From: David Marchand <david.marchand@redhat.com>
To: Olivier Matz <olivier.matz@6wind.com>
Cc: dev@dpdk.org, Ray Kinsella <mdr@ashroe.eu>,
Parav Pandit <parav@nvidia.com>, Xueming Li <xuemingl@nvidia.com>,
Hemant Agrawal <hemant.agrawal@nxp.com>,
Sachin Saxena <sachin.saxena@oss.nxp.com>,
Stephen Hemminger <sthemmin@microsoft.com>,
Long Li <longli@microsoft.com>
Subject: Re: [PATCH] drivers/bus: set device NUMA node to unknown by default
Date: Fri, 30 Sep 2022 09:10:55 +0200 [thread overview]
Message-ID: <CAJFAV8wF1K4LFsFhuiKeAq2JMn_kPCUv41Lxd+f50QFLji=nmw@mail.gmail.com> (raw)
In-Reply-To: <20220929120512.480-1-olivier.matz@6wind.com>
On Thu, Sep 29, 2022 at 2:05 PM Olivier Matz <olivier.matz@6wind.com> wrote:
>
> The dev->device.numa_node field is set by each bus driver for
> every device it manages to indicate on which NUMA node this device lies.
>
> When this information is unknown, the assigned value is not consistent
> across the bus drivers.
>
> Set the default value to SOCKET_ID_ANY (-1) by all bus drivers
> when the NUMA information is unavailable.
>
> Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
- The dma/idxd driver, which has its own bus, seems ok, though I
would align its code for readability.
@@ -322,7 +322,7 @@ dsa_scan(void)
while ((wq = readdir(dev_dir)) != NULL) {
struct rte_dsa_device *dev;
- int numa_node = -1;
+ int numa_node = SOCKET_ID_ANY;
if (strncmp(wq->d_name, "wq", 2) != 0)
continue;
- There is an impact on upper classes of devices.
For ethdev, a port inherits the numa_node value from the rte_device object.
Yet, rte_eth_dev_socket_id() is described as:
* @return
* The NUMA socket ID to which the Ethernet device is connected or
* a default of zero if the socket could not be determined.
* -1 is returned is the port_id value is out of range.
--
David marchand
next prev parent reply other threads:[~2022-09-30 7:11 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-29 12:05 Olivier Matz
2022-09-30 7:10 ` David Marchand [this message]
2022-09-30 8:11 ` Olivier Matz
2022-10-04 14:58 ` [PATCH v2] " Olivier Matz
2022-10-05 8:52 ` David Marchand
2022-10-05 9:04 ` Olivier Matz
2022-10-05 9:32 ` Thomas Monjalon
2022-10-06 19:31 ` David Marchand
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