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authorKashyap, Desai <kashyap.desai@lsi.com>2009-12-16 18:55:26 +0530
committerJames Bottomley <James.Bottomley@suse.de>2010-02-08 18:19:42 -0600
commit50d5c60634673a79f8d88564e10345b50fca7378 (patch)
tree837ce67b8dad98caddfc9469acecaca124ceea1d /drivers/scsi/mpt2sas/mpt2sas_config.c
parentf7c95ef02b564d9984c0655c9659791b1dd5d7ad (diff)
downloadlinux-50d5c60634673a79f8d88564e10345b50fca7378.tar.bz2
[SCSI] mpt2sas: Added phy_enable and set_phy_speed sysfs callback support.
Added new callbacks phy_enable and set_phy_speed in the mpt2sas_transport_functions template. This will allow end user to enable/disable phys and change links rates using the SysFS interface. Current implementation only supports direct attached phys, but we could in the future add support for expander based phys. A new subroutine mpt2sas_config_set_sas_iounit_pg1 was added; this wrapper function used to send request to controller firmware to modify the phys and link rates. A new subroutine _transport_find_local_phy was added; a function for easly obtaining the local phy object for direct attached. Example to disable a phy echo 0 > /sys/class/phy3:0/enable Example to enable the same phy echo 1 > /sys/class/phy3:0/enable Example to change the link rate to 1.5 #echo "1.5 Gbit" > /sys/class/phy3:0/maximum_linkrate #cat /sys/class/phy3:0/negotiated_linkrate 1.5 Gbit Example to change the link rate to 3.0 #echo "3.0 Gbit" > /sys/class/phy3:0/maximum_linkrate #cat /sys/class/phy3:0/negotiated_linkrate 3.0 Gbit Example to change the link rate to 6.0 #echo "6.0 Gbit" > /sys/class/phy3:0/maximum_linkrate #cat /sys/class/phy3:0/negotiated_linkrate 6.0 Gbit Signed-off-by: Kashyap Desai <kashyap.desai@lsi.com> Reviewed-by: Eric Moore <eric.moore@lsi.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/mpt2sas/mpt2sas_config.c')
-rw-r--r--drivers/scsi/mpt2sas/mpt2sas_config.c51
1 files changed, 48 insertions, 3 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_config.c b/drivers/scsi/mpt2sas/mpt2sas_config.c
index 594a389c6526..411c27d7f787 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_config.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_config.c
@@ -324,7 +324,9 @@ _config_request(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigRequest_t
if (r != 0)
goto out;
if (mpi_request->Action ==
- MPI2_CONFIG_ACTION_PAGE_WRITE_CURRENT) {
+ MPI2_CONFIG_ACTION_PAGE_WRITE_CURRENT ||
+ mpi_request->Action ==
+ MPI2_CONFIG_ACTION_PAGE_WRITE_NVRAM) {
ioc->base_add_sg_single(&mpi_request->PageBufferSGE,
MPT2_CONFIG_COMMON_WRITE_SGLFLAGS | mem.sz,
mem.page_dma);
@@ -882,7 +884,7 @@ mpt2sas_config_get_sas_iounit_pg0(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
}
/**
- * mpt2sas_config_get_sas_iounit_pg1 - obtain sas iounit page 0
+ * mpt2sas_config_get_sas_iounit_pg1 - obtain sas iounit page 1
* @ioc: per adapter object
* @mpi_reply: reply mf payload returned from firmware
* @config_page: contents of the config page
@@ -907,7 +909,7 @@ mpt2sas_config_get_sas_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_IO_UNIT;
mpi_request.Header.PageNumber = 1;
- mpi_request.Header.PageVersion = MPI2_SASIOUNITPAGE0_PAGEVERSION;
+ mpi_request.Header.PageVersion = MPI2_SASIOUNITPAGE1_PAGEVERSION;
mpt2sas_base_build_zero_len_sge(ioc, &mpi_request.PageBufferSGE);
r = _config_request(ioc, &mpi_request, mpi_reply,
MPT2_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
@@ -922,6 +924,49 @@ mpt2sas_config_get_sas_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
}
/**
+ * mpt2sas_config_set_sas_iounit_pg1 - send sas iounit page 1
+ * @ioc: per adapter object
+ * @mpi_reply: reply mf payload returned from firmware
+ * @config_page: contents of the config page
+ * @sz: size of buffer passed in config_page
+ * Context: sleep.
+ *
+ * Calling function should call config_get_number_hba_phys prior to
+ * this function, so enough memory is allocated for config_page.
+ *
+ * Returns 0 for success, non-zero for failure.
+ */
+int
+mpt2sas_config_set_sas_iounit_pg1(struct MPT2SAS_ADAPTER *ioc, Mpi2ConfigReply_t
+ *mpi_reply, Mpi2SasIOUnitPage1_t *config_page, u16 sz)
+{
+ Mpi2ConfigRequest_t mpi_request;
+ int r;
+
+ memset(&mpi_request, 0, sizeof(Mpi2ConfigRequest_t));
+ mpi_request.Function = MPI2_FUNCTION_CONFIG;
+ mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_HEADER;
+ mpi_request.Header.PageType = MPI2_CONFIG_PAGETYPE_EXTENDED;
+ mpi_request.ExtPageType = MPI2_CONFIG_EXTPAGETYPE_SAS_IO_UNIT;
+ mpi_request.Header.PageNumber = 1;
+ mpi_request.Header.PageVersion = MPI2_SASIOUNITPAGE1_PAGEVERSION;
+ mpt2sas_base_build_zero_len_sge(ioc, &mpi_request.PageBufferSGE);
+ r = _config_request(ioc, &mpi_request, mpi_reply,
+ MPT2_CONFIG_PAGE_DEFAULT_TIMEOUT, NULL, 0);
+ if (r)
+ goto out;
+
+ mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_WRITE_CURRENT;
+ _config_request(ioc, &mpi_request, mpi_reply,
+ MPT2_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page, sz);
+ mpi_request.Action = MPI2_CONFIG_ACTION_PAGE_WRITE_NVRAM;
+ r = _config_request(ioc, &mpi_request, mpi_reply,
+ MPT2_CONFIG_PAGE_DEFAULT_TIMEOUT, config_page, sz);
+ out:
+ return r;
+}
+
+/**
* mpt2sas_config_get_expander_pg0 - obtain expander page 0
* @ioc: per adapter object
* @mpi_reply: reply mf payload returned from firmware