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LinuxKPI: implement pcie_capability_set_word()

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Implement pcie_capability_set_word() using the already available
read/write functions.
Also define the completion timeout disable value to our PCI one.
Both needed by a driver update.

Sponsored by:	The FreeBSD Foundation
MFC after:	3 days
Reviewed by:	manu, hselasky
Differential Revision: https://reviews.freebsd.org/D35250
This commit is contained in:
Bjoern A. Zeeb 2022-05-18 22:36:31 +00:00
parent 87c5ff0648
commit 85eb99f9a4
1 changed files with 17 additions and 0 deletions
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17
sys/compat/linuxkpi/common/include/linux/pci.h
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@ -129,6 +129,7 @@ MODULE_PNP_INFO("U32:vendor;U32:device;V32:subvendor;V32:subdevice", \
#define PCI_EXP_DEVCAP2 PCIER_DEVICE_CAP2 /* Device Capabilities 2 */
#define PCI_EXP_DEVCTL2 PCIER_DEVICE_CTL2 /* Device Control 2 */
#define PCI_EXP_DEVCTL2_LTR_EN PCIEM_CTL2_LTR_ENABLE
#define PCI_EXP_DEVCTL2_COMP_TMOUT_DIS PCIEM_CTL2_COMP_TIMO_DISABLE
#define PCI_EXP_LNKCAP2 PCIER_LINK_CAP2 /* Link Capabilities 2 */
#define PCI_EXP_LNKCTL2 PCIER_LINK_CTL2 /* Link Control 2 */
#define PCI_EXP_LNKSTA2 PCIER_LINK_STA2 /* Link Status 2 */
@ -1141,6 +1142,22 @@ pcie_capability_write_word(struct pci_dev *dev, int pos, u16 val)
return pci_write_config_word(dev, pci_pcie_cap(dev) + pos, val);
}
static inline int
pcie_capability_set_word(struct pci_dev *dev, int pos, uint16_t val)
{
int error;
uint16_t v;
error = pcie_capability_read_word(dev, pos, &v);
if (error != 0)
return (error);
v |= val;
error = pcie_capability_write_word(dev, pos, v);
return (error);
}
static inline int pcie_get_minimum_link(struct pci_dev *dev,
enum pci_bus_speed *speed, enum pcie_link_width *width)
{