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From: Christoph Hellwig <hch@lst.de>
To: Tony Luck <tony.luck@intel.com>,
	Fenghua Yu <fenghua.yu@intel.com>,
	Mike Travis <mike.travis@hpe.com>,
	Dimitri Sivanich <sivanich@hpe.com>
Cc: Arnd Bergmann <arnd@arndb.de>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-ia64@vger.kernel.org, linux-ide@vger.kernel.org,
	linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH 23/28] ia64: rework iommu probing
Date: Tue, 13 Aug 2019 09:25:09 +0200
Message-ID: <20190813072514.23299-24-hch@lst.de> (raw)
In-Reply-To: <20190813072514.23299-1-hch@lst.de>

ia64 currently organizes the iommu probing along machves, which isn't
very helpful.  Instead just try to probe for Intel IOMMUs in mem_init
as they are properly described in ACPI and if none was found initialize
the swiotlb buffer.  The HP SBA handling is then only done delayed when
the actual hardware is probed. Only in the case that we actually found
usable IOMMUs we then set up the DMA ops and free the not needed
swiotlb buffer.  This scheme gets rid of the need for the dma_init
machvec operation, and the dig_vtd machvec.

Signed-off-by: Christoph Hellwig <hch@lst.de>
---
 arch/ia64/Kconfig                       |  5 --
 arch/ia64/Makefile                      |  1 -
 arch/ia64/dig/Makefile                  |  5 --
 arch/ia64/dig/machvec_vtd.c             |  3 -
 arch/ia64/hp/common/sba_iommu.c         | 82 +++++++++----------------
 arch/ia64/include/asm/acpi.h            |  2 -
 arch/ia64/include/asm/machvec.h         | 11 ----
 arch/ia64/include/asm/machvec_dig_vtd.h | 19 ------
 arch/ia64/include/asm/machvec_hpzx1.h   |  2 -
 arch/ia64/include/asm/pci.h             |  3 -
 arch/ia64/kernel/acpi.c                 | 15 -----
 arch/ia64/kernel/dma-mapping.c          |  6 --
 arch/ia64/kernel/pci-dma.c              | 21 -------
 arch/ia64/mm/init.c                     | 16 +++--
 14 files changed, 40 insertions(+), 151 deletions(-)
 delete mode 100644 arch/ia64/dig/machvec_vtd.c
 delete mode 100644 arch/ia64/include/asm/machvec_dig_vtd.h

diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index a42ab41ee8ab..9a8c7ec60cfc 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -146,11 +146,6 @@ config IA64_DIG
 	bool "DIG-compliant"
 	select SWIOTLB
 
-config IA64_DIG_VTD
-	bool "DIG+Intel+IOMMU"
-	select INTEL_IOMMU
-	select PCI_MSI
-
 config IA64_HP_ZX1
 	bool "HP-zx1/sx1000"
 	help
diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
index 0b3647efde5d..22deb5e6f346 100644
--- a/arch/ia64/Makefile
+++ b/arch/ia64/Makefile
@@ -51,7 +51,6 @@ head-y := arch/ia64/kernel/head.o
 libs-y				+= arch/ia64/lib/
 core-y				+= arch/ia64/kernel/ arch/ia64/mm/
 core-$(CONFIG_IA64_DIG) 	+= arch/ia64/dig/
-core-$(CONFIG_IA64_DIG_VTD) 	+= arch/ia64/dig/
 core-$(CONFIG_IA64_GENERIC) 	+= arch/ia64/dig/
 core-$(CONFIG_IA64_HP_ZX1)	+= arch/ia64/dig/
 core-$(CONFIG_IA64_SGI_UV)	+= arch/ia64/uv/
diff --git a/arch/ia64/dig/Makefile b/arch/ia64/dig/Makefile
index e7f830825470..5c2f638c31f4 100644
--- a/arch/ia64/dig/Makefile
+++ b/arch/ia64/dig/Makefile
@@ -7,9 +7,4 @@
 #
 
 obj-y := setup.o
-ifeq ($(CONFIG_INTEL_IOMMU), y)
-obj-$(CONFIG_IA64_GENERIC) += machvec.o machvec_vtd.o
-else
 obj-$(CONFIG_IA64_GENERIC) += machvec.o
-endif
-
diff --git a/arch/ia64/dig/machvec_vtd.c b/arch/ia64/dig/machvec_vtd.c
deleted file mode 100644
index 7cd3eb471cad..000000000000
--- a/arch/ia64/dig/machvec_vtd.c
+++ /dev/null
@@ -1,3 +0,0 @@
-#define MACHVEC_PLATFORM_NAME		dig_vtd
-#define MACHVEC_PLATFORM_HEADER		<asm/machvec_dig_vtd.h>
-#include <asm/machvec_init.h>
diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
index 215fa688b729..a7eff5e6d260 100644
--- a/arch/ia64/hp/common/sba_iommu.c
+++ b/arch/ia64/hp/common/sba_iommu.c
@@ -35,6 +35,7 @@
 #include <linux/iommu-helper.h>
 #include <linux/dma-mapping.h>
 #include <linux/prefetch.h>
+#include <linux/swiotlb.h>
 
 #include <asm/delay.h>		/* ia64_get_itc() */
 #include <asm/io.h>
@@ -43,8 +44,6 @@
 
 #include <asm/acpi-ext.h>
 
-extern int swiotlb_late_init_with_default_size (size_t size);
-
 #define PFX "IOC: "
 
 /*
@@ -2056,27 +2055,33 @@ static int __init acpi_sba_ioc_init_acpi(void)
 /* This has to run before acpi_scan_init(). */
 arch_initcall(acpi_sba_ioc_init_acpi);
 
+static int sba_dma_supported (struct device *dev, u64 mask)
+{
+	/* make sure it's at least 32bit capable */
+	return ((mask & 0xFFFFFFFFUL) == 0xFFFFFFFFUL);
+}
+
+static const struct dma_map_ops sba_dma_ops = {
+	.alloc			= sba_alloc_coherent,
+	.free			= sba_free_coherent,
+	.map_page		= sba_map_page,
+	.unmap_page		= sba_unmap_page,
+	.map_sg			= sba_map_sg_attrs,
+	.unmap_sg		= sba_unmap_sg_attrs,
+	.dma_supported		= sba_dma_supported,
+};
+
 static int __init
 sba_init(void)
 {
-	if (!ia64_platform_is("hpzx1"))
-		return 0;
-
-#if defined(CONFIG_IA64_GENERIC)
-	/* If we are booting a kdump kernel, the sba_iommu will
-	 * cause devices that were not shutdown properly to MCA
-	 * as soon as they are turned back on.  Our only option for
-	 * a successful kdump kernel boot is to use the swiotlb.
+	/*
+	 * If we are booting a kdump kernel, the sba_iommu will cause devices
+	 * that were not shutdown properly to MCA as soon as they are turned
+	 * back on.  Our only option for a successful kdump kernel boot is to
+	 * use swiotlb.
 	 */
-	if (is_kdump_kernel()) {
-		dma_ops = NULL;
-		if (swiotlb_late_init_with_default_size(64 * (1<<20)) != 0)
-			panic("Unable to initialize software I/O TLB:"
-				  " Try machvec=dig boot option");
-		machvec_init("dig");
+	if (is_kdump_kernel())
 		return 0;
-	}
-#endif
 
 	/*
 	 * ioc_found should be populated by the acpi_sba_ioc_handler's .attach()
@@ -2085,22 +2090,8 @@ sba_init(void)
 	while (ioc_found)
 		acpi_sba_ioc_add(ioc_found);
 
-	if (!ioc_list) {
-#ifdef CONFIG_IA64_GENERIC
-		/*
-		 * If we didn't find something sba_iommu can claim, we
-		 * need to setup the swiotlb and switch to the dig machvec.
-		 */
-		dma_ops = NULL;
-		if (swiotlb_late_init_with_default_size(64 * (1<<20)) != 0)
-			panic("Unable to find SBA IOMMU or initialize "
-			      "software I/O TLB: Try machvec=dig boot option");
-		machvec_init("dig");
-#else
-		panic("Unable to find SBA IOMMU: Try a generic or DIG kernel");
-#endif
+	if (!ioc_list)
 		return 0;
-	}
 
 	{
 		struct pci_bus *b = NULL;
@@ -2108,6 +2099,10 @@ sba_init(void)
 			sba_connect_bus(b);
 	}
 
+	/* no need for swiotlb with the iommu */
+	swiotlb_exit();
+	dma_ops = &sba_dma_ops;
+
 #ifdef CONFIG_PROC_FS
 	ioc_proc_init();
 #endif
@@ -2123,12 +2118,6 @@ nosbagart(char *str)
 	return 1;
 }
 
-static int sba_dma_supported (struct device *dev, u64 mask)
-{
-	/* make sure it's at least 32bit capable */
-	return ((mask & 0xFFFFFFFFUL) == 0xFFFFFFFFUL);
-}
-
 __setup("nosbagart", nosbagart);
 
 static int __init
@@ -2153,18 +2142,3 @@ sba_page_override(char *str)
 }
 
 __setup("sbapagesize=",sba_page_override);
-
-const struct dma_map_ops sba_dma_ops = {
-	.alloc			= sba_alloc_coherent,
-	.free			= sba_free_coherent,
-	.map_page		= sba_map_page,
-	.unmap_page		= sba_unmap_page,
-	.map_sg			= sba_map_sg_attrs,
-	.unmap_sg		= sba_unmap_sg_attrs,
-	.dma_supported		= sba_dma_supported,
-};
-
-void sba_dma_init(void)
-{
-	dma_ops = &sba_dma_ops;
-}
diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
index 9e563df73038..be6bf3e499a6 100644
--- a/arch/ia64/include/asm/acpi.h
+++ b/arch/ia64/include/asm/acpi.h
@@ -43,8 +43,6 @@ static inline const char *acpi_get_sysname (void)
 	return "uv";
 # elif defined (CONFIG_IA64_DIG)
 	return "dig";
-# elif defined(CONFIG_IA64_DIG_VTD)
-	return "dig_vtd";
 # else
 #	error Unknown platform.  Fix acpi.c.
 # endif
diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h
index fa867e980d87..b22d0499b58c 100644
--- a/arch/ia64/include/asm/machvec.h
+++ b/arch/ia64/include/asm/machvec.h
@@ -16,14 +16,11 @@
 struct device;
 
 typedef void ia64_mv_setup_t (char **);
-typedef void ia64_mv_dma_init (void);
 
 extern void machvec_setup (char **);
 
 # if defined (CONFIG_IA64_DIG)
 #  include <asm/machvec_dig.h>
-# elif defined(CONFIG_IA64_DIG_VTD)
-#  include <asm/machvec_dig_vtd.h>
 # elif defined (CONFIG_IA64_HP_ZX1)
 #  include <asm/machvec_hpzx1.h>
 # elif defined (CONFIG_IA64_SGI_UV)
@@ -35,7 +32,6 @@ extern void machvec_setup (char **);
 # else
 #  define ia64_platform_name	ia64_mv.name
 #  define platform_setup	ia64_mv.setup
-#  define platform_dma_init		ia64_mv.dma_init
 # endif
 
 /* __attribute__((__aligned__(16))) is required to make size of the
@@ -46,14 +42,12 @@ extern void machvec_setup (char **);
 struct ia64_machine_vector {
 	const char *name;
 	ia64_mv_setup_t *setup;
-	ia64_mv_dma_init *dma_init;
 } __attribute__((__aligned__(16))); /* align attrib? see above comment */
 
 #define MACHVEC_INIT(name)			\
 {						\
 	#name,					\
 	platform_setup,				\
-	platform_dma_init,			\
 }
 
 extern struct ia64_machine_vector ia64_mv;
@@ -64,8 +58,6 @@ extern void machvec_init_from_cmdline(const char *cmdline);
 #  error Unknown configuration.  Update arch/ia64/include/asm/machvec.h.
 # endif /* CONFIG_IA64_GENERIC */
 
-extern void swiotlb_dma_init(void);
-
 /*
  * Define default versions so we can extend machvec for new platforms without having
  * to update the machvec files for all existing platforms.
@@ -73,8 +65,5 @@ extern void swiotlb_dma_init(void);
 #ifndef platform_setup
 # define platform_setup			machvec_setup
 #endif
-#ifndef platform_dma_init
-# define platform_dma_init		swiotlb_dma_init
-#endif
 
 #endif /* _ASM_IA64_MACHVEC_H */
diff --git a/arch/ia64/include/asm/machvec_dig_vtd.h b/arch/ia64/include/asm/machvec_dig_vtd.h
deleted file mode 100644
index bb44eb9039dd..000000000000
--- a/arch/ia64/include/asm/machvec_dig_vtd.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_IA64_MACHVEC_DIG_VTD_h
-#define _ASM_IA64_MACHVEC_DIG_VTD_h
-
-extern ia64_mv_setup_t			dig_setup;
-extern ia64_mv_dma_init			pci_iommu_alloc;
-
-/*
- * This stuff has dual use!
- *
- * For a generic kernel, the macros are used to initialize the
- * platform's machvec structure.  When compiling a non-generic kernel,
- * the macros are used directly.
- */
-#define ia64_platform_name			"dig_vtd"
-#define platform_setup				dig_setup
-#define platform_dma_init			pci_iommu_alloc
-
-#endif /* _ASM_IA64_MACHVEC_DIG_VTD_h */
diff --git a/arch/ia64/include/asm/machvec_hpzx1.h b/arch/ia64/include/asm/machvec_hpzx1.h
index 5299ac38bfb6..7d37998ffdbf 100644
--- a/arch/ia64/include/asm/machvec_hpzx1.h
+++ b/arch/ia64/include/asm/machvec_hpzx1.h
@@ -3,7 +3,6 @@
 #define _ASM_IA64_MACHVEC_HPZX1_h
 
 extern ia64_mv_setup_t			dig_setup;
-extern ia64_mv_dma_init			sba_dma_init;
 
 /*
  * This stuff has dual use!
@@ -14,6 +13,5 @@ extern ia64_mv_dma_init			sba_dma_init;
  */
 #define ia64_platform_name			"hpzx1"
 #define platform_setup				dig_setup
-#define platform_dma_init			sba_dma_init
 
 #endif /* _ASM_IA64_MACHVEC_HPZX1_h */
diff --git a/arch/ia64/include/asm/pci.h b/arch/ia64/include/asm/pci.h
index ef91b780a3f2..8c163d1d0189 100644
--- a/arch/ia64/include/asm/pci.h
+++ b/arch/ia64/include/asm/pci.h
@@ -69,7 +69,4 @@ static inline int pci_get_legacy_ide_irq(struct pci_dev *dev, int channel)
 	return channel ? isa_irq_to_vector(15) : isa_irq_to_vector(14);
 }
 
-#ifdef CONFIG_INTEL_IOMMU
-extern void pci_iommu_alloc(void);
-#endif
 #endif /* _ASM_IA64_PCI_H */
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index a63e472f5317..644f34e4342e 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -65,9 +65,6 @@ acpi_get_sysname(void)
 	struct acpi_table_rsdp *rsdp;
 	struct acpi_table_xsdt *xsdt;
 	struct acpi_table_header *hdr;
-#ifdef CONFIG_INTEL_IOMMU
-	u64 i, nentries;
-#endif
 
 	rsdp_phys = acpi_find_rsdp();
 	if (!rsdp_phys) {
@@ -98,18 +95,6 @@ acpi_get_sysname(void)
 			return "uv";
 	}
 
-#ifdef CONFIG_INTEL_IOMMU
-	/* Look for Intel IOMMU */
-	nentries = (hdr->length - sizeof(*hdr)) /
-			 sizeof(xsdt->table_offset_entry[0]);
-	for (i = 0; i < nentries; i++) {
-		hdr = __va(xsdt->table_offset_entry[i]);
-		if (strncmp(hdr->signature, ACPI_SIG_DMAR,
-			sizeof(ACPI_SIG_DMAR) - 1) == 0)
-			return "dig_vtd";
-	}
-#endif
-
 	return "dig";
 }
 #endif /* CONFIG_IA64_GENERIC */
diff --git a/arch/ia64/kernel/dma-mapping.c b/arch/ia64/kernel/dma-mapping.c
index 4be5ee04ccfa..53aaa8597920 100644
--- a/arch/ia64/kernel/dma-mapping.c
+++ b/arch/ia64/kernel/dma-mapping.c
@@ -1,6 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
 #include <linux/dma-direct.h>
-#include <linux/swiotlb.h>
 #include <linux/export.h>
 
 /* Set this to 1 if there is a HW IOMMU in the system */
@@ -27,9 +26,4 @@ long arch_dma_coherent_to_pfn(struct device *dev, void *cpu_addr,
 {
 	return page_to_pfn(virt_to_page(cpu_addr));
 }
-
-void __init swiotlb_dma_init(void)
-{
-	swiotlb_init(1);
-}
 #endif
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index fe988c49f01c..c5a8df9e77d0 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -34,24 +34,3 @@ static int __init pci_iommu_init(void)
 
 /* Must execute after PCI subsystem */
 fs_initcall(pci_iommu_init);
-
-void __init pci_iommu_alloc(void)
-{
-	/*
-	 * The order of these functions is important for
-	 * fall-back/fail-over reasons
-	 */
-	detect_intel_iommu();
-
-#ifdef CONFIG_SWIOTLB
-	if (!iommu_detected) {
-#ifdef CONFIG_IA64_GENERIC
-		printk(KERN_INFO "PCI-DMA: Re-initialize machine vector.\n");
-		machvec_init("dig");
-		swiotlb_dma_init();
-#else
-		panic("Unable to find Intel IOMMU");
-#endif /* CONFIG_IA64_GENERIC */
-	}
-#endif /* CONFIG_SWIOTLB */
-}
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
index 9a4a16439900..ed3ced65705e 100644
--- a/arch/ia64/mm/init.c
+++ b/arch/ia64/mm/init.c
@@ -9,6 +9,7 @@
 #include <linux/init.h>
 
 #include <linux/dma-noncoherent.h>
+#include <linux/dmar.h>
 #include <linux/efi.h>
 #include <linux/elf.h>
 #include <linux/memblock.h>
@@ -23,6 +24,7 @@
 #include <linux/proc_fs.h>
 #include <linux/bitops.h>
 #include <linux/kexec.h>
+#include <linux/swiotlb.h>
 
 #include <asm/dma.h>
 #include <asm/io.h>
@@ -633,11 +635,17 @@ mem_init (void)
 	BUG_ON(PTRS_PER_PTE * sizeof(pte_t) != PAGE_SIZE);
 
 	/*
-	 * This needs to be called _after_ the command line has been parsed but _before_
-	 * any drivers that may need the PCI DMA interface are initialized or bootmem has
-	 * been freed.
+	 * This needs to be called _after_ the command line has been parsed but
+	 * _before_ any drivers that may need the PCI DMA interface are
+	 * initialized or bootmem has been freed.
 	 */
-	platform_dma_init();
+#ifdef CONFIG_INTEL_IOMMU
+	detect_intel_iommu();
+	if (!iommu_detected)
+#endif
+#ifdef CONFIG_SWIOTLB
+		swiotlb_init(1);
+#endif
 
 #ifdef CONFIG_FLATMEM
 	BUG_ON(!mem_map);
-- 
2.20.1


  parent reply index

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-13  7:24 RFC: remove sn2, hpsim and ia64 machvecs v2 Christoph Hellwig
2019-08-13  7:24 ` [PATCH 01/28] char: remove the SGI snsc driver Christoph Hellwig
2019-08-13  7:24 ` [PATCH 02/28] char: remove the SGI tiocx/mbcs driver Christoph Hellwig
2019-08-13  7:24 ` [PATCH 03/28] char/agp: remove the sgi-agp driver Christoph Hellwig
2019-08-13  7:24 ` [PATCH 04/28] ide: remove the sgiioc4 driver Christoph Hellwig
2019-08-13  7:24 ` [PATCH 05/28] PCI/hotplug: remove the sgi_hotplug driver Christoph Hellwig
2019-08-13  7:24 ` [PATCH 06/28] tty/serial: remove the sn_console driver Christoph Hellwig
2019-08-13  7:24 ` [PATCH 07/28] tty/serial: remove the ioc4_serial driver Christoph Hellwig
2019-08-13  7:24 ` [PATCH 08/28] tty/serial: remove the ioc3_serial driver Christoph Hellwig
2019-08-13  7:24 ` [PATCH 09/28] char/mspec: remove SGI SN2 support Christoph Hellwig
2019-08-13  7:24 ` [PATCH 10/28] misc/sgi-xp: " Christoph Hellwig
2019-08-13  7:24 ` [PATCH 11/28] qla1280: " Christoph Hellwig
2019-08-13  7:24 ` [PATCH 12/28] qla2xxx: " Christoph Hellwig
2019-08-13  7:24 ` [PATCH 13/28] drivers: remove the SGI SN2 IOC3 base support Christoph Hellwig
2019-08-13  7:25 ` [PATCH 14/28] drivers: remove the SGI SN2 IOC4 " Christoph Hellwig
2019-08-13  7:25 ` [PATCH 16/28] ia64: remove now unused machvec indirections Christoph Hellwig
2019-08-13  7:25 ` [PATCH 17/28] ia64: remove the hpsim platform Christoph Hellwig
2019-08-13 21:06   ` Vaden, Tom (HPE Server OS Architecture)
2019-08-13  7:25 ` [PATCH 18/28] ia64: remove CONFIG_PCI ifdefs Christoph Hellwig
2019-08-13 21:07   ` Vaden, Tom (HPE Server OS Architecture)
2019-08-13  7:25 ` [PATCH 19/28] ia64: remove CONFIG_ACPI ifdefs Christoph Hellwig
2019-08-13 21:07   ` Vaden, Tom (HPE Server OS Architecture)
2019-08-13  7:25 ` [PATCH 20/28] ia64: remove the zx1 swiotlb machvec Christoph Hellwig
2019-08-13  7:25 ` [PATCH 21/28] ia64: remove the SGI UV simulator support Christoph Hellwig
2019-08-13  7:25 ` [PATCH 22/28] ia64: remove the unused sn_coherency_id symbol Christoph Hellwig
2019-08-13  7:25 ` Christoph Hellwig [this message]
2019-08-13  7:25 ` [PATCH 24/28] ia64: move the ROOT_DEV setup to common code Christoph Hellwig
2019-08-13  7:25 ` [PATCH 25/28] ia64: move the screen_info " Christoph Hellwig
2019-08-13  7:25 ` [PATCH 26/28] ia64: remove support for machvecs Christoph Hellwig
2019-08-13  7:25 ` [PATCH 27/28] ia64: remove CONFIG_SWIOTLB ifdefs Christoph Hellwig
2019-08-13  7:25 ` [PATCH 28/28] genirq: remove the is_affinity_mask_valid hook Christoph Hellwig

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Linux-ide Archive on lore.kernel.org

Archives are clonable:
	git clone --mirror https://lore.kernel.org/linux-ide/0 linux-ide/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 linux-ide linux-ide/ https://lore.kernel.org/linux-ide \
		linux-ide@vger.kernel.org linux-ide@archiver.kernel.org
	public-inbox-index linux-ide

Example config snippet for mirrors

Newsgroup available over NNTP:
	nntp://nntp.lore.kernel.org/org.kernel.vger.linux-ide


AGPL code for this site: git clone https://public-inbox.org/ public-inbox