staging/rdma/hfi1: Remove QSFP_ENABLED from HFI capability mask

The QSFP interface code has been running without issues and the flag is
never set to off. This patch removes the QSFP_ENABLED bit from HFI1_CAP.

Reviewed-by: Mike Marciniszyn <[e-mail]>
Signed-off-by: Easwar Hariharan <[e-mail]>
Signed-off-by: Ira Weiny <[e-mail]>
Signed-off-by: Greg Kroah-Hartman <[e-mail]>

drivers/staging/rdma/hfi1/chip.c

···
 	u64 qsfp_mask;
 
 	if (loopback == LOOPBACK_SERDES || loopback == LOOPBACK_LCB ||
-			ppd->dd->icode == ICODE_FUNCTIONAL_SIMULATOR ||
-			!HFI1_CAP_IS_KSET(QSFP_ENABLED)) {
+			ppd->dd->icode == ICODE_FUNCTIONAL_SIMULATOR) {
 		ppd->driver_link_ready = 1;
 		return;
 	}

drivers/staging/rdma/hfi1/common.h

···
 				  HFI1_CAP_USE_SDMA_HEAD |		\
 				  HFI1_CAP_EXTENDED_PSN |		\
 				  HFI1_CAP_PRINT_UNIMPL |		\
-				  HFI1_CAP_QSFP_ENABLED |		\
 				  HFI1_CAP_NO_INTEGRITY |		\
 				  HFI1_CAP_PKEY_CHECK) <<		\
 				 HFI1_CAP_USER_SHIFT)
···
 				 HFI1_CAP_SDMA |			\
 				 HFI1_CAP_PRINT_UNIMPL |		\
 				 HFI1_CAP_STATIC_RATE_CTRL |		\
-				 HFI1_CAP_QSFP_ENABLED |		\
 				 HFI1_CAP_PKEY_CHECK |			\
 				 HFI1_CAP_MULTI_PKT_EGR |		\
 				 HFI1_CAP_EXTENDED_PSN |		\

drivers/staging/rdma/hfi1/qsfp.c

···
 
 int qsfp_mod_present(struct hfi1_pportdata *ppd)
 {
-	if (HFI1_CAP_IS_KSET(QSFP_ENABLED)) {
-		struct hfi1_devdata *dd = ppd->dd;
-		u64 reg;
+	struct hfi1_devdata *dd = ppd->dd;
+	u64 reg;
 
-		reg = read_csr(dd,
-			dd->hfi1_id ? ASIC_QSFP2_IN : ASIC_QSFP1_IN);
-		return !(reg & QSFP_HFI0_MODPRST_N);
-	}
-	/* always return cable present */
-	return 1;
+	reg = read_csr(dd, dd->hfi1_id ? ASIC_QSFP2_IN : ASIC_QSFP1_IN);
+	return !(reg & QSFP_HFI0_MODPRST_N);
 }
 
 /*

include/uapi/rdma/hfi/hfi1_user.h

···
 #define HFI1_CAP_SDMA_AHG         (1UL <<  2) /* Enable SDMA AHG support */
 #define HFI1_CAP_EXTENDED_PSN     (1UL <<  3) /* Enable Extended PSN support */
 #define HFI1_CAP_HDRSUPP          (1UL <<  4) /* Enable Header Suppression */
-/* 1UL << 5 reserved */
+/* 1UL << 5 unused */
 #define HFI1_CAP_USE_SDMA_HEAD    (1UL <<  6) /* DMA Hdr Q tail vs. use CSR */
 #define HFI1_CAP_MULTI_PKT_EGR    (1UL <<  7) /* Enable multi-packet Egr buffs*/
 #define HFI1_CAP_NODROP_RHQ_FULL  (1UL <<  8) /* Don't drop on Hdr Q full */
···
 #define HFI1_CAP_NO_INTEGRITY     (1UL << 13) /* Enable ctxt integrity checks */
 #define HFI1_CAP_PKEY_CHECK       (1UL << 14) /* Enable ctxt PKey checking */
 #define HFI1_CAP_STATIC_RATE_CTRL (1UL << 15) /* Allow PBC.StaticRateControl */
-#define HFI1_CAP_QSFP_ENABLED     (1UL << 16) /* Enable QSFP check during LNI */
+/* 1UL << 16 unused */
 #define HFI1_CAP_SDMA_HEAD_CHECK  (1UL << 17) /* SDMA head checking */
 #define HFI1_CAP_EARLY_CREDIT_RETURN (1UL << 18) /* early credit return */