--- zzzz-none-000/linux-3.10.107/drivers/infiniband/hw/qib/qib_qsfp.c	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/drivers/infiniband/hw/qib/qib_qsfp.c	2021-02-04 17:41:59.000000000 +0000
@@ -81,7 +81,7 @@
 	 * Module could take up to 2 Msec to respond to MOD_SEL, and there
 	 * is no way to tell if it is ready, so we must wait.
 	 */
-	msleep(2);
+	msleep(20);
 
 	/* Make sure TWSI bus is in sane state. */
 	ret = qib_twsi_reset(dd);
@@ -99,6 +99,7 @@
 	while (cnt < len) {
 		unsigned in_page;
 		int wlen = len - cnt;
+
 		in_page = addr % QSFP_PAGESIZE;
 		if ((in_page + wlen) > QSFP_PAGESIZE)
 			wlen = QSFP_PAGESIZE - in_page;
@@ -139,7 +140,7 @@
 	else if (pass)
 		qib_dev_porterr(dd, ppd->port, "QSFP retries: %d\n", pass);
 
-	msleep(2);
+	msleep(20);
 
 bail:
 	mutex_unlock(&dd->eep_lock);
@@ -189,7 +190,7 @@
 	 * Module could take up to 2 Msec to respond to MOD_SEL,
 	 * and there is no way to tell if it is ready, so we must wait.
 	 */
-	msleep(2);
+	msleep(20);
 
 	/* Make sure TWSI bus is in sane state. */
 	ret = qib_twsi_reset(dd);
@@ -206,6 +207,7 @@
 	while (cnt < len) {
 		unsigned in_page;
 		int wlen = len - cnt;
+
 		in_page = addr % QSFP_PAGESIZE;
 		if ((in_page + wlen) > QSFP_PAGESIZE)
 			wlen = QSFP_PAGESIZE - in_page;
@@ -234,7 +236,7 @@
 	 * going away, and there is no way to tell if it is ready.
 	 * so we must wait.
 	 */
-	msleep(2);
+	msleep(20);
 
 bail:
 	mutex_unlock(&dd->eep_lock);
@@ -290,12 +292,13 @@
 		qib_dev_porterr(ppd->dd, ppd->port,
 				"QSFP byte0 is 0x%02X, S/B 0x0C/D\n", peek[0]);
 
-	if ((peek[2] & 2) == 0) {
+	if ((peek[2] & 4) == 0) {
 		/*
 		 * If cable is paged, rather than "flat memory", we need to
 		 * set the page to zero, Even if it already appears to be zero.
 		 */
 		u8 poke = 0;
+
 		ret = qib_qsfp_write(ppd, 127, &poke, 1);
 		udelay(50);
 		if (ret != 1) {
@@ -480,7 +483,6 @@
 	udelay(20); /* Generous RST dwell */
 
 	dd->f_gpio_mod(dd, mask, mask, mask);
-	return;
 }
 
 void qib_qsfp_deinit(struct qib_qsfp_data *qd)
@@ -536,10 +538,11 @@
 	sofar += scnprintf(buf + sofar, len - sofar, "Date:%.*s\n",
 			   QSFP_DATE_LEN, cd.date);
 	sofar += scnprintf(buf + sofar, len - sofar, "Lot:%.*s\n",
-			   QSFP_LOT_LEN, cd.date);
+			   QSFP_LOT_LEN, cd.lot);
 
 	while (bidx < QSFP_DEFAULT_HDR_CNT) {
 		int iidx;
+
 		ret = qsfp_read(ppd, bidx, bin_buff, QSFP_DUMP_CHUNK);
 		if (ret < 0)
 			goto bail;