cxgb4: collect on-chip memory dump

[linux.git] / drivers / net / ethernet / chelsio / cxgb4 / cxgb4_cudbg.c

diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c
index 4ec322eec68ca277107b60f3eb970dbf33a122e6..286d172a9c198728be1da05885c18375ad7f166a 100644 (file)
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c
@@ -15,16 +15,22 @@
  *
  */
 
+#include "t4_regs.h"
 #include "cxgb4.h"
 #include "cxgb4_cudbg.h"
 
+static const struct cxgb4_collect_entity cxgb4_collect_mem_dump[] = {
+       { CUDBG_EDC0, cudbg_collect_edc0_meminfo },
+       { CUDBG_EDC1, cudbg_collect_edc1_meminfo },
+};
+
 static const struct cxgb4_collect_entity cxgb4_collect_hw_dump[] = {
        { CUDBG_REG_DUMP, cudbg_collect_reg_dump },
 };
 
 static u32 cxgb4_get_entity_length(struct adapter *adap, u32 entity)
 {
-       u32 len = 0;
+       u32 value, len = 0;
 
        switch (entity) {
        case CUDBG_REG_DUMP:
@@ -40,6 +46,22 @@ static u32 cxgb4_get_entity_length(struct adapter *adap, u32 entity)
                        break;
                }
                break;
+       case CUDBG_EDC0:
+               value = t4_read_reg(adap, MA_TARGET_MEM_ENABLE_A);
+               if (value & EDRAM0_ENABLE_F) {
+                       value = t4_read_reg(adap, MA_EDRAM0_BAR_A);
+                       len = EDRAM0_SIZE_G(value);
+               }
+               len = cudbg_mbytes_to_bytes(len);
+               break;
+       case CUDBG_EDC1:
+               value = t4_read_reg(adap, MA_TARGET_MEM_ENABLE_A);
+               if (value & EDRAM1_ENABLE_F) {
+                       value = t4_read_reg(adap, MA_EDRAM1_BAR_A);
+                       len = EDRAM1_SIZE_G(value);
+               }
+               len = cudbg_mbytes_to_bytes(len);
+               break;
        default:
                break;
        }
@@ -59,6 +81,13 @@ u32 cxgb4_get_dump_length(struct adapter *adap, u32 flag)
                }
        }
 
+       if (flag & CXGB4_ETH_DUMP_MEM) {
+               for (i = 0; i < ARRAY_SIZE(cxgb4_collect_mem_dump); i++) {
+                       entity = cxgb4_collect_mem_dump[i].entity;
+                       len += cxgb4_get_entity_length(adap, entity);
+               }
+       }
+
        return len;
 }
 
@@ -152,6 +181,13 @@ int cxgb4_cudbg_collect(struct adapter *adap, void *buf, u32 *buf_size,
                                           buf,
                                           &total_size);
 
+       if (flag & CXGB4_ETH_DUMP_MEM)
+               cxgb4_cudbg_collect_entity(&cudbg_init, &dbg_buff,
+                                          cxgb4_collect_mem_dump,
+                                          ARRAY_SIZE(cxgb4_collect_mem_dump),
+                                          buf,
+                                          &total_size);
+
        cudbg_hdr->data_len = total_size;
        *buf_size = total_size;
        return 0;