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Message-ID: <0fe33a0b-39a7-447f-bfe5-0f0dd656c078@intel.com>
Date: Wed, 27 Mar 2024 10:38:19 -0700
From: Dave Jiang <dave.jiang@...el.com>
To: Ira Weiny <ira.weiny@...el.com>, Fan Ni <fan.ni@...sung.com>,
Jonathan Cameron <Jonathan.Cameron@...wei.com>,
Navneet Singh <navneet.singh@...el.com>
Cc: Dan Williams <dan.j.williams@...el.com>,
Davidlohr Bueso <dave@...olabs.net>,
Alison Schofield <alison.schofield@...el.com>,
Vishal Verma <vishal.l.verma@...el.com>, linux-btrfs@...r.kernel.org,
linux-cxl@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 10/26] cxl/events: Factor out event msgnum configuration
On 3/24/24 4:18 PM, Ira Weiny wrote:
> Dynamic Capacity Devices (DCD) require events to process extent addition
> or removal. BIOS may have control over memory event processing.
>
> Factor out cxl_event_config_msgnums() in preparation for setting up DCD
> event interrupts separate from memory events.
>
> Signed-off-by: Ira Weiny <ira.weiny@...el.com>
Reviewed-by: Dave Jiang <dave.jiang@...el.com>
> ---
> drivers/cxl/pci.c | 24 ++++++++++++------------
> 1 file changed, 12 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/cxl/pci.c b/drivers/cxl/pci.c
> index 216881455364..cedd9b05f129 100644
> --- a/drivers/cxl/pci.c
> +++ b/drivers/cxl/pci.c
> @@ -698,35 +698,31 @@ static int cxl_event_config_msgnums(struct cxl_memdev_state *mds,
> return cxl_event_get_int_policy(mds, policy);
> }
>
> -static int cxl_event_irqsetup(struct cxl_memdev_state *mds)
> +static int cxl_event_irqsetup(struct cxl_memdev_state *mds,
> + struct cxl_event_interrupt_policy *policy)
> {
> struct cxl_dev_state *cxlds = &mds->cxlds;
> - struct cxl_event_interrupt_policy policy;
> int rc;
>
> - rc = cxl_event_config_msgnums(mds, &policy);
> - if (rc)
> - return rc;
> -
> - rc = cxl_event_req_irq(cxlds, policy.info_settings);
> + rc = cxl_event_req_irq(cxlds, policy->info_settings);
> if (rc) {
> dev_err(cxlds->dev, "Failed to get interrupt for event Info log\n");
> return rc;
> }
>
> - rc = cxl_event_req_irq(cxlds, policy.warn_settings);
> + rc = cxl_event_req_irq(cxlds, policy->warn_settings);
> if (rc) {
> dev_err(cxlds->dev, "Failed to get interrupt for event Warn log\n");
> return rc;
> }
>
> - rc = cxl_event_req_irq(cxlds, policy.failure_settings);
> + rc = cxl_event_req_irq(cxlds, policy->failure_settings);
> if (rc) {
> dev_err(cxlds->dev, "Failed to get interrupt for event Failure log\n");
> return rc;
> }
>
> - rc = cxl_event_req_irq(cxlds, policy.fatal_settings);
> + rc = cxl_event_req_irq(cxlds, policy->fatal_settings);
> if (rc) {
> dev_err(cxlds->dev, "Failed to get interrupt for event Fatal log\n");
> return rc;
> @@ -745,7 +741,7 @@ static bool cxl_event_int_is_fw(u8 setting)
> static int cxl_event_config(struct pci_host_bridge *host_bridge,
> struct cxl_memdev_state *mds, bool irq_avail)
> {
> - struct cxl_event_interrupt_policy policy;
> + struct cxl_event_interrupt_policy policy = { 0 };
> int rc;
>
> /*
> @@ -777,7 +773,11 @@ static int cxl_event_config(struct pci_host_bridge *host_bridge,
> return -EBUSY;
> }
>
> - rc = cxl_event_irqsetup(mds);
> + rc = cxl_event_config_msgnums(mds, &policy);
> + if (rc)
> + return rc;
> +
> + rc = cxl_event_irqsetup(mds, &policy);
> if (rc)
> return rc;
>
>
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