linux-kernel - Re: [PATCH v2] bus: mhi: host: Enable MSI-X if the endpoint supports

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Message-ID: <20250108164317.3oz3gaesdryfygnk@thinkpad>
Date: Wed, 8 Jan 2025 22:13:17 +0530
From: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
To: Vivek Pernamitta <quic_vpernami@...cinc.com>
Cc: mhi@...ts.linux.dev, linux-arm-msm@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] bus: mhi: host: Enable MSI-X if the endpoint supports

On Wed, Jan 08, 2025 at 09:52:07PM +0530, Vivek Pernamitta wrote:

Subject should have 'pci_generic'. I'll add it while applying.

> Enable MSI-X if the endpoint supports.
> 
> Signed-off-by: Vivek Pernamitta <quic_vpernami@...cinc.com>

Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>

- Mani

> ---
> Changes in v2:
> - Updated commit text.
> - Link to v1: https://lore.kernel.org/r/20250106-msix-v1-1-91d7b7143118@quicinc.com
> ---
>  drivers/bus/mhi/host/pci_generic.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/bus/mhi/host/pci_generic.c b/drivers/bus/mhi/host/pci_generic.c
> index 56ba4192c89c16b4882d2e7c95f0dc689fd1e267..af1380220904a7e6232ff1b374da0a4ea49cb470 100644
> --- a/drivers/bus/mhi/host/pci_generic.c
> +++ b/drivers/bus/mhi/host/pci_generic.c
> @@ -949,7 +949,7 @@ static int mhi_pci_get_irqs(struct mhi_controller *mhi_cntrl,
>  	 */
>  	mhi_cntrl->nr_irqs = 1 + mhi_cntrl_config->num_events;
>  
> -	nr_vectors = pci_alloc_irq_vectors(pdev, 1, mhi_cntrl->nr_irqs, PCI_IRQ_MSI);
> +	nr_vectors = pci_alloc_irq_vectors(pdev, 1, mhi_cntrl->nr_irqs, PCI_IRQ_MSIX | PCI_IRQ_MSI);
>  	if (nr_vectors < 0) {
>  		dev_err(&pdev->dev, "Error allocating MSI vectors %d\n",
>  			nr_vectors);
> 
> ---
> base-commit: 8155b4ef3466f0e289e8fcc9e6e62f3f4dceeac2
> change-id: 20250106-msix-a4c5488ecafe
> 
> Best regards,
> -- 
> Vivek Pernamitta <quic_vpernami@...cinc.com>
> 

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