git: 9fb993778d3f - stable/15 - cxgbe(4): Add support for port types SFP56 and QSFP56 and speed 200Gbps

The branch stable/15 has been updated by np:

URL: https://cgit.FreeBSD.org/src/commit/?id=9fb993778d3fc37eacdec14f5d987f3d43b25896

commit 9fb993778d3fc37eacdec14f5d987f3d43b25896
Author:     Navdeep Parhar <np@FreeBSD.org>
AuthorDate: 2025-09-29 14:20:07 +0000
Commit:     Navdeep Parhar <np@FreeBSD.org>
CommitDate: 2025-10-02 22:09:06 +0000

    cxgbe(4): Add support for port types SFP56 and QSFP56 and speed 200Gbps
    
    This enables the 2x200/100/40Gbps and 4x50/25/10/1Gbps boards.
    
    Sponsored by:   Chelsio Communications
    
    (cherry picked from commit a02f38ccedc2c648d57fb6e575723b0b31b67ea0)
---
 sys/dev/cxgbe/t4_main.c | 23 ++++++++++++++++-------
 1 file changed, 16 insertions(+), 7 deletions(-)

diff --git a/sys/dev/cxgbe/t4_main.c b/sys/dev/cxgbe/t4_main.c
index 0ad162cf2231..e9cb56562abe 100644
--- a/sys/dev/cxgbe/t4_main.c
+++ b/sys/dev/cxgbe/t4_main.c
@@ -557,6 +557,9 @@ static int t4_fec = -1;
 SYSCTL_INT(_hw_cxgbe, OID_AUTO, fec, CTLFLAG_RDTUN, &t4_fec, 0,
     "Forward Error Correction (bit 0 = RS, bit 1 = BASER_RS)");
 
+static const char *
+t4_fec_bits = "\20\1RS-FEC\2FC-FEC\3NO-FEC\4RSVD1\5RSVD2\6auto\7module";
+
 /*
  * Controls when the driver sets the FORCE_FEC bit in the L1_CFG32 that it
  * issues to the firmware.  If the firmware doesn't support FORCE_FEC then the
@@ -3637,6 +3640,8 @@ port_mword(struct port_info *pi, uint32_t speed)
 	case FW_PORT_TYPE_CR_QSFP:
 	case FW_PORT_TYPE_CR2_QSFP:
 	case FW_PORT_TYPE_SFP28:
+	case FW_PORT_TYPE_SFP56:
+	case FW_PORT_TYPE_QSFP56:
 		/* Pluggable transceiver */
 		switch (pi->mod_type) {
 		case FW_PORT_MOD_TYPE_LR:
@@ -3654,6 +3659,8 @@ port_mword(struct port_info *pi, uint32_t speed)
 				return (IFM_50G_LR2);
 			case FW_PORT_CAP32_SPEED_100G:
 				return (IFM_100G_LR4);
+			case FW_PORT_CAP32_SPEED_200G:
+				return (IFM_200G_LR4);
 			}
 			break;
 		case FW_PORT_MOD_TYPE_SR:
@@ -3670,6 +3677,8 @@ port_mword(struct port_info *pi, uint32_t speed)
 				return (IFM_50G_SR2);
 			case FW_PORT_CAP32_SPEED_100G:
 				return (IFM_100G_SR4);
+			case FW_PORT_CAP32_SPEED_200G:
+				return (IFM_200G_SR4);
 			}
 			break;
 		case FW_PORT_MOD_TYPE_ER:
@@ -3691,6 +3700,8 @@ port_mword(struct port_info *pi, uint32_t speed)
 				return (IFM_50G_CR2);
 			case FW_PORT_CAP32_SPEED_100G:
 				return (IFM_100G_CR4);
+			case FW_PORT_CAP32_SPEED_200G:
+				return (IFM_200G_CR4_PAM4);
 			}
 			break;
 		case FW_PORT_MOD_TYPE_LRM:
@@ -3700,6 +3711,8 @@ port_mword(struct port_info *pi, uint32_t speed)
 		case FW_PORT_MOD_TYPE_DR:
 			if (speed == FW_PORT_CAP32_SPEED_100G)
 				return (IFM_100G_DR);
+			if (speed == FW_PORT_CAP32_SPEED_200G)
+				return (IFM_200G_DR4);
 			break;
 		case FW_PORT_MOD_TYPE_NA:
 			MPASS(0);	/* Not pluggable? */
@@ -8932,13 +8945,12 @@ sysctl_link_fec(SYSCTL_HANDLER_ARGS)
 	struct link_config *lc = &pi->link_cfg;
 	int rc;
 	struct sbuf *sb;
-	static char *bits = "\20\1RS-FEC\2FC-FEC\3NO-FEC\4RSVD1\5RSVD2";
 
 	sb = sbuf_new_for_sysctl(NULL, NULL, 128, req);
 	if (sb == NULL)
 		return (ENOMEM);
 	if (lc->link_ok)
-		sbuf_printf(sb, "%b", lc->fec, bits);
+		sbuf_printf(sb, "%b", lc->fec, t4_fec_bits);
 	else
 		sbuf_printf(sb, "no link");
 	rc = sbuf_finish(sb);
@@ -8958,14 +8970,12 @@ sysctl_requested_fec(SYSCTL_HANDLER_ARGS)
 
 	if (req->newptr == NULL) {
 		struct sbuf *sb;
-		static char *bits = "\20\1RS-FEC\2FC-FEC\3NO-FEC\4RSVD2"
-		    "\5RSVD3\6auto\7module";
 
 		sb = sbuf_new_for_sysctl(NULL, NULL, 128, req);
 		if (sb == NULL)
 			return (ENOMEM);
 
-		sbuf_printf(sb, "%b", lc->requested_fec, bits);
+		sbuf_printf(sb, "%b", lc->requested_fec, t4_fec_bits);
 		rc = sbuf_finish(sb);
 		sbuf_delete(sb);
 	} else {
@@ -9034,7 +9044,6 @@ sysctl_module_fec(SYSCTL_HANDLER_ARGS)
 	int rc;
 	int8_t fec;
 	struct sbuf *sb;
-	static char *bits = "\20\1RS-FEC\2FC-FEC\3NO-FEC\4RSVD2\5RSVD3";
 
 	sb = sbuf_new_for_sysctl(NULL, NULL, 128, req);
 	if (sb == NULL)
@@ -9068,7 +9077,7 @@ sysctl_module_fec(SYSCTL_HANDLER_ARGS)
 		if (fec == 0)
 			fec = FEC_NONE;
 		PORT_UNLOCK(pi);
-		sbuf_printf(sb, "%b", fec & M_FW_PORT_CAP32_FEC, bits);
+		sbuf_printf(sb, "%b", fec & M_FW_PORT_CAP32_FEC, t4_fec_bits);
 	}
 	rc = sbuf_finish(sb);
 done: