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-rw-r--r--Documentation/DMA-attributes.txt18
-rw-r--r--Documentation/DocBook/device-drivers.tmpl17
-rw-r--r--Documentation/cgroups/cpusets.txt2
-rw-r--r--Documentation/cpu-hotplug.txt22
-rw-r--r--Documentation/devicetree/bindings/mtd/atmel-nand.txt10
-rw-r--r--Documentation/devicetree/bindings/regulator/anatop-regulator.txt29
-rw-r--r--Documentation/feature-removal-schedule.txt8
-rw-r--r--Documentation/hwmon/k10temp2
-rw-r--r--Documentation/ioctl/ioctl-number.txt1
-rw-r--r--Documentation/networking/driver.txt31
-rw-r--r--Documentation/networking/ip-sysctl.txt11
-rw-r--r--Documentation/networking/netdevices.txt25
12 files changed, 112 insertions, 64 deletions
diff --git a/Documentation/DMA-attributes.txt b/Documentation/DMA-attributes.txt
index b768cc0e402b..5c72eed89563 100644
--- a/Documentation/DMA-attributes.txt
+++ b/Documentation/DMA-attributes.txt
@@ -31,3 +31,21 @@ may be weakly ordered, that is that reads and writes may pass each other.
31Since it is optional for platforms to implement DMA_ATTR_WEAK_ORDERING, 31Since it is optional for platforms to implement DMA_ATTR_WEAK_ORDERING,
32those that do not will simply ignore the attribute and exhibit default 32those that do not will simply ignore the attribute and exhibit default
33behavior. 33behavior.
34
35DMA_ATTR_WRITE_COMBINE
36----------------------
37
38DMA_ATTR_WRITE_COMBINE specifies that writes to the mapping may be
39buffered to improve performance.
40
41Since it is optional for platforms to implement DMA_ATTR_WRITE_COMBINE,
42those that do not will simply ignore the attribute and exhibit default
43behavior.
44
45DMA_ATTR_NON_CONSISTENT
46-----------------------
47
48DMA_ATTR_NON_CONSISTENT lets the platform to choose to return either
49consistent or non-consistent memory as it sees fit. By using this API,
50you are guaranteeing to the platform that you have all the correct and
51necessary sync points for this memory in the driver.
diff --git a/Documentation/DocBook/device-drivers.tmpl b/Documentation/DocBook/device-drivers.tmpl
index 9c27e5125dd2..7514dbf0a679 100644
--- a/Documentation/DocBook/device-drivers.tmpl
+++ b/Documentation/DocBook/device-drivers.tmpl
@@ -446,4 +446,21 @@ X!Idrivers/video/console/fonts.c
446!Edrivers/i2c/i2c-core.c 446!Edrivers/i2c/i2c-core.c
447 </chapter> 447 </chapter>
448 448
449 <chapter id="hsi">
450 <title>High Speed Synchronous Serial Interface (HSI)</title>
451
452 <para>
453 High Speed Synchronous Serial Interface (HSI) is a
454 serial interface mainly used for connecting application
455 engines (APE) with cellular modem engines (CMT) in cellular
456 handsets.
457
458 HSI provides multiplexing for up to 16 logical channels,
459 low-latency and full duplex communication.
460 </para>
461
462!Iinclude/linux/hsi/hsi.h
463!Edrivers/hsi/hsi.c
464 </chapter>
465
449</book> 466</book>
diff --git a/Documentation/cgroups/cpusets.txt b/Documentation/cgroups/cpusets.txt
index 5c51ed406d1d..cefd3d8bbd11 100644
--- a/Documentation/cgroups/cpusets.txt
+++ b/Documentation/cgroups/cpusets.txt
@@ -217,7 +217,7 @@ and name space for cpusets, with a minimum of additional kernel code.
217 217
218The cpus and mems files in the root (top_cpuset) cpuset are 218The cpus and mems files in the root (top_cpuset) cpuset are
219read-only. The cpus file automatically tracks the value of 219read-only. The cpus file automatically tracks the value of
220cpu_online_map using a CPU hotplug notifier, and the mems file 220cpu_online_mask using a CPU hotplug notifier, and the mems file
221automatically tracks the value of node_states[N_HIGH_MEMORY]--i.e., 221automatically tracks the value of node_states[N_HIGH_MEMORY]--i.e.,
222nodes with memory--using the cpuset_track_online_nodes() hook. 222nodes with memory--using the cpuset_track_online_nodes() hook.
223 223
diff --git a/Documentation/cpu-hotplug.txt b/Documentation/cpu-hotplug.txt
index a20bfd415e41..66ef8f35613d 100644
--- a/Documentation/cpu-hotplug.txt
+++ b/Documentation/cpu-hotplug.txt
@@ -47,7 +47,7 @@ maxcpus=n Restrict boot time cpus to n. Say if you have 4 cpus, using
47 other cpus later online, read FAQ's for more info. 47 other cpus later online, read FAQ's for more info.
48 48
49additional_cpus=n (*) Use this to limit hotpluggable cpus. This option sets 49additional_cpus=n (*) Use this to limit hotpluggable cpus. This option sets
50 cpu_possible_map = cpu_present_map + additional_cpus 50 cpu_possible_mask = cpu_present_mask + additional_cpus
51 51
52cede_offline={"off","on"} Use this option to disable/enable putting offlined 52cede_offline={"off","on"} Use this option to disable/enable putting offlined
53 processors to an extended H_CEDE state on 53 processors to an extended H_CEDE state on
@@ -64,11 +64,11 @@ should only rely on this to count the # of cpus, but *MUST* not rely
64on the apicid values in those tables for disabled apics. In the event 64on the apicid values in those tables for disabled apics. In the event
65BIOS doesn't mark such hot-pluggable cpus as disabled entries, one could 65BIOS doesn't mark such hot-pluggable cpus as disabled entries, one could
66use this parameter "additional_cpus=x" to represent those cpus in the 66use this parameter "additional_cpus=x" to represent those cpus in the
67cpu_possible_map. 67cpu_possible_mask.
68 68
69possible_cpus=n [s390,x86_64] use this to set hotpluggable cpus. 69possible_cpus=n [s390,x86_64] use this to set hotpluggable cpus.
70 This option sets possible_cpus bits in 70 This option sets possible_cpus bits in
71 cpu_possible_map. Thus keeping the numbers of bits set 71 cpu_possible_mask. Thus keeping the numbers of bits set
72 constant even if the machine gets rebooted. 72 constant even if the machine gets rebooted.
73 73
74CPU maps and such 74CPU maps and such
@@ -76,7 +76,7 @@ CPU maps and such
76[More on cpumaps and primitive to manipulate, please check 76[More on cpumaps and primitive to manipulate, please check
77include/linux/cpumask.h that has more descriptive text.] 77include/linux/cpumask.h that has more descriptive text.]
78 78
79cpu_possible_map: Bitmap of possible CPUs that can ever be available in the 79cpu_possible_mask: Bitmap of possible CPUs that can ever be available in the
80system. This is used to allocate some boot time memory for per_cpu variables 80system. This is used to allocate some boot time memory for per_cpu variables
81that aren't designed to grow/shrink as CPUs are made available or removed. 81that aren't designed to grow/shrink as CPUs are made available or removed.
82Once set during boot time discovery phase, the map is static, i.e no bits 82Once set during boot time discovery phase, the map is static, i.e no bits
@@ -84,13 +84,13 @@ are added or removed anytime. Trimming it accurately for your system needs
84upfront can save some boot time memory. See below for how we use heuristics 84upfront can save some boot time memory. See below for how we use heuristics
85in x86_64 case to keep this under check. 85in x86_64 case to keep this under check.
86 86
87cpu_online_map: Bitmap of all CPUs currently online. Its set in __cpu_up() 87cpu_online_mask: Bitmap of all CPUs currently online. Its set in __cpu_up()
88after a cpu is available for kernel scheduling and ready to receive 88after a cpu is available for kernel scheduling and ready to receive
89interrupts from devices. Its cleared when a cpu is brought down using 89interrupts from devices. Its cleared when a cpu is brought down using
90__cpu_disable(), before which all OS services including interrupts are 90__cpu_disable(), before which all OS services including interrupts are
91migrated to another target CPU. 91migrated to another target CPU.
92 92
93cpu_present_map: Bitmap of CPUs currently present in the system. Not all 93cpu_present_mask: Bitmap of CPUs currently present in the system. Not all
94of them may be online. When physical hotplug is processed by the relevant 94of them may be online. When physical hotplug is processed by the relevant
95subsystem (e.g ACPI) can change and new bit either be added or removed 95subsystem (e.g ACPI) can change and new bit either be added or removed
96from the map depending on the event is hot-add/hot-remove. There are currently 96from the map depending on the event is hot-add/hot-remove. There are currently
@@ -99,22 +99,22 @@ at which time hotplug is disabled.
99 99
100You really dont need to manipulate any of the system cpu maps. They should 100You really dont need to manipulate any of the system cpu maps. They should
101be read-only for most use. When setting up per-cpu resources almost always use 101be read-only for most use. When setting up per-cpu resources almost always use
102cpu_possible_map/for_each_possible_cpu() to iterate. 102cpu_possible_mask/for_each_possible_cpu() to iterate.
103 103
104Never use anything other than cpumask_t to represent bitmap of CPUs. 104Never use anything other than cpumask_t to represent bitmap of CPUs.
105 105
106 #include <linux/cpumask.h> 106 #include <linux/cpumask.h>
107 107
108 for_each_possible_cpu - Iterate over cpu_possible_map 108 for_each_possible_cpu - Iterate over cpu_possible_mask
109 for_each_online_cpu - Iterate over cpu_online_map 109 for_each_online_cpu - Iterate over cpu_online_mask
110 for_each_present_cpu - Iterate over cpu_present_map 110 for_each_present_cpu - Iterate over cpu_present_mask
111 for_each_cpu_mask(x,mask) - Iterate over some random collection of cpu mask. 111 for_each_cpu_mask(x,mask) - Iterate over some random collection of cpu mask.
112 112
113 #include <linux/cpu.h> 113 #include <linux/cpu.h>
114 get_online_cpus() and put_online_cpus(): 114 get_online_cpus() and put_online_cpus():
115 115
116The above calls are used to inhibit cpu hotplug operations. While the 116The above calls are used to inhibit cpu hotplug operations. While the
117cpu_hotplug.refcount is non zero, the cpu_online_map will not change. 117cpu_hotplug.refcount is non zero, the cpu_online_mask will not change.
118If you merely need to avoid cpus going away, you could also use 118If you merely need to avoid cpus going away, you could also use
119preempt_disable() and preempt_enable() for those sections. 119preempt_disable() and preempt_enable() for those sections.
120Just remember the critical section cannot call any 120Just remember the critical section cannot call any
diff --git a/Documentation/devicetree/bindings/mtd/atmel-nand.txt b/Documentation/devicetree/bindings/mtd/atmel-nand.txt
index 5903ecf6e895..a20069502f5a 100644
--- a/Documentation/devicetree/bindings/mtd/atmel-nand.txt
+++ b/Documentation/devicetree/bindings/mtd/atmel-nand.txt
@@ -27,13 +27,13 @@ nand0: nand@40000000,0 {
27 reg = <0x40000000 0x10000000 27 reg = <0x40000000 0x10000000
28 0xffffe800 0x200 28 0xffffe800 0x200
29 >; 29 >;
30 atmel,nand-addr-offset = <21>; 30 atmel,nand-addr-offset = <21>; /* ale */
31 atmel,nand-cmd-offset = <22>; 31 atmel,nand-cmd-offset = <22>; /* cle */
32 nand-on-flash-bbt; 32 nand-on-flash-bbt;
33 nand-ecc-mode = "soft"; 33 nand-ecc-mode = "soft";
34 gpios = <&pioC 13 0 34 gpios = <&pioC 13 0 /* rdy */
35 &pioC 14 0 35 &pioC 14 0 /* nce */
36 0 36 0 /* cd */
37 >; 37 >;
38 partition@0 { 38 partition@0 {
39 ... 39 ...
diff --git a/Documentation/devicetree/bindings/regulator/anatop-regulator.txt b/Documentation/devicetree/bindings/regulator/anatop-regulator.txt
new file mode 100644
index 000000000000..357758cb6e92
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/anatop-regulator.txt
@@ -0,0 +1,29 @@
1Anatop Voltage regulators
2
3Required properties:
4- compatible: Must be "fsl,anatop-regulator"
5- anatop-reg-offset: Anatop MFD register offset
6- anatop-vol-bit-shift: Bit shift for the register
7- anatop-vol-bit-width: Number of bits used in the register
8- anatop-min-bit-val: Minimum value of this register
9- anatop-min-voltage: Minimum voltage of this regulator
10- anatop-max-voltage: Maximum voltage of this regulator
11
12Any property defined as part of the core regulator
13binding, defined in regulator.txt, can also be used.
14
15Example:
16
17 regulator-vddpu {
18 compatible = "fsl,anatop-regulator";
19 regulator-name = "vddpu";
20 regulator-min-microvolt = <725000>;
21 regulator-max-microvolt = <1300000>;
22 regulator-always-on;
23 anatop-reg-offset = <0x140>;
24 anatop-vol-bit-shift = <9>;
25 anatop-vol-bit-width = <5>;
26 anatop-min-bit-val = <1>;
27 anatop-min-voltage = <725000>;
28 anatop-max-voltage = <1300000>;
29 };
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index c1be8066ea59..709e08e9a222 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -6,14 +6,6 @@ be removed from this file.
6 6
7--------------------------- 7---------------------------
8 8
9What: x86 floppy disable_hlt
10When: 2012
11Why: ancient workaround of dubious utility clutters the
12 code used by everybody else.
13Who: Len Brown <len.brown@intel.com>
14
15---------------------------
16
17What: CONFIG_APM_CPU_IDLE, and its ability to call APM BIOS in idle 9What: CONFIG_APM_CPU_IDLE, and its ability to call APM BIOS in idle
18When: 2012 10When: 2012
19Why: This optional sub-feature of APM is of dubious reliability, 11Why: This optional sub-feature of APM is of dubious reliability,
diff --git a/Documentation/hwmon/k10temp b/Documentation/hwmon/k10temp
index a10f73624ad3..90956b618025 100644
--- a/Documentation/hwmon/k10temp
+++ b/Documentation/hwmon/k10temp
@@ -11,7 +11,7 @@ Supported chips:
11 Socket S1G2: Athlon (X2), Sempron (X2), Turion X2 (Ultra) 11 Socket S1G2: Athlon (X2), Sempron (X2), Turion X2 (Ultra)
12* AMD Family 12h processors: "Llano" (E2/A4/A6/A8-Series) 12* AMD Family 12h processors: "Llano" (E2/A4/A6/A8-Series)
13* AMD Family 14h processors: "Brazos" (C/E/G/Z-Series) 13* AMD Family 14h processors: "Brazos" (C/E/G/Z-Series)
14* AMD Family 15h processors: "Bulldozer" 14* AMD Family 15h processors: "Bulldozer" (FX-Series), "Trinity"
15 15
16 Prefix: 'k10temp' 16 Prefix: 'k10temp'
17 Addresses scanned: PCI space 17 Addresses scanned: PCI space
diff --git a/Documentation/ioctl/ioctl-number.txt b/Documentation/ioctl/ioctl-number.txt
index 3b7488fc3373..e34b531dc316 100644
--- a/Documentation/ioctl/ioctl-number.txt
+++ b/Documentation/ioctl/ioctl-number.txt
@@ -225,6 +225,7 @@ Code Seq#(hex) Include File Comments
225'j' 00-3F linux/joystick.h 225'j' 00-3F linux/joystick.h
226'k' 00-0F linux/spi/spidev.h conflict! 226'k' 00-0F linux/spi/spidev.h conflict!
227'k' 00-05 video/kyro.h conflict! 227'k' 00-05 video/kyro.h conflict!
228'k' 10-17 linux/hsi/hsi_char.h HSI character device
228'l' 00-3F linux/tcfs_fs.h transparent cryptographic file system 229'l' 00-3F linux/tcfs_fs.h transparent cryptographic file system
229 <http://web.archive.org/web/*/http://mikonos.dia.unisa.it/tcfs> 230 <http://web.archive.org/web/*/http://mikonos.dia.unisa.it/tcfs>
230'l' 40-7F linux/udf_fs_i.h in development: 231'l' 40-7F linux/udf_fs_i.h in development:
diff --git a/Documentation/networking/driver.txt b/Documentation/networking/driver.txt
index 03283daa64fe..da59e2884130 100644
--- a/Documentation/networking/driver.txt
+++ b/Documentation/networking/driver.txt
@@ -2,16 +2,16 @@ Document about softnet driver issues
2 2
3Transmit path guidelines: 3Transmit path guidelines:
4 4
51) The hard_start_xmit method must never return '1' under any 51) The ndo_start_xmit method must not return NETDEV_TX_BUSY under
6 normal circumstances. It is considered a hard error unless 6 any normal circumstances. It is considered a hard error unless
7 there is no way your device can tell ahead of time when it's 7 there is no way your device can tell ahead of time when it's
8 transmit function will become busy. 8 transmit function will become busy.
9 9
10 Instead it must maintain the queue properly. For example, 10 Instead it must maintain the queue properly. For example,
11 for a driver implementing scatter-gather this means: 11 for a driver implementing scatter-gather this means:
12 12
13 static int drv_hard_start_xmit(struct sk_buff *skb, 13 static netdev_tx_t drv_hard_start_xmit(struct sk_buff *skb,
14 struct net_device *dev) 14 struct net_device *dev)
15 { 15 {
16 struct drv *dp = netdev_priv(dev); 16 struct drv *dp = netdev_priv(dev);
17 17
@@ -23,7 +23,7 @@ Transmit path guidelines:
23 unlock_tx(dp); 23 unlock_tx(dp);
24 printk(KERN_ERR PFX "%s: BUG! Tx Ring full when queue awake!\n", 24 printk(KERN_ERR PFX "%s: BUG! Tx Ring full when queue awake!\n",
25 dev->name); 25 dev->name);
26 return 1; 26 return NETDEV_TX_BUSY;
27 } 27 }
28 28
29 ... queue packet to card ... 29 ... queue packet to card ...
@@ -35,6 +35,7 @@ Transmit path guidelines:
35 ... 35 ...
36 unlock_tx(dp); 36 unlock_tx(dp);
37 ... 37 ...
38 return NETDEV_TX_OK;
38 } 39 }
39 40
40 And then at the end of your TX reclamation event handling: 41 And then at the end of your TX reclamation event handling:
@@ -58,15 +59,12 @@ Transmit path guidelines:
58 TX_BUFFS_AVAIL(dp) > 0) 59 TX_BUFFS_AVAIL(dp) > 0)
59 netif_wake_queue(dp->dev); 60 netif_wake_queue(dp->dev);
60 61
612) Do not forget to update netdev->trans_start to jiffies after 622) An ndo_start_xmit method must not modify the shared parts of a
62 each new tx packet is given to the hardware.
63
643) A hard_start_xmit method must not modify the shared parts of a
65 cloned SKB. 63 cloned SKB.
66 64
674) Do not forget that once you return 0 from your hard_start_xmit 653) Do not forget that once you return NETDEV_TX_OK from your
68 method, it is your driver's responsibility to free up the SKB 66 ndo_start_xmit method, it is your driver's responsibility to free
69 and in some finite amount of time. 67 up the SKB and in some finite amount of time.
70 68
71 For example, this means that it is not allowed for your TX 69 For example, this means that it is not allowed for your TX
72 mitigation scheme to let TX packets "hang out" in the TX 70 mitigation scheme to let TX packets "hang out" in the TX
@@ -74,8 +72,9 @@ Transmit path guidelines:
74 This error can deadlock sockets waiting for send buffer room 72 This error can deadlock sockets waiting for send buffer room
75 to be freed up. 73 to be freed up.
76 74
77 If you return 1 from the hard_start_xmit method, you must not keep 75 If you return NETDEV_TX_BUSY from the ndo_start_xmit method, you
78 any reference to that SKB and you must not attempt to free it up. 76 must not keep any reference to that SKB and you must not attempt
77 to free it up.
79 78
80Probing guidelines: 79Probing guidelines:
81 80
@@ -85,10 +84,10 @@ Probing guidelines:
85 84
86Close/stop guidelines: 85Close/stop guidelines:
87 86
881) After the dev->stop routine has been called, the hardware must 871) After the ndo_stop routine has been called, the hardware must
89 not receive or transmit any data. All in flight packets must 88 not receive or transmit any data. All in flight packets must
90 be aborted. If necessary, poll or wait for completion of 89 be aborted. If necessary, poll or wait for completion of
91 any reset commands. 90 any reset commands.
92 91
932) The dev->stop routine will be called by unregister_netdevice 922) The ndo_stop routine will be called by unregister_netdevice
94 if device is still UP. 93 if device is still UP.
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index ad3e80e17b4f..bd80ba5847d2 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -604,15 +604,8 @@ IP Variables:
604ip_local_port_range - 2 INTEGERS 604ip_local_port_range - 2 INTEGERS
605 Defines the local port range that is used by TCP and UDP to 605 Defines the local port range that is used by TCP and UDP to
606 choose the local port. The first number is the first, the 606 choose the local port. The first number is the first, the
607 second the last local port number. Default value depends on 607 second the last local port number. The default values are
608 amount of memory available on the system: 608 32768 and 61000 respectively.
609 > 128Mb 32768-61000
610 < 128Mb 1024-4999 or even less.
611 This number defines number of active connections, which this
612 system can issue simultaneously to systems not supporting
613 TCP extensions (timestamps). With tcp_tw_recycle enabled
614 (i.e. by default) range 1024-4999 is enough to issue up to
615 2000 connections per second to systems supporting timestamps.
616 609
617ip_local_reserved_ports - list of comma separated ranges 610ip_local_reserved_ports - list of comma separated ranges
618 Specify the ports which are reserved for known third-party 611 Specify the ports which are reserved for known third-party
diff --git a/Documentation/networking/netdevices.txt b/Documentation/networking/netdevices.txt
index 89358341682a..c7ecc7080494 100644
--- a/Documentation/networking/netdevices.txt
+++ b/Documentation/networking/netdevices.txt
@@ -47,26 +47,25 @@ packets is preferred.
47 47
48struct net_device synchronization rules 48struct net_device synchronization rules
49======================================= 49=======================================
50dev->open: 50ndo_open:
51 Synchronization: rtnl_lock() semaphore. 51 Synchronization: rtnl_lock() semaphore.
52 Context: process 52 Context: process
53 53
54dev->stop: 54ndo_stop:
55 Synchronization: rtnl_lock() semaphore. 55 Synchronization: rtnl_lock() semaphore.
56 Context: process 56 Context: process
57 Note1: netif_running() is guaranteed false 57 Note: netif_running() is guaranteed false
58 Note2: dev->poll() is guaranteed to be stopped
59 58
60dev->do_ioctl: 59ndo_do_ioctl:
61 Synchronization: rtnl_lock() semaphore. 60 Synchronization: rtnl_lock() semaphore.
62 Context: process 61 Context: process
63 62
64dev->get_stats: 63ndo_get_stats:
65 Synchronization: dev_base_lock rwlock. 64 Synchronization: dev_base_lock rwlock.
66 Context: nominally process, but don't sleep inside an rwlock 65 Context: nominally process, but don't sleep inside an rwlock
67 66
68dev->hard_start_xmit: 67ndo_start_xmit:
69 Synchronization: netif_tx_lock spinlock. 68 Synchronization: __netif_tx_lock spinlock.
70 69
71 When the driver sets NETIF_F_LLTX in dev->features this will be 70 When the driver sets NETIF_F_LLTX in dev->features this will be
72 called without holding netif_tx_lock. In this case the driver 71 called without holding netif_tx_lock. In this case the driver
@@ -87,20 +86,20 @@ dev->hard_start_xmit:
87 o NETDEV_TX_LOCKED Locking failed, please retry quickly. 86 o NETDEV_TX_LOCKED Locking failed, please retry quickly.
88 Only valid when NETIF_F_LLTX is set. 87 Only valid when NETIF_F_LLTX is set.
89 88
90dev->tx_timeout: 89ndo_tx_timeout:
91 Synchronization: netif_tx_lock spinlock. 90 Synchronization: netif_tx_lock spinlock; all TX queues frozen.
92 Context: BHs disabled 91 Context: BHs disabled
93 Notes: netif_queue_stopped() is guaranteed true 92 Notes: netif_queue_stopped() is guaranteed true
94 93
95dev->set_rx_mode: 94ndo_set_rx_mode:
96 Synchronization: netif_tx_lock spinlock. 95 Synchronization: netif_addr_lock spinlock.
97 Context: BHs disabled 96 Context: BHs disabled
98 97
99struct napi_struct synchronization rules 98struct napi_struct synchronization rules
100======================================== 99========================================
101napi->poll: 100napi->poll:
102 Synchronization: NAPI_STATE_SCHED bit in napi->state. Device 101 Synchronization: NAPI_STATE_SCHED bit in napi->state. Device
103 driver's dev->close method will invoke napi_disable() on 102 driver's ndo_stop method will invoke napi_disable() on
104 all NAPI instances which will do a sleeping poll on the 103 all NAPI instances which will do a sleeping poll on the
105 NAPI_STATE_SCHED napi->state bit, waiting for all pending 104 NAPI_STATE_SCHED napi->state bit, waiting for all pending
106 NAPI activity to cease. 105 NAPI activity to cease.