* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
+#include <linux/mm.h>
#include "ehea.h"
#include "ehea_phyp.h"
#include "ehea_qmr.h"
+struct ehea_bmap *ehea_bmap = NULL;
+
+
+
static void *hw_qpageit_get_inc(struct hw_queue *queue)
{
void *retvalue = hw_qeit_get(queue);
}
queue->queue_length = nr_of_pages * pagesize;
- queue->queue_pages = kmalloc(nr_of_pages * sizeof(void*), GFP_KERNEL);
+ queue->queue_pages = kmalloc(nr_of_pages * sizeof(void *), GFP_KERNEL);
if (!queue->queue_pages) {
ehea_error("no mem for queue_pages");
return -ENOMEM;
*/
i = 0;
while (i < nr_of_pages) {
- u8 *kpage = (u8*)get_zeroed_page(GFP_KERNEL);
+ u8 *kpage = (u8 *)get_zeroed_page(GFP_KERNEL);
if (!kpage)
goto out_nomem;
for (k = 0; k < pages_per_kpage && i < nr_of_pages; k++) {
- (queue->queue_pages)[i] = (struct ehea_page*)kpage;
+ (queue->queue_pages)[i] = (struct ehea_page *)kpage;
kpage += pagesize;
i++;
}
cq->fw_handle, rpage, 1);
if (hret < H_SUCCESS) {
ehea_error("register_rpage_cq failed ehea_cq=%p "
- "hret=%lx counter=%i act_pages=%i",
+ "hret=%llx counter=%i act_pages=%i",
cq, hret, counter, cq->attr.nr_pages);
goto out_kill_hwq;
}
if ((hret != H_SUCCESS) || (vpage)) {
ehea_error("registration of pages not "
- "complete hret=%lx\n", hret);
+ "complete hret=%llx\n", hret);
goto out_kill_hwq;
}
} else {
- if ((hret != H_PAGE_REGISTERED) || (!vpage)) {
+ if (hret != H_PAGE_REGISTERED) {
ehea_error("CQ: registration of page failed "
- "hret=%lx\n", hret);
+ "hret=%llx\n", hret);
goto out_kill_hwq;
}
}
hw_queue_dtor(&cq->hw_queue);
out_freeres:
- ehea_h_free_resource(adapter->handle, cq->fw_handle);
+ ehea_h_free_resource(adapter->handle, cq->fw_handle, FORCE_FREE);
out_freemem:
kfree(cq);
return NULL;
}
-int ehea_destroy_cq(struct ehea_cq *cq)
+u64 ehea_destroy_cq_res(struct ehea_cq *cq, u64 force)
{
- u64 adapter_handle, hret;
+ u64 hret;
+ u64 adapter_handle = cq->adapter->handle;
+
+ /* deregister all previous registered pages */
+ hret = ehea_h_free_resource(adapter_handle, cq->fw_handle, force);
+ if (hret != H_SUCCESS)
+ return hret;
+ hw_queue_dtor(&cq->hw_queue);
+ kfree(cq);
+
+ return hret;
+}
+
+int ehea_destroy_cq(struct ehea_cq *cq)
+{
+ u64 hret;
if (!cq)
return 0;
- adapter_handle = cq->adapter->handle;
+ hcp_epas_dtor(&cq->epas);
+ hret = ehea_destroy_cq_res(cq, NORMAL_FREE);
+ if (hret == H_R_STATE) {
+ ehea_error_data(cq->adapter, cq->fw_handle);
+ hret = ehea_destroy_cq_res(cq, FORCE_FREE);
+ }
- /* deregister all previous registered pages */
- hret = ehea_h_free_resource(adapter_handle, cq->fw_handle);
if (hret != H_SUCCESS) {
ehea_error("destroy CQ failed");
return -EIO;
}
- hw_queue_dtor(&cq->hw_queue);
- kfree(cq);
-
return 0;
}
if (i == (eq->attr.nr_pages - 1)) {
/* last page */
vpage = hw_qpageit_get_inc(&eq->hw_queue);
- if ((hret != H_SUCCESS) || (vpage)) {
+ if ((hret != H_SUCCESS) || (vpage))
goto out_kill_hwq;
- }
+
} else {
- if ((hret != H_PAGE_REGISTERED) || (!vpage)) {
+ if (hret != H_PAGE_REGISTERED)
goto out_kill_hwq;
- }
+
}
}
hw_queue_dtor(&eq->hw_queue);
out_freeres:
- ehea_h_free_resource(adapter->handle, eq->fw_handle);
+ ehea_h_free_resource(adapter->handle, eq->fw_handle, FORCE_FREE);
out_freemem:
kfree(eq);
unsigned long flags;
spin_lock_irqsave(&eq->spinlock, flags);
- eqe = (struct ehea_eqe*)hw_eqit_eq_get_inc_valid(&eq->hw_queue);
+ eqe = (struct ehea_eqe *)hw_eqit_eq_get_inc_valid(&eq->hw_queue);
spin_unlock_irqrestore(&eq->spinlock, flags);
return eqe;
}
-int ehea_destroy_eq(struct ehea_eq *eq)
+u64 ehea_destroy_eq_res(struct ehea_eq *eq, u64 force)
{
u64 hret;
unsigned long flags;
+ spin_lock_irqsave(&eq->spinlock, flags);
+
+ hret = ehea_h_free_resource(eq->adapter->handle, eq->fw_handle, force);
+ spin_unlock_irqrestore(&eq->spinlock, flags);
+
+ if (hret != H_SUCCESS)
+ return hret;
+
+ hw_queue_dtor(&eq->hw_queue);
+ kfree(eq);
+
+ return hret;
+}
+
+int ehea_destroy_eq(struct ehea_eq *eq)
+{
+ u64 hret;
if (!eq)
return 0;
- spin_lock_irqsave(&eq->spinlock, flags);
+ hcp_epas_dtor(&eq->epas);
- hret = ehea_h_free_resource(eq->adapter->handle, eq->fw_handle);
- spin_unlock_irqrestore(&eq->spinlock, flags);
+ hret = ehea_destroy_eq_res(eq, NORMAL_FREE);
+ if (hret == H_R_STATE) {
+ ehea_error_data(eq->adapter, eq->fw_handle);
+ hret = ehea_destroy_eq_res(eq, FORCE_FREE);
+ }
if (hret != H_SUCCESS) {
- ehea_error("destroy_eq failed");
+ ehea_error("destroy EQ failed");
return -EIO;
}
- hw_queue_dtor(&eq->hw_queue);
- kfree(eq);
-
return 0;
}
out_freeres:
ehea_h_disable_and_get_hea(adapter->handle, qp->fw_handle);
- ehea_h_free_resource(adapter->handle, qp->fw_handle);
+ ehea_h_free_resource(adapter->handle, qp->fw_handle, FORCE_FREE);
out_freemem:
kfree(qp);
return NULL;
}
-int ehea_destroy_qp(struct ehea_qp *qp)
+u64 ehea_destroy_qp_res(struct ehea_qp *qp, u64 force)
{
u64 hret;
struct ehea_qp_init_attr *qp_attr = &qp->init_attr;
- if (!qp)
- return 0;
- hret = ehea_h_free_resource(qp->adapter->handle, qp->fw_handle);
- if (hret != H_SUCCESS) {
- ehea_error("destroy_qp failed");
- return -EIO;
- }
+ ehea_h_disable_and_get_hea(qp->adapter->handle, qp->fw_handle);
+ hret = ehea_h_free_resource(qp->adapter->handle, qp->fw_handle, force);
+ if (hret != H_SUCCESS)
+ return hret;
hw_queue_dtor(&qp->hw_squeue);
hw_queue_dtor(&qp->hw_rqueue1);
- if (qp_attr->rq_count > 1)
+ if (qp_attr->rq_count > 1)
hw_queue_dtor(&qp->hw_rqueue2);
- if (qp_attr->rq_count > 2)
+ if (qp_attr->rq_count > 2)
hw_queue_dtor(&qp->hw_rqueue3);
kfree(qp);
+ return hret;
+}
+
+int ehea_destroy_qp(struct ehea_qp *qp)
+{
+ u64 hret;
+ if (!qp)
+ return 0;
+
+ hcp_epas_dtor(&qp->epas);
+
+ hret = ehea_destroy_qp_res(qp, NORMAL_FREE);
+ if (hret == H_R_STATE) {
+ ehea_error_data(qp->adapter, qp->fw_handle);
+ hret = ehea_destroy_qp_res(qp, FORCE_FREE);
+ }
+
+ if (hret != H_SUCCESS) {
+ ehea_error("destroy QP failed");
+ return -EIO;
+ }
+
return 0;
}
-int ehea_reg_mr_adapter(struct ehea_adapter *adapter)
+static inline int ehea_calc_index(unsigned long i, unsigned long s)
{
- int i, k, ret;
- u64 hret, pt_abs, start, end, nr_pages;
- u32 acc_ctrl = EHEA_MR_ACC_CTRL;
+ return (i >> s) & EHEA_INDEX_MASK;
+}
+
+static inline int ehea_init_top_bmap(struct ehea_top_bmap *ehea_top_bmap,
+ int dir)
+{
+ if (!ehea_top_bmap->dir[dir]) {
+ ehea_top_bmap->dir[dir] =
+ kzalloc(sizeof(struct ehea_dir_bmap), GFP_KERNEL);
+ if (!ehea_top_bmap->dir[dir])
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+static inline int ehea_init_bmap(struct ehea_bmap *ehea_bmap, int top, int dir)
+{
+ if (!ehea_bmap->top[top]) {
+ ehea_bmap->top[top] =
+ kzalloc(sizeof(struct ehea_top_bmap), GFP_KERNEL);
+ if (!ehea_bmap->top[top])
+ return -ENOMEM;
+ }
+ return ehea_init_top_bmap(ehea_bmap->top[top], dir);
+}
+
+static DEFINE_MUTEX(ehea_busmap_mutex);
+static unsigned long ehea_mr_len;
+
+#define EHEA_BUSMAP_ADD_SECT 1
+#define EHEA_BUSMAP_REM_SECT 0
+
+static void ehea_rebuild_busmap(void)
+{
+ u64 vaddr = EHEA_BUSMAP_START;
+ int top, dir, idx;
+
+ for (top = 0; top < EHEA_MAP_ENTRIES; top++) {
+ struct ehea_top_bmap *ehea_top;
+ int valid_dir_entries = 0;
+
+ if (!ehea_bmap->top[top])
+ continue;
+ ehea_top = ehea_bmap->top[top];
+ for (dir = 0; dir < EHEA_MAP_ENTRIES; dir++) {
+ struct ehea_dir_bmap *ehea_dir;
+ int valid_entries = 0;
+
+ if (!ehea_top->dir[dir])
+ continue;
+ valid_dir_entries++;
+ ehea_dir = ehea_top->dir[dir];
+ for (idx = 0; idx < EHEA_MAP_ENTRIES; idx++) {
+ if (!ehea_dir->ent[idx])
+ continue;
+ valid_entries++;
+ ehea_dir->ent[idx] = vaddr;
+ vaddr += EHEA_SECTSIZE;
+ }
+ if (!valid_entries) {
+ ehea_top->dir[dir] = NULL;
+ kfree(ehea_dir);
+ }
+ }
+ if (!valid_dir_entries) {
+ ehea_bmap->top[top] = NULL;
+ kfree(ehea_top);
+ }
+ }
+}
+
+static int ehea_update_busmap(unsigned long pfn, unsigned long nr_pages, int add)
+{
+ unsigned long i, start_section, end_section;
+
+ if (!nr_pages)
+ return 0;
+
+ if (!ehea_bmap) {
+ ehea_bmap = kzalloc(sizeof(struct ehea_bmap), GFP_KERNEL);
+ if (!ehea_bmap)
+ return -ENOMEM;
+ }
+
+ start_section = (pfn * PAGE_SIZE) / EHEA_SECTSIZE;
+ end_section = start_section + ((nr_pages * PAGE_SIZE) / EHEA_SECTSIZE);
+ /* Mark entries as valid or invalid only; address is assigned later */
+ for (i = start_section; i < end_section; i++) {
+ u64 flag;
+ int top = ehea_calc_index(i, EHEA_TOP_INDEX_SHIFT);
+ int dir = ehea_calc_index(i, EHEA_DIR_INDEX_SHIFT);
+ int idx = i & EHEA_INDEX_MASK;
+
+ if (add) {
+ int ret = ehea_init_bmap(ehea_bmap, top, dir);
+ if (ret)
+ return ret;
+ flag = 1; /* valid */
+ ehea_mr_len += EHEA_SECTSIZE;
+ } else {
+ if (!ehea_bmap->top[top])
+ continue;
+ if (!ehea_bmap->top[top]->dir[dir])
+ continue;
+ flag = 0; /* invalid */
+ ehea_mr_len -= EHEA_SECTSIZE;
+ }
+
+ ehea_bmap->top[top]->dir[dir]->ent[idx] = flag;
+ }
+ ehea_rebuild_busmap(); /* Assign contiguous addresses for mr */
+ return 0;
+}
+
+int ehea_add_sect_bmap(unsigned long pfn, unsigned long nr_pages)
+{
+ int ret;
+
+ mutex_lock(&ehea_busmap_mutex);
+ ret = ehea_update_busmap(pfn, nr_pages, EHEA_BUSMAP_ADD_SECT);
+ mutex_unlock(&ehea_busmap_mutex);
+ return ret;
+}
+
+int ehea_rem_sect_bmap(unsigned long pfn, unsigned long nr_pages)
+{
+ int ret;
+
+ mutex_lock(&ehea_busmap_mutex);
+ ret = ehea_update_busmap(pfn, nr_pages, EHEA_BUSMAP_REM_SECT);
+ mutex_unlock(&ehea_busmap_mutex);
+ return ret;
+}
+
+static int ehea_is_hugepage(unsigned long pfn)
+{
+ int page_order;
+
+ if (pfn & EHEA_HUGEPAGE_PFN_MASK)
+ return 0;
+
+ page_order = compound_order(pfn_to_page(pfn));
+ if (page_order + PAGE_SHIFT != EHEA_HUGEPAGESHIFT)
+ return 0;
+
+ return 1;
+}
+
+static int ehea_create_busmap_callback(unsigned long initial_pfn,
+ unsigned long total_nr_pages, void *arg)
+{
+ int ret;
+ unsigned long pfn, start_pfn, end_pfn, nr_pages;
+
+ if ((total_nr_pages * PAGE_SIZE) < EHEA_HUGEPAGE_SIZE)
+ return ehea_update_busmap(initial_pfn, total_nr_pages,
+ EHEA_BUSMAP_ADD_SECT);
+
+ /* Given chunk is >= 16GB -> check for hugepages */
+ start_pfn = initial_pfn;
+ end_pfn = initial_pfn + total_nr_pages;
+ pfn = start_pfn;
+
+ while (pfn < end_pfn) {
+ if (ehea_is_hugepage(pfn)) {
+ /* Add mem found in front of the hugepage */
+ nr_pages = pfn - start_pfn;
+ ret = ehea_update_busmap(start_pfn, nr_pages,
+ EHEA_BUSMAP_ADD_SECT);
+ if (ret)
+ return ret;
+
+ /* Skip the hugepage */
+ pfn += (EHEA_HUGEPAGE_SIZE / PAGE_SIZE);
+ start_pfn = pfn;
+ } else
+ pfn += (EHEA_SECTSIZE / PAGE_SIZE);
+ }
+
+ /* Add mem found behind the hugepage(s) */
+ nr_pages = pfn - start_pfn;
+ return ehea_update_busmap(start_pfn, nr_pages, EHEA_BUSMAP_ADD_SECT);
+}
+
+int ehea_create_busmap(void)
+{
+ int ret;
+
+ mutex_lock(&ehea_busmap_mutex);
+ ehea_mr_len = 0;
+ ret = walk_system_ram_range(0, 1ULL << MAX_PHYSMEM_BITS, NULL,
+ ehea_create_busmap_callback);
+ mutex_unlock(&ehea_busmap_mutex);
+ return ret;
+}
+
+void ehea_destroy_busmap(void)
+{
+ int top, dir;
+ mutex_lock(&ehea_busmap_mutex);
+ if (!ehea_bmap)
+ goto out_destroy;
+
+ for (top = 0; top < EHEA_MAP_ENTRIES; top++) {
+ if (!ehea_bmap->top[top])
+ continue;
+
+ for (dir = 0; dir < EHEA_MAP_ENTRIES; dir++) {
+ if (!ehea_bmap->top[top]->dir[dir])
+ continue;
+
+ kfree(ehea_bmap->top[top]->dir[dir]);
+ }
+
+ kfree(ehea_bmap->top[top]);
+ }
+
+ kfree(ehea_bmap);
+ ehea_bmap = NULL;
+out_destroy:
+ mutex_unlock(&ehea_busmap_mutex);
+}
+
+u64 ehea_map_vaddr(void *caddr)
+{
+ int top, dir, idx;
+ unsigned long index, offset;
+
+ if (!ehea_bmap)
+ return EHEA_INVAL_ADDR;
+
+ index = virt_to_abs(caddr) >> SECTION_SIZE_BITS;
+ top = (index >> EHEA_TOP_INDEX_SHIFT) & EHEA_INDEX_MASK;
+ if (!ehea_bmap->top[top])
+ return EHEA_INVAL_ADDR;
+
+ dir = (index >> EHEA_DIR_INDEX_SHIFT) & EHEA_INDEX_MASK;
+ if (!ehea_bmap->top[top]->dir[dir])
+ return EHEA_INVAL_ADDR;
+
+ idx = index & EHEA_INDEX_MASK;
+ if (!ehea_bmap->top[top]->dir[dir]->ent[idx])
+ return EHEA_INVAL_ADDR;
+
+ offset = (unsigned long)caddr & (EHEA_SECTSIZE - 1);
+ return ehea_bmap->top[top]->dir[dir]->ent[idx] | offset;
+}
+
+static inline void *ehea_calc_sectbase(int top, int dir, int idx)
+{
+ unsigned long ret = idx;
+ ret |= dir << EHEA_DIR_INDEX_SHIFT;
+ ret |= top << EHEA_TOP_INDEX_SHIFT;
+ return abs_to_virt(ret << SECTION_SIZE_BITS);
+}
+
+static u64 ehea_reg_mr_section(int top, int dir, int idx, u64 *pt,
+ struct ehea_adapter *adapter,
+ struct ehea_mr *mr)
+{
+ void *pg;
+ u64 j, m, hret;
+ unsigned long k = 0;
+ u64 pt_abs = virt_to_abs(pt);
+
+ void *sectbase = ehea_calc_sectbase(top, dir, idx);
+
+ for (j = 0; j < (EHEA_PAGES_PER_SECTION / EHEA_MAX_RPAGE); j++) {
+
+ for (m = 0; m < EHEA_MAX_RPAGE; m++) {
+ pg = sectbase + ((k++) * EHEA_PAGESIZE);
+ pt[m] = virt_to_abs(pg);
+ }
+ hret = ehea_h_register_rpage_mr(adapter->handle, mr->handle, 0,
+ 0, pt_abs, EHEA_MAX_RPAGE);
+
+ if ((hret != H_SUCCESS) &&
+ (hret != H_PAGE_REGISTERED)) {
+ ehea_h_free_resource(adapter->handle, mr->handle,
+ FORCE_FREE);
+ ehea_error("register_rpage_mr failed");
+ return hret;
+ }
+ }
+ return hret;
+}
+
+static u64 ehea_reg_mr_sections(int top, int dir, u64 *pt,
+ struct ehea_adapter *adapter,
+ struct ehea_mr *mr)
+{
+ u64 hret = H_SUCCESS;
+ int idx;
+
+ for (idx = 0; idx < EHEA_MAP_ENTRIES; idx++) {
+ if (!ehea_bmap->top[top]->dir[dir]->ent[idx])
+ continue;
+
+ hret = ehea_reg_mr_section(top, dir, idx, pt, adapter, mr);
+ if ((hret != H_SUCCESS) && (hret != H_PAGE_REGISTERED))
+ return hret;
+ }
+ return hret;
+}
+
+static u64 ehea_reg_mr_dir_sections(int top, u64 *pt,
+ struct ehea_adapter *adapter,
+ struct ehea_mr *mr)
+{
+ u64 hret = H_SUCCESS;
+ int dir;
+
+ for (dir = 0; dir < EHEA_MAP_ENTRIES; dir++) {
+ if (!ehea_bmap->top[top]->dir[dir])
+ continue;
+
+ hret = ehea_reg_mr_sections(top, dir, pt, adapter, mr);
+ if ((hret != H_SUCCESS) && (hret != H_PAGE_REGISTERED))
+ return hret;
+ }
+ return hret;
+}
+
+int ehea_reg_kernel_mr(struct ehea_adapter *adapter, struct ehea_mr *mr)
+{
+ int ret;
u64 *pt;
+ u64 hret;
+ u32 acc_ctrl = EHEA_MR_ACC_CTRL;
- start = KERNELBASE;
- end = (u64)high_memory;
- nr_pages = (end - start) / EHEA_PAGESIZE;
+ unsigned long top;
- pt = kzalloc(PAGE_SIZE, GFP_KERNEL);
+ pt = (void *)get_zeroed_page(GFP_KERNEL);
if (!pt) {
ehea_error("no mem");
ret = -ENOMEM;
goto out;
}
- pt_abs = virt_to_abs(pt);
- hret = ehea_h_alloc_resource_mr(adapter->handle, start, end - start,
- acc_ctrl, adapter->pd,
- &adapter->mr.handle, &adapter->mr.lkey);
+ hret = ehea_h_alloc_resource_mr(adapter->handle, EHEA_BUSMAP_START,
+ ehea_mr_len, acc_ctrl, adapter->pd,
+ &mr->handle, &mr->lkey);
+
if (hret != H_SUCCESS) {
ehea_error("alloc_resource_mr failed");
ret = -EIO;
goto out;
}
- adapter->mr.vaddr = KERNELBASE;
- k = 0;
-
- while (nr_pages > 0) {
- if (nr_pages > 1) {
- u64 num_pages = min(nr_pages, (u64)512);
- for (i = 0; i < num_pages; i++)
- pt[i] = virt_to_abs((void*)(((u64)start) +
- ((k++) *
- EHEA_PAGESIZE)));
-
- hret = ehea_h_register_rpage_mr(adapter->handle,
- adapter->mr.handle, 0,
- 0, (u64)pt_abs,
- num_pages);
- nr_pages -= num_pages;
- } else {
- u64 abs_adr = virt_to_abs((void*)(((u64)start) +
- (k * EHEA_PAGESIZE)));
+ if (!ehea_bmap) {
+ ehea_h_free_resource(adapter->handle, mr->handle, FORCE_FREE);
+ ehea_error("no busmap available");
+ ret = -EIO;
+ goto out;
+ }
- hret = ehea_h_register_rpage_mr(adapter->handle,
- adapter->mr.handle, 0,
- 0, abs_adr,1);
- nr_pages--;
- }
+ for (top = 0; top < EHEA_MAP_ENTRIES; top++) {
+ if (!ehea_bmap->top[top])
+ continue;
- if ((hret != H_SUCCESS) && (hret != H_PAGE_REGISTERED)) {
- ehea_h_free_resource(adapter->handle,
- adapter->mr.handle);
- ehea_error("register_rpage_mr failed: hret = %lX",
- hret);
- ret = -EIO;
- goto out;
- }
+ hret = ehea_reg_mr_dir_sections(top, pt, adapter, mr);
+ if((hret != H_PAGE_REGISTERED) && (hret != H_SUCCESS))
+ break;
}
if (hret != H_SUCCESS) {
- ehea_h_free_resource(adapter->handle, adapter->mr.handle);
- ehea_error("register_rpage failed for last page: hret = %lX",
- hret);
+ ehea_h_free_resource(adapter->handle, mr->handle, FORCE_FREE);
+ ehea_error("registering mr failed");
ret = -EIO;
goto out;
}
+
+ mr->vaddr = EHEA_BUSMAP_START;
+ mr->adapter = adapter;
ret = 0;
out:
- kfree(pt);
+ free_page((unsigned long)pt);
return ret;
}
+int ehea_rem_mr(struct ehea_mr *mr)
+{
+ u64 hret;
+
+ if (!mr || !mr->adapter)
+ return -EINVAL;
+
+ hret = ehea_h_free_resource(mr->adapter->handle, mr->handle,
+ FORCE_FREE);
+ if (hret != H_SUCCESS) {
+ ehea_error("destroy MR failed");
+ return -EIO;
+ }
+
+ return 0;
+}
+
+int ehea_gen_smr(struct ehea_adapter *adapter, struct ehea_mr *old_mr,
+ struct ehea_mr *shared_mr)
+{
+ u64 hret;
+
+ hret = ehea_h_register_smr(adapter->handle, old_mr->handle,
+ old_mr->vaddr, EHEA_MR_ACC_CTRL,
+ adapter->pd, shared_mr);
+ if (hret != H_SUCCESS)
+ return -EIO;
+
+ shared_mr->adapter = adapter;
+
+ return 0;
+}
+
+void print_error_data(u64 *data)
+{
+ int length;
+ u64 type = EHEA_BMASK_GET(ERROR_DATA_TYPE, data[2]);
+ u64 resource = data[1];
+
+ length = EHEA_BMASK_GET(ERROR_DATA_LENGTH, data[0]);
+
+ if (length > EHEA_PAGESIZE)
+ length = EHEA_PAGESIZE;
+
+ if (type == 0x8) /* Queue Pair */
+ ehea_error("QP (resource=%llX) state: AER=0x%llX, AERR=0x%llX, "
+ "port=%llX", resource, data[6], data[12], data[22]);
+
+ if (type == 0x4) /* Completion Queue */
+ ehea_error("CQ (resource=%llX) state: AER=0x%llX", resource,
+ data[6]);
+
+ if (type == 0x3) /* Event Queue */
+ ehea_error("EQ (resource=%llX) state: AER=0x%llX", resource,
+ data[6]);
+
+ ehea_dump(data, length, "error data");
+}
+
+void ehea_error_data(struct ehea_adapter *adapter, u64 res_handle)
+{
+ unsigned long ret;
+ u64 *rblock;
+
+ rblock = (void *)get_zeroed_page(GFP_KERNEL);
+ if (!rblock) {
+ ehea_error("Cannot allocate rblock memory.");
+ return;
+ }
+ ret = ehea_h_error_data(adapter->handle,
+ res_handle,
+ rblock);
+
+ if (ret == H_R_STATE)
+ ehea_error("No error data is available: %llX.", res_handle);
+ else if (ret == H_SUCCESS)
+ print_error_data(rblock);
+ else
+ ehea_error("Error data could not be fetched: %llX", res_handle);
+
+ free_page((unsigned long)rblock);
+}
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff