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-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4.h2
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c42
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/t4_hw.c42
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/t4_hw.h1
-rw-r--r--drivers/net/ethernet/chelsio/cxgb4/t4_regs.h17
5 files changed, 104 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index 533a69106513..368b5ad20835 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -1054,6 +1054,8 @@ int t4_mc_read(struct adapter *adap, int idx, u32 addr, __be32 *data,
1054 u64 *parity); 1054 u64 *parity);
1055int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data, 1055int t4_edc_read(struct adapter *adap, int idx, u32 addr, __be32 *data,
1056 u64 *parity); 1056 u64 *parity);
1057int t4_read_cim_ibq(struct adapter *adap, unsigned int qid, u32 *data,
1058 size_t n);
1057int t4_cim_read(struct adapter *adap, unsigned int addr, unsigned int n, 1059int t4_cim_read(struct adapter *adap, unsigned int addr, unsigned int n,
1058 unsigned int *valp); 1060 unsigned int *valp);
1059int t4_cim_write(struct adapter *adap, unsigned int addr, unsigned int n, 1061int t4_cim_write(struct adapter *adap, unsigned int addr, unsigned int n,
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
index eb420e182084..3f4b07ef580e 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
@@ -239,6 +239,42 @@ static const struct file_operations cim_qcfg_fops = {
239 .release = single_release, 239 .release = single_release,
240}; 240};
241 241
242static int cimq_show(struct seq_file *seq, void *v, int idx)
243{
244 const u32 *p = v;
245
246 seq_printf(seq, "%#06x: %08x %08x %08x %08x\n", idx * 16, p[0], p[1],
247 p[2], p[3]);
248 return 0;
249}
250
251static int cim_ibq_open(struct inode *inode, struct file *file)
252{
253 int ret;
254 struct seq_tab *p;
255 unsigned int qid = (uintptr_t)inode->i_private & 7;
256 struct adapter *adap = inode->i_private - qid;
257
258 p = seq_open_tab(file, CIM_IBQ_SIZE, 4 * sizeof(u32), 0, cimq_show);
259 if (!p)
260 return -ENOMEM;
261
262 ret = t4_read_cim_ibq(adap, qid, (u32 *)p->data, CIM_IBQ_SIZE * 4);
263 if (ret < 0)
264 seq_release_private(inode, file);
265 else
266 ret = 0;
267 return ret;
268}
269
270static const struct file_operations cim_ibq_fops = {
271 .owner = THIS_MODULE,
272 .open = cim_ibq_open,
273 .read = seq_read,
274 .llseek = seq_lseek,
275 .release = seq_release_private
276};
277
242/* Firmware Device Log dump. */ 278/* Firmware Device Log dump. */
243static const char * const devlog_level_strings[] = { 279static const char * const devlog_level_strings[] = {
244 [FW_DEVLOG_LEVEL_EMERG] = "EMERG", 280 [FW_DEVLOG_LEVEL_EMERG] = "EMERG",
@@ -1346,6 +1382,12 @@ int t4_setup_debugfs(struct adapter *adap)
1346 { "rss_pf_config", &rss_pf_config_debugfs_fops, S_IRUSR, 0 }, 1382 { "rss_pf_config", &rss_pf_config_debugfs_fops, S_IRUSR, 0 },
1347 { "rss_vf_config", &rss_vf_config_debugfs_fops, S_IRUSR, 0 }, 1383 { "rss_vf_config", &rss_vf_config_debugfs_fops, S_IRUSR, 0 },
1348 { "sge_qinfo", &sge_qinfo_debugfs_fops, S_IRUSR, 0 }, 1384 { "sge_qinfo", &sge_qinfo_debugfs_fops, S_IRUSR, 0 },
1385 { "ibq_tp0", &cim_ibq_fops, S_IRUSR, 0 },
1386 { "ibq_tp1", &cim_ibq_fops, S_IRUSR, 1 },
1387 { "ibq_ulp", &cim_ibq_fops, S_IRUSR, 2 },
1388 { "ibq_sge0", &cim_ibq_fops, S_IRUSR, 3 },
1389 { "ibq_sge1", &cim_ibq_fops, S_IRUSR, 4 },
1390 { "ibq_ncsi", &cim_ibq_fops, S_IRUSR, 5 },
1349#if IS_ENABLED(CONFIG_IPV6) 1391#if IS_ENABLED(CONFIG_IPV6)
1350 { "clip_tbl", &clip_tbl_debugfs_fops, S_IRUSR, 0 }, 1392 { "clip_tbl", &clip_tbl_debugfs_fops, S_IRUSR, 0 },
1351#endif 1393#endif
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index 8f99878a4913..4ea4a4a9c426 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -4526,6 +4526,48 @@ void t4_read_cimq_cfg(struct adapter *adap, u16 *base, u16 *size, u16 *thres)
4526} 4526}
4527 4527
4528/** 4528/**
4529 * t4_read_cim_ibq - read the contents of a CIM inbound queue
4530 * @adap: the adapter
4531 * @qid: the queue index
4532 * @data: where to store the queue contents
4533 * @n: capacity of @data in 32-bit words
4534 *
4535 * Reads the contents of the selected CIM queue starting at address 0 up
4536 * to the capacity of @data. @n must be a multiple of 4. Returns < 0 on
4537 * error and the number of 32-bit words actually read on success.
4538 */
4539int t4_read_cim_ibq(struct adapter *adap, unsigned int qid, u32 *data, size_t n)
4540{
4541 int i, err, attempts;
4542 unsigned int addr;
4543 const unsigned int nwords = CIM_IBQ_SIZE * 4;
4544
4545 if (qid > 5 || (n & 3))
4546 return -EINVAL;
4547
4548 addr = qid * nwords;
4549 if (n > nwords)
4550 n = nwords;
4551
4552 /* It might take 3-10ms before the IBQ debug read access is allowed.
4553 * Wait for 1 Sec with a delay of 1 usec.
4554 */
4555 attempts = 1000000;
4556
4557 for (i = 0; i < n; i++, addr++) {
4558 t4_write_reg(adap, CIM_IBQ_DBG_CFG_A, IBQDBGADDR_V(addr) |
4559 IBQDBGEN_F);
4560 err = t4_wait_op_done(adap, CIM_IBQ_DBG_CFG_A, IBQDBGBUSY_F, 0,
4561 attempts, 1);
4562 if (err)
4563 return err;
4564 *data++ = t4_read_reg(adap, CIM_IBQ_DBG_DATA_A);
4565 }
4566 t4_write_reg(adap, CIM_IBQ_DBG_CFG_A, 0);
4567 return i;
4568}
4569
4570/**
4529 * t4_cim_read - read a block from CIM internal address space 4571 * t4_cim_read - read a block from CIM internal address space
4530 * @adap: the adapter 4572 * @adap: the adapter
4531 * @addr: the start address within the CIM address space 4573 * @addr: the start address within the CIM address space
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h
index f6b82da350e2..6581cd5949d1 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.h
@@ -60,6 +60,7 @@ enum {
60 CIM_NUM_OBQ = 6, /* # of CIM OBQs */ 60 CIM_NUM_OBQ = 6, /* # of CIM OBQs */
61 CIM_NUM_OBQ_T5 = 8, /* # of CIM OBQs for T5 adapter */ 61 CIM_NUM_OBQ_T5 = 8, /* # of CIM OBQs for T5 adapter */
62 CIMLA_SIZE = 2048, /* # of 32-bit words in CIM LA */ 62 CIMLA_SIZE = 2048, /* # of 32-bit words in CIM LA */
63 CIM_IBQ_SIZE = 128, /* # of 128-bit words in a CIM IBQ */
63}; 64};
64 65
65enum { 66enum {
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
index e036b563bf3c..39e4b7565a34 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h
@@ -2538,6 +2538,23 @@
2538#define HOSTWRITE_V(x) ((x) << HOSTWRITE_S) 2538#define HOSTWRITE_V(x) ((x) << HOSTWRITE_S)
2539#define HOSTWRITE_F HOSTWRITE_V(1U) 2539#define HOSTWRITE_F HOSTWRITE_V(1U)
2540 2540
2541#define CIM_IBQ_DBG_CFG_A 0x7b60
2542
2543#define IBQDBGADDR_S 16
2544#define IBQDBGADDR_M 0xfffU
2545#define IBQDBGADDR_V(x) ((x) << IBQDBGADDR_S)
2546#define IBQDBGADDR_G(x) (((x) >> IBQDBGADDR_S) & IBQDBGADDR_M)
2547
2548#define IBQDBGBUSY_S 1
2549#define IBQDBGBUSY_V(x) ((x) << IBQDBGBUSY_S)
2550#define IBQDBGBUSY_F IBQDBGBUSY_V(1U)
2551
2552#define IBQDBGEN_S 0
2553#define IBQDBGEN_V(x) ((x) << IBQDBGEN_S)
2554#define IBQDBGEN_F IBQDBGEN_V(1U)
2555
2556#define CIM_IBQ_DBG_DATA_A 0x7b68
2557
2541#define UPDBGLARDEN_S 1 2558#define UPDBGLARDEN_S 1
2542#define UPDBGLARDEN_V(x) ((x) << UPDBGLARDEN_S) 2559#define UPDBGLARDEN_V(x) ((x) << UPDBGLARDEN_S)
2543#define UPDBGLARDEN_F UPDBGLARDEN_V(1U) 2560#define UPDBGLARDEN_F UPDBGLARDEN_V(1U)