From patchwork Fri Dec 1 15:06:43 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mathias Nyman X-Patchwork-Id: 749442 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="aBj/6mMq" Received: from mgamail.intel.com (mgamail.intel.com [134.134.136.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F379ED6C for ; Fri, 1 Dec 2023 07:06:07 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1701443168; x=1732979168; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=AqFIhtMHT+eCGtu53Ar9DDlFeygAWhDZg93X3dF6MVM=; b=aBj/6mMqPAcWhSfXkw+cK+InsFtEqSHHf2YyNcedXOIfbgsfT5Sz2OBu HQcsQv1DC/xA8YJ2+fDB4CM2X+RX++C6A+8deIvZ/v0Kj7+cnBh10UfH0 ApRghTmsLkfW5vdbs2DC8a02rUAw+kXdclgWelLBvQ7N0996y0uuhtHiz ORJn91MCpyFcdsuN2p+zHMJWMAP9ef8o+2I+4s/qPtWbzdUxpAbg+wOw/ 0hDrRCkHwsNp4s6zdl057XcDuo7gvoqp694R24rFw377Jvvh3oyysHOUr HYaoenlVTL9MIv8gUXQJVDnPkAc80R49HPVusoqnUzhHBNHi+9unygD8M A==; X-IronPort-AV: E=McAfee;i="6600,9927,10911"; a="396309763" X-IronPort-AV: E=Sophos;i="6.04,241,1695711600"; d="scan'208";a="396309763" Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Dec 2023 07:06:07 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10911"; a="943112645" X-IronPort-AV: E=Sophos;i="6.04,241,1695711600"; d="scan'208";a="943112645" Received: from mattu-haswell.fi.intel.com ([10.237.72.199]) by orsmga005.jf.intel.com with ESMTP; 01 Dec 2023 07:06:06 -0800 From: Mathias Nyman To: Cc: , Niklas Neronin , Mathias Nyman Subject: [PATCH 15/19] xhci: change 'msix_count' to encompass MSI or MSI-X vectors Date: Fri, 1 Dec 2023 17:06:43 +0200 Message-Id: <20231201150647.1307406-16-mathias.nyman@linux.intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231201150647.1307406-1-mathias.nyman@linux.intel.com> References: <20231201150647.1307406-1-mathias.nyman@linux.intel.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Niklas Neronin Instead of variable 'msix_count' containing the number of MSI-X vectors, now it can contains MSI or MSI-X vector amount. Because both interrupt methods allow several vectors. Thus, 'msix_count' is renamed to 'nvecs'. Additionally, instead of storing the maximum possible vector amount, now it stores the amount of successfully allocated vectors, or negative integer on allocation failure. Signed-off-by: Niklas Neronin Signed-off-by: Mathias Nyman --- drivers/usb/host/xhci-pci.c | 14 +++++++------- drivers/usb/host/xhci.h | 4 ++-- 2 files changed, 9 insertions(+), 9 deletions(-) diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index dbec0a315566..2307164a1e81 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -142,12 +142,12 @@ static int xhci_try_enable_msi(struct usb_hcd *hcd) * - num_online_cpus: maximum MSI-X vectors per CPUs core. * Add additional 1 vector to ensure always available interrupt. */ - xhci->msix_count = min(num_online_cpus() + 1, - HCS_MAX_INTRS(xhci->hcs_params1)); + xhci->nvecs = min(num_online_cpus() + 1, + HCS_MAX_INTRS(xhci->hcs_params1)); - ret = pci_alloc_irq_vectors(pdev, xhci->msix_count, xhci->msix_count, - PCI_IRQ_MSIX); - if (ret < 0) { + xhci->nvecs = pci_alloc_irq_vectors(pdev, xhci->nvecs, xhci->nvecs, + PCI_IRQ_MSIX); + if (xhci->nvecs < 0) { xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Failed to enable MSI-X"); goto setup_msi; } @@ -166,8 +166,8 @@ static int xhci_try_enable_msi(struct usb_hcd *hcd) setup_msi: /* TODO: Check with MSI Soc for sysdev */ - ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI); - if (ret < 0) { + xhci->nvecs = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI); + if (xhci->nvecs < 0) { xhci_dbg_trace(xhci, trace_xhci_dbg_init, "failed to allocate MSI entry"); goto legacy_irq; } diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 3ea5c092bba7..b166f47e379f 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1760,8 +1760,8 @@ struct xhci_hcd { int page_size; /* Valid values are 12 to 20, inclusive */ int page_shift; - /* msi-x vectors */ - int msix_count; + /* MSI-X/MSI vectors */ + int nvecs; /* optional clocks */ struct clk *clk; struct clk *reg_clk;