From: Vadim Fedorenko <vadim.fedorenko@linux.dev>
To: Nelson Escobar <neescoba@cisco.com>,
John Daley <johndale@cisco.com>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Christian Benvenuti <benve@cisco.com>,
Satish Kharat <satishkh@cisco.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S. Miller" <davem@davemloft.net>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
Simon Horman <horms@kernel.org>
Subject: Re: [PATCH net-next v4 2/7] enic: Make MSI-X I/O interrupts come after the other required ones
Date: Thu, 14 Nov 2024 16:22:37 +0000 [thread overview]
Message-ID: <ff83386c-2102-4497-be0a-772bd7e6c30c@linux.dev> (raw)
In-Reply-To: <20241113-remove_vic_resource_limits-v4-2-a34cf8570c67@cisco.com>
On 13/11/2024 23:56, Nelson Escobar wrote:
> The VIC hardware has a constraint that the MSIX interrupt used for errors
> be specified as a 7 bit number. Before this patch, it was allocated after
> the I/O interrupts, which would cause a problem if 128 or more I/O
> interrupts are in use.
>
> So make the required interrupts come before the I/O interrupts to
> guarantee the error interrupt offset never exceeds 7 bits.
>
> Co-developed-by: John Daley <johndale@cisco.com>
> Signed-off-by: John Daley <johndale@cisco.com>
> Co-developed-by: Satish Kharat <satishkh@cisco.com>
> Signed-off-by: Satish Kharat <satishkh@cisco.com>
> Reviewed-by: Simon Horman <horms@kernel.org>
> Signed-off-by: Nelson Escobar <neescoba@cisco.com>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
next prev parent reply other threads:[~2024-11-14 16:22 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-13 23:56 [PATCH net-next v4 0/7] enic: Use all the resources configured on VIC Nelson Escobar
2024-11-13 23:56 ` [PATCH net-next v4 1/7] enic: Create enic_wq/rq structures to bundle per wq/rq data Nelson Escobar
2024-11-14 16:15 ` Vadim Fedorenko
2024-11-14 19:46 ` Nelson Escobar (neescoba)
2024-11-13 23:56 ` [PATCH net-next v4 2/7] enic: Make MSI-X I/O interrupts come after the other required ones Nelson Escobar
2024-11-14 16:22 ` Vadim Fedorenko [this message]
2024-11-13 23:56 ` [PATCH net-next v4 3/7] enic: Save resource counts we read from HW Nelson Escobar
2024-11-14 16:16 ` Vadim Fedorenko
2024-11-13 23:56 ` [PATCH net-next v4 4/7] enic: Allocate arrays in enic struct based on VIC config Nelson Escobar
2024-11-14 16:21 ` Vadim Fedorenko
2024-11-13 23:56 ` [PATCH net-next v4 5/7] enic: Adjust used MSI-X wq/rq/cq/interrupt resources in a more robust way Nelson Escobar
2024-11-14 16:29 ` Vadim Fedorenko
2024-11-13 23:56 ` [PATCH net-next v4 6/7] enic: Move enic resource adjustments to separate function Nelson Escobar
2024-11-14 16:31 ` Vadim Fedorenko
2024-11-13 23:56 ` [PATCH net-next v4 7/7] enic: Move kdump check into enic_adjust_resources() Nelson Escobar
2024-11-14 16:32 ` Vadim Fedorenko
2024-11-15 23:50 ` [PATCH net-next v4 0/7] enic: Use all the resources configured on VIC patchwork-bot+netdevbpf
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