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Diffstat (limited to 'drivers/infiniband/hw/ehca')
-rw-r--r--drivers/infiniband/hw/ehca/Kconfig1
-rw-r--r--drivers/infiniband/hw/ehca/ehca_av.c7
-rw-r--r--drivers/infiniband/hw/ehca/ehca_cq.c2
-rw-r--r--drivers/infiniband/hw/ehca/ehca_hca.c17
-rw-r--r--drivers/infiniband/hw/ehca/ehca_irq.c17
-rw-r--r--drivers/infiniband/hw/ehca/ehca_iverbs.h8
-rw-r--r--drivers/infiniband/hw/ehca/ehca_main.c56
-rw-r--r--drivers/infiniband/hw/ehca/ehca_mrmw.c12
-rw-r--r--drivers/infiniband/hw/ehca/ehca_pd.c2
-rw-r--r--drivers/infiniband/hw/ehca/ehca_qp.c34
-rw-r--r--drivers/infiniband/hw/ehca/hipz_hw.h2
-rw-r--r--drivers/infiniband/hw/ehca/ipz_pt_fn.c13
-rw-r--r--drivers/infiniband/hw/ehca/ipz_pt_fn.h15
13 files changed, 129 insertions, 57 deletions
diff --git a/drivers/infiniband/hw/ehca/Kconfig b/drivers/infiniband/hw/ehca/Kconfig
index 922389b64394..727b10d89686 100644
--- a/drivers/infiniband/hw/ehca/Kconfig
+++ b/drivers/infiniband/hw/ehca/Kconfig
@@ -10,6 +10,7 @@ config INFINIBAND_EHCA
config INFINIBAND_EHCA_SCALING
bool "Scaling support (EXPERIMENTAL)"
depends on IBMEBUS && INFINIBAND_EHCA && HOTPLUG_CPU && EXPERIMENTAL
+ default y
---help---
eHCA scaling support schedules the CQ callbacks to different CPUs.
diff --git a/drivers/infiniband/hw/ehca/ehca_av.c b/drivers/infiniband/hw/ehca/ehca_av.c
index 3bac197f9014..0d6e2c4bb245 100644
--- a/drivers/infiniband/hw/ehca/ehca_av.c
+++ b/drivers/infiniband/hw/ehca/ehca_av.c
@@ -57,7 +57,7 @@ struct ib_ah *ehca_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr)
struct ehca_shca *shca = container_of(pd->device, struct ehca_shca,
ib_device);
- av = kmem_cache_alloc(av_cache, SLAB_KERNEL);
+ av = kmem_cache_alloc(av_cache, GFP_KERNEL);
if (!av) {
ehca_err(pd->device, "Out of memory pd=%p ah_attr=%p",
pd, ah_attr);
@@ -118,8 +118,7 @@ struct ib_ah *ehca_create_ah(struct ib_pd *pd, struct ib_ah_attr *ah_attr)
}
memcpy(&av->av.grh.word_1, &gid, sizeof(gid));
}
- /* for the time being we use a hard coded PMTU of 2048 Bytes */
- av->av.pmtu = 4;
+ av->av.pmtu = EHCA_MAX_MTU;
/* dgid comes in grh.word_3 */
memcpy(&av->av.grh.word_3, &ah_attr->grh.dgid,
@@ -193,7 +192,7 @@ int ehca_modify_ah(struct ib_ah *ah, struct ib_ah_attr *ah_attr)
memcpy(&new_ehca_av.grh.word_1, &gid, sizeof(gid));
}
- new_ehca_av.pmtu = 4; /* see also comment in create_ah() */
+ new_ehca_av.pmtu = EHCA_MAX_MTU;
memcpy(&new_ehca_av.grh.word_3, &ah_attr->grh.dgid,
sizeof(ah_attr->grh.dgid));
diff --git a/drivers/infiniband/hw/ehca/ehca_cq.c b/drivers/infiniband/hw/ehca/ehca_cq.c
index 458fe19648a1..93995b658d94 100644
--- a/drivers/infiniband/hw/ehca/ehca_cq.c
+++ b/drivers/infiniband/hw/ehca/ehca_cq.c
@@ -134,7 +134,7 @@ struct ib_cq *ehca_create_cq(struct ib_device *device, int cqe,
if (cqe >= 0xFFFFFFFF - 64 - additional_cqe)
return ERR_PTR(-EINVAL);
- my_cq = kmem_cache_alloc(cq_cache, SLAB_KERNEL);
+ my_cq = kmem_cache_alloc(cq_cache, GFP_KERNEL);
if (!my_cq) {
ehca_err(device, "Out of memory for ehca_cq struct device=%p",
device);
diff --git a/drivers/infiniband/hw/ehca/ehca_hca.c b/drivers/infiniband/hw/ehca/ehca_hca.c
index 5eae6ac48425..e1b618c5f685 100644
--- a/drivers/infiniband/hw/ehca/ehca_hca.c
+++ b/drivers/infiniband/hw/ehca/ehca_hca.c
@@ -40,6 +40,7 @@
*/
#include "ehca_tools.h"
+#include "ehca_iverbs.h"
#include "hcp_if.h"
int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props)
@@ -49,7 +50,7 @@ int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props)
ib_device);
struct hipz_query_hca *rblock;
- rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
+ rblock = ehca_alloc_fw_ctrlblock();
if (!rblock) {
ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
return -ENOMEM;
@@ -96,7 +97,7 @@ int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props)
= min_t(int, rblock->max_total_mcast_qp_attach, INT_MAX);
query_device1:
- kfree(rblock);
+ ehca_free_fw_ctrlblock(rblock);
return ret;
}
@@ -109,7 +110,7 @@ int ehca_query_port(struct ib_device *ibdev,
ib_device);
struct hipz_query_port *rblock;
- rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
+ rblock = ehca_alloc_fw_ctrlblock();
if (!rblock) {
ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
return -ENOMEM;
@@ -162,7 +163,7 @@ int ehca_query_port(struct ib_device *ibdev,
props->active_speed = 0x1;
query_port1:
- kfree(rblock);
+ ehca_free_fw_ctrlblock(rblock);
return ret;
}
@@ -178,7 +179,7 @@ int ehca_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey)
return -EINVAL;
}
- rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
+ rblock = ehca_alloc_fw_ctrlblock();
if (!rblock) {
ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
return -ENOMEM;
@@ -193,7 +194,7 @@ int ehca_query_pkey(struct ib_device *ibdev, u8 port, u16 index, u16 *pkey)
memcpy(pkey, &rblock->pkey_entries + index, sizeof(u16));
query_pkey1:
- kfree(rblock);
+ ehca_free_fw_ctrlblock(rblock);
return ret;
}
@@ -211,7 +212,7 @@ int ehca_query_gid(struct ib_device *ibdev, u8 port,
return -EINVAL;
}
- rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
+ rblock = ehca_alloc_fw_ctrlblock();
if (!rblock) {
ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
return -ENOMEM;
@@ -227,7 +228,7 @@ int ehca_query_gid(struct ib_device *ibdev, u8 port,
memcpy(&gid->raw[8], &rblock->guid_entries[index], sizeof(u64));
query_gid1:
- kfree(rblock);
+ ehca_free_fw_ctrlblock(rblock);
return ret;
}
diff --git a/drivers/infiniband/hw/ehca/ehca_irq.c b/drivers/infiniband/hw/ehca/ehca_irq.c
index 048cc443d1e7..c3ea746e9045 100644
--- a/drivers/infiniband/hw/ehca/ehca_irq.c
+++ b/drivers/infiniband/hw/ehca/ehca_irq.c
@@ -45,6 +45,7 @@
#include "ehca_tools.h"
#include "hcp_if.h"
#include "hipz_fns.h"
+#include "ipz_pt_fn.h"
#define EQE_COMPLETION_EVENT EHCA_BMASK_IBM(1,1)
#define EQE_CQ_QP_NUMBER EHCA_BMASK_IBM(8,31)
@@ -137,38 +138,36 @@ int ehca_error_data(struct ehca_shca *shca, void *data,
u64 *rblock;
unsigned long block_count;
- rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
+ rblock = ehca_alloc_fw_ctrlblock();
if (!rblock) {
ehca_err(&shca->ib_device, "Cannot allocate rblock memory.");
ret = -ENOMEM;
goto error_data1;
}
+ /* rblock must be 4K aligned and should be 4K large */
ret = hipz_h_error_data(shca->ipz_hca_handle,
resource,
rblock,
&block_count);
- if (ret == H_R_STATE) {
+ if (ret == H_R_STATE)
ehca_err(&shca->ib_device,
"No error data is available: %lx.", resource);
- }
else if (ret == H_SUCCESS) {
int length;
length = EHCA_BMASK_GET(ERROR_DATA_LENGTH, rblock[0]);
- if (length > PAGE_SIZE)
- length = PAGE_SIZE;
+ if (length > EHCA_PAGESIZE)
+ length = EHCA_PAGESIZE;
print_error_data(shca, data, rblock, length);
- }
- else {
+ } else
ehca_err(&shca->ib_device,
"Error data could not be fetched: %lx", resource);
- }
- kfree(rblock);
+ ehca_free_fw_ctrlblock(rblock);
error_data1:
return ret;
diff --git a/drivers/infiniband/hw/ehca/ehca_iverbs.h b/drivers/infiniband/hw/ehca/ehca_iverbs.h
index 319c39d47f3a..3720e3032cce 100644
--- a/drivers/infiniband/hw/ehca/ehca_iverbs.h
+++ b/drivers/infiniband/hw/ehca/ehca_iverbs.h
@@ -179,4 +179,12 @@ int ehca_mmap_register(u64 physical,void **mapped,
int ehca_munmap(unsigned long addr, size_t len);
+#ifdef CONFIG_PPC_64K_PAGES
+void *ehca_alloc_fw_ctrlblock(void);
+void ehca_free_fw_ctrlblock(void *ptr);
+#else
+#define ehca_alloc_fw_ctrlblock() ((void *) get_zeroed_page(GFP_KERNEL))
+#define ehca_free_fw_ctrlblock(ptr) free_page((unsigned long)(ptr))
+#endif
+
#endif
diff --git a/drivers/infiniband/hw/ehca/ehca_main.c b/drivers/infiniband/hw/ehca/ehca_main.c
index 024d511c4b58..cc47e4c13a18 100644
--- a/drivers/infiniband/hw/ehca/ehca_main.c
+++ b/drivers/infiniband/hw/ehca/ehca_main.c
@@ -40,6 +40,9 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
+#ifdef CONFIG_PPC_64K_PAGES
+#include <linux/slab.h>
+#endif
#include "ehca_classes.h"
#include "ehca_iverbs.h"
#include "ehca_mrmw.h"
@@ -49,7 +52,7 @@
MODULE_LICENSE("Dual BSD/GPL");
MODULE_AUTHOR("Christoph Raisch <raisch@de.ibm.com>");
MODULE_DESCRIPTION("IBM eServer HCA InfiniBand Device Driver");
-MODULE_VERSION("SVNEHCA_0017");
+MODULE_VERSION("SVNEHCA_0019");
int ehca_open_aqp1 = 0;
int ehca_debug_level = 0;
@@ -94,11 +97,31 @@ spinlock_t ehca_cq_idr_lock;
DEFINE_IDR(ehca_qp_idr);
DEFINE_IDR(ehca_cq_idr);
+
static struct list_head shca_list; /* list of all registered ehcas */
static spinlock_t shca_list_lock;
static struct timer_list poll_eqs_timer;
+#ifdef CONFIG_PPC_64K_PAGES
+static struct kmem_cache *ctblk_cache = NULL;
+
+void *ehca_alloc_fw_ctrlblock(void)
+{
+ void *ret = kmem_cache_zalloc(ctblk_cache, GFP_KERNEL);
+ if (!ret)
+ ehca_gen_err("Out of memory for ctblk");
+ return ret;
+}
+
+void ehca_free_fw_ctrlblock(void *ptr)
+{
+ if (ptr)
+ kmem_cache_free(ctblk_cache, ptr);
+
+}
+#endif
+
static int ehca_create_slab_caches(void)
{
int ret;
@@ -133,6 +156,17 @@ static int ehca_create_slab_caches(void)
goto create_slab_caches5;
}
+#ifdef CONFIG_PPC_64K_PAGES
+ ctblk_cache = kmem_cache_create("ehca_cache_ctblk",
+ EHCA_PAGESIZE, H_CB_ALIGNMENT,
+ SLAB_HWCACHE_ALIGN,
+ NULL, NULL);
+ if (!ctblk_cache) {
+ ehca_gen_err("Cannot create ctblk SLAB cache.");
+ ehca_cleanup_mrmw_cache();
+ goto create_slab_caches5;
+ }
+#endif
return 0;
create_slab_caches5:
@@ -157,6 +191,10 @@ static void ehca_destroy_slab_caches(void)
ehca_cleanup_qp_cache();
ehca_cleanup_cq_cache();
ehca_cleanup_pd_cache();
+#ifdef CONFIG_PPC_64K_PAGES
+ if (ctblk_cache)
+ kmem_cache_destroy(ctblk_cache);
+#endif
}
#define EHCA_HCAAVER EHCA_BMASK_IBM(32,39)
@@ -168,7 +206,7 @@ int ehca_sense_attributes(struct ehca_shca *shca)
u64 h_ret;
struct hipz_query_hca *rblock;
- rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
+ rblock = ehca_alloc_fw_ctrlblock();
if (!rblock) {
ehca_gen_err("Cannot allocate rblock memory.");
return -ENOMEM;
@@ -211,7 +249,7 @@ int ehca_sense_attributes(struct ehca_shca *shca)
shca->sport[1].rate = IB_RATE_30_GBPS;
num_ports1:
- kfree(rblock);
+ ehca_free_fw_ctrlblock(rblock);
return ret;
}
@@ -220,7 +258,7 @@ static int init_node_guid(struct ehca_shca *shca)
int ret = 0;
struct hipz_query_hca *rblock;
- rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
+ rblock = ehca_alloc_fw_ctrlblock();
if (!rblock) {
ehca_err(&shca->ib_device, "Can't allocate rblock memory.");
return -ENOMEM;
@@ -235,7 +273,7 @@ static int init_node_guid(struct ehca_shca *shca)
memcpy(&shca->ib_device.node_guid, &rblock->node_guid, sizeof(u64));
init_node_guid1:
- kfree(rblock);
+ ehca_free_fw_ctrlblock(rblock);
return ret;
}
@@ -431,7 +469,7 @@ static ssize_t ehca_show_##name(struct device *dev, \
\
shca = dev->driver_data; \
\
- rblock = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL); \
+ rblock = ehca_alloc_fw_ctrlblock(); \
if (!rblock) { \
dev_err(dev, "Can't allocate rblock memory."); \
return 0; \
@@ -439,12 +477,12 @@ static ssize_t ehca_show_##name(struct device *dev, \
\
if (hipz_h_query_hca(shca->ipz_hca_handle, rblock) != H_SUCCESS) { \
dev_err(dev, "Can't query device properties"); \
- kfree(rblock); \
+ ehca_free_fw_ctrlblock(rblock); \
return 0; \
} \
\
data = rblock->name; \
- kfree(rblock); \
+ ehca_free_fw_ctrlblock(rblock); \
\
if ((strcmp(#name, "num_ports") == 0) && (ehca_nr_ports == 1)) \
return snprintf(buf, 256, "1\n"); \
@@ -752,7 +790,7 @@ int __init ehca_module_init(void)
int ret;
printk(KERN_INFO "eHCA Infiniband Device Driver "
- "(Rel.: SVNEHCA_0017)\n");
+ "(Rel.: SVNEHCA_0019)\n");
idr_init(&ehca_qp_idr);
idr_init(&ehca_cq_idr);
spin_lock_init(&ehca_qp_idr_lock);
diff --git a/drivers/infiniband/hw/ehca/ehca_mrmw.c b/drivers/infiniband/hw/ehca/ehca_mrmw.c
index 5ca65441e1da..0a5e2214cc5f 100644
--- a/drivers/infiniband/hw/ehca/ehca_mrmw.c
+++ b/drivers/infiniband/hw/ehca/ehca_mrmw.c
@@ -53,7 +53,7 @@ static struct ehca_mr *ehca_mr_new(void)
{
struct ehca_mr *me;
- me = kmem_cache_alloc(mr_cache, SLAB_KERNEL);
+ me = kmem_cache_alloc(mr_cache, GFP_KERNEL);
if (me) {
memset(me, 0, sizeof(struct ehca_mr));
spin_lock_init(&me->mrlock);
@@ -72,7 +72,7 @@ static struct ehca_mw *ehca_mw_new(void)
{
struct ehca_mw *me;
- me = kmem_cache_alloc(mw_cache, SLAB_KERNEL);
+ me = kmem_cache_alloc(mw_cache, GFP_KERNEL);
if (me) {
memset(me, 0, sizeof(struct ehca_mw));
spin_lock_init(&me->mwlock);
@@ -1013,7 +1013,7 @@ int ehca_reg_mr_rpages(struct ehca_shca *shca,
u32 i;
u64 *kpage;
- kpage = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
+ kpage = ehca_alloc_fw_ctrlblock();
if (!kpage) {
ehca_err(&shca->ib_device, "kpage alloc failed");
ret = -ENOMEM;
@@ -1092,7 +1092,7 @@ int ehca_reg_mr_rpages(struct ehca_shca *shca,
ehca_reg_mr_rpages_exit1:
- kfree(kpage);
+ ehca_free_fw_ctrlblock(kpage);
ehca_reg_mr_rpages_exit0:
if (ret)
ehca_err(&shca->ib_device, "ret=%x shca=%p e_mr=%p pginfo=%p "
@@ -1124,7 +1124,7 @@ inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca,
ehca_mrmw_map_acl(acl, &hipz_acl);
ehca_mrmw_set_pgsize_hipz_acl(&hipz_acl);
- kpage = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
+ kpage = ehca_alloc_fw_ctrlblock();
if (!kpage) {
ehca_err(&shca->ib_device, "kpage alloc failed");
ret = -ENOMEM;
@@ -1181,7 +1181,7 @@ inline int ehca_rereg_mr_rereg1(struct ehca_shca *shca,
}
ehca_rereg_mr_rereg1_exit1:
- kfree(kpage);
+ ehca_free_fw_ctrlblock(kpage);
ehca_rereg_mr_rereg1_exit0:
if ( ret && (ret != -EAGAIN) )
ehca_err(&shca->ib_device, "ret=%x lkey=%x rkey=%x "
diff --git a/drivers/infiniband/hw/ehca/ehca_pd.c b/drivers/infiniband/hw/ehca/ehca_pd.c
index 2c3cdc6f7b39..d5345e5b3cd6 100644
--- a/drivers/infiniband/hw/ehca/ehca_pd.c
+++ b/drivers/infiniband/hw/ehca/ehca_pd.c
@@ -50,7 +50,7 @@ struct ib_pd *ehca_alloc_pd(struct ib_device *device,
{
struct ehca_pd *pd;
- pd = kmem_cache_alloc(pd_cache, SLAB_KERNEL);
+ pd = kmem_cache_alloc(pd_cache, GFP_KERNEL);
if (!pd) {
ehca_err(device, "device=%p context=%p out of memory",
device, context);
diff --git a/drivers/infiniband/hw/ehca/ehca_qp.c b/drivers/infiniband/hw/ehca/ehca_qp.c
index 4394123cdbd7..c6c9cef203e3 100644
--- a/drivers/infiniband/hw/ehca/ehca_qp.c
+++ b/drivers/infiniband/hw/ehca/ehca_qp.c
@@ -450,7 +450,7 @@ struct ib_qp *ehca_create_qp(struct ib_pd *pd,
if (pd->uobject && udata)
context = pd->uobject->context;
- my_qp = kmem_cache_alloc(qp_cache, SLAB_KERNEL);
+ my_qp = kmem_cache_alloc(qp_cache, GFP_KERNEL);
if (!my_qp) {
ehca_err(pd->device, "pd=%p not enough memory to alloc qp", pd);
return ERR_PTR(-ENOMEM);
@@ -732,8 +732,7 @@ static int prepare_sqe_rts(struct ehca_qp *my_qp, struct ehca_shca *shca,
u64 h_ret;
struct ipz_queue *squeue;
void *bad_send_wqe_p, *bad_send_wqe_v;
- void *squeue_start_p, *squeue_end_p;
- void *squeue_start_v, *squeue_end_v;
+ u64 q_ofs;
struct ehca_wqe *wqe;
int qp_num = my_qp->ib_qp.qp_num;
@@ -755,26 +754,23 @@ static int prepare_sqe_rts(struct ehca_qp *my_qp, struct ehca_shca *shca,
if (ehca_debug_level)
ehca_dmp(bad_send_wqe_v, 32, "qp_num=%x bad_wqe", qp_num);
squeue = &my_qp->ipz_squeue;
- squeue_start_p = (void*)virt_to_abs(ipz_qeit_calc(squeue, 0L));
- squeue_end_p = squeue_start_p+squeue->queue_length;
- squeue_start_v = abs_to_virt((u64)squeue_start_p);
- squeue_end_v = abs_to_virt((u64)squeue_end_p);
- ehca_dbg(&shca->ib_device, "qp_num=%x squeue_start_v=%p squeue_end_v=%p",
- qp_num, squeue_start_v, squeue_end_v);
+ if (ipz_queue_abs_to_offset(squeue, (u64)bad_send_wqe_p, &q_ofs)) {
+ ehca_err(&shca->ib_device, "failed to get wqe offset qp_num=%x"
+ " bad_send_wqe_p=%p", qp_num, bad_send_wqe_p);
+ return -EFAULT;
+ }
/* loop sets wqe's purge bit */
- wqe = (struct ehca_wqe*)bad_send_wqe_v;
+ wqe = (struct ehca_wqe*)ipz_qeit_calc(squeue, q_ofs);
*bad_wqe_cnt = 0;
while (wqe->optype != 0xff && wqe->wqef != 0xff) {
if (ehca_debug_level)
ehca_dmp(wqe, 32, "qp_num=%x wqe", qp_num);
wqe->nr_of_data_seg = 0; /* suppress data access */
wqe->wqef = WQEF_PURGE; /* WQE to be purged */
- wqe = (struct ehca_wqe*)((u8*)wqe+squeue->qe_size);
+ q_ofs = ipz_queue_advance_offset(squeue, q_ofs);
+ wqe = (struct ehca_wqe*)ipz_qeit_calc(squeue, q_ofs);
*bad_wqe_cnt = (*bad_wqe_cnt)+1;
- if ((void*)wqe >= squeue_end_v) {
- wqe = squeue_start_v;
- }
}
/*
* bad wqe will be reprocessed and ignored when pol_cq() is called,
@@ -811,8 +807,8 @@ static int internal_modify_qp(struct ib_qp *ibqp,
unsigned long spl_flags = 0;
/* do query_qp to obtain current attr values */
- mqpcb = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL);
- if (mqpcb == NULL) {
+ mqpcb = ehca_alloc_fw_ctrlblock();
+ if (!mqpcb) {
ehca_err(ibqp->device, "Could not get zeroed page for mqpcb "
"ehca_qp=%p qp_num=%x ", my_qp, ibqp->qp_num);
return -ENOMEM;
@@ -1225,7 +1221,7 @@ modify_qp_exit2:
}
modify_qp_exit1:
- kfree(mqpcb);
+ ehca_free_fw_ctrlblock(mqpcb);
return ret;
}
@@ -1277,7 +1273,7 @@ int ehca_query_qp(struct ib_qp *qp,
return -EINVAL;
}
- qpcb = kzalloc(H_CB_ALIGNMENT, GFP_KERNEL );
+ qpcb = ehca_alloc_fw_ctrlblock();
if (!qpcb) {
ehca_err(qp->device,"Out of memory for qpcb "
"ehca_qp=%p qp_num=%x", my_qp, qp->qp_num);
@@ -1401,7 +1397,7 @@ int ehca_query_qp(struct ib_qp *qp,
ehca_dmp(qpcb, 4*70, "qp_num=%x", qp->qp_num);
query_qp_exit1:
- kfree(qpcb);
+ ehca_free_fw_ctrlblock(qpcb);
return ret;
}
diff --git a/drivers/infiniband/hw/ehca/hipz_hw.h b/drivers/infiniband/hw/ehca/hipz_hw.h
index 3fc92b031c50..fad91368dc5a 100644
--- a/drivers/infiniband/hw/ehca/hipz_hw.h
+++ b/drivers/infiniband/hw/ehca/hipz_hw.h
@@ -45,6 +45,8 @@
#include "ehca_tools.h"
+#define EHCA_MAX_MTU 4
+
/* QP Table Entry Memory Map */
struct hipz_qptemm {
u64 qpx_hcr;
diff --git a/drivers/infiniband/hw/ehca/ipz_pt_fn.c b/drivers/infiniband/hw/ehca/ipz_pt_fn.c
index e028ff1588cc..bf7a40088f61 100644
--- a/drivers/infiniband/hw/ehca/ipz_pt_fn.c
+++ b/drivers/infiniband/hw/ehca/ipz_pt_fn.c
@@ -70,6 +70,19 @@ void *ipz_qeit_eq_get_inc(struct ipz_queue *queue)
return ret;
}
+int ipz_queue_abs_to_offset(struct ipz_queue *queue, u64 addr, u64 *q_offset)
+{
+ int i;
+ for (i = 0; i < queue->queue_length / queue->pagesize; i++) {
+ u64 page = (u64)virt_to_abs(queue->queue_pages[i]);
+ if (addr >= page && addr < page + queue->pagesize) {
+ *q_offset = addr - page + i * queue->pagesize;
+ return 0;
+ }
+ }
+ return -EINVAL;
+}
+
int ipz_queue_ctor(struct ipz_queue *queue,
const u32 nr_of_pages,
const u32 pagesize, const u32 qe_size, const u32 nr_of_sg)
diff --git a/drivers/infiniband/hw/ehca/ipz_pt_fn.h b/drivers/infiniband/hw/ehca/ipz_pt_fn.h
index 2f13509d5257..dc3bda2634b7 100644
--- a/drivers/infiniband/hw/ehca/ipz_pt_fn.h
+++ b/drivers/infiniband/hw/ehca/ipz_pt_fn.h
@@ -150,6 +150,21 @@ static inline void *ipz_qeit_reset(struct ipz_queue *queue)
return ipz_qeit_get(queue);
}
+/*
+ * return the q_offset corresponding to an absolute address
+ */
+int ipz_queue_abs_to_offset(struct ipz_queue *queue, u64 addr, u64 *q_offset);
+
+/*
+ * return the next queue offset. don't modify the queue.
+ */
+static inline u64 ipz_queue_advance_offset(struct ipz_queue *queue, u64 offset)
+{
+ offset += queue->qe_size;
+ if (offset >= queue->queue_length) offset = 0;
+ return offset;
+}
+
/* struct generic page table */
struct ipz_pt {
u64 entries[EHCA_PT_ENTRIES];
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-30 11:29:55 +0300