diff options
| author |   David S. Miller <davem@davemloft.net> | 2017-06-10 14:11:12 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-06-10 14:11:12 -0700 |
| commit | 0abdfaf4a95435c0197603a262149019ca2f448d (patch) | |
| tree | f195fabfa9406d05f8578b0532136e14311bedc3 /arch/sparc/include | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc (diff) | |
| parent | sparc64: print debug messages when reading from LDC channel (diff) | |
| download | linux-dev-0abdfaf4a95435c0197603a262149019ca2f448d.tar.xz linux-dev-0abdfaf4a95435c0197603a262149019ca2f448d.zip | |
Merge branch 'sparc64-LDC-changes-for-porting-VCC-driver-into-upstream-kernel'
Jag Raman says:
====================
sparc64: LDC changes for porting VCC driver into upstream kernel
This series of patches is part of an effort to add VCC (Virtual Console
Concentrator) support to Linux.
VCC enables the virtualization of serial console on SPARC processors. VCC
provides access to the guest domain's serial console.
VCC depends on some core functionalities in the linux kernel for SPARC. The
functionalities include LDC (Logical Domain Channels), MDESC (Machine
Descriptor) and VIO (Virtual IO protocol). In order for VCC to be enabled,
it requires that these core functionalities support them.
This series of patches adds LDC support to enable VCC on Linux. It
is the first batch of changes to enable VCC.
This version 4 of the series addresses the following changes
suggested by Dave Miller
Patch 1/5: Modifies ldc_print/__ldc_print to print caller name. Fixes
indentation of wrapped lines.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include')
| -rw-r--r-- | arch/sparc/include/asm/ldc.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/sparc/include/asm/ldc.h b/arch/sparc/include/asm/ldc.h index 6e9004aa6f25..698738a10414 100644 --- a/arch/sparc/include/asm/ldc.h +++ b/arch/sparc/include/asm/ldc.h @@ -48,6 +48,8 @@ struct ldc_channel_config { #define LDC_STATE_READY 0x03 #define LDC_STATE_CONNECTED 0x04 +#define LDC_PACKET_SIZE 64 + struct ldc_channel; /* Allocate state for a channel. */ @@ -72,6 +74,12 @@ int ldc_connect(struct ldc_channel *lp); int ldc_disconnect(struct ldc_channel *lp); int ldc_state(struct ldc_channel *lp); +void ldc_set_state(struct ldc_channel *lp, u8 state); +int ldc_mode(struct ldc_channel *lp); +void __ldc_print(struct ldc_channel *lp, const char *caller); +int ldc_rx_reset(struct ldc_channel *lp); + +#define ldc_print(chan) __ldc_print(chan, __func__) /* Read and write operations. Only valid when the link is up. */ int ldc_write(struct ldc_channel *lp, const void *buf, |