[PATCH] eHCA: Add "Modify Port" verb
Joachim Fenkes
fenkes at de.ibm.com
Wed Apr 25 01:44:31 EST 2007
Add "Modify Port" verb support to eHCA driver.
ib_cm needs this to initialize properly.
Signed-off-by: Joachim Fenkes <fenkes at de.ibm.com>
---
This is the shiny new version of this patch with proper locking.
Tested and works.
ehca_classes.h | 1 +
ehca_hca.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++--
ehca_main.c | 1 +
hcp_if.c | 24 ++++++++++++++++++++++++
hcp_if.h | 4 ++++
5 files changed, 83 insertions(+), 2 deletions(-)
diff -urp a/drivers/infiniband/hw/ehca/ehca_classes.h b/drivers/infiniband/hw/ehca/ehca_classes.h
--- a/drivers/infiniband/hw/ehca/ehca_classes.h 2007-02-04 19:44:54.000000000 +0100
+++ b/drivers/infiniband/hw/ehca/ehca_classes.h 2007-04-24 14:51:38.000000000 +0200
@@ -96,6 +96,7 @@ struct ehca_shca {
struct ehca_mr *maxmr;
struct ehca_pd *pd;
struct h_galpas galpas;
+ struct mutex modify_mutex;
};
struct ehca_pd {
diff -urp a/drivers/infiniband/hw/ehca/ehca_hca.c b/drivers/infiniband/hw/ehca/ehca_hca.c
--- a/drivers/infiniband/hw/ehca/ehca_hca.c 2007-02-04 19:44:54.000000000 +0100
+++ b/drivers/infiniband/hw/ehca/ehca_hca.c 2007-04-24 14:50:43.000000000 +0200
@@ -147,6 +147,7 @@ int ehca_query_port(struct ib_device *ib
break;
}
+ props->port_cap_flags = rblock->capability_mask;
props->gid_tbl_len = rblock->gid_tbl_len;
props->max_msg_sz = rblock->max_msg_sz;
props->bad_pkey_cntr = rblock->bad_pkey_cntr;
@@ -233,10 +234,60 @@ query_gid1:
return ret;
}
+const u32 allowed_port_caps = (
+ IB_PORT_SM | IB_PORT_LED_INFO_SUP | IB_PORT_CM_SUP |
+ IB_PORT_SNMP_TUNNEL_SUP | IB_PORT_DEVICE_MGMT_SUP |
+ IB_PORT_VENDOR_CLASS_SUP);
+
int ehca_modify_port(struct ib_device *ibdev,
u8 port, int port_modify_mask,
struct ib_port_modify *props)
{
- /* Not implemented yet */
- return -EFAULT;
+ int ret = 0;
+ struct ehca_shca *shca = container_of(ibdev, struct ehca_shca, ib_device);
+ struct hipz_query_port *rblock;
+ u32 cap;
+ u64 hret;
+
+ if ((props->set_port_cap_mask | props->clr_port_cap_mask)
+ & ~allowed_port_caps) {
+ ehca_err(&shca->ib_device, "Non-changeable bits set in masks "
+ "set=%x clr=%x allowed=%x", props->set_port_cap_mask,
+ props->clr_port_cap_mask, allowed_port_caps);
+ return -EINVAL;
+ }
+
+ if (mutex_lock_interruptible(&shca->modify_mutex))
+ return -ERESTARTSYS;
+
+ rblock = ehca_alloc_fw_ctrlblock(GFP_KERNEL);
+ if (!rblock) {
+ ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
+ ret = -ENOMEM;
+ goto modify_port1;
+ }
+
+ if (hipz_h_query_port(shca->ipz_hca_handle, port, rblock) != H_SUCCESS) {
+ ehca_err(&shca->ib_device, "Can't query port properties");
+ ret = -EINVAL;
+ goto modify_port2;
+ }
+
+ cap = (rblock->capability_mask | props->set_port_cap_mask)
+ & ~props->clr_port_cap_mask;
+
+ hret = hipz_h_modify_port(shca->ipz_hca_handle, port,
+ cap, props->init_type, port_modify_mask);
+ if (hret != H_SUCCESS) {
+ ehca_err(&shca->ib_device, "Modify port failed hret=%lx", hret);
+ ret = -EINVAL;
+ }
+
+modify_port2:
+ ehca_free_fw_ctrlblock(rblock);
+
+modify_port1:
+ mutex_unlock(&shca->modify_mutex);
+
+ return ret;
}
diff -urp a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c
--- a/drivers/infiniband/hw/ehca/ehca_main.c 2007-02-04 19:44:54.000000000 +0100
+++ b/drivers/infiniband/hw/ehca/ehca_main.c 2007-04-24 14:50:43.000000000 +0200
@@ -583,6 +583,7 @@ static int __devinit ehca_probe(struct i
ehca_gen_err("Cannot allocate shca memory.");
return -ENOMEM;
}
+ mutex_init(&shca->modify_mutex);
shca->ibmebus_dev = dev;
shca->ipz_hca_handle.handle = *handle;
diff -urp a/drivers/infiniband/hw/ehca/hcp_if.c b/drivers/infiniband/hw/ehca/hcp_if.c
--- a/drivers/infiniband/hw/ehca/hcp_if.c 2007-02-04 19:44:54.000000000 +0100
+++ b/drivers/infiniband/hw/ehca/hcp_if.c 2007-04-23 18:06:09.000000000 +0200
@@ -70,6 +70,10 @@
#define H_ALL_RES_QP_SQUEUE_SIZE_PAGES EHCA_BMASK_IBM(0, 31)
#define H_ALL_RES_QP_RQUEUE_SIZE_PAGES EHCA_BMASK_IBM(32, 63)
+#define H_MP_INIT_TYPE EHCA_BMASK_IBM(44, 47)
+#define H_MP_SHUTDOWN EHCA_BMASK_IBM(48, 48)
+#define H_MP_RESET_QKEY_CTR EHCA_BMASK_IBM(49, 49)
+
/* direct access qp controls */
#define DAQP_CTRL_ENABLE 0x01
#define DAQP_CTRL_SEND_COMP 0x20
@@ -364,6 +368,26 @@ u64 hipz_h_query_port(const struct ipz_a
return ret;
}
+u64 hipz_h_modify_port(const struct ipz_adapter_handle adapter_handle,
+ const u8 port_id, const u32 port_cap,
+ const u8 init_type, const int modify_mask)
+{
+ u64 port_attributes = port_cap;
+
+ if (modify_mask & IB_PORT_SHUTDOWN)
+ port_attributes |= EHCA_BMASK_SET(H_MP_SHUTDOWN, 1);
+ if (modify_mask & IB_PORT_INIT_TYPE)
+ port_attributes |= EHCA_BMASK_SET(H_MP_INIT_TYPE, init_type);
+ if (modify_mask & IB_PORT_RESET_QKEY_CNTR)
+ port_attributes |= EHCA_BMASK_SET(H_MP_RESET_QKEY_CTR, 1);
+
+ return ehca_plpar_hcall_norets(H_MODIFY_PORT,
+ adapter_handle.handle, /* r4 */
+ port_id, /* r5 */
+ port_attributes, /* r6 */
+ 0, 0, 0, 0);
+}
+
u64 hipz_h_query_hca(const struct ipz_adapter_handle adapter_handle,
struct hipz_query_hca *query_hca_rblock)
{
diff -urp a/drivers/infiniband/hw/ehca/hcp_if.h b/drivers/infiniband/hw/ehca/hcp_if.h
--- a/drivers/infiniband/hw/ehca/hcp_if.h 2007-02-04 19:44:54.000000000 +0100
+++ b/drivers/infiniband/hw/ehca/hcp_if.h 2007-04-23 18:06:09.000000000 +0200
@@ -85,6 +85,10 @@ u64 hipz_h_query_port(const struct ipz_a
const u8 port_id,
struct hipz_query_port *query_port_response_block);
+u64 hipz_h_modify_port(const struct ipz_adapter_handle adapter_handle,
+ const u8 port_id, const u32 port_cap,
+ const u8 init_type, const int modify_mask);
+
u64 hipz_h_query_hca(const struct ipz_adapter_handle adapter_handle,
struct hipz_query_hca *query_hca_rblock);
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