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Message-ID: <20240822134744.44919-9-pstanner@redhat.com>
Date: Thu, 22 Aug 2024 15:47:40 +0200
From: Philipp Stanner <pstanner@...hat.com>
To: Jonathan Corbet <corbet@....net>,
Jens Axboe <axboe@...nel.dk>,
Wu Hao <hao.wu@...el.com>,
Tom Rix <trix@...hat.com>,
Moritz Fischer <mdf@...nel.org>,
Xu Yilun <yilun.xu@...el.com>,
Andy Shevchenko <andy@...nel.org>,
Linus Walleij <linus.walleij@...aro.org>,
Bartosz Golaszewski <brgl@...ev.pl>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Alexandre Torgue <alexandre.torgue@...s.st.com>,
Jose Abreu <joabreu@...opsys.com>,
Maxime Coquelin <mcoquelin.stm32@...il.com>,
Bjorn Helgaas <bhelgaas@...gle.com>,
Alvaro Karsz <alvaro.karsz@...id-run.com>,
"Michael S. Tsirkin" <mst@...hat.com>,
Jason Wang <jasowang@...hat.com>,
Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
Eugenio Pérez <eperezma@...hat.com>,
Richard Cochran <richardcochran@...il.com>,
Mark Brown <broonie@...nel.org>,
David Lechner <dlechner@...libre.com>,
Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
Philipp Stanner <pstanner@...hat.com>,
Damien Le Moal <dlemoal@...nel.org>,
Hannes Reinecke <hare@...e.de>,
Chaitanya Kulkarni <kch@...dia.com>
Cc: linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-block@...r.kernel.org,
linux-fpga@...r.kernel.org,
linux-gpio@...r.kernel.org,
netdev@...r.kernel.org,
linux-stm32@...md-mailman.stormreply.com,
linux-arm-kernel@...ts.infradead.org,
linux-pci@...r.kernel.org,
virtualization@...ts.linux.dev
Subject: [PATCH v3 8/9] vdap: solidrun: Replace deprecated PCI functions
solidrun utilizes pcim_iomap_regions(), which has been deprecated by the
PCI subsystem in commit e354bb84a4c1 ("PCI: Deprecate
pcim_iomap_table(), pcim_iomap_regions_request_all()"), among other
things because it forces usage of quite a complicated bitmask mechanism.
The bitmask handling code can entirely be removed by replacing
pcim_iomap_regions() and pcim_iomap_table().
Replace pcim_iomap_regions() and pcim_iomap_table() with
pcim_iomap_region().
Signed-off-by: Philipp Stanner <pstanner@...hat.com>
---
drivers/vdpa/solidrun/snet_main.c | 52 +++++++++++--------------------
1 file changed, 18 insertions(+), 34 deletions(-)
diff --git a/drivers/vdpa/solidrun/snet_main.c b/drivers/vdpa/solidrun/snet_main.c
index 67235f6190ef..fb15e844847d 100644
--- a/drivers/vdpa/solidrun/snet_main.c
+++ b/drivers/vdpa/solidrun/snet_main.c
@@ -556,36 +556,25 @@ static const struct vdpa_config_ops snet_config_ops = {
static int psnet_open_pf_bar(struct pci_dev *pdev, struct psnet *psnet)
{
char *name;
- int ret, i, mask = 0;
- /* We don't know which BAR will be used to communicate..
- * We will map every bar with len > 0.
- *
- * Later, we will discover the BAR and unmap all other BARs.
- */
- for (i = 0; i < PCI_STD_NUM_BARS; i++) {
- if (pci_resource_len(pdev, i))
- mask |= (1 << i);
- }
-
- /* No BAR can be used.. */
- if (!mask) {
- SNET_ERR(pdev, "Failed to find a PCI BAR\n");
- return -ENODEV;
- }
+ unsigned short i;
name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "psnet[%s]-bars", pci_name(pdev));
if (!name)
return -ENOMEM;
- ret = pcim_iomap_regions(pdev, mask, name);
- if (ret) {
- SNET_ERR(pdev, "Failed to request and map PCI BARs\n");
- return ret;
- }
-
+ /* We don't know which BAR will be used to communicate..
+ * We will map every bar with len > 0.
+ *
+ * Later, we will discover the BAR and unmap all other BARs.
+ */
for (i = 0; i < PCI_STD_NUM_BARS; i++) {
- if (mask & (1 << i))
- psnet->bars[i] = pcim_iomap_table(pdev)[i];
+ if (!pci_resource_len(pdev, i))
+ continue;
+ psnet->bars[i] = pcim_iomap_region(pdev, i, name);
+ if (IS_ERR(psnet->bars[i])) {
+ SNET_ERR(pdev, "Failed to request and map PCI BARs\n");
+ return PTR_ERR(psnet->bars[i]);
+ }
}
return 0;
@@ -600,14 +589,12 @@ static int snet_open_vf_bar(struct pci_dev *pdev, struct snet *snet)
if (!name)
return -ENOMEM;
/* Request and map BAR */
- ret = pcim_iomap_regions(pdev, BIT(snet->psnet->cfg.vf_bar), name);
- if (ret) {
+ snet->bar = pcim_iomap_region(pdev, snet->psnet->cfg.vf_bar, name);
+ if (IS_ERR(snet->bar)) {
SNET_ERR(pdev, "Failed to request and map PCI BAR for a VF\n");
- return ret;
+ return PTR_ERR(snet->bar);
}
- snet->bar = pcim_iomap_table(pdev)[snet->psnet->cfg.vf_bar];
-
return 0;
}
@@ -655,15 +642,12 @@ static int psnet_detect_bar(struct psnet *psnet, u32 off)
static void psnet_unmap_unused_bars(struct pci_dev *pdev, struct psnet *psnet)
{
- int i, mask = 0;
+ unsigned short i;
for (i = 0; i < PCI_STD_NUM_BARS; i++) {
if (psnet->bars[i] && i != psnet->barno)
- mask |= (1 << i);
+ pcim_iounmap_region(pdev, i);
}
-
- if (mask)
- pcim_iounmap_regions(pdev, mask);
}
/* Read SNET config from PCI BAR */
--
2.46.0
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