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authorLinus Torvalds <torvalds@linux-foundation.org>2010-08-07 17:08:02 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-08-07 17:08:02 -0700
commit3cc08fc35db75b059118626c30b60b0f56583802 (patch)
tree704d71199c8be8d5b822ca424675291e8cec7bde /drivers/infiniband/hw/qib/qib_common.h
parentfaa38b5e0e092914764cdba9f83d31a3f794d182 (diff)
parent03b37ecdb3975f09832747600853d3818a50eda3 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (42 commits) IB/qib: Add missing <linux/slab.h> include IB/ehca: Drop unnecessary NULL test RDMA/nes: Fix confusing if statement indentation IB/ehca: Init irq tasklet before irq can happen RDMA/nes: Fix misindented code RDMA/nes: Fix showing wqm_quanta RDMA/nes: Get rid of "set but not used" variables RDMA/nes: Read firmware version from correct place IB/srp: Export req_lim via sysfs IB/srp: Make receive buffer handling more robust IB/srp: Use print_hex_dump() IB: Rename RAW_ETY to RAW_ETHERTYPE RDMA/nes: Fix two sparse warnings RDMA/cxgb3: Make needlessly global iwch_l2t_send() static IB/iser: Make needlessly global iser_alloc_rx_descriptors() static RDMA/cxgb4: Add timeouts when waiting for FW responses IB/qib: Fix race between qib_error_qp() and receive packet processing IB/qib: Limit the number of packets processed per interrupt IB/qib: Allow writes to the diag_counters to be able to clear them IB/qib: Set cfgctxts to number of CPUs by default ...
Diffstat (limited to 'drivers/infiniband/hw/qib/qib_common.h')
-rw-r--r--drivers/infiniband/hw/qib/qib_common.h16
1 files changed, 14 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/qib/qib_common.h b/drivers/infiniband/hw/qib/qib_common.h
index b3955ed8f79..145da404088 100644
--- a/drivers/infiniband/hw/qib/qib_common.h
+++ b/drivers/infiniband/hw/qib/qib_common.h
@@ -279,7 +279,7 @@ struct qib_base_info {
* may not be implemented; the user code must deal with this if it
* cares, or it must abort after initialization reports the difference.
*/
-#define QIB_USER_SWMINOR 10
+#define QIB_USER_SWMINOR 11
#define QIB_USER_SWVERSION ((QIB_USER_SWMAJOR << 16) | QIB_USER_SWMINOR)
@@ -302,6 +302,18 @@ struct qib_base_info {
#define QIB_KERN_SWVERSION ((QIB_KERN_TYPE << 31) | QIB_USER_SWVERSION)
/*
+ * If the unit is specified via open, HCA choice is fixed. If port is
+ * specified, it's also fixed. Otherwise we try to spread contexts
+ * across ports and HCAs, using different algorithims. WITHIN is
+ * the old default, prior to this mechanism.
+ */
+#define QIB_PORT_ALG_ACROSS 0 /* round robin contexts across HCAs, then
+ * ports; this is the default */
+#define QIB_PORT_ALG_WITHIN 1 /* use all contexts on an HCA (round robin
+ * active ports within), then next HCA */
+#define QIB_PORT_ALG_COUNT 2 /* number of algorithm choices */
+
+/*
* This structure is passed to qib_userinit() to tell the driver where
* user code buffers are, sizes, etc. The offsets and sizes of the
* fields must remain unchanged, for binary compatibility. It can
@@ -319,7 +331,7 @@ struct qib_user_info {
/* size of struct base_info to write to */
__u32 spu_base_info_size;
- __u32 _spu_unused3;
+ __u32 spu_port_alg; /* which QIB_PORT_ALG_*; unused user minor < 11 */
/*
* If two or more processes wish to share a context, each process