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Message-Id: <6655fe696aefc4647fc4db9ba2d2c48e1a7bbe87.1512705841.git.rahul.lakkireddy@chelsio.com>
Date: Fri, 8 Dec 2017 09:48:38 +0530
From: Rahul Lakkireddy <rahul.lakkireddy@...lsio.com>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, ganeshgr@...lsio.com, nirranjan@...lsio.com,
indranil@...lsio.com,
Rahul Lakkireddy <rahul.lakkireddy@...lsio.com>
Subject: [PATCH net-next v2 3/6] cxgb4: collect HMA memory dump
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@...lsio.com>
Signed-off-by: Ganesh Goudar <ganeshgr@...lsio.com>
---
v2:
- No changes.
drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h | 1 +
drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h | 1 +
drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c | 22 ++++++++++++++++++++++
drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.h | 3 +++
drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 3 ++-
drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c | 12 ++++++++++++
drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c | 2 +-
drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 7 +++++--
drivers/net/ethernet/chelsio/cxgb4/t4_regs.h | 4 ++++
9 files changed, 51 insertions(+), 4 deletions(-)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h b/drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h
index 57417f76d4a8..880b1cb5b463 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cudbg_entity.h
@@ -23,6 +23,7 @@
#define MC_FLAG 2
#define MC0_FLAG 3
#define MC1_FLAG 4
+#define HMA_FLAG 5
#define CUDBG_ENTITY_SIGNATURE 0xCCEDB001
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h b/drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h
index 200ff82a213c..69e2c1578b64 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cudbg_if.h
@@ -77,6 +77,7 @@ enum cudbg_dbg_entity_type {
CUDBG_PBT_TABLE = 65,
CUDBG_MBOX_LOG = 66,
CUDBG_HMA_INDIRECT = 67,
+ CUDBG_HMA = 68,
CUDBG_MAX_ENTITY = 70,
};
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c
index 2fb27e9f0bce..4e87218d4476 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.c
@@ -169,6 +169,17 @@ int cudbg_fill_meminfo(struct adapter *padap,
meminfo_buff->avail[i].idx = 2;
i++;
}
+
+ if (lo & HMA_MUX_F) {
+ hi = t4_read_reg(padap, MA_EXT_MEMORY1_BAR_A);
+ meminfo_buff->avail[i].base =
+ cudbg_mbytes_to_bytes(EXT_MEM1_BASE_G(hi));
+ meminfo_buff->avail[i].limit =
+ meminfo_buff->avail[i].base +
+ cudbg_mbytes_to_bytes(EXT_MEM1_SIZE_G(hi));
+ meminfo_buff->avail[i].idx = 5;
+ i++;
+ }
}
if (!i) /* no memory available */
@@ -702,6 +713,9 @@ static int cudbg_meminfo_get_mem_index(struct adapter *padap,
case MEM_MC1:
flag = MC1_FLAG;
break;
+ case MEM_HMA:
+ flag = HMA_FLAG;
+ break;
default:
return CUDBG_STATUS_ENTITY_NOT_FOUND;
}
@@ -835,6 +849,14 @@ int cudbg_collect_mc1_meminfo(struct cudbg_init *pdbg_init,
MEM_MC1);
}
+int cudbg_collect_hma_meminfo(struct cudbg_init *pdbg_init,
+ struct cudbg_buffer *dbg_buff,
+ struct cudbg_error *cudbg_err)
+{
+ return cudbg_collect_mem_region(pdbg_init, dbg_buff, cudbg_err,
+ MEM_HMA);
+}
+
int cudbg_collect_rss(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.h b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.h
index 8bd3d49e712e..18742e5a4399 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cudbg_lib.h
@@ -165,6 +165,9 @@ int cudbg_collect_mbox_log(struct cudbg_init *pdbg_init,
int cudbg_collect_hma_indirect(struct cudbg_init *pdbg_init,
struct cudbg_buffer *dbg_buff,
struct cudbg_error *cudbg_err);
+int cudbg_collect_hma_meminfo(struct cudbg_init *pdbg_init,
+ struct cudbg_buffer *dbg_buff,
+ struct cudbg_error *cudbg_err);
struct cudbg_entity_hdr *cudbg_get_entity_hdr(void *outbuf, int i);
void cudbg_align_debug_buffer(struct cudbg_buffer *dbg_buff,
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index 6f9fa6e3c42a..e680beed9030 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -77,7 +77,8 @@ enum {
MEM_EDC1,
MEM_MC,
MEM_MC0 = MEM_MC,
- MEM_MC1
+ MEM_MC1,
+ MEM_HMA,
};
enum {
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c
index 389458cb69a8..273316f4a20d 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_cudbg.c
@@ -24,6 +24,7 @@ static const struct cxgb4_collect_entity cxgb4_collect_mem_dump[] = {
{ CUDBG_EDC1, cudbg_collect_edc1_meminfo },
{ CUDBG_MC0, cudbg_collect_mc0_meminfo },
{ CUDBG_MC1, cudbg_collect_mc1_meminfo },
+ { CUDBG_HMA, cudbg_collect_hma_meminfo },
};
static const struct cxgb4_collect_entity cxgb4_collect_hw_dump[] = {
@@ -285,6 +286,17 @@ static u32 cxgb4_get_entity_length(struct adapter *adap, u32 entity)
len = sizeof(struct ireg_buf) * n;
}
break;
+ case CUDBG_HMA:
+ value = t4_read_reg(adap, MA_TARGET_MEM_ENABLE_A);
+ if (value & HMA_MUX_F) {
+ /* In T6, there's no MC1. So, HMA shares MC1
+ * address space.
+ */
+ value = t4_read_reg(adap, MA_EXT_MEMORY1_BAR_A);
+ len = EXT_MEM1_SIZE_G(value);
+ }
+ len = cudbg_mbytes_to_bytes(len);
+ break;
default:
break;
}
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
index c6732683cb8c..4956e429ae1d 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
@@ -2811,7 +2811,7 @@ static void mem_region_show(struct seq_file *seq, const char *name,
static int meminfo_show(struct seq_file *seq, void *v)
{
static const char * const memory[] = { "EDC0:", "EDC1:", "MC:",
- "MC0:", "MC1:"};
+ "MC0:", "MC1:", "HMA:"};
struct adapter *adap = seq->private;
struct cudbg_meminfo meminfo;
int i, rc;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index f63210f15579..ccb2798c34d1 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -524,11 +524,14 @@ int t4_memory_rw(struct adapter *adap, int win, int mtype, u32 addr,
* MEM_EDC1 = 1
* MEM_MC = 2 -- MEM_MC for chips with only 1 memory controller
* MEM_MC1 = 3 -- for chips with 2 memory controllers (e.g. T5)
+ * MEM_HMA = 4
*/
edc_size = EDRAM0_SIZE_G(t4_read_reg(adap, MA_EDRAM0_BAR_A));
- if (mtype != MEM_MC1)
+ if (mtype == MEM_HMA) {
+ memoffset = 2 * (edc_size * 1024 * 1024);
+ } else if (mtype != MEM_MC1) {
memoffset = (mtype * (edc_size * 1024 * 1024));
- else {
+ } else {
mc_size = EXT_MEM0_SIZE_G(t4_read_reg(adap,
MA_EXT_MEMORY0_BAR_A));
memoffset = (MEM_MC0 * edc_size + mc_size) * 1024 * 1024;
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
index a7cfece72828..f6701e0a6701 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
@@ -961,6 +961,10 @@
#define MA_EXT_MEMORY1_BAR_A 0x7808
+#define HMA_MUX_S 5
+#define HMA_MUX_V(x) ((x) << HMA_MUX_S)
+#define HMA_MUX_F HMA_MUX_V(1U)
+
#define EXT_MEM1_BASE_S 16
#define EXT_MEM1_BASE_M 0xfffU
#define EXT_MEM1_BASE_G(x) (((x) >> EXT_MEM1_BASE_S) & EXT_MEM1_BASE_M)
--
2.14.1
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