diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/arm/fsl.txt | 19 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/tty/serial/msm_serial.txt | 27 | ||||
| -rw-r--r-- | Documentation/kernel-parameters.txt | 7 | ||||
| -rw-r--r-- | Documentation/networking/ip-sysctl.txt | 4 | ||||
| -rw-r--r-- | Documentation/networking/scaling.txt | 12 |
5 files changed, 58 insertions, 11 deletions
diff --git a/Documentation/devicetree/bindings/arm/fsl.txt b/Documentation/devicetree/bindings/arm/fsl.txt new file mode 100644 index 000000000000..e2401cd632ab --- /dev/null +++ b/Documentation/devicetree/bindings/arm/fsl.txt @@ -0,0 +1,19 @@ +i.MX51 Babbage Board +Required root node properties: + - compatible = "fsl,imx51-babbage", "fsl,imx51"; + +i.MX53 Automotive Reference Design Board +Required root node properties: + - compatible = "fsl,imx53-ard", "fsl,imx53"; + +i.MX53 Evaluation Kit +Required root node properties: + - compatible = "fsl,imx53-evk", "fsl,imx53"; + +i.MX53 Quick Start Board +Required root node properties: + - compatible = "fsl,imx53-qsb", "fsl,imx53"; + +i.MX53 Smart Mobile Reference Design Board +Required root node properties: + - compatible = "fsl,imx53-smd", "fsl,imx53"; diff --git a/Documentation/devicetree/bindings/tty/serial/msm_serial.txt b/Documentation/devicetree/bindings/tty/serial/msm_serial.txt new file mode 100644 index 000000000000..aef383eb8876 --- /dev/null +++ b/Documentation/devicetree/bindings/tty/serial/msm_serial.txt @@ -0,0 +1,27 @@ +* Qualcomm MSM UART + +Required properties: +- compatible : + - "qcom,msm-uart", and one of "qcom,msm-hsuart" or + "qcom,msm-lsuart". +- reg : offset and length of the register set for the device + for the hsuart operating in compatible mode, there should be a + second pair describing the gsbi registers. +- interrupts : should contain the uart interrupt. + +There are two different UART blocks used in MSM devices, +"qcom,msm-hsuart" and "qcom,msm-lsuart". The msm-serial driver is +able to handle both of these, and matches against the "qcom,msm-uart" +as the compatibility. + +The registers for the "qcom,msm-hsuart" device need to specify both +register blocks, even for the common driver. + +Example: + + uart@19c400000 { + compatible = "qcom,msm-hsuart", "qcom,msm-uart"; + reg = <0x19c40000 0x1000>, + <0x19c00000 0x1000>; + interrupts = <195>; + }; diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 854ed5ca7e3f..d6e6724446c8 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -2706,10 +2706,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted. functions are at fixed addresses, they make nice targets for exploits that can control RIP. - emulate [default] Vsyscalls turn into traps and are - emulated reasonably safely. + emulate Vsyscalls turn into traps and are emulated + reasonably safely. - native Vsyscalls are native syscall instructions. + native [default] Vsyscalls are native syscall + instructions. This is a little bit faster than trapping and makes a few dynamic recompilers work better than they would in emulation mode. diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 81546990f41c..ca5cdcd0f0e3 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -1042,7 +1042,7 @@ conf/interface/*: The functional behaviour for certain settings is different depending on whether local forwarding is enabled or not. -accept_ra - BOOLEAN +accept_ra - INTEGER Accept Router Advertisements; autoconfigure using them. Possible values are: @@ -1106,7 +1106,7 @@ dad_transmits - INTEGER The amount of Duplicate Address Detection probes to send. Default: 1 -forwarding - BOOLEAN +forwarding - INTEGER Configure interface-specific Host/Router behaviour. Note: It is recommended to have the same setting on all diff --git a/Documentation/networking/scaling.txt b/Documentation/networking/scaling.txt index 58fd7414e6c0..fe67b5c79f0f 100644 --- a/Documentation/networking/scaling.txt +++ b/Documentation/networking/scaling.txt @@ -27,7 +27,7 @@ applying a filter to each packet that assigns it to one of a small number of logical flows. Packets for each flow are steered to a separate receive queue, which in turn can be processed by separate CPUs. This mechanism is generally known as “Receive-side Scaling” (RSS). The goal of RSS and -the other scaling techniques to increase performance uniformly. +the other scaling techniques is to increase performance uniformly. Multi-queue distribution can also be used for traffic prioritization, but that is not the focus of these techniques. @@ -186,10 +186,10 @@ are steered using plain RPS. Multiple table entries may point to the same CPU. Indeed, with many flows and few CPUs, it is very likely that a single application thread handles flows with many different flow hashes. -rps_sock_table is a global flow table that contains the *desired* CPU for -flows: the CPU that is currently processing the flow in userspace. Each -table value is a CPU index that is updated during calls to recvmsg and -sendmsg (specifically, inet_recvmsg(), inet_sendmsg(), inet_sendpage() +rps_sock_flow_table is a global flow table that contains the *desired* CPU +for flows: the CPU that is currently processing the flow in userspace. +Each table value is a CPU index that is updated during calls to recvmsg +and sendmsg (specifically, inet_recvmsg(), inet_sendmsg(), inet_sendpage() and tcp_splice_read()). When the scheduler moves a thread to a new CPU while it has outstanding @@ -243,7 +243,7 @@ configured. The number of entries in the global flow table is set through: The number of entries in the per-queue flow table are set through: - /sys/class/net/<dev>/queues/tx-<n>/rps_flow_cnt + /sys/class/net/<dev>/queues/rx-<n>/rps_flow_cnt == Suggested Configuration |