[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <alpine.DEB.2.21.2302051429120.33812@angie.orcam.me.uk>
Date: Sun, 5 Feb 2023 15:48:59 +0000 (GMT)
From: "Maciej W. Rozycki" <macro@...am.me.uk>
To: Bjorn Helgaas <bhelgaas@...gle.com>,
Mahesh J Salgaonkar <mahesh@...ux.ibm.com>,
Oliver O'Halloran <oohall@...il.com>,
Michael Ellerman <mpe@...erman.id.au>,
Nicholas Piggin <npiggin@...il.com>,
Christophe Leroy <christophe.leroy@...roup.eu>,
Saeed Mahameed <saeedm@...dia.com>,
Leon Romanovsky <leon@...nel.org>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>
cc: Alex Williamson <alex.williamson@...hat.com>,
Lukas Wunner <lukas@...ner.de>,
Mika Westerberg <mika.westerberg@...ux.intel.com>,
Stefan Roese <sr@...x.de>, Jim Wilson <wilson@...iptree.org>,
David Abdurachmanov <david.abdurachmanov@...il.com>,
Pali Rohár <pali@...nel.org>,
linux-pci@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
linux-rdma@...r.kernel.org, netdev@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v6 1/7] PCI: Export PCI link retrain timeout
Rename LINK_RETRAIN_TIMEOUT to PCIE_LINK_RETRAIN_TIMEOUT and make it
available via "pci.h" for PCI drivers to use.
Signed-off-by: Maciej W. Rozycki <macro@...am.me.uk>
---
No change from v5.
New change in v5.
---
drivers/pci/pci.h | 2 ++
drivers/pci/pcie/aspm.c | 4 +---
2 files changed, 3 insertions(+), 3 deletions(-)
linux-pcie-link-retrain-timeout.diff
Index: linux-macro/drivers/pci/pci.h
===================================================================
--- linux-macro.orig/drivers/pci/pci.h
+++ linux-macro/drivers/pci/pci.h
@@ -11,6 +11,8 @@
#define PCI_VSEC_ID_INTEL_TBT 0x1234 /* Thunderbolt */
+#define PCIE_LINK_RETRAIN_TIMEOUT HZ
+
extern const unsigned char pcie_link_speed[];
extern bool pci_early_dump;
Index: linux-macro/drivers/pci/pcie/aspm.c
===================================================================
--- linux-macro.orig/drivers/pci/pcie/aspm.c
+++ linux-macro/drivers/pci/pcie/aspm.c
@@ -90,8 +90,6 @@ static const char *policy_str[] = {
[POLICY_POWER_SUPERSAVE] = "powersupersave"
};
-#define LINK_RETRAIN_TIMEOUT HZ
-
/*
* The L1 PM substate capability is only implemented in function 0 in a
* multi function device.
@@ -213,7 +211,7 @@ static bool pcie_retrain_link(struct pci
}
/* Wait for link training end. Break out after waiting for timeout */
- end_jiffies = jiffies + LINK_RETRAIN_TIMEOUT;
+ end_jiffies = jiffies + PCIE_LINK_RETRAIN_TIMEOUT;
do {
pcie_capability_read_word(parent, PCI_EXP_LNKSTA, ®16);
if (!(reg16 & PCI_EXP_LNKSTA_LT))
Powered by blists - more mailing lists