summaryrefslogtreecommitdiffstats
path: root/drivers/thunderbolt/nhi.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/thunderbolt/nhi.c')
-rw-r--r--drivers/thunderbolt/nhi.c28
1 files changed, 10 insertions, 18 deletions
diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
index b22023fae6..7af2642b97 100644
--- a/drivers/thunderbolt/nhi.c
+++ b/drivers/thunderbolt/nhi.c
@@ -48,7 +48,7 @@
static bool host_reset = true;
module_param(host_reset, bool, 0444);
-MODULE_PARM_DESC(host_reset, "reset USBv2 host router (default: true)");
+MODULE_PARM_DESC(host_reset, "reset USB4 host router (default: true)");
static int ring_interrupt_index(const struct tb_ring *ring)
{
@@ -465,7 +465,7 @@ static int ring_request_msix(struct tb_ring *ring, bool no_suspend)
if (!nhi->pdev->msix_enabled)
return 0;
- ret = ida_simple_get(&nhi->msix_ida, 0, MSIX_MAX_VECS, GFP_KERNEL);
+ ret = ida_alloc_max(&nhi->msix_ida, MSIX_MAX_VECS - 1, GFP_KERNEL);
if (ret < 0)
return ret;
@@ -485,7 +485,7 @@ static int ring_request_msix(struct tb_ring *ring, bool no_suspend)
return 0;
err_ida_remove:
- ida_simple_remove(&nhi->msix_ida, ring->vector);
+ ida_free(&nhi->msix_ida, ring->vector);
return ret;
}
@@ -496,7 +496,7 @@ static void ring_release_msix(struct tb_ring *ring)
return;
free_irq(ring->irq, ring);
- ida_simple_remove(&ring->nhi->msix_ida, ring->vector);
+ ida_free(&ring->nhi->msix_ida, ring->vector);
ring->vector = 0;
ring->irq = 0;
}
@@ -1221,7 +1221,7 @@ static void nhi_check_iommu(struct tb_nhi *nhi)
str_enabled_disabled(port_ok));
}
-static bool nhi_reset(struct tb_nhi *nhi)
+static void nhi_reset(struct tb_nhi *nhi)
{
ktime_t timeout;
u32 val;
@@ -1229,11 +1229,11 @@ static bool nhi_reset(struct tb_nhi *nhi)
val = ioread32(nhi->iobase + REG_CAPS);
/* Reset only v2 and later routers */
if (FIELD_GET(REG_CAPS_VERSION_MASK, val) < REG_CAPS_VERSION_2)
- return false;
+ return;
if (!host_reset) {
dev_dbg(&nhi->pdev->dev, "skipping host router reset\n");
- return false;
+ return;
}
iowrite32(REG_RESET_HRR, nhi->iobase + REG_RESET);
@@ -1244,14 +1244,12 @@ static bool nhi_reset(struct tb_nhi *nhi)
val = ioread32(nhi->iobase + REG_RESET);
if (!(val & REG_RESET_HRR)) {
dev_warn(&nhi->pdev->dev, "host router reset successful\n");
- return true;
+ return;
}
usleep_range(10, 20);
} while (ktime_before(ktime_get(), timeout));
dev_warn(&nhi->pdev->dev, "timeout resetting host router\n");
-
- return false;
}
static int nhi_init_msi(struct tb_nhi *nhi)
@@ -1333,7 +1331,6 @@ static int nhi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
struct device *dev = &pdev->dev;
struct tb_nhi *nhi;
struct tb *tb;
- bool reset;
int res;
if (!nhi_imr_valid(pdev))
@@ -1367,12 +1364,7 @@ static int nhi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
nhi_check_quirks(nhi);
nhi_check_iommu(nhi);
-
- /*
- * Only USB4 v2 hosts support host reset so if we already did
- * that then don't do it again when the domain is initialized.
- */
- reset = nhi_reset(nhi) ? false : host_reset;
+ nhi_reset(nhi);
res = nhi_init_msi(nhi);
if (res)
@@ -1399,7 +1391,7 @@ static int nhi_probe(struct pci_dev *pdev, const struct pci_device_id *id)
dev_dbg(dev, "NHI initialized, starting thunderbolt\n");
- res = tb_domain_add(tb, reset);
+ res = tb_domain_add(tb, host_reset);
if (res) {
/*
* At this point the RX/TX rings might already have been