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Date: Fri, 15 Dec 2017 17:03:01 -0600
From: Bjorn Helgaas <helgaas@...nel.org>
To: netdev@...r.kernel.org
Cc: linux-pci@...r.kernel.org, Ariel Elior <Ariel.Elior@...ium.com>,
everest-linux-l2@...ium.com
Subject: [PATCH] qed: Remove unused QED_RDMA_DEV_CAP_* symbols and
dev->dev_caps
From: Bjorn Helgaas <bhelgaas@...gle.com>
The QED_RDMA_DEV_CAP_* symbols are only used to set bits in dev->dev_caps.
Nobody ever looks at those bits. Remove the symbols and dev_caps itself.
Note that if these are ever used and added back, it looks incorrect to set
QED_RDMA_DEV_CAP_ATOMIC_OP based on PCI_EXP_DEVCTL2_LTR_EN. LTR is the
Latency Tolerance Reporting mechanism, which has nothing to do with Atomic
Ops.
No functional change intended.
Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
---
drivers/net/ethernet/qlogic/qed/qed_rdma.c | 20 ----------
include/linux/qed/qed_rdma_if.h | 55 +---------------------------
2 files changed, 1 insertion(+), 74 deletions(-)
diff --git a/drivers/net/ethernet/qlogic/qed/qed_rdma.c b/drivers/net/ethernet/qlogic/qed/qed_rdma.c
index c8c4b3940564..1091b6aae0c6 100644
--- a/drivers/net/ethernet/qlogic/qed/qed_rdma.c
+++ b/drivers/net/ethernet/qlogic/qed/qed_rdma.c
@@ -394,7 +394,6 @@ static void qed_rdma_init_devinfo(struct qed_hwfn *p_hwfn,
{
struct qed_rdma_device *dev = p_hwfn->p_rdma_info->dev;
struct qed_dev *cdev = p_hwfn->cdev;
- u32 pci_status_control;
u32 num_qps;
/* Vendor specific information */
@@ -468,25 +467,6 @@ static void qed_rdma_init_devinfo(struct qed_hwfn *p_hwfn,
dev->max_ah = p_hwfn->p_rdma_info->num_qps;
dev->max_stats_queues = (u8)RESC_NUM(p_hwfn, QED_RDMA_STATS_QUEUE);
- /* Set capablities */
- dev->dev_caps = 0;
- SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_RNR_NAK, 1);
- SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_PORT_ACTIVE_EVENT, 1);
- SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_PORT_CHANGE_EVENT, 1);
- SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_RESIZE_CQ, 1);
- SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_BASE_MEMORY_EXT, 1);
- SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_BASE_QUEUE_EXT, 1);
- SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_ZBVA, 1);
- SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_LOCAL_INV_FENCE, 1);
-
- /* Check atomic operations support in PCI configuration space. */
- pci_read_config_dword(cdev->pdev,
- cdev->pdev->pcie_cap + PCI_EXP_DEVCTL2,
- &pci_status_control);
-
- if (pci_status_control & PCI_EXP_DEVCTL2_LTR_EN)
- SET_FIELD(dev->dev_caps, QED_RDMA_DEV_CAP_ATOMIC_OP, 1);
-
if (QED_IS_IWARP_PERSONALITY(p_hwfn))
qed_iwarp_init_devinfo(p_hwfn);
}
diff --git a/include/linux/qed/qed_rdma_if.h b/include/linux/qed/qed_rdma_if.h
index 4dd72ba210f5..a8db5572d3c2 100644
--- a/include/linux/qed/qed_rdma_if.h
+++ b/include/linux/qed/qed_rdma_if.h
@@ -109,60 +109,7 @@ struct qed_rdma_device {
u8 max_pkey;
u16 max_srq_wr;
u8 max_stats_queues;
- u32 dev_caps;
-
- /* Abilty to support RNR-NAK generation */
-
-#define QED_RDMA_DEV_CAP_RNR_NAK_MASK 0x1
-#define QED_RDMA_DEV_CAP_RNR_NAK_SHIFT 0
- /* Abilty to support shutdown port */
-#define QED_RDMA_DEV_CAP_SHUTDOWN_PORT_MASK 0x1
-#define QED_RDMA_DEV_CAP_SHUTDOWN_PORT_SHIFT 1
- /* Abilty to support port active event */
-#define QED_RDMA_DEV_CAP_PORT_ACTIVE_EVENT_MASK 0x1
-#define QED_RDMA_DEV_CAP_PORT_ACTIVE_EVENT_SHIFT 2
- /* Abilty to support port change event */
-#define QED_RDMA_DEV_CAP_PORT_CHANGE_EVENT_MASK 0x1
-#define QED_RDMA_DEV_CAP_PORT_CHANGE_EVENT_SHIFT 3
- /* Abilty to support system image GUID */
-#define QED_RDMA_DEV_CAP_SYS_IMAGE_MASK 0x1
-#define QED_RDMA_DEV_CAP_SYS_IMAGE_SHIFT 4
- /* Abilty to support bad P_Key counter support */
-#define QED_RDMA_DEV_CAP_BAD_PKEY_CNT_MASK 0x1
-#define QED_RDMA_DEV_CAP_BAD_PKEY_CNT_SHIFT 5
- /* Abilty to support atomic operations */
-#define QED_RDMA_DEV_CAP_ATOMIC_OP_MASK 0x1
-#define QED_RDMA_DEV_CAP_ATOMIC_OP_SHIFT 6
-#define QED_RDMA_DEV_CAP_RESIZE_CQ_MASK 0x1
-#define QED_RDMA_DEV_CAP_RESIZE_CQ_SHIFT 7
- /* Abilty to support modifying the maximum number of
- * outstanding work requests per QP
- */
-#define QED_RDMA_DEV_CAP_RESIZE_MAX_WR_MASK 0x1
-#define QED_RDMA_DEV_CAP_RESIZE_MAX_WR_SHIFT 8
- /* Abilty to support automatic path migration */
-#define QED_RDMA_DEV_CAP_AUTO_PATH_MIG_MASK 0x1
-#define QED_RDMA_DEV_CAP_AUTO_PATH_MIG_SHIFT 9
- /* Abilty to support the base memory management extensions */
-#define QED_RDMA_DEV_CAP_BASE_MEMORY_EXT_MASK 0x1
-#define QED_RDMA_DEV_CAP_BASE_MEMORY_EXT_SHIFT 10
-#define QED_RDMA_DEV_CAP_BASE_QUEUE_EXT_MASK 0x1
-#define QED_RDMA_DEV_CAP_BASE_QUEUE_EXT_SHIFT 11
- /* Abilty to support multipile page sizes per memory region */
-#define QED_RDMA_DEV_CAP_MULTI_PAGE_PER_MR_EXT_MASK 0x1
-#define QED_RDMA_DEV_CAP_MULTI_PAGE_PER_MR_EXT_SHIFT 12
- /* Abilty to support block list physical buffer list */
-#define QED_RDMA_DEV_CAP_BLOCK_MODE_MASK 0x1
-#define QED_RDMA_DEV_CAP_BLOCK_MODE_SHIFT 13
- /* Abilty to support zero based virtual addresses */
-#define QED_RDMA_DEV_CAP_ZBVA_MASK 0x1
-#define QED_RDMA_DEV_CAP_ZBVA_SHIFT 14
- /* Abilty to support local invalidate fencing */
-#define QED_RDMA_DEV_CAP_LOCAL_INV_FENCE_MASK 0x1
-#define QED_RDMA_DEV_CAP_LOCAL_INV_FENCE_SHIFT 15
- /* Abilty to support Loopback on QP */
-#define QED_RDMA_DEV_CAP_LB_INDICATOR_MASK 0x1
-#define QED_RDMA_DEV_CAP_LB_INDICATOR_SHIFT 16
+
u64 page_size_caps;
u8 dev_ack_delay;
u32 reserved_lkey;
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