/2/21 7:03 PM, Harman Kalra wrote:
> Moving struct rte_intr_handle as an internal structure to
> avoid any ABI breakages in future. Since this structure defines
> some static arrays and changing respective macros breaks the ABI.
> Eg:
> Currently RTE_MAX_RXTX_INTR_VEC_ID imposes a limit of maximum 512
> MSI-X interrupts that can be defined for a PCI device, while PCI
> specification allows maximum 2048 MSI-X interrupts that can be used.
> If some PCI device requires more than 512 vectors, either change the
> RTE_MAX_RXTX_INTR_VEC_ID limit or dynamically allocate based on
> PCI device MSI-X size on probe time. Either way its an ABI breakage.
>
> Discussion thread:
> https://mails.dpdk.org/archives/dev/2021-March/202959.html
>
> Change already included in 21.11 ABI improvement spreadsheet (item 42):
> https://docs.google.com/spreadsheets/d/1betlC000ua5SsSiJIcC54mCCCJnW6voH5Dqv9UxeyfE/edit#gid=0
>
> Signed-off-by: Harman Kalra <hkalra@marvell.com>
Acked-by: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>
next prev parent reply other threads:[~2021-08-02 19:20 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-02 16:03 Harman Kalra
2021-08-02 19:20 ` Andrew Rybchenko [this message]
2021-08-03 2:37 ` Xia, Chenbo
2021-08-03 4:05 ` Jerin Jacob
2021-08-04 14:22 ` Thomas Monjalon
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