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From: Alex Williamson <alex.williamson@redhat.com>
To: linux-pci@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org
Subject: [PATCH 1/2] PCI: Export pcie_has_flr()
Date: Mon, 23 Jul 2018 16:24:22 -0600	[thread overview]
Message-ID: <20180723222422.4371.68674.stgit@gimli.home> (raw)
In-Reply-To: <20180723221533.4371.90064.stgit@gimli.home>

pcie_flr() suggests pcie_has_flr() to ensure that PCIe FLR support is
present prior to calling.  pcie_flr() is exported while pcie_has_flr()
is not.  Resolve this.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
---
 drivers/pci/pci.c   |    3 ++-
 include/linux/pci.h |    1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 2bec76c9d9a7..52fe2d72a99c 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -4071,7 +4071,7 @@ static int pci_dev_wait(struct pci_dev *dev, char *reset_type, int timeout)
  * Returns true if the device advertises support for PCIe function level
  * resets.
  */
-static bool pcie_has_flr(struct pci_dev *dev)
+bool pcie_has_flr(struct pci_dev *dev)
 {
 	u32 cap;
 
@@ -4081,6 +4081,7 @@ static bool pcie_has_flr(struct pci_dev *dev)
 	pcie_capability_read_dword(dev, PCI_EXP_DEVCAP, &cap);
 	return cap & PCI_EXP_DEVCAP_FLR;
 }
+EXPORT_SYMBOL_GPL(pcie_has_flr);
 
 /**
  * pcie_flr - initiate a PCIe function level reset
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 04c7ea6ed67b..bbe030d7814f 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1092,6 +1092,7 @@ u32 pcie_bandwidth_available(struct pci_dev *dev, struct pci_dev **limiting_dev,
 			     enum pci_bus_speed *speed,
 			     enum pcie_link_width *width);
 void pcie_print_link_status(struct pci_dev *dev);
+bool pcie_has_flr(struct pci_dev *dev);
 int pcie_flr(struct pci_dev *dev);
 int __pci_reset_function_locked(struct pci_dev *dev);
 int pci_reset_function(struct pci_dev *dev);


WARNING: multiple messages have this Message-ID (diff)
From: Alex Williamson <alex.williamson@redhat.com>
To: linux-pci@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org
Subject: [PATCH 1/2] PCI: Export pcie_has_flr()
Date: Mon, 23 Jul 2018 16:24:22 -0600	[thread overview]
Message-ID: <20180723222422.4371.68674.stgit@gimli.home> (raw)
In-Reply-To: <20180723221533.4371.90064.stgit@gimli.home>

pcie_flr() suggests pcie_has_flr() to ensure that PCIe FLR support is
present prior to calling.  pcie_flr() is exported while pcie_has_flr()
is not.  Resolve this.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
---
 drivers/pci/pci.c   |    3 ++-
 include/linux/pci.h |    1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 2bec76c9d9a7..52fe2d72a99c 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -4071,7 +4071,7 @@ static int pci_dev_wait(struct pci_dev *dev, char *reset_type, int timeout)
  * Returns true if the device advertises support for PCIe function level
  * resets.
  */
-static bool pcie_has_flr(struct pci_dev *dev)
+bool pcie_has_flr(struct pci_dev *dev)
 {
 	u32 cap;
 
@@ -4081,6 +4081,7 @@ static bool pcie_has_flr(struct pci_dev *dev)
 	pcie_capability_read_dword(dev, PCI_EXP_DEVCAP, &cap);
 	return cap & PCI_EXP_DEVCAP_FLR;
 }
+EXPORT_SYMBOL_GPL(pcie_has_flr);
 
 /**
  * pcie_flr - initiate a PCIe function level reset
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 04c7ea6ed67b..bbe030d7814f 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1092,6 +1092,7 @@ u32 pcie_bandwidth_available(struct pci_dev *dev, struct pci_dev **limiting_dev,
 			     enum pci_bus_speed *speed,
 			     enum pcie_link_width *width);
 void pcie_print_link_status(struct pci_dev *dev);
+bool pcie_has_flr(struct pci_dev *dev);
 int pcie_flr(struct pci_dev *dev);
 int __pci_reset_function_locked(struct pci_dev *dev);
 int pci_reset_function(struct pci_dev *dev);


_______________________________________________
Linux-nvme mailing list
Linux-nvme@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-nvme

WARNING: multiple messages have this Message-ID (diff)
From: alex.williamson@redhat.com (Alex Williamson)
Subject: [PATCH 1/2] PCI: Export pcie_has_flr()
Date: Mon, 23 Jul 2018 16:24:22 -0600	[thread overview]
Message-ID: <20180723222422.4371.68674.stgit@gimli.home> (raw)
In-Reply-To: <20180723221533.4371.90064.stgit@gimli.home>

pcie_flr() suggests pcie_has_flr() to ensure that PCIe FLR support is
present prior to calling.  pcie_flr() is exported while pcie_has_flr()
is not.  Resolve this.

Signed-off-by: Alex Williamson <alex.williamson at redhat.com>
---
 drivers/pci/pci.c   |    3 ++-
 include/linux/pci.h |    1 +
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c
index 2bec76c9d9a7..52fe2d72a99c 100644
--- a/drivers/pci/pci.c
+++ b/drivers/pci/pci.c
@@ -4071,7 +4071,7 @@ static int pci_dev_wait(struct pci_dev *dev, char *reset_type, int timeout)
  * Returns true if the device advertises support for PCIe function level
  * resets.
  */
-static bool pcie_has_flr(struct pci_dev *dev)
+bool pcie_has_flr(struct pci_dev *dev)
 {
 	u32 cap;
 
@@ -4081,6 +4081,7 @@ static bool pcie_has_flr(struct pci_dev *dev)
 	pcie_capability_read_dword(dev, PCI_EXP_DEVCAP, &cap);
 	return cap & PCI_EXP_DEVCAP_FLR;
 }
+EXPORT_SYMBOL_GPL(pcie_has_flr);
 
 /**
  * pcie_flr - initiate a PCIe function level reset
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 04c7ea6ed67b..bbe030d7814f 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1092,6 +1092,7 @@ u32 pcie_bandwidth_available(struct pci_dev *dev, struct pci_dev **limiting_dev,
 			     enum pci_bus_speed *speed,
 			     enum pcie_link_width *width);
 void pcie_print_link_status(struct pci_dev *dev);
+bool pcie_has_flr(struct pci_dev *dev);
 int pcie_flr(struct pci_dev *dev);
 int __pci_reset_function_locked(struct pci_dev *dev);
 int pci_reset_function(struct pci_dev *dev);

  reply	other threads:[~2018-07-23 22:24 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-07-23 22:24 [PATCH 0/2] PCI: NVMe reset quirk Alex Williamson
2018-07-23 22:24 ` Alex Williamson
2018-07-23 22:24 ` Alex Williamson [this message]
2018-07-23 22:24   ` [PATCH 1/2] PCI: Export pcie_has_flr() Alex Williamson
2018-07-23 22:24   ` Alex Williamson
2018-07-23 22:24 ` [PATCH 2/2] PCI: NVMe device specific reset quirk Alex Williamson
2018-07-23 22:24   ` Alex Williamson
2018-07-23 22:24   ` Alex Williamson
2018-07-23 22:45   ` Keith Busch
2018-07-23 22:45     ` Keith Busch
2018-07-23 22:45     ` Keith Busch
2018-07-23 23:08     ` Alex Williamson
2018-07-23 23:08       ` Alex Williamson
2018-07-23 23:08       ` Alex Williamson
2018-07-23 22:45   ` Bjorn Helgaas
2018-07-23 22:45     ` Bjorn Helgaas
2018-07-23 22:45     ` Bjorn Helgaas
2018-07-24  0:11     ` Alex Williamson
2018-07-24  0:11       ` Alex Williamson

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