qed: Introduce VFs

This adds the qed VFs for the first time -
The vfs are limited functions, with a very different PCI bar structure
[when compared with PFs] to better impose the related security demands
associated with them.

This patch includes the logic neccesary to allow VFs to successfully probe
[without actually adding the ability to enable iov].
This includes diverging all the flows that would occur as part of the pci
probe of the driver, preventing VF from accessing registers/memories it
can't and instead utilize the VF->PF channel to query the PF for needed
information.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 65 insertions, 2 deletions

diff --git a/include/linux/qed/common_hsi.h b/include/linux/qed/common_hsi.h
index 8914d27..3f14c7e 100644
--- a/include/linux/qed/common_hsi.h
+++ b/include/linux/qed/common_hsi.h
@@ -285,6 +285,63 @@
 #define PXP_ILT_PAGE_SIZE_NUM_BITS_MIN	12
 #define PXP_ILT_BLOCK_FACTOR_MULTIPLIER	1024
 
+#define PXP_VF_BAR0_START_IGU                   0
+#define PXP_VF_BAR0_IGU_LENGTH                  0x3000
+#define PXP_VF_BAR0_END_IGU                     (PXP_VF_BAR0_START_IGU + \
+						 PXP_VF_BAR0_IGU_LENGTH - 1)
+
+#define PXP_VF_BAR0_START_DQ                    0x3000
+#define PXP_VF_BAR0_DQ_LENGTH                   0x200
+#define PXP_VF_BAR0_DQ_OPAQUE_OFFSET            0
+#define PXP_VF_BAR0_ME_OPAQUE_ADDRESS           (PXP_VF_BAR0_START_DQ +	\
+						 PXP_VF_BAR0_DQ_OPAQUE_OFFSET)
+#define PXP_VF_BAR0_ME_CONCRETE_ADDRESS         (PXP_VF_BAR0_ME_OPAQUE_ADDRESS \
+						 + 4)
+#define PXP_VF_BAR0_END_DQ                      (PXP_VF_BAR0_START_DQ +	\
+						 PXP_VF_BAR0_DQ_LENGTH - 1)
+
+#define PXP_VF_BAR0_START_TSDM_ZONE_B           0x3200
+#define PXP_VF_BAR0_SDM_LENGTH_ZONE_B           0x200
+#define PXP_VF_BAR0_END_TSDM_ZONE_B             (PXP_VF_BAR0_START_TSDM_ZONE_B \
+						 +			       \
+						 PXP_VF_BAR0_SDM_LENGTH_ZONE_B \
+						 - 1)
+
+#define PXP_VF_BAR0_START_MSDM_ZONE_B           0x3400
+#define PXP_VF_BAR0_END_MSDM_ZONE_B             (PXP_VF_BAR0_START_MSDM_ZONE_B \
+						 +			       \
+						 PXP_VF_BAR0_SDM_LENGTH_ZONE_B \
+						 - 1)
+
+#define PXP_VF_BAR0_START_USDM_ZONE_B           0x3600
+#define PXP_VF_BAR0_END_USDM_ZONE_B             (PXP_VF_BAR0_START_USDM_ZONE_B \
+						 +			       \
+						 PXP_VF_BAR0_SDM_LENGTH_ZONE_B \
+						 - 1)
+
+#define PXP_VF_BAR0_START_XSDM_ZONE_B           0x3800
+#define PXP_VF_BAR0_END_XSDM_ZONE_B             (PXP_VF_BAR0_START_XSDM_ZONE_B \
+						 +			       \
+						 PXP_VF_BAR0_SDM_LENGTH_ZONE_B \
+						 - 1)
+
+#define PXP_VF_BAR0_START_YSDM_ZONE_B           0x3a00
+#define PXP_VF_BAR0_END_YSDM_ZONE_B             (PXP_VF_BAR0_START_YSDM_ZONE_B \
+						 +			       \
+						 PXP_VF_BAR0_SDM_LENGTH_ZONE_B \
+						 - 1)
+
+#define PXP_VF_BAR0_START_PSDM_ZONE_B           0x3c00
+#define PXP_VF_BAR0_END_PSDM_ZONE_B             (PXP_VF_BAR0_START_PSDM_ZONE_B \
+						 +			       \
+						 PXP_VF_BAR0_SDM_LENGTH_ZONE_B \
+						 - 1)
+
+#define PXP_VF_BAR0_START_SDM_ZONE_A            0x4000
+#define PXP_VF_BAR0_END_SDM_ZONE_A              0x10000
+
+#define PXP_VF_BAR0_GRC_WINDOW_LENGTH           32
+
 /* ILT Records */
 #define PXP_NUM_ILT_RECORDS_BB 7600
 #define PXP_NUM_ILT_RECORDS_K2 11000
diff --git a/include/linux/qed/qed_if.h b/include/linux/qed/qed_if.h
index d72c832..76a6f16 100644
--- a/include/linux/qed/qed_if.h
+++ b/include/linux/qed/qed_if.h
@@ -140,6 +140,13 @@ struct qed_link_output {
 	u32	pause_config;
 };
 
+struct qed_probe_params {
+	enum qed_protocol protocol;
+	u32 dp_module;
+	u8 dp_level;
+	bool is_vf;
+};
+
 #define QED_DRV_VER_STR_SIZE 12
 struct qed_slowpath_params {
 	u32	int_mode;
@@ -207,8 +214,7 @@ struct qed_common_ops {
 	struct qed_selftest_ops *selftest;
 
 	struct qed_dev*	(*probe)(struct pci_dev *dev,
-				 enum qed_protocol protocol,
-				 u32 dp_module, u8 dp_level);
+				 struct qed_probe_params *params);
 
 	void		(*remove)(struct qed_dev *cdev);