---

yaml
---
r: 142988
b: refs/heads/master
c: d848223
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 2f2a2132ff056bb45697dc855eb4fd95b70b38cb
+refs/heads/master: d848223808c5d21e1b3cea090047e34722c6254b

trunk/Documentation/infiniband/ipoib.txt

@@ -24,6 +24,49 @@ Partitions and P_Keys
   The P_Key for any interface is given by the "pkey" file, and the
   main interface for a subinterface is in "parent."
 
+Datagram vs Connected modes
+
+  The IPoIB driver supports two modes of operation: datagram and
+  connected.  The mode is set and read through an interface's
+  /sys/class/net/<intf name>/mode file.
+
+  In datagram mode, the IB UD (Unreliable Datagram) transport is used
+  and so the interface MTU has is equal to the IB L2 MTU minus the
+  IPoIB encapsulation header (4 bytes).  For example, in a typical IB
+  fabric with a 2K MTU, the IPoIB MTU will be 2048 - 4 = 2044 bytes.
+
+  In connected mode, the IB RC (Reliable Connected) transport is used.
+  Connected mode is to takes advantage of the connected nature of the
+  IB transport and allows an MTU up to the maximal IP packet size of
+  64K, which reduces the number of IP packets needed for handling
+  large UDP datagrams, TCP segments, etc and increases the performance
+  for large messages.
+
+  In connected mode, the interface's UD QP is still used for multicast
+  and communication with peers that don't support connected mode. In
+  this case, RX emulation of ICMP PMTU packets is used to cause the
+  networking stack to use the smaller UD MTU for these neighbours.
+
+Stateless offloads
+
+  If the IB HW supports IPoIB stateless offloads, IPoIB advertises
+  TCP/IP checksum and/or Large Send (LSO) offloading capability to the
+  network stack.
+
+  Large Receive (LRO) offloading is also implemented and may be turned
+  on/off using ethtool calls.  Currently LRO is supported only for
+  checksum offload capable devices.
+
+  Stateless offloads are supported only in datagram mode.  
+
+Interrupt moderation
+
+  If the underlying IB device supports CQ event moderation, one can
+  use ethtool to set interrupt mitigation parameters and thus reduce
+  the overhead incurred by handling interrupts.  The main code path of
+  IPoIB doesn't use events for TX completion signaling so only RX
+  moderation is supported.
+
 Debugging Information
 
   By compiling the IPoIB driver with CONFIG_INFINIBAND_IPOIB_DEBUG set
@@ -55,3 +98,5 @@ References
     http://ietf.org/rfc/rfc4391.txt 
   IP over InfiniBand (IPoIB) Architecture (RFC 4392)
     http://ietf.org/rfc/rfc4392.txt 
+  IP over InfiniBand: Connected Mode (RFC 4755)
+    http://ietf.org/rfc/rfc4755.txt

trunk/include/asm-frv/thread_info.h → trunk/arch/frv/include/asm/thread_info.h

@@ -38,9 +38,9 @@ struct thread_info {
 	int			preempt_count;	/* 0 => preemptable, <0 => BUG */
 
 	mm_segment_t		addr_limit;	/* thread address space:
-					 	   0-0xBFFFFFFF for user-thead
-						   0-0xFFFFFFFF for kernel-thread
-						*/
+						 * 0-0xBFFFFFFF for user-thead
+						 * 0-0xFFFFFFFF for kernel-thread
+						 */
 	struct restart_block    restart_block;
 
 	__u8			supervisor_stack[0];

trunk/arch/x86/include/asm/fixmap.h

@@ -151,11 +151,11 @@ extern pte_t *pkmap_page_table;
 
 void __native_set_fixmap(enum fixed_addresses idx, pte_t pte);
 void native_set_fixmap(enum fixed_addresses idx,
-		       unsigned long phys, pgprot_t flags);
+		       phys_addr_t phys, pgprot_t flags);
 
 #ifndef CONFIG_PARAVIRT
 static inline void __set_fixmap(enum fixed_addresses idx,
-				unsigned long phys, pgprot_t flags)
+				phys_addr_t phys, pgprot_t flags)
 {
 	native_set_fixmap(idx, phys, flags);
 }

trunk/arch/x86/include/asm/paravirt.h

@@ -347,7 +347,7 @@ struct pv_mmu_ops {
 	/* Sometimes the physical address is a pfn, and sometimes its
 	   an mfn.  We can tell which is which from the index. */
 	void (*set_fixmap)(unsigned /* enum fixed_addresses */ idx,
-			   unsigned long phys, pgprot_t flags);
+			   phys_addr_t phys, pgprot_t flags);
 };
 
 struct raw_spinlock;
@@ -1432,7 +1432,7 @@ static inline void arch_leave_lazy_mmu_mode(void)
 void arch_flush_lazy_mmu_mode(void);
 
 static inline void __set_fixmap(unsigned /* enum fixed_addresses */ idx,
-				unsigned long phys, pgprot_t flags)
+				phys_addr_t phys, pgprot_t flags)
 {
 	pv_mmu_ops.set_fixmap(idx, phys, flags);
 }

trunk/arch/x86/mm/pgtable.c

@@ -345,7 +345,8 @@ void __native_set_fixmap(enum fixed_addresses idx, pte_t pte)
 	fixmaps_set++;
 }
 
-void native_set_fixmap(enum fixed_addresses idx, unsigned long phys, pgprot_t flags)
+void native_set_fixmap(enum fixed_addresses idx, phys_addr_t phys,
+		       pgprot_t flags)
 {
 	__native_set_fixmap(idx, pfn_pte(phys >> PAGE_SHIFT, flags));
 }

trunk/arch/x86/xen/mmu.c

@@ -1750,7 +1750,7 @@ __init pgd_t *xen_setup_kernel_pagetable(pgd_t *pgd,
 }
 #endif	/* CONFIG_X86_64 */
 
-static void xen_set_fixmap(unsigned idx, unsigned long phys, pgprot_t prot)
+static void xen_set_fixmap(unsigned idx, phys_addr_t phys, pgprot_t prot)
 {
 	pte_t pte;
 

trunk/drivers/block/xsysace.c

@@ -563,7 +563,7 @@ static void ace_fsm_dostate(struct ace_device *ace)
 	case ACE_FSM_STATE_IDENTIFY_PREPARE:
 		/* Send identify command */
 		ace->fsm_task = ACE_TASK_IDENTIFY;
-		ace->data_ptr = &ace->cf_id;
+		ace->data_ptr = ace->cf_id;
 		ace->data_count = ACE_BUF_PER_SECTOR;
 		ace_out(ace, ACE_SECCNTCMD, ACE_SECCNTCMD_IDENTIFY);
 
@@ -608,8 +608,8 @@ static void ace_fsm_dostate(struct ace_device *ace)
 		break;
 
 	case ACE_FSM_STATE_IDENTIFY_COMPLETE:
-		ace_fix_driveid(&ace->cf_id[0]);
-		ace_dump_mem(&ace->cf_id, 512);	/* Debug: Dump out disk ID */
+		ace_fix_driveid(ace->cf_id);
+		ace_dump_mem(ace->cf_id, 512);	/* Debug: Dump out disk ID */
 
 		if (ace->data_result) {
 			/* Error occured, disable the disk */
@@ -622,9 +622,9 @@ static void ace_fsm_dostate(struct ace_device *ace)
 
 			/* Record disk parameters */
 			set_capacity(ace->gd,
-				ata_id_u32(&ace->cf_id, ATA_ID_LBA_CAPACITY));
+				ata_id_u32(ace->cf_id, ATA_ID_LBA_CAPACITY));
 			dev_info(ace->dev, "capacity: %i sectors\n",
-				ata_id_u32(&ace->cf_id, ATA_ID_LBA_CAPACITY));
+				ata_id_u32(ace->cf_id, ATA_ID_LBA_CAPACITY));
 		}
 
 		/* We're done, drop to IDLE state and notify waiters */
@@ -923,7 +923,7 @@ static int ace_release(struct gendisk *disk, fmode_t mode)
 static int ace_getgeo(struct block_device *bdev, struct hd_geometry *geo)
 {
 	struct ace_device *ace = bdev->bd_disk->private_data;
-	u16 *cf_id = &ace->cf_id[0];
+	u16 *cf_id = ace->cf_id;
 
 	dev_dbg(ace->dev, "ace_getgeo()\n");
 

trunk/drivers/ide/at91_ide.c

@@ -20,7 +20,6 @@
  *
  */
 
-#include <linux/version.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/clk.h>
@@ -175,90 +174,6 @@ static void at91_ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
 	leave_16bit(chipselect, mode);
 }
 
-static u8 ide_mm_inb(unsigned long port)
-{
-	return readb((void __iomem *) port);
-}
-
-static void ide_mm_outb(u8 value, unsigned long port)
-{
-	writeb(value, (void __iomem *) port);
-}
-
-static void at91_ide_tf_load(ide_drive_t *drive, struct ide_cmd *cmd)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	struct ide_io_ports *io_ports = &hwif->io_ports;
-	struct ide_taskfile *tf = &cmd->tf;
-	u8 HIHI = (cmd->tf_flags & IDE_TFLAG_LBA48) ? 0xE0 : 0xEF;
-
-	if (cmd->ftf_flags & IDE_FTFLAG_FLAGGED)
-		HIHI = 0xFF;
-
-	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_FEATURE)
-		ide_mm_outb(tf->hob_feature, io_ports->feature_addr);
-	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_NSECT)
-		ide_mm_outb(tf->hob_nsect, io_ports->nsect_addr);
-	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAL)
-		ide_mm_outb(tf->hob_lbal, io_ports->lbal_addr);
-	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAM)
-		ide_mm_outb(tf->hob_lbam, io_ports->lbam_addr);
-	if (cmd->tf_flags & IDE_TFLAG_OUT_HOB_LBAH)
-		ide_mm_outb(tf->hob_lbah, io_ports->lbah_addr);
-
-	if (cmd->tf_flags & IDE_TFLAG_OUT_FEATURE)
-		ide_mm_outb(tf->feature, io_ports->feature_addr);
-	if (cmd->tf_flags & IDE_TFLAG_OUT_NSECT)
-		ide_mm_outb(tf->nsect, io_ports->nsect_addr);
-	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAL)
-		ide_mm_outb(tf->lbal, io_ports->lbal_addr);
-	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAM)
-		ide_mm_outb(tf->lbam, io_ports->lbam_addr);
-	if (cmd->tf_flags & IDE_TFLAG_OUT_LBAH)
-		ide_mm_outb(tf->lbah, io_ports->lbah_addr);
-
-	if (cmd->tf_flags & IDE_TFLAG_OUT_DEVICE)
-		ide_mm_outb((tf->device & HIHI) | drive->select, io_ports->device_addr);
-}
-
-static void at91_ide_tf_read(ide_drive_t *drive, struct ide_cmd *cmd)
-{
-	ide_hwif_t *hwif = drive->hwif;
-	struct ide_io_ports *io_ports = &hwif->io_ports;
-	struct ide_taskfile *tf = &cmd->tf;
-
-	/* be sure we're looking at the low order bits */
-	ide_mm_outb(ATA_DEVCTL_OBS, io_ports->ctl_addr);
-
-	if (cmd->tf_flags & IDE_TFLAG_IN_ERROR)
-		tf->error  = ide_mm_inb(io_ports->feature_addr);
-	if (cmd->tf_flags & IDE_TFLAG_IN_NSECT)
-		tf->nsect  = ide_mm_inb(io_ports->nsect_addr);
-	if (cmd->tf_flags & IDE_TFLAG_IN_LBAL)
-		tf->lbal   = ide_mm_inb(io_ports->lbal_addr);
-	if (cmd->tf_flags & IDE_TFLAG_IN_LBAM)
-		tf->lbam   = ide_mm_inb(io_ports->lbam_addr);
-	if (cmd->tf_flags & IDE_TFLAG_IN_LBAH)
-		tf->lbah   = ide_mm_inb(io_ports->lbah_addr);
-	if (cmd->tf_flags & IDE_TFLAG_IN_DEVICE)
-		tf->device = ide_mm_inb(io_ports->device_addr);
-
-	if (cmd->tf_flags & IDE_TFLAG_LBA48) {
-		ide_mm_outb(ATA_HOB | ATA_DEVCTL_OBS, io_ports->ctl_addr);
-
-		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_ERROR)
-			tf->hob_error = ide_mm_inb(io_ports->feature_addr);
-		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_NSECT)
-			tf->hob_nsect = ide_mm_inb(io_ports->nsect_addr);
-		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAL)
-			tf->hob_lbal  = ide_mm_inb(io_ports->lbal_addr);
-		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAM)
-			tf->hob_lbam  = ide_mm_inb(io_ports->lbam_addr);
-		if (cmd->tf_flags & IDE_TFLAG_IN_HOB_LBAH)
-			tf->hob_lbah  = ide_mm_inb(io_ports->lbah_addr);
-	}
-}
-
 static void at91_ide_set_pio_mode(ide_drive_t *drive, const u8 pio)
 {
 	struct ide_timing *timing;
@@ -284,8 +199,8 @@ static const struct ide_tp_ops at91_ide_tp_ops = {
 	.write_devctl	= ide_write_devctl,
 
 	.dev_select	= ide_dev_select,
-	.tf_load	= at91_ide_tf_load,
-	.tf_read	= at91_ide_tf_read,
+	.tf_load	= ide_tf_load,
+	.tf_read	= ide_tf_read,
 
 	.input_data	= at91_ide_input_data,
 	.output_data	= at91_ide_output_data,
@@ -300,7 +215,7 @@ static const struct ide_port_info at91_ide_port_info __initdata = {
 	.tp_ops		= &at91_ide_tp_ops,
 	.host_flags 	= IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA | IDE_HFLAG_SINGLE |
 			  IDE_HFLAG_NO_IO_32BIT | IDE_HFLAG_UNMASK_IRQS,
-	.pio_mask 	= ATA_PIO5,
+	.pio_mask 	= ATA_PIO6,
 };
 
 /*

trunk/drivers/ide/falconide.c

@@ -20,6 +20,7 @@
 #include <asm/atarihw.h>
 #include <asm/atariints.h>
 #include <asm/atari_stdma.h>
+#include <asm/ide.h>
 
 #define DRV_NAME "falconide"
 
@@ -67,8 +68,10 @@ static void falconide_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
 {
 	unsigned long data_addr = drive->hwif->io_ports.data_addr;
 
-	if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS))
-		return insw(data_addr, buf, (len + 1) / 2);
+	if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS)) {
+		__ide_mm_insw(data_addr, buf, (len + 1) / 2);
+		return;
+	}
 
 	raw_insw_swapw((u16 *)data_addr, buf, (len + 1) / 2);
 }
@@ -78,8 +81,10 @@ static void falconide_output_data(ide_drive_t *drive, struct ide_cmd *cmd,
 {
 	unsigned long data_addr = drive->hwif->io_ports.data_addr;
 
-	if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS))
-		return outsw(data_addr, buf, (len + 1) / 2);
+	if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS)) {
+		__ide_mm_outsw(data_addr, buf, (len + 1) / 2);
+		return;
+	}
 
 	raw_outsw_swapw((u16 *)data_addr, buf, (len + 1) / 2);
 }

trunk/drivers/ide/ide-acpi.c

@@ -318,8 +318,9 @@ static int do_drive_set_taskfiles(ide_drive_t *drive,
 
 		/* convert GTF to taskfile */
 		memset(&cmd, 0, sizeof(cmd));
-		memcpy(&cmd.tf_array[7], gtf, REGS_PER_GTF);
-		cmd.tf_flags = IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+		memcpy(&cmd.tf.feature, gtf, REGS_PER_GTF);
+		cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE;
+		cmd.valid.in.tf  = IDE_VALID_IN_TF  | IDE_VALID_DEVICE;
 
 		err = ide_no_data_taskfile(drive, &cmd);
 		if (err) {