diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
index a749602fdc41..d4032e373927 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4.h
@@ -1459,7 +1459,7 @@ unsigned int qtimer_val(const struct adapter *adap,
 
 int t4_init_devlog_params(struct adapter *adapter);
 int t4_init_sge_params(struct adapter *adapter);
-int t4_init_tp_params(struct adapter *adap);
+int t4_init_tp_params(struct adapter *adap, bool sleep_ok);
 int t4_filter_field_shift(const struct adapter *adap, int filter_sel);
 int t4_init_rss_mode(struct adapter *adap, int mbox);
 int t4_init_portinfo(struct port_info *pi, int mbox,
@@ -1473,14 +1473,15 @@ int t4_config_glbl_rss(struct adapter *adapter, int mbox, unsigned int mode,
 int t4_config_vi_rss(struct adapter *adapter, int mbox, unsigned int viid,
 		     unsigned int flags, unsigned int defq);
 int t4_read_rss(struct adapter *adapter, u16 *entries);
-void t4_read_rss_key(struct adapter *adapter, u32 *key);
-void t4_write_rss_key(struct adapter *adap, const u32 *key, int idx);
+void t4_read_rss_key(struct adapter *adapter, u32 *key, bool sleep_ok);
+void t4_write_rss_key(struct adapter *adap, const u32 *key, int idx,
+		      bool sleep_ok);
 void t4_read_rss_pf_config(struct adapter *adapter, unsigned int index,
-			   u32 *valp);
+			   u32 *valp, bool sleep_ok);
 void t4_read_rss_vf_config(struct adapter *adapter, unsigned int index,
-			   u32 *vfl, u32 *vfh);
-u32 t4_read_rss_pf_map(struct adapter *adapter);
-u32 t4_read_rss_pf_mask(struct adapter *adapter);
+			   u32 *vfl, u32 *vfh, bool sleep_ok);
+u32 t4_read_rss_pf_map(struct adapter *adapter, bool sleep_ok);
+u32 t4_read_rss_pf_mask(struct adapter *adapter, bool sleep_ok);
 
 unsigned int t4_get_mps_bg_map(struct adapter *adapter, int pidx);
 unsigned int t4_get_tp_ch_map(struct adapter *adapter, int pidx);
@@ -1511,14 +1512,18 @@ void t4_read_cong_tbl(struct adapter *adap, u16 incr[NMTUS][NCCTRL_WIN]);
 void t4_tp_wr_bits_indirect(struct adapter *adap, unsigned int addr,
 			    unsigned int mask, unsigned int val);
 void t4_tp_read_la(struct adapter *adap, u64 *la_buf, unsigned int *wrptr);
-void t4_tp_get_err_stats(struct adapter *adap, struct tp_err_stats *st);
-void t4_tp_get_cpl_stats(struct adapter *adap, struct tp_cpl_stats *st);
-void t4_tp_get_rdma_stats(struct adapter *adap, struct tp_rdma_stats *st);
-void t4_get_usm_stats(struct adapter *adap, struct tp_usm_stats *st);
+void t4_tp_get_err_stats(struct adapter *adap, struct tp_err_stats *st,
+			 bool sleep_ok);
+void t4_tp_get_cpl_stats(struct adapter *adap, struct tp_cpl_stats *st,
+			 bool sleep_ok);
+void t4_tp_get_rdma_stats(struct adapter *adap, struct tp_rdma_stats *st,
+			  bool sleep_ok);
+void t4_get_usm_stats(struct adapter *adap, struct tp_usm_stats *st,
+		      bool sleep_ok);
 void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4,
-			 struct tp_tcp_stats *v6);
+			 struct tp_tcp_stats *v6, bool sleep_ok);
 void t4_get_fcoe_stats(struct adapter *adap, unsigned int idx,
-		       struct tp_fcoe_stats *st);
+		       struct tp_fcoe_stats *st, bool sleep_ok);
 void t4_load_mtus(struct adapter *adap, const unsigned short *mtus,
 		  const unsigned short *alpha, const unsigned short *beta);
 
@@ -1627,6 +1632,11 @@ void t4_idma_monitor(struct adapter *adapter,
 		     int hz, int ticks);
 int t4_set_vf_mac_acl(struct adapter *adapter, unsigned int vf,
 		      unsigned int naddr, u8 *addr);
+void t4_tp_pio_read(struct adapter *adap, u32 *buff, u32 nregs,
+		    u32 start_index, bool sleep_ok);
+void t4_tp_mib_read(struct adapter *adap, u32 *buff, u32 nregs,
+		    u32 start_index, bool sleep_ok);
+
 void t4_uld_mem_free(struct adapter *adap);
 int t4_uld_mem_alloc(struct adapter *adap);
 void t4_uld_clean_up(struct adapter *adap);
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
index 76540b0e082d..917663b35603 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_debugfs.c
@@ -2211,7 +2211,7 @@ static int rss_key_show(struct seq_file *seq, void *v)
 {
 	u32 key[10];
 
-	t4_read_rss_key(seq->private, key);
+	t4_read_rss_key(seq->private, key, true);
 	seq_printf(seq, "%08x%08x%08x%08x%08x%08x%08x%08x%08x%08x\n",
 		   key[9], key[8], key[7], key[6], key[5], key[4], key[3],
 		   key[2], key[1], key[0]);
@@ -2248,7 +2248,7 @@ static ssize_t rss_key_write(struct file *file, const char __user *buf,
 		}
 	}
 
-	t4_write_rss_key(adap, key, -1);
+	t4_write_rss_key(adap, key, -1, true);
 	return count;
 }
 
@@ -2325,12 +2325,13 @@ static int rss_pf_config_open(struct inode *inode, struct file *file)
 		return -ENOMEM;
 
 	pfconf = (struct rss_pf_conf *)p->data;
-	rss_pf_map = t4_read_rss_pf_map(adapter);
-	rss_pf_mask = t4_read_rss_pf_mask(adapter);
+	rss_pf_map = t4_read_rss_pf_map(adapter, true);
+	rss_pf_mask = t4_read_rss_pf_mask(adapter, true);
 	for (pf = 0; pf < 8; pf++) {
 		pfconf[pf].rss_pf_map = rss_pf_map;
 		pfconf[pf].rss_pf_mask = rss_pf_mask;
-		t4_read_rss_pf_config(adapter, pf, &pfconf[pf].rss_pf_config);
+		t4_read_rss_pf_config(adapter, pf, &pfconf[pf].rss_pf_config,
+				      true);
 	}
 	return 0;
 }
@@ -2393,7 +2394,7 @@ static int rss_vf_config_open(struct inode *inode, struct file *file)
 	vfconf = (struct rss_vf_conf *)p->data;
 	for (vf = 0; vf < vfcount; vf++) {
 		t4_read_rss_vf_config(adapter, vf, &vfconf[vf].rss_vf_vfl,
-				      &vfconf[vf].rss_vf_vfh);
+				      &vfconf[vf].rss_vf_vfh, true);
 	}
 	return 0;
 }
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
index 796eb051cb2f..1b7f6b9ccc8b 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
@@ -336,10 +336,10 @@ static void collect_adapter_stats(struct adapter *adap, struct adapter_stats *s)
 	memset(s, 0, sizeof(*s));
 
 	spin_lock(&adap->stats_lock);
-	t4_tp_get_tcp_stats(adap, &v4, &v6);
-	t4_tp_get_rdma_stats(adap, &rdma_stats);
-	t4_get_usm_stats(adap, &usm_stats);
-	t4_tp_get_err_stats(adap, &err_stats);
+	t4_tp_get_tcp_stats(adap, &v4, &v6, false);
+	t4_tp_get_rdma_stats(adap, &rdma_stats, false);
+	t4_get_usm_stats(adap, &usm_stats, false);
+	t4_tp_get_err_stats(adap, &err_stats, false);
 	spin_unlock(&adap->stats_lock);
 
 	s->db_drop = adap->db_stats.db_drop;
@@ -389,9 +389,9 @@ static void collect_channel_stats(struct adapter *adap, struct channel_stats *s,
 	memset(s, 0, sizeof(*s));
 
 	spin_lock(&adap->stats_lock);
-	t4_tp_get_cpl_stats(adap, &cpl_stats);
-	t4_tp_get_err_stats(adap, &err_stats);
-	t4_get_fcoe_stats(adap, i, &fcoe_stats);
+	t4_tp_get_cpl_stats(adap, &cpl_stats, false);
+	t4_tp_get_err_stats(adap, &err_stats, false);
+	t4_get_fcoe_stats(adap, i, &fcoe_stats, false);
 	spin_unlock(&adap->stats_lock);
 
 	s->cpl_req = cpl_stats.req[i];
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index 70c395d18087..8d97ae6039aa 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -1639,7 +1639,7 @@ void cxgb4_get_tcp_stats(struct pci_dev *pdev, struct tp_tcp_stats *v4,
 	struct adapter *adap = pci_get_drvdata(pdev);
 
 	spin_lock(&adap->stats_lock);
-	t4_tp_get_tcp_stats(adap, v4, v6);
+	t4_tp_get_tcp_stats(adap, v4, v6, false);
 	spin_unlock(&adap->stats_lock);
 }
 EXPORT_SYMBOL(cxgb4_get_tcp_stats);
@@ -4077,7 +4077,7 @@ static int adap_init0(struct adapter *adap)
 	}
 	t4_init_sge_params(adap);
 	adap->flags |= FW_OK;
-	t4_init_tp_params(adap);
+	t4_init_tp_params(adap, true);
 	return 0;
 
 	/*
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
index b3fd1f457639..0f12bf507d56 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c
@@ -5052,23 +5052,26 @@ static unsigned int t4_use_ldst(struct adapter *adap)
 }
 
 /**
- *	t4_fw_tp_pio_rw - Access TP PIO through LDST
- *	@adap: the adapter
- *	@vals: where the indirect register values are stored/written
- *	@nregs: how many indirect registers to read/write
- *	@start_idx: index of first indirect register to read/write
- *	@rw: Read (1) or Write (0)
+ * t4_tp_fw_ldst_rw - Access TP indirect register through LDST
+ * @adap: the adapter
+ * @cmd: TP fw ldst address space type
+ * @vals: where the indirect register values are stored/written
+ * @nregs: how many indirect registers to read/write
+ * @start_idx: index of first indirect register to read/write
+ * @rw: Read (1) or Write (0)
+ * @sleep_ok: if true we may sleep while awaiting command completion
  *
- *	Access TP PIO registers through LDST
+ * Access TP indirect registers through LDST
  */
-static void t4_fw_tp_pio_rw(struct adapter *adap, u32 *vals, unsigned int nregs,
-			    unsigned int start_index, unsigned int rw)
+static int t4_tp_fw_ldst_rw(struct adapter *adap, int cmd, u32 *vals,
+			    unsigned int nregs, unsigned int start_index,
+			    unsigned int rw, bool sleep_ok)
 {
-	int ret, i;
-	int cmd = FW_LDST_ADDRSPC_TP_PIO;
+	int ret = 0;
+	unsigned int i;
 	struct fw_ldst_cmd c;
 
-	for (i = 0 ; i < nregs; i++) {
+	for (i = 0; i < nregs; i++) {
 		memset(&c, 0, sizeof(c));
 		c.op_to_addrspace = cpu_to_be32(FW_CMD_OP_V(FW_LDST_CMD) |
 						FW_CMD_REQUEST_F |
@@ -5079,26 +5082,127 @@ static void t4_fw_tp_pio_rw(struct adapter *adap, u32 *vals, unsigned int nregs,
 
 		c.u.addrval.addr = cpu_to_be32(start_index + i);
 		c.u.addrval.val  = rw ? 0 : cpu_to_be32(vals[i]);
-		ret = t4_wr_mbox(adap, adap->mbox, &c, sizeof(c), &c);
-		if (!ret && rw)
+		ret = t4_wr_mbox_meat(adap, adap->mbox, &c, sizeof(c), &c,
+				      sleep_ok);
+		if (ret)
+			return ret;
+
+		if (rw)
 			vals[i] = be32_to_cpu(c.u.addrval.val);
 	}
+	return 0;
+}
+
+/**
+ * t4_tp_indirect_rw - Read/Write TP indirect register through LDST or backdoor
+ * @adap: the adapter
+ * @reg_addr: Address Register
+ * @reg_data: Data register
+ * @buff: where the indirect register values are stored/written
+ * @nregs: how many indirect registers to read/write
+ * @start_index: index of first indirect register to read/write
+ * @rw: READ(1) or WRITE(0)
+ * @sleep_ok: if true we may sleep while awaiting command completion
+ *
+ * Read/Write TP indirect registers through LDST if possible.
+ * Else, use backdoor access
+ **/
+static void t4_tp_indirect_rw(struct adapter *adap, u32 reg_addr, u32 reg_data,
+			      u32 *buff, u32 nregs, u32 start_index, int rw,
+			      bool sleep_ok)
+{
+	int rc = -EINVAL;
+	int cmd;
+
+	switch (reg_addr) {
+	case TP_PIO_ADDR_A:
+		cmd = FW_LDST_ADDRSPC_TP_PIO;
+		break;
+	case TP_MIB_INDEX_A:
+		cmd = FW_LDST_ADDRSPC_TP_MIB;
+		break;
+	default:
+		goto indirect_access;
+	}
+
+	if (t4_use_ldst(adap))
+		rc = t4_tp_fw_ldst_rw(adap, cmd, buff, nregs, start_index, rw,
+				      sleep_ok);
+
+indirect_access:
+
+	if (rc) {
+		if (rw)
+			t4_read_indirect(adap, reg_addr, reg_data, buff, nregs,
+					 start_index);
+		else
+			t4_write_indirect(adap, reg_addr, reg_data, buff, nregs,
+					  start_index);
+	}
+}
+
+/**
+ * t4_tp_pio_read - Read TP PIO registers
+ * @adap: the adapter
+ * @buff: where the indirect register values are written
+ * @nregs: how many indirect registers to read
+ * @start_index: index of first indirect register to read
+ * @sleep_ok: if true we may sleep while awaiting command completion
+ *
+ * Read TP PIO Registers
+ **/
+void t4_tp_pio_read(struct adapter *adap, u32 *buff, u32 nregs,
+		    u32 start_index, bool sleep_ok)
+{
+	t4_tp_indirect_rw(adap, TP_PIO_ADDR_A, TP_PIO_DATA_A, buff, nregs,
+			  start_index, 1, sleep_ok);
+}
+
+/**
+ * t4_tp_pio_write - Write TP PIO registers
+ * @adap: the adapter
+ * @buff: where the indirect register values are stored
+ * @nregs: how many indirect registers to write
+ * @start_index: index of first indirect register to write
+ * @sleep_ok: if true we may sleep while awaiting command completion
+ *
+ * Write TP PIO Registers
+ **/
+static void t4_tp_pio_write(struct adapter *adap, u32 *buff, u32 nregs,
+			    u32 start_index, bool sleep_ok)
+{
+	t4_tp_indirect_rw(adap, TP_PIO_ADDR_A, TP_PIO_DATA_A, buff, nregs,
+			  start_index, 0, sleep_ok);
+}
+
+/**
+ * t4_tp_mib_read - Read TP MIB registers
+ * @adap: the adapter
+ * @buff: where the indirect register values are written
+ * @nregs: how many indirect registers to read
+ * @start_index: index of first indirect register to read
+ * @sleep_ok: if true we may sleep while awaiting command completion
+ *
+ * Read TP MIB Registers
+ **/
+void t4_tp_mib_read(struct adapter *adap, u32 *buff, u32 nregs, u32 start_index,
+		    bool sleep_ok)
+{
+	t4_tp_indirect_rw(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A, buff, nregs,
+			  start_index, 1, sleep_ok);
 }
 
 /**
  *	t4_read_rss_key - read the global RSS key
  *	@adap: the adapter
  *	@key: 10-entry array holding the 320-bit RSS key
+ *      @sleep_ok: if true we may sleep while awaiting command completion
  *
  *	Reads the global 320-bit RSS key.
  */
-void t4_read_rss_key(struct adapter *adap, u32 *key)
+void t4_read_rss_key(struct adapter *adap, u32 *key, bool sleep_ok)
 {
-	if (t4_use_ldst(adap))
-		t4_fw_tp_pio_rw(adap, key, 10, TP_RSS_SECRET_KEY0_A, 1);
-	else
-		t4_read_indirect(adap, TP_PIO_ADDR_A, TP_PIO_DATA_A, key, 10,
-				 TP_RSS_SECRET_KEY0_A);
+	t4_tp_pio_read(adap, key, 10, TP_RSS_SECRET_KEY0_A, sleep_ok);
 }
 
 /**
@@ -5106,12 +5210,14 @@ void t4_read_rss_key(struct adapter *adap, u32 *key)
  *	@adap: the adapter
  *	@key: 10-entry array holding the 320-bit RSS key
  *	@idx: which RSS key to write
+ *      @sleep_ok: if true we may sleep while awaiting command completion
  *
  *	Writes one of the RSS keys with the given 320-bit value.  If @idx is
  *	0..15 the corresponding entry in the RSS key table is written,
  *	otherwise the global RSS key is written.
  */
-void t4_write_rss_key(struct adapter *adap, const u32 *key, int idx)
+void t4_write_rss_key(struct adapter *adap, const u32 *key, int idx,
+		      bool sleep_ok)
 {
 	u8 rss_key_addr_cnt = 16;
 	u32 vrt = t4_read_reg(adap, TP_RSS_CONFIG_VRT_A);
@@ -5124,11 +5230,7 @@ void t4_write_rss_key(struct adapter *adap, const u32 *key, int idx)
 	    (vrt & KEYEXTEND_F) && (KEYMODE_G(vrt) == 3))
 		rss_key_addr_cnt = 32;
 
-	if (t4_use_ldst(adap))
-		t4_fw_tp_pio_rw(adap, (void *)key, 10, TP_RSS_SECRET_KEY0_A, 0);
-	else
-		t4_write_indirect(adap, TP_PIO_ADDR_A, TP_PIO_DATA_A, key, 10,
-				  TP_RSS_SECRET_KEY0_A);
+	t4_tp_pio_write(adap, (void *)key, 10, TP_RSS_SECRET_KEY0_A, sleep_ok);
 
 	if (idx >= 0 && idx < rss_key_addr_cnt) {
 		if (rss_key_addr_cnt > 16)
@@ -5146,19 +5248,15 @@ void t4_write_rss_key(struct adapter *adap, const u32 *key, int idx)
  *	@adapter: the adapter
  *	@index: the entry in the PF RSS table to read
  *	@valp: where to store the returned value
+ *      @sleep_ok: if true we may sleep while awaiting command completion
  *
  *	Reads the PF RSS Configuration Table at the specified index and returns
  *	the value found there.
  */
 void t4_read_rss_pf_config(struct adapter *adapter, unsigned int index,
-			   u32 *valp)
+			   u32 *valp, bool sleep_ok)
 {
-	if (t4_use_ldst(adapter))
-		t4_fw_tp_pio_rw(adapter, valp, 1,
-				TP_RSS_PF0_CONFIG_A + index, 1);
-	else
-		t4_read_indirect(adapter, TP_PIO_ADDR_A, TP_PIO_DATA_A,
-				 valp, 1, TP_RSS_PF0_CONFIG_A + index);
+	t4_tp_pio_read(adapter, valp, 1, TP_RSS_PF0_CONFIG_A + index, sleep_ok);
 }
 
 /**
@@ -5167,12 +5265,13 @@ void t4_read_rss_pf_config(struct adapter *adapter, unsigned int index,
  *	@index: the entry in the VF RSS table to read
  *	@vfl: where to store the returned VFL
  *	@vfh: where to store the returned VFH
+ *      @sleep_ok: if true we may sleep while awaiting command completion
  *
  *	Reads the VF RSS Configuration Table at the specified index and returns
  *	the (VFL, VFH) values found there.
  */
 void t4_read_rss_vf_config(struct adapter *adapter, unsigned int index,
-			   u32 *vfl, u32 *vfh)
+			   u32 *vfl, u32 *vfh, bool sleep_ok)
 {
 	u32 vrt, mask, data;
 
@@ -5193,50 +5292,37 @@ void t4_read_rss_vf_config(struct adapter *adapter, unsigned int index,
 
 	/* Grab the VFL/VFH values ...
 	 */
-	if (t4_use_ldst(adapter)) {
-		t4_fw_tp_pio_rw(adapter, vfl, 1, TP_RSS_VFL_CONFIG_A, 1);
-		t4_fw_tp_pio_rw(adapter, vfh, 1, TP_RSS_VFH_CONFIG_A, 1);
-	} else {
-		t4_read_indirect(adapter, TP_PIO_ADDR_A, TP_PIO_DATA_A,
-				 vfl, 1, TP_RSS_VFL_CONFIG_A);
-		t4_read_indirect(adapter, TP_PIO_ADDR_A, TP_PIO_DATA_A,
-				 vfh, 1, TP_RSS_VFH_CONFIG_A);
-	}
+	t4_tp_pio_read(adapter, vfl, 1, TP_RSS_VFL_CONFIG_A, sleep_ok);
+	t4_tp_pio_read(adapter, vfh, 1, TP_RSS_VFH_CONFIG_A, sleep_ok);
 }
 
 /**
  *	t4_read_rss_pf_map - read PF RSS Map
  *	@adapter: the adapter
+ *      @sleep_ok: if true we may sleep while awaiting command completion
  *
  *	Reads the PF RSS Map register and returns its value.
  */
-u32 t4_read_rss_pf_map(struct adapter *adapter)
+u32 t4_read_rss_pf_map(struct adapter *adapter, bool sleep_ok)
 {
 	u32 pfmap;
 
-	if (t4_use_ldst(adapter))
-		t4_fw_tp_pio_rw(adapter, &pfmap, 1, TP_RSS_PF_MAP_A, 1);
-	else
-		t4_read_indirect(adapter, TP_PIO_ADDR_A, TP_PIO_DATA_A,
-				 &pfmap, 1, TP_RSS_PF_MAP_A);
+	t4_tp_pio_read(adapter, &pfmap, 1, TP_RSS_PF_MAP_A, sleep_ok);
 	return pfmap;
 }
 
 /**
  *	t4_read_rss_pf_mask - read PF RSS Mask
  *	@adapter: the adapter
+ *      @sleep_ok: if true we may sleep while awaiting command completion
  *
  *	Reads the PF RSS Mask register and returns its value.
  */
-u32 t4_read_rss_pf_mask(struct adapter *adapter)
+u32 t4_read_rss_pf_mask(struct adapter *adapter, bool sleep_ok)
 {
 	u32 pfmask;
 
-	if (t4_use_ldst(adapter))
-		t4_fw_tp_pio_rw(adapter, &pfmask, 1, TP_RSS_PF_MSK_A, 1);
-	else
-		t4_read_indirect(adapter, TP_PIO_ADDR_A, TP_PIO_DATA_A,
-				 &pfmask, 1, TP_RSS_PF_MSK_A);
+	t4_tp_pio_read(adapter, &pfmask, 1, TP_RSS_PF_MSK_A, sleep_ok);
 	return pfmask;
 }
 
@@ -5245,12 +5331,13 @@ u32 t4_read_rss_pf_mask(struct adapter *adapter)
  *	@adap: the adapter
  *	@v4: holds the TCP/IP counter values
  *	@v6: holds the TCP/IPv6 counter values
+ *      @sleep_ok: if true we may sleep while awaiting command completion
  *
  *	Returns the values of TP's TCP/IP and TCP/IPv6 MIB counters.
  *	Either @v4 or @v6 may be %NULL to skip the corresponding stats.
  */
 void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4,
-			 struct tp_tcp_stats *v6)
+			 struct tp_tcp_stats *v6, bool sleep_ok)
 {
 	u32 val[TP_MIB_TCP_RXT_SEG_LO_A - TP_MIB_TCP_OUT_RST_A + 1];
 
@@ -5259,16 +5346,16 @@ void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4,
 #define STAT64(x)   (((u64)STAT(x##_HI) << 32) | STAT(x##_LO))
 
 	if (v4) {
-		t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A, val,
-				 ARRAY_SIZE(val), TP_MIB_TCP_OUT_RST_A);
+		t4_tp_mib_read(adap, val, ARRAY_SIZE(val),
+			       TP_MIB_TCP_OUT_RST_A, sleep_ok);
 		v4->tcp_out_rsts = STAT(OUT_RST);
 		v4->tcp_in_segs  = STAT64(IN_SEG);
 		v4->tcp_out_segs = STAT64(OUT_SEG);
 		v4->tcp_retrans_segs = STAT64(RXT_SEG);
 	}
 	if (v6) {
-		t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A, val,
-				 ARRAY_SIZE(val), TP_MIB_TCP_V6OUT_RST_A);
+		t4_tp_mib_read(adap, val, ARRAY_SIZE(val),
+			       TP_MIB_TCP_V6OUT_RST_A, sleep_ok);
 		v6->tcp_out_rsts = STAT(OUT_RST);
 		v6->tcp_in_segs  = STAT64(IN_SEG);
 		v6->tcp_out_segs = STAT64(OUT_SEG);
@@ -5283,63 +5370,66 @@ void t4_tp_get_tcp_stats(struct adapter *adap, struct tp_tcp_stats *v4,
  *	t4_tp_get_err_stats - read TP's error MIB counters
  *	@adap: the adapter
  *	@st: holds the counter values
+ *      @sleep_ok: if true we may sleep while awaiting command completion
  *
  *	Returns the values of TP's error counters.
  */
-void t4_tp_get_err_stats(struct adapter *adap, struct tp_err_stats *st)
+void t4_tp_get_err_stats(struct adapter *adap, struct tp_err_stats *st,
+			 bool sleep_ok)
 {
 	int nchan = adap->params.arch.nchan;
 
-	t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A,
-			 st->mac_in_errs, nchan, TP_MIB_MAC_IN_ERR_0_A);
-	t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A,
-			 st->hdr_in_errs, nchan, TP_MIB_HDR_IN_ERR_0_A);
-	t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A,
-			 st->tcp_in_errs, nchan, TP_MIB_TCP_IN_ERR_0_A);
-	t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A,
-			 st->tnl_cong_drops, nchan, TP_MIB_TNL_CNG_DROP_0_A);
-	t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A,
-			 st->ofld_chan_drops, nchan, TP_MIB_OFD_CHN_DROP_0_A);
-	t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A,
-			 st->tnl_tx_drops, nchan, TP_MIB_TNL_DROP_0_A);
-	t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A,
-			 st->ofld_vlan_drops, nchan, TP_MIB_OFD_VLN_DROP_0_A);
-	t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A,
-			 st->tcp6_in_errs, nchan, TP_MIB_TCP_V6IN_ERR_0_A);
-
-	t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A,
-			 &st->ofld_no_neigh, 2, TP_MIB_OFD_ARP_DROP_A);
+	t4_tp_mib_read(adap, st->mac_in_errs, nchan, TP_MIB_MAC_IN_ERR_0_A,
+		       sleep_ok);
+	t4_tp_mib_read(adap, st->hdr_in_errs, nchan, TP_MIB_HDR_IN_ERR_0_A,
+		       sleep_ok);
+	t4_tp_mib_read(adap, st->tcp_in_errs, nchan, TP_MIB_TCP_IN_ERR_0_A,
+		       sleep_ok);
+	t4_tp_mib_read(adap, st->tnl_cong_drops, nchan,
+		       TP_MIB_TNL_CNG_DROP_0_A, sleep_ok);
+	t4_tp_mib_read(adap, st->ofld_chan_drops, nchan,
+		       TP_MIB_OFD_CHN_DROP_0_A, sleep_ok);
+	t4_tp_mib_read(adap, st->tnl_tx_drops, nchan, TP_MIB_TNL_DROP_0_A,
+		       sleep_ok);
+	t4_tp_mib_read(adap, st->ofld_vlan_drops, nchan,
+		       TP_MIB_OFD_VLN_DROP_0_A, sleep_ok);
+	t4_tp_mib_read(adap, st->tcp6_in_errs, nchan,
+		       TP_MIB_TCP_V6IN_ERR_0_A, sleep_ok);
+	t4_tp_mib_read(adap, &st->ofld_no_neigh, 2, TP_MIB_OFD_ARP_DROP_A,
+		       sleep_ok);
 }
 
 /**
  *	t4_tp_get_cpl_stats - read TP's CPL MIB counters
  *	@adap: the adapter
  *	@st: holds the counter values
+ *      @sleep_ok: if true we may sleep while awaiting command completion
  *
  *	Returns the values of TP's CPL counters.
  */
-void t4_tp_get_cpl_stats(struct adapter *adap, struct tp_cpl_stats *st)
+void t4_tp_get_cpl_stats(struct adapter *adap, struct tp_cpl_stats *st,
+			 bool sleep_ok)
 {
 	int nchan = adap->params.arch.nchan;
 
-	t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A, st->req,
-			 nchan, TP_MIB_CPL_IN_REQ_0_A);
-	t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A, st->rsp,
-			 nchan, TP_MIB_CPL_OUT_RSP_0_A);
+	t4_tp_mib_read(adap, st->req, nchan, TP_MIB_CPL_IN_REQ_0_A, sleep_ok);
 
+	t4_tp_mib_read(adap, st->rsp, nchan, TP_MIB_CPL_OUT_RSP_0_A, sleep_ok);
 }
 
 /**
  *	t4_tp_get_rdma_stats - read TP's RDMA MIB counters
  *	@adap: the adapter
  *	@st: holds the counter values
+ *      @sleep_ok: if true we may sleep while awaiting command completion
  *
  *	Returns the values of TP's RDMA counters.
  */
-void t4_tp_get_rdma_stats(struct adapter *adap, struct tp_rdma_stats *st)
+void t4_tp_get_rdma_stats(struct adapter *adap, struct tp_rdma_stats *st,
+			  bool sleep_ok)
 {
-	t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A, &st->rqe_dfr_pkt,
-			 2, TP_MIB_RQE_DFR_PKT_A);
+	t4_tp_mib_read(adap, &st->rqe_dfr_pkt, 2, TP_MIB_RQE_DFR_PKT_A,
+		       sleep_ok);
 }
 
 /**
@@ -5347,20 +5437,24 @@ void t4_tp_get_rdma_stats(struct adapter *adap, struct tp_rdma_stats *st)
  *	@adap: the adapter
  *	@idx: the port index
  *	@st: holds the counter values
+ *      @sleep_ok: if true we may sleep while awaiting command completion
  *
  *	Returns the values of TP's FCoE counters for the selected port.
  */
 void t4_get_fcoe_stats(struct adapter *adap, unsigned int idx,
-		       struct tp_fcoe_stats *st)
+		       struct tp_fcoe_stats *st, bool sleep_ok)
 {
 	u32 val[2];
 
-	t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A, &st->frames_ddp,
-			 1, TP_MIB_FCOE_DDP_0_A + idx);
-	t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A, &st->frames_drop,
-			 1, TP_MIB_FCOE_DROP_0_A + idx);
-	t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A, val,
-			 2, TP_MIB_FCOE_BYTE_0_HI_A + 2 * idx);
+	t4_tp_mib_read(adap, &st->frames_ddp, 1, TP_MIB_FCOE_DDP_0_A + idx,
+		       sleep_ok);
+
+	t4_tp_mib_read(adap, &st->frames_drop, 1,
+		       TP_MIB_FCOE_DROP_0_A + idx, sleep_ok);
+
+	t4_tp_mib_read(adap, val, 2, TP_MIB_FCOE_BYTE_0_HI_A + 2 * idx,
+		       sleep_ok);
+
 	st->octets_ddp = ((u64)val[0] << 32) | val[1];
 }
 
@@ -5368,15 +5462,16 @@ void t4_get_fcoe_stats(struct adapter *adap, unsigned int idx,
  *	t4_get_usm_stats - read TP's non-TCP DDP MIB counters
  *	@adap: the adapter
  *	@st: holds the counter values
+ *      @sleep_ok: if true we may sleep while awaiting command completion
  *
  *	Returns the values of TP's counters for non-TCP directly-placed packets.
  */
-void t4_get_usm_stats(struct adapter *adap, struct tp_usm_stats *st)
+void t4_get_usm_stats(struct adapter *adap, struct tp_usm_stats *st,
+		      bool sleep_ok)
 {
 	u32 val[4];
 
-	t4_read_indirect(adap, TP_MIB_INDEX_A, TP_MIB_DATA_A, val, 4,
-			 TP_MIB_USM_PKTS_A);
+	t4_tp_mib_read(adap, val, 4, TP_MIB_USM_PKTS_A, sleep_ok);
 	st->frames = val[0];
 	st->drops = val[1];
 	st->octets = ((u64)val[2] << 32) | val[3];
@@ -8663,10 +8758,11 @@ int t4_init_sge_params(struct adapter *adapter)
 /**
  *      t4_init_tp_params - initialize adap->params.tp
  *      @adap: the adapter
+ *      @sleep_ok: if true we may sleep while awaiting command completion
  *
  *      Initialize various fields of the adapter's TP Parameters structure.
  */
-int t4_init_tp_params(struct adapter *adap)
+int t4_init_tp_params(struct adapter *adap, bool sleep_ok)
 {
 	int chan;
 	u32 v;
@@ -8682,19 +8778,11 @@ int t4_init_tp_params(struct adapter *adap)
 	/* Cache the adapter's Compressed Filter Mode and global Incress
 	 * Configuration.
 	 */
-	if (t4_use_ldst(adap)) {
-		t4_fw_tp_pio_rw(adap, &adap->params.tp.vlan_pri_map, 1,
-				TP_VLAN_PRI_MAP_A, 1);
-		t4_fw_tp_pio_rw(adap, &adap->params.tp.ingress_config, 1,
-				TP_INGRESS_CONFIG_A, 1);
-	} else {
-		t4_read_indirect(adap, TP_PIO_ADDR_A, TP_PIO_DATA_A,
-				 &adap->params.tp.vlan_pri_map, 1,
-				 TP_VLAN_PRI_MAP_A);
-		t4_read_indirect(adap, TP_PIO_ADDR_A, TP_PIO_DATA_A,
-				 &adap->params.tp.ingress_config, 1,
-				 TP_INGRESS_CONFIG_A);
-	}
+	t4_tp_pio_read(adap, &adap->params.tp.vlan_pri_map, 1,
+		       TP_VLAN_PRI_MAP_A, sleep_ok);
+	t4_tp_pio_read(adap, &adap->params.tp.ingress_config, 1,
+		       TP_INGRESS_CONFIG_A, sleep_ok);
+
 	/* For T6, cache the adapter's compressed error vector
 	 * and passing outer header info for encapsulated packets.
 	 */